/* ============================================
   MEDIARCHIVE - STYLES COMPLETS
   ============================================ */

:root {
    --primary-blue: #1E88E5;
    --primary-dark: #0d47a1;
    --primary-light: #64B5F6;
    --success-green: #2ECC71;
    --success-dark: #27ae60;
    --danger-red: #e74c3c;
    --warning-orange: #f39c12;
    --gray-light: #f4f8fb;
    --gray-medium: #e0e0e0;
    --gray-dark: #666;
    --white: #ffffff;
    --black: #333333;
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-md: 0 5px 20px rgba(0,0,0,0.15);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 15px;
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--gray-light);
    color: var(--black);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.2; }
h1 { font-size: 48px; }
h2 { font-size: 36px; }
h3 { font-size: 24px; }

/* HEADER */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    background: var(--primary-blue);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    flex-wrap: wrap;
    box-shadow: var(--shadow-sm);
}

.logo { font-size: 24px; font-weight: bold; display: flex; align-items: center; gap: 10px; }
.logo::before { content: "🏥"; font-size: 28px; }

nav { display: flex; gap: 25px; flex-wrap: wrap; }
nav a { color: var(--white); text-decoration: none; transition: var(--transition); font-weight: 500; }
nav a:hover { opacity: 0.8; }

.buttons { display: flex; gap: 12px; }
.buttons a { padding: 8px 20px; border-radius: 25px; text-decoration: none; transition: var(--transition); font-weight: 600; }
.login { background: var(--white); color: var(--primary-blue); }
.login:hover { background: var(--gray-light); transform: translateY(-2px); }
.register { background: var(--success-green); color: var(--white); }
.register:hover { background: var(--success-dark); transform: translateY(-2px); }

main { flex: 1; }

/* HERO */
.hero {
    min-height: 85vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 80px 20px;
    position: relative;
}

.hero-content { max-width: 800px; position: relative; z-index: 1; animation: fadeInUp 0.8s ease; }
.hero h1 { margin-bottom: 20px; }
.hero p { font-size: 20px; margin-bottom: 30px; }

.hero-buttons a { display: inline-block; margin: 10px; padding: 14px 32px; border-radius: 30px; text-decoration: none; transition: var(--transition); font-weight: bold; }
.btn-primary { background: var(--success-green); color: var(--white); }
.btn-primary:hover { background: var(--success-dark); transform: scale(1.05); }
.btn-secondary { background: var(--white); color: var(--primary-blue); }
.btn-secondary:hover { background: var(--gray-light); transform: scale(1.05); }

/* SERVICES */
.services { padding: 80px 20px; text-align: center; background: var(--white); }
.services h2 { color: var(--primary-blue); margin-bottom: 50px; }

.cards { display: flex; justify-content: center; gap: 30px; flex-wrap: wrap; max-width: 1200px; margin: 0 auto; }
.card {
    background: var(--white);
    padding: 35px 25px;
    width: 270px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
    border: 1px solid var(--gray-medium);
}
.card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.card h3 { margin-bottom: 15px; color: var(--primary-blue); }

/* STATS */
.stats {
    display: flex;
    justify-content: space-around;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 70px 20px;
    text-align: center;
    flex-wrap: wrap;
    gap: 40px;
}
.stats h3 { font-size: 48px; margin-bottom: 10px; }

/* FOOTER */
footer { text-align: center; padding: 40px; background: var(--primary-dark); color: var(--white); }
footer a { color: var(--white); text-decoration: none; margin: 0 15px; }

/* FORMULAIRES */
.form-container {
    max-width: 550px;
    margin: 60px auto;
    padding: 40px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.6s ease;
}
.form-container h2 { text-align: center; color: var(--primary-blue); margin-bottom: 30px; }
.form-container input, .form-container select, .form-container textarea {
    width: 100%;
    padding: 12px 15px;
    margin: 10px 0;
    border: 2px solid var(--gray-medium);
    border-radius: var(--radius-sm);
    font-size: 16px;
    transition: var(--transition);
}
.form-container input:focus, .form-container select:focus { outline: none; border-color: var(--primary-blue); }
.form-container button {
    width: 100%;
    padding: 14px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 10px;
}
.form-container button:hover { background: var(--primary-dark); }

.error { background: #fee; color: var(--danger-red); padding: 12px; border-radius: var(--radius-sm); margin: 15px 0; text-align: center; border-left: 4px solid var(--danger-red); }
.success { background: #e8f8f0; color: var(--success-green); padding: 12px; border-radius: var(--radius-sm); margin: 15px 0; text-align: center; border-left: 4px solid var(--success-green); }

/* DASHBOARD */
.dashboard-container { display: flex; min-height: 100vh; }

.sidebar {
    width: 280px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 30px 20px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.sidebar h3 { text-align: center; margin-bottom: 40px; padding-bottom: 20px; border-bottom: 2px solid rgba(255,255,255,0.2); }
.sidebar a { display: block; color: var(--white); text-decoration: none; padding: 12px 15px; margin: 5px 0; border-radius: var(--radius-sm); transition: var(--transition); }
.sidebar a:hover { background: rgba(255,255,255,0.2); padding-left: 25px; }

.main-content { flex: 1; padding: 30px; background: var(--gray-light); }
.main-content h1 { color: var(--primary-blue); margin-bottom: 30px; }

.stats-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 25px; margin-bottom: 40px; }
.stat-card { background: var(--white); padding: 25px; border-radius: var(--radius-md); text-align: center; box-shadow: var(--shadow-sm); transition: var(--transition); }
.stat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.stat-card h3 { font-size: 42px; color: var(--primary-blue); margin-bottom: 10px; }

.data-table { background: var(--white); border-radius: var(--radius-md); overflow-x: auto; box-shadow: var(--shadow-sm); }
.data-table table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 15px; text-align: left; border-bottom: 1px solid var(--gray-medium); }
.data-table th { background: var(--primary-blue); color: var(--white); }
.data-table tr:hover { background: var(--gray-light); }

.btn-action { padding: 6px 12px; border-radius: 5px; text-decoration: none; font-size: 14px; margin: 0 3px; transition: var(--transition); }
.btn-view { background: var(--primary-blue); color: var(--white); }
.btn-edit { background: var(--warning-orange); color: var(--white); }
.btn-delete { background: var(--danger-red); color: var(--white); }

/* CHATBOT */
.chat-container { max-width: 800px; margin: 30px auto; background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden; }
.chat-header { background: var(--primary-blue); color: var(--white); padding: 20px; text-align: center; }
.chat-messages { height: 400px; overflow-y: auto; padding: 20px; background: var(--gray-light); }
.message { margin-bottom: 15px; display: flex; }
.message.bot { justify-content: flex-start; }
.message.user { justify-content: flex-end; }
.message-content { max-width: 70%; padding: 12px 16px; border-radius: 18px; line-height: 1.5; }
.message.bot .message-content { background: var(--white); color: var(--black); border-bottom-left-radius: 5px; box-shadow: var(--shadow-sm); }
.message.user .message-content { background: var(--primary-blue); color: var(--white); border-bottom-right-radius: 5px; }
.chat-input { display: flex; padding: 20px; background: var(--white); border-top: 1px solid var(--gray-medium); }
.chat-input input { flex: 1; padding: 12px; border: 2px solid var(--gray-medium); border-radius: var(--radius-sm); font-size: 16px; margin-right: 10px; }
.chat-input button { padding: 12px 24px; background: var(--primary-blue); color: var(--white); border: none; border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition); }
.chat-input button:hover { background: #0d47a1; transform: scale(1.02); }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    header { flex-direction: column; gap: 15px; text-align: center; }
    nav { justify-content: center; }
    .hero h1 { font-size: 32px; }
    .dashboard-container { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: static; }
    .stats-cards { grid-template-columns: 1fr; }
    .cards { flex-direction: column; align-items: center; }
    .card { width: 90%; }
}

/* ============================================
   CARROUSEL D'IMAGES DE FOND
   ============================================ */

.slideshow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.slide.active { opacity: 1; }

.slideshow-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.55);
    z-index: 1;
}

header, main, footer, .dashboard-container, .form-container, 
.chat-container, .data-table, .sidebar, .main-content,
.welcome-section, .stats-cards, .card, .stat-card, .card-modern,
.patient-card, .consultation-card, .pre-card {
    position: relative;
    z-index: 2;
}

.form-container, .chat-container, .data-table, .card, 
.stat-card, .card-modern, .pre-card, .consultation-card,
.patient-card, .info-card, .upload-section, .documents-section {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.sidebar {
    background: linear-gradient(180deg, rgba(30,136,229,0.92) 0%, rgba(13,71,161,0.92) 100%);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.main-content, .welcome-section { background: transparent; }
h1, h2, h3, h4, p, label, .stat-number, .stat-label { text-shadow: none; }
.data-table th { background: rgba(30,136,229,0.95); }
body { background: transparent; }