/* ===================================================
   EduSurvey - Main Stylesheet (Glassmorphism & MOE Theme)
   =================================================== */

:root {
    /* MOE Color Palette (Green & Gold) */
    --moe-green: #1B5E20;
    --moe-green-light: #2E7D32;
    --moe-green-dark: #0A3D0C;
    --moe-gold: #F9A825;
    --moe-gold-light: #FBC02D;
    
    /* Background & Surface */
    --bg-color: #f0f4f1;
    --surface-color: rgba(255, 255, 255, 0.85);
    --text-primary: #2d3748;
    --text-secondary: #718096;
    
    /* Glassmorphism settings */
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-shadow: 0 8px 32px 0 rgba(27, 94, 32, 0.1);
    
    /* Typography */
    --font-heading: 'Noto Sans Thai', sans-serif;
    --font-body: 'Inter', 'Noto Sans Thai', sans-serif;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(27, 94, 32, 0.05), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(249, 168, 37, 0.05), transparent 25%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6, .brand-title {
    font-family: var(--font-heading);
    font-weight: 700;
}

/* --- Layout --- */
.main-content {
    flex: 1;
    padding-top: 80px;
    padding-bottom: 60px;
}

/* --- Glassmorphism Card --- */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--glass-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    box-shadow: 0 12px 40px 0 rgba(27, 94, 32, 0.15);
}

/* --- Navbar --- */
.navbar-custom {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    padding: 10px 0;
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--moe-green), var(--moe-green-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 4px 10px rgba(27, 94, 32, 0.3);
}

.brand-title {
    color: var(--moe-green-dark);
    font-size: 1.2rem;
    line-height: 1.2;
    margin: 0;
}

.brand-subtitle {
    color: var(--moe-gold);
    font-weight: 500;
    font-size: 0.8rem;
}

/* --- Buttons --- */
.btn-gold {
    background: linear-gradient(135deg, var(--moe-gold), var(--moe-gold-light));
    color: #000;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    padding: 8px 24px;
    box-shadow: 0 4px 15px rgba(249, 168, 37, 0.3);
    transition: all 0.3s ease;
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 168, 37, 0.4);
    color: #000;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-color);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.btn-icon:hover {
    background: var(--moe-green-light);
    color: white;
}

/* --- Forms --- */
.form-label-custom {
    font-weight: 600;
    color: var(--moe-green-dark);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-control-custom {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(27, 94, 32, 0.2);
    border-radius: 12px;
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.form-control-custom:focus {
    background: #fff;
    border-color: var(--moe-green);
    box-shadow: 0 0 0 4px rgba(27, 94, 32, 0.1);
}

/* Custom Checkbox/Radio */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.checkbox-custom, .radio-custom {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 30px;
    cursor: pointer;
    user-select: none;
    font-size: 0.95rem;
}

.checkbox-custom input, .radio-custom input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    height: 20px;
    width: 20px;
    background-color: rgba(255,255,255,0.8);
    border: 2px solid var(--moe-green-light);
    transition: all 0.2s;
}

.checkbox-custom .checkmark { border-radius: 6px; }
.radio-custom .checkmark { border-radius: 50%; }

.checkbox-custom:hover input ~ .checkmark,
.radio-custom:hover input ~ .checkmark {
    background-color: #eee;
}

.checkbox-custom input:checked ~ .checkmark,
.radio-custom input:checked ~ .checkmark {
    background-color: var(--moe-green);
    border-color: var(--moe-green);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-custom input:checked ~ .checkmark:after,
.radio-custom input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-custom .checkmark:after {
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.radio-custom .checkmark:after {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: white;
}

/* --- Hero Section --- */
.hero-section {
    background: linear-gradient(135deg, var(--moe-green-dark) 0%, var(--moe-green) 50%, #224a24 100%);
    padding: 60px 0;
    color: white;
    position: relative;
    overflow: hidden;
    margin-bottom: 40px;
    border-radius: 0 0 40px 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg opacity="0.05" width="20" height="20" xmlns="http://www.w3.org/2000/svg"><circle cx="2" cy="2" r="2" fill="white"/></svg>');
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 25px;
}

.hero-badge {
    display: inline-block;
    background: rgba(249, 168, 37, 0.2);
    border: 1px solid var(--moe-gold);
    color: var(--moe-gold-light);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    backdrop-filter: blur(5px);
}

/* --- Wizard Progress --- */
.progress-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    position: relative;
}

.step-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1;
    opacity: 0.5;
    transition: all 0.3s;
}

.step-indicator.active {
    opacity: 1;
}

.step-num {
    width: 32px;
    height: 32px;
    background: var(--surface-color);
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 5px;
    transition: all 0.3s;
}

.step-indicator.active .step-num {
    background: var(--moe-green);
    border-color: var(--moe-green);
    color: white;
    box-shadow: 0 0 0 4px rgba(27, 94, 32, 0.2);
}

.step-label {
    font-size: 0.8rem;
    font-weight: 600;
}

.progress-bar-custom {
    background: linear-gradient(90deg, var(--moe-green), var(--moe-green-light));
    border-radius: 10px;
}

/* --- Survey Steps --- */
.form-step {
    display: none;
}
.form-step.active {
    display: block;
    animation: fadeInRight 0.5s ease forwards;
}

.card-header-custom {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.card-header-icon {
    width: 50px;
    height: 50px;
    border-radius: 15px;
    background: rgba(27, 94, 32, 0.1);
    color: var(--moe-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 15px;
}

.strategy-icon {
    background: linear-gradient(135deg, var(--moe-gold), var(--moe-gold-light));
    color: white;
    font-weight: bold;
    font-size: 1.5rem;
}

.card-title-custom {
    font-size: 1.25rem;
    margin: 0;
    color: var(--moe-green-dark);
}

.card-subtitle-custom {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
}

/* --- Question Blocks --- */
.question-block {
    background: rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid rgba(0,0,0,0.03);
}

.question-header {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.question-number {
    width: 30px;
    height: 30px;
    min-width: 30px;
    background: var(--moe-green);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 15px;
    margin-top: 2px;
}

.question-text {
    font-size: 1.05rem;
    line-height: 1.5;
    margin: 0;
}

/* --- Footer --- */
.footer-custom {
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--glass-border);
    padding: 20px 0;
    margin-top: auto;
}

/* --- Login Page --- */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--moe-green-dark);
    position: relative;
    overflow: hidden;
}

.login-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: url('https://images.unsplash.com/photo-1577896851231-70ef18881754?q=80&w=2070&auto=format&fit=crop') center/cover;
    opacity: 0.2;
    filter: grayscale(50%);
}

.login-card {
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

.login-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--moe-green), var(--moe-green-light));
    color: white;
    font-size: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    margin: 0 auto;
    box-shadow: 0 10px 20px rgba(27, 94, 32, 0.3);
    transform: rotate(-5deg);
}

/* --- Admin Layout --- */
.admin-body {
    background-color: var(--bg-color);
}

.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: #fff;
    border-right: 1px solid rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 1000;
    transition: transform 0.3s ease;
    box-shadow: 4px 0 10px rgba(0,0,0,0.02);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-icon-lg {
    width: 35px;
    height: 35px;
    background: var(--moe-green);
    color: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-right: 10px;
}

.sidebar-brand-text span {
    display: block;
    font-weight: 700;
    font-size: 1.1rem;
}

.sidebar-brand-text small {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.sidebar-nav {
    padding: 20px 0;
    overflow-y: auto;
    flex: 1;
}

.nav-section {
    margin-bottom: 20px;
}

.nav-section-title {
    padding: 0 20px;
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 10px;
    display: block;
    letter-spacing: 1px;
}

.nav-link-custom {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-link-custom i {
    font-size: 1.2rem;
    margin-right: 15px;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.nav-link-custom:hover, .nav-link-custom.active {
    background: rgba(27, 94, 32, 0.05);
    color: var(--moe-green);
    border-left-color: var(--moe-green);
}

.nav-link-custom:hover i, .nav-link-custom.active i {
    color: var(--moe-green);
}

.admin-main {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.admin-topbar {
    height: 70px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    position: sticky;
    top: 0;
    z-index: 999;
}

.btn-user {
    display: flex;
    align-items: center;
    background: transparent;
    border: 1px solid var(--glass-border);
    padding: 5px 15px 5px 5px;
    border-radius: 50px;
}

.user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--moe-green-light);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
}

.admin-content {
    padding: 30px;
    flex: 1;
}

/* --- Dashboard Stats --- */
.stat-card {
    border-radius: 20px;
    padding: 25px;
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.stat-card::after {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 150px; height: 150px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
}

.gradient-green { background: linear-gradient(135deg, #2E7D32, #1B5E20); }
.gradient-gold { background: linear-gradient(135deg, #FBC02D, #F9A825); }
.gradient-blue { background: linear-gradient(135deg, #1976D2, #0D47A1); }
.gradient-purple { background: linear-gradient(135deg, #7B1FA2, #4A148C); }

.stat-icon {
    position: absolute;
    right: 20px;
    bottom: 10px;
    font-size: 80px;
    opacity: 0.2;
    transform: rotate(-15deg);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
    line-height: 1;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* --- Loader --- */
.loading-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading-spinner {
    text-align: center;
}

/* --- Responsive --- */
@media (max-width: 991.98px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }
    .admin-sidebar.show {
        transform: translateX(0);
    }
    .admin-main {
        margin-left: 0;
    }
    .sidebar-overlay.show {
        display: block;
    }
}

@media (max-width: 768px) {
    .glass-card { padding: 1.5rem; }
    .hero-title { font-size: 2rem; }
}

@media print {
    .print-no-shadow { box-shadow: none !important; border: 1px solid #ddd; }
    .btn, .navbar-custom, .sidebar-nav { display: none !important; }
    body { background: #fff; }
}