/* Tailwind CSS */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@3.3.0/base.min.css');

/* Ana Tema Renkleri */
:root {
    --primary-color: rgba(17, 62, 118, 1);
    --secondary-color: rgba(22, 128, 154, 1);
    --accent-color: rgba(66, 168, 171, 1);
    --success-color: #10B981;
    --danger-color: #EF4444;
    --dark-color: #1F2937;
    --light-color: #F3F4F6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', 'Segoe UI', -apple-system, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Navbar */
.navbar {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.navbar-brand:hover {
    color: var(--accent-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #2563EB;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

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

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

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #E5E7EB;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-fluid {
    width: 100%;
    padding: 0 1rem;
}

/* Stats Cards */
.stat-card {
    background: linear-gradient(135deg, var(--primary-color), #2563EB);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.alert-success {
    background: #D1FAE5;
    color: #065F46;
    border-left: 4px solid var(--success-color);
}

.alert-error {
    background: #FEE2E2;
    color: #991B1B;
    border-left: 4px solid var(--danger-color);
}

.alert-info {
    background: #DBEAFE;
    color: #1E40AF;
    border-left: 4px solid var(--primary-color);
}

/* QR Code Display */
.qr-container {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.qr-code {
    max-width: 300px;
    margin: 0 auto;
}

.session-code {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    letter-spacing: 0.2em;
    margin-top: 1rem;
}

/* Live Results */
.live-indicator {
    display: inline-block;
    width: 12px;
    height: 12px;
    background: var(--danger-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
    margin-right: 0.5rem;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Progress Bar */
.progress {
    height: 24px;
    background: #E5E7EB;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

/* ==================== */
/* RESPONSIVE - TABLET */
/* ==================== */
@media (max-width: 992px) {
    .container {
        padding: 0 1.5rem;
    }
    
    h1 { font-size: 2.5rem !important; }
    h2 { font-size: 2rem !important; }
    
    .card {
        padding: 1.25rem;
    }
}

/* ==================== */
/* RESPONSIVE - MOBILE */
/* ==================== */
@media (max-width: 768px) {
    /* Typography */
    html {
        font-size: 15px;
    }
    
    h1 { font-size: 1.8rem !important; line-height: 1.3 !important; }
    h2 { font-size: 1.5rem !important; }
    h3 { font-size: 1.2rem !important; }
    
    /* Container */
    .container {
        padding: 0 1rem;
    }
    
    /* Navbar */
    .navbar {
        padding: 0.5rem 0;
    }
    
    .navbar-brand {
        font-size: 1rem;
    }
    
    .navbar-brand img {
        height: 50px !important;
    }
    
    /* Navbar Buttons */
    .btn-nav-outline,
    .btn-nav-primary {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
    
    /* Flex Layout */
    .d-flex {
        flex-wrap: wrap;
    }
    
    .d-flex.justify-content-between {
        gap: 0.5rem;
    }
    
    /* Cards */
    .card {
        padding: 1rem;
        margin-bottom: 0.75rem;
    }
    
    .card-title {
        font-size: 1.1rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    /* Stats */
    .stat-card {
        padding: 1.25rem;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .stat-label {
        font-size: 0.85rem;
    }
    
    /* Forms */
    .form-control {
        padding: 0.65rem;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
    
    /* Alerts */
    .alert {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    /* QR Container */
    .qr-container {
        padding: 1.5rem 1rem;
    }
    
    .qr-code {
        max-width: 200px;
    }
    
    .session-code {
        font-size: 1.5rem;
        letter-spacing: 0.1em;
    }
    
    /* Progress */
    .progress {
        height: 20px;
    }
    
    /* Footer */
    footer {
        padding: 2rem 0 !important;
        margin-top: 2rem !important;
    }
    
    footer h3, footer h4 {
        font-size: 1.1rem !important;
    }
    
    footer p, footer li, footer a {
        font-size: 0.9rem !important;
    }
}

/* ==================== */
/* RESPONSIVE - SMALL MOBILE */
/* ==================== */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    h1 { font-size: 1.5rem !important; }
    h2 { font-size: 1.3rem !important; }
    
    .container {
        padding: 0 0.75rem;
    }
    
    .navbar-brand img {
        height: 40px !important;
    }
    
    .btn-nav-outline,
    .btn-nav-primary {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    .card {
        padding: 0.875rem;
        border-radius: 10px;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
        width: 100%;
        text-align: center;
    }
    
    .d-flex.gap-2 {
        gap: 0.5rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .qr-code {
        max-width: 180px;
    }
    
    .session-code {
        font-size: 1.25rem;
    }
}

/* ==================== */
/* TOUCH & ACCESSIBILITY */
/* ==================== */
@media (hover: none) and (pointer: coarse) {
    /* Touch devices */
    .btn,
    .btn-nav-outline,
    .btn-nav-primary,
    .btn-hero-primary,
    .btn-hero-outline {
        min-height: 44px; /* Minimum touch target */
    }
    
    .card:hover {
        transform: none;
        box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    }
    
    .feature-card:hover {
        transform: none;
    }
}

/* ==================== */
/* LANDSCAPE MOBILE */
/* ==================== */
@media (max-height: 500px) and (orientation: landscape) {
    .hero-section {
        min-height: auto !important;
        padding: 2rem 0 !important;
    }
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }