/* ===== ROVE Survey System - Sunset Gradient Aesthetic ===== */

:root {
    /* Sunset Gradient Palette */
    --coral: #FF6B6B;
    --coral-light: #FF8787;
    --magenta: #C44DFF;
    --magenta-deep: #9B2FD8;
    --purple: #7B2CBF;
    --purple-deep: #5A189A;
    --indigo: #3A0CA3;
    --dark-bg: #0D0221;
    --darker-bg: #050010;
    
    /* Glass Effect Colors */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    
    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* Accent Colors */
    --accent-success: #00D9A5;
    --accent-warning: #FFB84D;
    --accent-danger: #FF5757;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 50px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', 'Noto Sans Thai', sans-serif;
    background: var(--darker-bg);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Thai language specific */
html[lang="th"] body {
    font-family: 'Noto Sans Thai', 'Outfit', sans-serif;
}

/* ===== Background Effects ===== */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--magenta), var(--purple));
    bottom: -150px;
    left: -100px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--purple), var(--indigo));
    top: 40%;
    left: 40%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 40px) scale(0.95); }
    75% { transform: translate(-40px, -20px) scale(1.02); }
}

/* ===== Navigation ===== */
.nav-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(13, 2, 33, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.logo-text {
    font-family: 'Syne', sans-serif;
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--coral), var(--magenta), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.logo-tag {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
    background: var(--glass-bg);
}

/* ===== Container ===== */
.container {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* ===== Glass Card ===== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

/* ===== Survey Selection ===== */
.survey-selection {
    text-align: center;
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    font-family: 'Syne', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

.survey-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.survey-option-btn {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(196, 77, 255, 0.1));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    cursor: pointer;
    text-align: left;
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.survey-option-btn:hover {
    transform: translateY(-4px);
    border-color: var(--coral);
    box-shadow: 0 12px 40px rgba(255, 107, 107, 0.2);
}

.survey-option-btn .option-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.survey-option-btn h3 {
    font-family: 'Syne', sans-serif;
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
}

.survey-option-btn p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.survey-option-btn .time-estimate {
    display: inline-block;
    background: var(--glass-bg);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--coral);
}

/* ===== Progress Bar ===== */
.progress-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: var(--glass-bg);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--coral), var(--magenta), var(--purple));
    border-radius: var(--radius-full);
    transition: width 0.5s ease;
    width: 16.67%;
}

.progress-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
}

/* ===== Form Parts ===== */
.form-part {
    display: none;
    animation: fadeInUp 0.4s ease;
}

.form-part.active {
    display: block;
}

.part-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
}

.part-number {
    display: inline-block;
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.part-header h2 {
    font-family: 'Syne', sans-serif;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.part-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== Question Groups ===== */
.question-group {
    margin-bottom: var(--spacing-lg);
}

.question-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.q-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ===== Input Styles ===== */
.text-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
    resize: vertical;
}

.text-input:focus {
    outline: none;
    border-color: var(--coral);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.2);
}

.text-input::placeholder {
    color: var(--text-muted);
}

.inline-input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    margin-left: var(--spacing-xs);
    width: 150px;
    transition: all 0.3s ease;
}

.inline-input:focus {
    outline: none;
    border-color: var(--coral);
}

.multi-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ===== Radio & Checkbox Styles ===== */
.radio-group,
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.radio-group.horizontal {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.radio-item,
.checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
}

.radio-item:hover,
.checkbox-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--glass-border);
}

.radio-item input,
.checkbox-item input {
    display: none;
}

.radio-custom,
.checkbox-custom {
    width: 22px;
    height: 22px;
    border: 2px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.checkbox-custom {
    border-radius: 6px;
}

.radio-item input:checked + .radio-custom,
.checkbox-item input:checked + .checkbox-custom {
    border-color: var(--coral);
    background: linear-gradient(135deg, var(--coral), var(--magenta));
}

.radio-custom::after,
.checkbox-custom::after {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--text-primary);
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.2s ease;
}

.checkbox-custom::after {
    content: '✓';
    background: none;
    font-size: 14px;
    color: white;
    border-radius: 0;
}

.radio-item input:checked + .radio-custom::after,
.checkbox-item input:checked + .checkbox-custom::after {
    transform: scale(1);
}

.other-option {
    flex-wrap: wrap;
}

/* ===== Energy Cards ===== */
.energy-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.energy-card {
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-md);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.energy-card .energy-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.energy-card strong {
    display: block;
    margin-bottom: var(--spacing-xs);
}

.energy-card span:last-child {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Selected state for energy cards */
.energy-card:has(input:checked),
.energy-card.selected {
    border-color: var(--coral);
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.15), rgba(196, 77, 255, 0.15));
    box-shadow: 0 0 20px rgba(255, 107, 107, 0.3);
}

.energy-card input:checked ~ strong,
.energy-card input:checked ~ span:last-child {
    color: var(--text-primary);
}

/* ===== Experience Cards ===== */
.experience-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-sm);
}

.experience-card {
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-md);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.experience-card .exp-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.experience-card strong {
    display: block;
    margin-bottom: var(--spacing-xs);
}

.experience-card span:last-child {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Selected state for experience cards */
.experience-card:has(input:checked),
.experience-card.selected {
    border-color: var(--coral);
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.15), rgba(196, 77, 255, 0.15));
    box-shadow: 0 0 20px rgba(255, 107, 107, 0.3);
}

.experience-card input:checked ~ strong,
.experience-card input:checked ~ span:last-child {
    color: var(--text-primary);
}

/* ===== Icon Grid ===== */
.icon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.icon-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.item-icon {
    font-size: 1.5rem;
}

/* ===== Ranking Container ===== */
.ranking-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    cursor: grab;
    transition: all 0.3s ease;
}

.ranking-item:active {
    cursor: grabbing;
}

.ranking-item.dragging {
    opacity: 0.5;
    transform: scale(1.02);
    background: rgba(255, 107, 107, 0.1);
    border-color: var(--coral);
}

.ranking-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.rank-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    border-radius: 50%;
    font-weight: 600;
    flex-shrink: 0;
}

.rank-content {
    flex: 1;
}

.rank-content strong {
    display: block;
    margin-bottom: 2px;
}

.rank-content span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.drag-handle {
    color: var(--text-muted);
    font-size: 1.2rem;
    letter-spacing: -3px;
    user-select: none;
}

/* ===== Form Navigation ===== */
.form-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-full);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-primary {
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    color: white;
    box-shadow: 0 4px 20px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 107, 107, 0.4);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
}

.btn-submit {
    background: linear-gradient(135deg, var(--accent-success), #00B894);
    box-shadow: 0 4px 20px rgba(0, 217, 165, 0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 217, 165, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, var(--accent-danger), #E53E3E);
    color: white;
    box-shadow: 0 4px 20px rgba(255, 87, 87, 0.3);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 87, 87, 0.4);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ===== Success Card ===== */
.success-card {
    text-align: center;
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.6s ease;
}

.success-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    animation: bounce 1s ease infinite;
}

.success-card h2 {
    font-family: 'Syne', sans-serif;
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--accent-success), #00B894);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.success-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* ===== Admin Styles ===== */
.admin-container {
    max-width: 1200px;
}

.admin-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: 'Syne', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Tab Container ===== */
.tab-container {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-xs);
    background: var(--glass-bg);
    border-radius: var(--radius-full);
    width: fit-content;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    color: white;
}

.tab-icon {
    font-size: 1.1rem;
}

/* ===== Responses Section ===== */
.responses-section {
    position: relative;
}

.responses-tab {
    display: none;
}

.responses-tab.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.responses-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.responses-header h2 {
    font-family: 'Syne', sans-serif;
    font-size: 1.3rem;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.responses-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.response-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all 0.3s ease;
}

.response-card:hover {
    transform: translateY(-2px);
    border-color: var(--coral);
    box-shadow: 0 8px 30px rgba(255, 107, 107, 0.15);
}

.response-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.response-id {
    font-family: 'Syne', sans-serif;
    font-weight: 600;
    color: var(--coral);
}

.response-date {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.response-preview {
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    max-width: 700px;
    width: 100%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modalSlideIn 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: var(--spacing-md);
}

.modal-header h3 {
    font-family: 'Syne', sans-serif;
    font-size: 1.3rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--coral);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding-right: var(--spacing-sm);
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--glass-bg);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 3px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--glass-border);
    margin-top: var(--spacing-md);
}

.response-detail-item {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.response-detail-item:last-child {
    border-bottom: none;
}

.response-detail-label {
    font-weight: 600;
    color: var(--coral);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}

.response-detail-value {
    color: var(--text-primary);
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: var(--spacing-xl);
}

/* ===== Utilities ===== */
.hidden {
    display: none !important;
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .survey-options {
        grid-template-columns: 1fr;
    }
    
    .form-navigation {
        flex-wrap: wrap;
    }
    
    .btn {
        flex: 1;
        justify-content: center;
    }
    
    .energy-cards,
    .experience-cards {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .tab-container {
        width: 100%;
    }
    
    .tab-btn {
        flex: 1;
        justify-content: center;
    }
    
    .responses-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        width: 100%;
    }
    
    .header-actions .btn {
        flex: 1;
    }
}

@media (max-width: 480px) {
    .nav-bar {
        padding: var(--spacing-sm);
    }
    
    .logo-text {
        font-size: 1.5rem;
    }
    
    .nav-links a {
        font-size: 0.9rem;
        padding: var(--spacing-xs);
    }
    
    .glass-card {
        padding: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
}

/* ===== Login Styles ===== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.login-card {
    width: 100%;
    max-width: 420px;
    animation: fadeInUp 0.6s ease;
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.login-header .logo {
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.login-header h2 {
    font-family: 'Syne', sans-serif;
    font-size: 1.8rem;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-header p {
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-secondary);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-icon {
    margin-left: var(--spacing-xs);
    transition: transform 0.3s ease;
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
}

.error-message {
    background: rgba(255, 87, 87, 0.15);
    border: 1px solid rgba(255, 87, 87, 0.3);
    color: var(--accent-danger);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    text-align: center;
    font-size: 0.9rem;
}

.login-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--glass-border);
}

.login-footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.login-footer a:hover {
    color: var(--coral);
}

.loading-spinner {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* ===== Language Switcher ===== */
.lang-switcher {
    display: flex;
    gap: 4px;
    background: var(--glass-bg);
    padding: 4px;
    border-radius: var(--radius-full);
    border: 1px solid var(--glass-border);
}

.lang-btn {
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.lang-btn:hover {
    color: var(--text-primary);
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--coral), var(--magenta));
    color: white;
}

.lang-flag {
    font-size: 1rem;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .lang-switcher {
        padding: 2px;
    }
    
    .lang-btn {
        padding: 4px 8px;
        font-size: 0.8rem;
    }
    
    .lang-btn span:not(.lang-flag) {
        display: none;
    }
}