/* ============================================
   prod Web Application - Design Moderne & Amélioré
   Version améliorée avec UX moderne et simplifiée
   ============================================ */

/* Variables CSS pour un design cohérent et professionnel - Version Améliorée */
:root {
    /* Couleurs principales - Thème professionnel moderne */
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --primary-hover: #1d4ed8;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-glow: 0 0 20px rgba(37, 99, 235, 0.3);
    
    --secondary: #64748b;
    --secondary-light: #94a3b8;
    
    /* États et feedback améliorés */
    --success: #10b981;
    --success-light: #34d399;
    --success-dark: #059669;
    --success-glow: 0 0 15px rgba(16, 185, 129, 0.3);
    
    --warning: #f59e0b;
    --warning-light: #fbbf24;
    --warning-glow: 0 0 15px rgba(245, 158, 11, 0.3);
    
    --danger: #ef4444;
    --danger-light: #f87171;
    --danger-glow: 0 0 15px rgba(239, 68, 68, 0.3);
    
    --info: #06b6d4;
    --info-light: #22d3ee;
    --info-glow: 0 0 15px rgba(6, 182, 212, 0.3);
    
    /* Neutres améliorés */
    --dark: #0f172a;
    --dark-gray: #1e293b;
    --gray: #64748b;
    --light-gray: #e2e8f0;
    --lighter-gray: #f1f5f9;
    --white: #ffffff;
    --off-white: #f8fafc;
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    
    /* Ombres professionnelles améliorées */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    --shadow-colored: 0 10px 30px rgba(37, 99, 235, 0.2);
    
    /* Rayons de bordure */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Transitions fluides améliorées */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Espacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
}

/* Reset et base améliorés */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 50%, #f8fafc 100%);
    background-size: 400% 400%;
    background-attachment: fixed;
    color: #1e293b;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "kern" 1, "liga" 1;
    letter-spacing: -0.01em;
    animation: subtleBackgroundShift 20s ease infinite;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    animation: backgroundGlow 15s ease infinite;
}

@keyframes subtleBackgroundShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes backgroundGlow {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.main-app {
    position: relative;
    z-index: 1;
    min-height: 100vh;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ============================================
   LOGIN SCREEN - Design Moderne Ultra
   ============================================ */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow: hidden;
    background: #0a0e1a;
}

.login-bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(44, 82, 130, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(192, 86, 33, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(74, 85, 104, 0.1) 0%, transparent 50%);
    z-index: 0;
    animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.login-grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(74, 85, 104, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 85, 104, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 1;
    pointer-events: none;
    opacity: 0.5;
}

.login-floating-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: floatElement 25s infinite ease-in-out;
}

.el-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(44, 82, 130, 0.4), transparent);
    top: -250px;
    left: -250px;
    animation-delay: 0s;
}

.el-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(192, 86, 33, 0.3), transparent);
    bottom: -200px;
    right: -200px;
    animation-delay: 8s;
}

.el-3 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(74, 85, 104, 0.35), transparent);
    top: 50%;
    right: -225px;
    animation-delay: 15s;
}

@keyframes floatElement {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(60px, 60px) scale(1.1);
    }
    66% {
        transform: translate(-40px, 40px) scale(0.95);
    }
}

.login-wrapper {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 460px;
    animation: cardEntrance 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    transition: transform 0.3s ease;
}

.login-wrapper:hover {
    transform: scale(1.005);
}

@keyframes cardEntrance {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
        filter: blur(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

.login-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border-radius: 32px;
    box-shadow: 
        0 25px 80px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.6) inset,
        0 0 100px rgba(44, 82, 130, 0.1);
    overflow: hidden;
    position: relative;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border: 2px solid transparent;
}

/* Glow effect autour de la carte - style Reactbits */
.login-card-glow {
    position: absolute;
    inset: -5px;
    border-radius: 37px;
    background: linear-gradient(135deg, #3182ce 0%, #2c5282 100%);
    opacity: 0;
    filter: blur(20px);
    transition: opacity 0.4s ease;
    z-index: -1;
    pointer-events: none;
    animation: loginGlowPulse 3s ease-in-out infinite;
}

@keyframes loginGlowPulse {
    0%, 100% {
        opacity: 0;
        transform: scale(1);
    }
    50% {
        opacity: 0.4;
        transform: scale(1.08);
    }
}

.login-card:hover .login-card-glow {
    opacity: 0.7;
    filter: blur(25px);
    animation: loginGlowPulse 1.5s ease-in-out infinite;
}

/* Shimmer/Shine effect - style Reactbits */
.login-card::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 70%
    );
    transform: rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
    z-index: 1;
    pointer-events: none;
}

.login-card::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.4) 50%,
        transparent 70%
    );
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
    z-index: 1;
    pointer-events: none;
}

.login-card:hover::before {
    opacity: 1;
}

.login-card:hover::after {
    opacity: 1;
    animation: loginShine 1.5s ease-in-out;
}

@keyframes loginShine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

/* Bordure gradient animée - style Reactbits */
.login-card-border-gradient {
    position: absolute;
    inset: -2px;
    border-radius: 34px;
    padding: 2px;
    background: linear-gradient(135deg, #3182ce, #2c5282, #4299e1, #3182ce);
    background-size: 200% 200%;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    pointer-events: none;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    -webkit-mask-composite: xor;
}

.login-card:hover .login-card-border-gradient {
    opacity: 1;
    animation: loginGradientShift 2s ease infinite;
}

@keyframes loginGradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.login-card:hover {
    transform: translateY(-8px) scale(1.03) perspective(1000px) rotateX(2deg);
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(66, 153, 225, 0.5);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.15), 
        0 8px 16px rgba(0, 0, 0, 0.1),
        0 0 30px rgba(66, 153, 225, 0.3);
    animation: loginCardHoverBounce 0.6s ease-out;
}

@keyframes loginCardHoverBounce {
    0% {
        transform: translateY(-8px) scale(1.03) perspective(1000px) rotateX(2deg);
    }
    50% {
        transform: translateY(-12px) scale(1.05) perspective(1000px) rotateX(3deg);
    }
    100% {
        transform: translateY(-8px) scale(1.03) perspective(1000px) rotateX(2deg);
    }
}

.login-card-header {
    background: linear-gradient(135deg, #2c5282 0%, #3182ce 100%);
    padding: 45px 40px 35px 40px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.login-card:hover .login-card-header {
    background: linear-gradient(135deg, #3182ce 0%, #4299e1 100%);
    box-shadow: inset 0 -2px 20px rgba(0, 0, 0, 0.1);
}

.login-card-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: rotatePattern 20s linear infinite;
    opacity: 0.3;
}

@keyframes rotatePattern {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.login-card:hover .login-brand {
    transform: translateY(-2px);
}

.login-logo-circle {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.2),
        inset 0 2px 10px rgba(255, 255, 255, 0.8);
    position: relative;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    flex-shrink: 0;
}

.login-logo-circle::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.login-logo-circle:hover {
    transform: scale(1.1) rotate(10deg);
}

.login-logo-circle:hover::before {
    opacity: 1;
}

.logo-inner {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 12px;
}

.logo-c {
    font-size: 42px;
    font-weight: 900;
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #e63946 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 2px;
    font-family: 'Inter', sans-serif;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.login-brand-text {
    flex: 1;
    color: white;
}

.login-main-title {
    font-size: 32px;
    font-weight: 800;
    margin: 0 0 6px 0;
    color: white;
    letter-spacing: -0.8px;
    line-height: 1.2;
    text-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.login-card:hover .login-main-title {
    transform: translateX(2px);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3), 0 0 10px rgba(255, 255, 255, 0.1);
    animation: loginTitleSlideUp 0.4s ease-out;
}

@keyframes loginTitleSlideUp {
    0% {
        transform: translateX(0) translateY(5px);
        opacity: 0.8;
    }
    100% {
        transform: translateX(2px) translateY(0);
        opacity: 1;
    }
}

.login-sub-title {
    font-size: 22px;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: -0.4px;
    line-height: 1.3;
    transition: all 0.3s ease;
}

.login-card:hover .login-sub-title {
    color: rgba(255, 255, 255, 1);
    transform: translateX(2px);
    animation: loginSubTitleFadeIn 0.5s ease-out 0.1s backwards;
}

@keyframes loginSubTitleFadeIn {
    0% {
        transform: translateX(0) translateY(10px);
        opacity: 0.6;
    }
    100% {
        transform: translateX(2px) translateY(0);
        opacity: 1;
    }
}

.login-year {
    font-size: 14px;
    font-weight: 500;
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.login-card:hover .login-year {
    color: rgba(255, 255, 255, 0.95);
    transform: translateX(2px);
}

.login-card-body {
    padding: 45px 40px;
    background: white;
    transition: all 0.3s ease;
}

.login-card:hover .login-card-body {
    background: linear-gradient(to bottom, #ffffff 0%, #f8fafc 100%);
}

.login-form {
    width: 100%;
}

.form-field {
    margin-bottom: 32px;
    position: relative;
    transition: all 0.3s ease;
}

.form-field:hover {
    transform: translateX(2px);
}

.field-label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 13px;
    font-weight: 600;
    color: #374151;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.field-label:hover {
    color: #3182ce;
    transform: translateX(3px);
}

.field-label:hover .field-icon {
    color: #3182ce;
    transform: scale(1.15) rotate(5deg);
}

.field-icon {
    color: #2c5282;
    font-size: 14px;
    width: 16px;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

/* Pulse animation pour les icônes - style Reactbits */
.form-field:hover .field-icon {
    color: #4299e1;
    transform: scale(1.1);
    animation: loginIconPulse 1.5s ease-in-out infinite;
}

@keyframes loginIconPulse {
    0%, 100% {
        transform: scale(1.1);
    }
    50% {
        transform: scale(1.2);
    }
}

.form-field:focus-within .field-icon {
    color: #3182ce;
    transform: scale(1.15) rotate(5deg);
    animation: loginIconPulse 1.5s ease-in-out infinite;
}

.input-container {
    position: relative;
    transition: all 0.3s ease;
}

.form-field:hover .input-container {
    transform: translateX(2px);
}

.form-field input {
    width: 100%;
    padding: 16px 18px;
    border: 2px solid #e5e7eb;
    border-radius: 14px;
    font-size: 15px;
    font-family: inherit;
    height: 56px;
    background: #f9fafb;
    box-sizing: border-box;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: #1e293b;
}

.form-field input::placeholder {
    color: #9ca3af;
    font-weight: 400;
    transition: color 0.3s ease;
}

/* Glow effect pour les inputs - style Reactbits */
.input-container::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: 16px;
    background: linear-gradient(135deg, #3182ce, #4299e1);
    opacity: 0;
    filter: blur(8px);
    transition: opacity 0.3s ease;
    z-index: -1;
    pointer-events: none;
}

.form-field:hover .input-container::before {
    opacity: 0.4;
    animation: loginInputGlowPulse 2s ease-in-out infinite;
}

@keyframes loginInputGlowPulse {
    0%, 100% {
        opacity: 0.4;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.02);
    }
}

.form-field:hover input {
    border-color: #cbd5e0;
    background: #ffffff;
    box-shadow: 
        0 2px 8px rgba(0, 0, 0, 0.05),
        0 0 0 3px rgba(49, 130, 206, 0.1);
    transform: translateY(-1px) scale(1.01);
    animation: loginInputHover 0.4s ease-out;
}

@keyframes loginInputHover {
    0% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-2px) scale(1.02);
    }
    100% {
        transform: translateY(-1px) scale(1.01);
    }
}

.form-field:hover input::placeholder {
    color: #718096;
    animation: loginPlaceholderFade 0.3s ease-out;
}

@keyframes loginPlaceholderFade {
    0% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.form-field input:focus {
    outline: none;
    border-color: #3182ce;
    background: white;
    box-shadow: 
        0 0 0 4px rgba(49, 130, 206, 0.1),
        0 4px 12px rgba(49, 130, 206, 0.15);
    transform: translateY(-2px);
}

.input-border {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #3182ce, #2c5282);
    border-radius: 0 0 14px 14px;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-field:focus-within .input-border {
    width: 100%;
}

.login-submit-btn {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 18px 28px;
    font-size: 16px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    height: 58px;
    margin-top: 12px;
    border-radius: 14px;
    box-shadow: 
        0 8px 24px rgba(102, 126, 234, 0.4),
        0 0 0 0 rgba(102, 126, 234, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-content {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    z-index: 3;
}

.btn-label {
    font-weight: 700;
    letter-spacing: 0.3px;
}

.btn-arrow {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
    z-index: 2;
}

/* Glow effect pour le bouton - style Reactbits */
.login-submit-btn::before {
    content: "";
    position: absolute;
    inset: -3px;
    border-radius: 17px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0;
    filter: blur(15px);
    transition: opacity 0.4s ease;
    z-index: -1;
    pointer-events: none;
    animation: loginBtnGlowPulse 2s ease-in-out infinite;
}

@keyframes loginBtnGlowPulse {
    0%, 100% {
        opacity: 0;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.1);
    }
}

.login-submit-btn:hover {
    transform: translateY(-4px) scale(1.02) perspective(1000px) rotateX(2deg);
    box-shadow: 
        0 16px 40px rgba(102, 126, 234, 0.6),
        0 0 0 6px rgba(102, 126, 234, 0.15),
        0 0 40px rgba(102, 126, 234, 0.4);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    animation: loginBtnHoverBounce 0.6s ease-out;
}

@keyframes loginBtnHoverBounce {
    0% {
        transform: translateY(-4px) scale(1.02) perspective(1000px) rotateX(2deg);
    }
    50% {
        transform: translateY(-6px) scale(1.04) perspective(1000px) rotateX(3deg);
    }
    100% {
        transform: translateY(-4px) scale(1.02) perspective(1000px) rotateX(2deg);
    }
}

.login-submit-btn:hover::before {
    opacity: 0.8;
    filter: blur(20px);
    animation: loginBtnGlowPulse 1s ease-in-out infinite;
}

.login-submit-btn:hover .btn-shine {
    left: 100%;
}

.login-submit-btn:hover .btn-arrow {
    transform: translateX(8px) scale(1.1) rotate(5deg);
    animation: loginBtnArrowPulse 1s ease-in-out infinite;
}

@keyframes loginBtnArrowPulse {
    0%, 100% {
        transform: translateX(8px) scale(1.1) rotate(5deg);
    }
    50% {
        transform: translateX(10px) scale(1.15) rotate(8deg);
    }
}

.login-submit-btn:hover .btn-label {
    letter-spacing: 0.5px;
    animation: loginBtnLabelSlide 0.4s ease-out;
}

@keyframes loginBtnLabelSlide {
    0% {
        transform: translateX(0);
        opacity: 0.9;
    }
    100% {
        transform: translateX(2px);
        opacity: 1;
    }
}

.login-submit-btn:active {
    transform: translateY(-2px) scale(1.01);
    box-shadow: 
        0 8px 20px rgba(102, 126, 234, 0.4),
        0 0 0 3px rgba(102, 126, 234, 0.2);
}

.error-message {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    display: block;
    animation: shake 0.5s;
    box-shadow: 
        0 4px 12px rgba(239, 68, 68, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* ============================================
   MAIN APPLICATION - Header Moderne
   ============================================ */
.main-app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--lighter-gray);
}

.app-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 20px 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.header-left {
    flex: 1;
}

.header-title-main {
    font-size: 20px;
    font-weight: 700;
    color: white;
    margin: 0 0 6px 0;
    letter-spacing: 0.3px;
}

.header-subtitle {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 16px 0;
    font-weight: 400;
}

.header-actions {
    display: flex;
    gap: 12px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.action-btn {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px 18px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.action-btn span {
    font-size: 16px;
}

.header-right {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
}

.of-details {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 250px;
}

.of-detail-item {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 6px;
    font-size: 12px;
}

.of-detail-item:last-child {
    margin-bottom: 0;
}

.detail-label {
    font-weight: 600;
    opacity: 0.9;
}

.detail-value {
    font-weight: 500;
    text-align: right;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-info {
    font-size: 13px;
    font-weight: 500;
    opacity: 0.95;
}

.logout-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

/* ============================================
   OF SELECTION - Design Moderne
   ============================================ */
.of-selection-container {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 20px;
    width: 100%;
    max-width: 100%;
}

.of-search-group {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.of-search-group input {
    flex: 1;
    padding: 14px 18px;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: var(--transition);
    height: 48px;
}

.of-search-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 120, 215, 0.1);
}

.btn-search {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    padding: 14px 28px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition);
    height: 48px;
    box-shadow: var(--shadow-md);
}

.btn-search:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-search:active {
    transform: translateY(0);
}

/* ============================================
   TABS - Design Moderne
   ============================================ */
.tab-control {
    display: flex;
    gap: 8px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 8px;
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow), var(--shadow-md);
    margin-bottom: 20px;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    scrollbar-width: thin;
}

.tab-button {
    flex: 1;
    min-width: 140px;
    padding: 12px 20px;
    background: transparent;
    color: var(--dark-gray);
    border: none;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}

.tab-button::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--primary);
    transition: var(--transition);
    border-radius: 3px 3px 0 0;
}

.tab-button:hover {
    background: var(--lighter-gray);
    color: var(--primary);
}

.tab-button.active {
    color: var(--primary);
    background: rgba(0, 120, 215, 0.1);
}

.tab-button.active::before {
    width: 80%;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease-in;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow-x: hidden !important;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   DATA GRID - Design Moderne
   ============================================ */
.data-grid-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow), var(--shadow-md);
    overflow-x: auto;
    overflow-y: visible;
    margin-bottom: 20px;
    width: 100%;
    max-width: 100%;
    transition: var(--transition);
    box-sizing: border-box;
}

.data-grid-container:hover {
    box-shadow: var(--shadow-xl), var(--shadow-colored);
}

.data-grid {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-grid thead {
    background: linear-gradient(135deg, var(--dark-gray) 0%, var(--dark) 100%);
    color: white;
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-grid th {
    padding: 14px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.data-grid tbody tr {
    border-bottom: 1px solid var(--light-gray);
    transition: var(--transition-fast);
}

.data-grid tbody tr {
    position: relative;
}

.data-grid tbody tr::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: var(--primary-gradient);
    transition: var(--transition);
    opacity: 0.1;
}

.data-grid tbody tr:hover::before {
    width: 4px;
}

.data-grid tbody tr:hover {
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.05) 0%, transparent 100%);
    transform: translateX(4px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.data-grid tbody tr.selected {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
}

.data-grid td {
    padding: 12px;
    vertical-align: middle;
}

.data-grid tbody tr {
    cursor: pointer;
}

/* ============================================
   MODALS - Design Moderne
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.2s ease-out;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl), var(--glass-shadow);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideUp 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-content::-webkit-scrollbar {
    width: 8px;
}

.modal-content::-webkit-scrollbar-track {
    background: var(--lighter-gray);
    border-radius: var(--radius-md);
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--gray);
    border-radius: var(--radius-md);
}

.modal-content::-webkit-scrollbar-thumb:hover {
    background: var(--dark-gray);
}

.modal-large {
    max-width: 900px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 2px solid var(--light-gray);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 0;
}

.modal-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-md);
    transition: var(--transition);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.modal-body {
    padding: 24px;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.modal-form .form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.modal-form .form-group {
    display: flex;
    flex-direction: column;
}

.modal-form .form-group.full-width {
    grid-column: 1 / -1;
}

.modal-form label {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 6px;
}

.modal-form input,
.modal-form select,
.modal-form textarea {
    padding: 12px 16px;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--white);
}

.modal-form input:focus,
.modal-form select:focus,
.modal-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 120, 215, 0.1);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 2px solid var(--light-gray);
}

.btn {
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--gray);
    color: white;
}

.btn-secondary:hover {
    background: var(--dark-gray);
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #c0392b 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #229954 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   CHIPS & KPI - Design Moderne
   ============================================ */
.chips-panel {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 14px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    animation: scaleIn 0.3s ease-out;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.chip:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.chip-conforme {
    background: linear-gradient(135deg, var(--success-light) 0%, var(--success) 100%);
    color: white;
}

.chip-nonconforme {
    background: linear-gradient(135deg, var(--warning) 0%, #e67e22 100%);
    color: white;
}

.chip-rebut {
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    color: white;
}

.chip-label {
    opacity: 0.95;
}

.chip-value {
    font-size: 18px;
    font-weight: 700;
}

/* ============================================
   NOTIFICATIONS - Design Moderne
   ============================================ */
.notification {
    position: fixed;
    top: 80px !important;
    right: 20px;
    background: var(--white);
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 10000 !important;
    min-width: 300px;
    max-width: 400px;
    animation: slideInRight 0.3s ease-out;
    border-left: 4px solid;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.notification.success {
    border-left-color: var(--success);
}

.notification.error {
    border-left-color: var(--danger);
}

.notification.warning {
    border-left-color: var(--warning);
}

.notification.info {
    border-left-color: var(--info);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.notification-icon {
    font-size: 20px;
    font-weight: bold;
}

.notification-message {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
}

/* ============================================
   LOADING - Design Moderne
   ============================================ */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.loading-spinner {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: scaleIn 0.3s ease-out;
}

.loading-spinner i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 16px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.loading-spinner p {
    font-size: 14px;
    color: var(--dark-gray);
    font-weight: 500;
}

/* ============================================
   BUTTONS - Design Moderne
   ============================================ */
/* Toolbar pour les arrêts */
.arrets-toolbar {
    margin-bottom: 20px;
    display: flex;
    justify-content: flex-start;
    gap: 12px;
}

.btn-add-shift,
.btn-add-arret {
    background: linear-gradient(135deg, var(--success) 0%, #229954 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-add-shift:hover,
.btn-add-arret:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-add-shift.disabled,
.btn-add-arret.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: linear-gradient(135deg, #94a3b8 0%, #64748b 100%);
    pointer-events: none;
}

.btn-add-shift.disabled:hover,
.btn-add-arret.disabled:hover {
    transform: none;
    box-shadow: var(--shadow-md);
}

/* ============================================
   RESPONSIVE - Améliorations
   ============================================ */
@media (max-width: 1200px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .of-selection-container {
        margin: 0 0 20px 0;
    }
    
    .tab-control {
        margin: 0 0 20px 0;
    }
    
    .data-grid-container {
        margin: 0 0 20px 0;
        overflow-x: auto;
    }
}

@media (max-width: 768px) {
    .login-container {
        padding: 16px;
    }
    
    .login-wrapper {
        max-width: 100%;
    }
    
    .login-card {
        border-radius: 24px;
    }
    
    .login-card-header {
        padding: 35px 28px 28px 28px;
    }
    
    .login-brand {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .login-logo-circle {
        width: 80px;
        height: 80px;
    }
    
    .logo-c {
        font-size: 36px;
    }
    
    .login-brand-text {
        width: 100%;
    }
    
    .login-main-title {
        font-size: 26px;
    }
    
    .login-sub-title {
        font-size: 18px;
    }
    
    .login-year {
        font-size: 13px;
    }
    
    .login-card-body {
        padding: 35px 28px;
    }
    
    .form-field {
        margin-bottom: 28px;
    }
    
    .form-field input {
        height: 52px;
        font-size: 14px;
        padding: 14px 16px;
    }
    
    .login-submit-btn {
        height: 54px;
        font-size: 15px;
        padding: 16px 24px;
    }
    
    .floating-element {
        filter: blur(60px);
    }
    
    .el-1 {
        width: 350px;
        height: 350px;
    }
    
    .el-2 {
        width: 300px;
        height: 300px;
    }
    
    .el-3 {
        width: 320px;
        height: 320px;
    }
    
    .header-title-main {
        font-size: 16px;
    }
    
    .header-subtitle {
        font-size: 12px;
    }
    
    .action-btn {
        font-size: 12px;
        padding: 8px 14px;
    }
    
    .tab-button {
        min-width: 120px;
        font-size: 12px;
        padding: 10px 16px;
    }
    
    .modal-content {
        margin: 20px;
        max-height: 85vh;
    }
    
    .modal-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .chips-panel {
        flex-direction: column;
    }
    
    .chip {
        width: 100%;
        justify-content: space-between;
    }
}

/* ============================================
   TOOLTIPS & AIDE CONTEXTUELLE
   ============================================ */
[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 12px;
    background: var(--dark);
    color: white;
    font-size: 12px;
    border-radius: var(--radius-md);
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 8px;
    box-shadow: var(--shadow-md);
    animation: fadeIn 0.2s ease-out;
}

[data-tooltip]:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--dark);
    margin-bottom: 2px;
    z-index: 1000;
}

/* ============================================
   AMÉLIORATIONS UX
   ============================================ */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray);
    font-size: 16px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.empty-state::before {
    content: '📋';
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* Amélioration des inputs avec icônes */
.input-with-icon {
    position: relative;
}

.input-with-icon input {
    padding-left: 40px;
}

.input-with-icon::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    opacity: 0.5;
}

/* Animations de chargement pour les données */
.data-grid tbody tr {
    animation: fadeInRow 0.3s ease-out;
    animation-fill-mode: both;
}

@keyframes fadeInRow {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.data-grid tbody tr:nth-child(1) { animation-delay: 0.05s; }
.data-grid tbody tr:nth-child(2) { animation-delay: 0.1s; }
.data-grid tbody tr:nth-child(3) { animation-delay: 0.15s; }
.data-grid tbody tr:nth-child(4) { animation-delay: 0.2s; }
.data-grid tbody tr:nth-child(5) { animation-delay: 0.25s; }

/* ============================================
   ANALYSE AVANCÉE - Styles spécifiques
   ============================================ */
.advanced-kpi-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.advanced-kpi-card {
    display: flex;
    align-items: center;
    padding: 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    color: white;
    transition: var(--transition);
    animation: fadeIn 0.3s ease-out;
}

.advanced-kpi-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.advanced-kpi-icon {
    font-size: 36px;
    margin-right: 15px;
    opacity: 0.9;
}

.advanced-kpi-content {
    flex: 1;
}

.advanced-kpi-title {
    font-size: 13px;
    opacity: 0.9;
    margin-bottom: 5px;
    font-weight: 500;
}

.advanced-kpi-value {
    font-size: 24px;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Boutons presets */
.btn-chip {
    padding: 6px 16px;
    font-size: 13px;
    border-radius: 20px;
    border: 2px solid var(--primary);
    background: var(--white);
    color: var(--primary);
    cursor: pointer;
    transition: var(--transition-fast);
    margin-right: 8px;
    font-weight: 500;
}

.btn-chip:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-chip.active {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

/* Mise en forme conditionnelle pour le tableau */
.advanced-grid .cell-conditional {
    font-weight: 600;
    border-radius: 4px;
    padding: 8px 12px;
    transition: var(--transition-fast);
}

.advanced-grid tbody tr:hover .cell-conditional {
    transform: scale(1.05);
}

/* Responsive pour Analyse Avancée */
@media (max-width: 768px) {
    .advanced-kpi-cards {
        grid-template-columns: 1fr;
    }
    
    .advanced-filters {
        flex-wrap: wrap;
    }
    
    .btn-chip {
        margin-bottom: 8px;
    }
}

/* ============================================
   MENUS CONTEXTUELS
   ============================================ */
.context-menu {
    position: fixed;
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 4px 0;
    z-index: 10000;
    min-width: 220px;
    font-size: 14px;
}

.context-menu-item {
    padding: 10px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background-color 0.2s;
}

.context-menu-item:hover {
    background-color: #f0f0f0;
}

.context-menu-item i {
    width: 18px;
    color: #666;
}

.context-menu-separator {
    height: 1px;
    background: #e0e0e0;
    margin: 4px 0;
}

/* ============================================
   INTERFACE D'IMPORT EXCEL AMÉLIORÉE
   ============================================ */

/* Header avec icône */
.group-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--light-gray);
}

.header-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-radius: var(--radius-lg);
    font-size: 24px;
    box-shadow: var(--shadow-md);
}

.header-text h3 {
    margin: 0;
    font-size: 24px;
    color: var(--dark);
    font-weight: 700;
}

.header-text p {
    margin: var(--spacing-xs) 0 0 0;
    color: var(--gray);
    font-size: 14px;
}

/* Zone de drop améliorée */
.excel-upload-zone {
    border: 3px dashed var(--light-gray);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    background: var(--off-white);
    transition: var(--transition);
    margin-bottom: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.excel-upload-zone::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    transition: left 0.5s;
}

.excel-upload-zone:hover::before {
    left: 100%;
}

.excel-upload-zone.drag-over {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
    transform: scale(1.02);
}

.upload-zone-content {
    position: relative;
    z-index: 1;
}

.upload-icon {
    font-size: 64px;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.upload-zone-content h4 {
    font-size: 20px;
    color: var(--dark);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.upload-zone-content p {
    color: var(--gray);
    margin: var(--spacing-sm) 0;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 16px;
    font-weight: 600;
    margin: var(--spacing-md) 0;
}

.upload-hint {
    font-size: 13px;
    color: var(--secondary);
    margin-top: var(--spacing-sm);
}

/* Info du fichier sélectionné */
.upload-file-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--primary-light);
}

.upload-file-info i {
    font-size: 32px;
    color: var(--success);
}

.file-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.file-name {
    font-weight: 600;
    color: var(--dark);
    font-size: 15px;
}

.file-size {
    font-size: 13px;
    color: var(--gray);
}

.btn-remove-file {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--danger-light);
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.btn-remove-file:hover {
    background: var(--danger);
    transform: scale(1.1);
}

/* Aperçu des données */
.excel-preview {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--light-gray);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--light-gray);
}

.preview-header h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--dark);
    font-size: 18px;
    margin: 0;
}

.preview-count {
    background: var(--primary-light);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
}

.preview-table-container {
    max-height: 400px;
    overflow: auto;
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-md);
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.preview-table thead {
    position: sticky;
    top: 0;
    background: var(--primary);
    color: var(--white);
    z-index: 10;
}

.preview-table th {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.preview-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--light-gray);
}

.preview-table tbody tr:hover {
    background: var(--lighter-gray);
}

.preview-table tbody tr:nth-child(even) {
    background: var(--off-white);
}

/* Carte d'information */
.excel-info-card {
    background: linear-gradient(135deg, var(--info-light) 0%, var(--info) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    color: var(--white);
}

.info-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.info-card-header i {
    font-size: 24px;
}

.info-card-header h4 {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
}

.format-info {
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
}

.column-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.column-badge {
    background: rgba(255, 255, 255, 0.3);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
}

.info-note {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 14px;
}

/* Barre d'actions */
.excel-actions-bar {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

/* Carte de statut */
.excel-status-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--light-gray);
}

.excel-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.excel-status i {
    font-size: 18px;
}

.excel-status.info {
    background: var(--info-light);
    color: var(--info);
}

.excel-status.success {
    background: var(--success-light);
    color: var(--success-dark);
}

.excel-status.error {
    background: var(--danger-light);
    color: var(--danger);
}

.progress-bar-container {
    margin-top: var(--spacing-md);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
}

#progressDetails {
    font-size: 12px;
    color: var(--gray);
    font-weight: 400;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--light-gray);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Boutons améliorés */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    box-shadow: var(--shadow-sm);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--white);
}

.btn-secondary:hover {
    background: var(--dark-gray);
}

/* Responsive pour import Excel */
@media (max-width: 768px) {
    .excel-upload-zone {
        padding: var(--spacing-lg);
    }
    
    .upload-icon {
        font-size: 48px;
    }
    
    .column-list {
        flex-direction: column;
    }
    
    .excel-actions-bar {
        flex-direction: column;
    }
    
    .excel-actions-bar .btn {
        width: 100%;
        justify-content: center;
    }
}