/* ========================================
   CSS Variables
======================================== */
:root {
    --primary: #00ff88;
    --secondary: #ff6b35;
    --bg-dark: #0a0a0a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #16213e;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --gradient: linear-gradient(135deg, #00ff88, #00b4d8);
    --danger: #ff4757;
    --success: #2ed573;
    --warning: #ffa502;
    --glass-bg: rgba(26, 26, 46, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --nav-height: 70px;
}

/* ========================================
   Keyframe Animations
======================================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

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

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

@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

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

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px var(--primary), 0 0 10px var(--primary); }
    50% { box-shadow: 0 0 20px var(--primary), 0 0 40px var(--primary); }
}

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

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

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

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

@keyframes progressBar {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 0%; }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: var(--primary);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary);
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

/* ========================================
   Navigation
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: transform 0.3s ease;
}

.nav-logo:hover {
    transform: scale(1.05);
    color: var(--primary);
}

.nav-logo i {
    color: var(--primary);
    font-size: 1.8rem;
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(0, 255, 136, 0.1);
}

.nav-link-register {
    background: var(--gradient);
    color: var(--bg-dark) !important;
    font-weight: 600;
}

.nav-link-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 255, 136, 0.3);
}

.nav-link-logout {
    color: var(--danger);
}

.nav-link-logout:hover {
    background: rgba(255, 71, 87, 0.1);
    color: var(--danger);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ========================================
   Main Content
======================================== */
.main-content {
    padding-top: var(--nav-height);
    min-height: calc(100vh - 300px);
}

/* ========================================
   Hero Section
======================================== */
.hero {
    min-height: calc(100vh - var(--nav-height));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 25%, #16213e 50%, #1a1a2e 75%, #0a0a0a 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 255, 136, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(255, 107, 53, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    animation: fadeInUp 1s ease;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   Buttons
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--bg-dark);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
    color: var(--bg-dark);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-3px);
}

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

.btn-danger:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 71, 87, 0.3);
    color: var(--text-primary);
}

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

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(46, 213, 115, 0.3);
    color: var(--bg-dark);
}

/* ========================================
   Feature Cards
======================================== */
.features-section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2.5rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 255, 136, 0.2);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: rgba(0, 255, 136, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--primary);
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    background: var(--gradient);
    color: var(--bg-dark);
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========================================
   How It Works Section
======================================== */
.how-it-works {
    padding: 5rem 2rem;
    background: var(--bg-card);
}

.steps-container {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.step-card {
    text-align: center;
    padding: 2rem;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--bg-dark);
    margin: 0 auto 1.5rem;
}

.step-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}

.step-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   Forms
======================================== */
.form-container {
    max-width: 480px;
    margin: 2rem auto;
    padding: 2rem;
}

.form-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 3rem;
    animation: fadeInUp 0.6s ease;
    position: relative;
    overflow: hidden;
}

.form-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
}

.form-card h2 {
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 2rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-card .form-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.9rem 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
    background: rgba(255, 255, 255, 0.08);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-control:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 255, 136, 0.2);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
    background: rgba(255, 255, 255, 0.1);
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.form-radio-group {
    display: flex;
    gap: 2rem;
    padding: 0.5rem 0;
}

.form-radio-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

.form-radio-group input[type="radio"] {
    width: auto;
    accent-color: var(--primary);
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.form-checkbox input[type="checkbox"] {
    width: auto;
    margin-top: 0.2rem;
    accent-color: var(--primary);
}

.form-checkbox label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.form-btn {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 10px;
    background: var(--gradient);
    color: var(--bg-dark);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.form-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
}

.form-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-footer a {
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   Alerts
======================================== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: fadeInDown 0.4s ease;
}

.alert-success {
    background: rgba(46, 213, 115, 0.1);
    border: 1px solid rgba(46, 213, 115, 0.3);
    color: var(--success);
}

.alert-error {
    background: rgba(255, 71, 87, 0.1);
    border: 1px solid rgba(255, 71, 87, 0.3);
    color: var(--danger);
    animation: shake 0.5s ease;
}

.alert-warning {
    background: rgba(255, 165, 2, 0.1);
    border: 1px solid rgba(255, 165, 2, 0.3);
    color: var(--warning);
}

/* ========================================
   Stat Cards
======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 255, 136, 0.3);
}

.stat-card:hover::after {
    opacity: 1;
}

.stat-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.8rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: countUp 0.8s ease;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

/* ========================================
   Tables
======================================== */
.table-container {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    margin-bottom: 2rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td,
.table th,
.table td {
    padding: 1rem 1.2rem;
    text-align: left;
}

.data-table th,
.table th {
    background: var(--bg-card);
    color: var(--primary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--glass-border);
}

.data-table td,
.table td {
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.data-table tr:nth-child(even),
.table tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

.data-table tr:hover,
.table tr:hover {
    background: rgba(0, 255, 136, 0.03);
}

/* ========================================
   Charts
======================================== */
.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.chart-container canvas {
    max-height: 400px;
}

/* ========================================
   Promotion Popup
======================================== */
.promo-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInUp 0.5s ease;
}

.promo-overlay.hidden {
    display: none;
}

.promo-modal {
    max-width: 600px;
    width: 90%;
    border-radius: 20px;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    animation: scaleIn 0.5s ease;
}

.promo-content {
    width: 100%;
}

.promo-image {
    width: 100%;
    display: block;
}

.promo-video {
    width: 100%;
    display: block;
}

.promo-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.5);
}

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

.promo-skip-btn {
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    background: transparent;
    color: var(--text-secondary);
    cursor: not-allowed;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.promo-skip-btn:not(:disabled) {
    cursor: pointer;
    border-color: var(--primary);
    color: var(--primary);
}

.promo-skip-btn:not(:disabled):hover {
    background: var(--primary);
    color: var(--bg-dark);
}

/* ========================================
   Profile Section
======================================== */
.profile-section {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.profile-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 3rem;
    animation: fadeInUp 0.6s ease;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--glass-border);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--bg-dark);
    font-weight: 700;
}

.profile-info h2 {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.profile-info p {
    color: var(--text-secondary);
}

/* ========================================
   Admin Cards & Panels
======================================== */
.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.admin-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.admin-card:hover {
    border-color: rgba(0, 255, 136, 0.3);
    transform: translateY(-3px);
}

.admin-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.admin-panel {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.admin-panel h2 {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
    color: var(--primary);
}

/* ========================================
   Footer
======================================== */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--glass-border);
    padding: 4rem 2rem 2rem;
    margin-top: 4rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-brand h3 i {
    color: var(--primary);
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer-links h4,
.footer-social h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links ul li a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.footer-links ul li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   Scroll Reveal
======================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Maintenance Page
======================================== */
.maintenance-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-dark);
}

.maintenance-container {
    text-align: center;
    padding: 3rem;
    max-width: 500px;
    animation: fadeInUp 0.8s ease;
}

.maintenance-icon {
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
}

.maintenance-title {
    font-size: 2rem;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.maintenance-animation {
    font-size: 3rem;
    color: var(--secondary);
    margin: 2rem 0;
    animation: spin 3s linear infinite;
}

.maintenance-message {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.maintenance-progress {
    width: 200px;
    height: 4px;
    background: var(--glass-border);
    border-radius: 4px;
    margin: 0 auto;
    overflow: hidden;
}

.maintenance-progress-bar {
    height: 100%;
    background: var(--gradient);
    border-radius: 4px;
    animation: progressBar 2s ease-in-out infinite;
}

/* ========================================
   Loading Spinner
======================================== */
.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--glass-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ========================================
   Page Container
======================================== */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.page-header h1 {
    font-size: 2rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Content Pages (Terms, Privacy)
======================================== */
.content-page {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.content-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 3rem;
    animation: fadeInUp 0.6s ease;
}

.content-card h1 {
    font-size: 2rem;
    margin-bottom: 2rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.content-card h2 {
    font-size: 1.3rem;
    color: var(--primary);
    margin: 2rem 0 1rem;
}

.content-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.content-card ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.content-card ul li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

/* ========================================
   Workout Form Styles
======================================== */
.workout-sets-container {
    margin-bottom: 1.5rem;
}

.set-row {
    display: grid;
    grid-template-columns: auto 1fr 1fr auto;
    gap: 1rem;
    align-items: center;
    margin-bottom: 0.8rem;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    animation: fadeInLeft 0.3s ease;
}

.set-row .set-label {
    color: var(--primary);
    font-weight: 600;
    min-width: 50px;
}

.set-row input {
    padding: 0.6rem 0.8rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.set-row input:focus {
    border-color: var(--primary);
}

.remove-set-btn {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.3rem;
    transition: transform 0.3s ease;
}

.remove-set-btn:hover {
    transform: scale(1.2);
}

.add-set-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border: 1px dashed var(--primary);
    border-radius: 8px;
    background: transparent;
    color: var(--primary);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.add-set-btn:hover {
    background: rgba(0, 255, 136, 0.1);
}

.bodyweight-label {
    color: var(--warning);
    font-size: 0.8rem;
    font-style: italic;
}

/* ========================================
   Workout Detail Cards
======================================== */
.workout-detail-section-heading {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--glass-border);
}

.workout-detail-section-heading i {
    font-size: 1.2rem;
}

.workout-detail-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-left: 4px solid var(--primary);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.workout-detail-card:hover {
    border-color: rgba(0, 255, 136, 0.4);
    box-shadow: 0 4px 20px rgba(0, 255, 136, 0.05);
}

.workout-detail-card .exercise-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.workout-detail-card .set-list {
    padding: 0.5rem 0;
    margin-bottom: 0.8rem;
}

.workout-detail-card .set-item {
    padding: 0.4rem 0 0.4rem 1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    position: relative;
}

.workout-detail-card .set-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0.6;
}

.workout-detail-card .exercise-total {
    padding-top: 0.8rem;
    border-top: 1px solid var(--glass-border);
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.grand-total-card {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 180, 216, 0.1));
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 12px;
    padding: 1.2rem 1.5rem;
    margin-top: 1.2rem;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ========================================
   Admin Panel Menu
======================================== */
.admin-menu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.admin-menu-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2.5rem 2rem;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card-hover) 100%);
    border: 2px solid var(--glass-border);
    border-radius: 16px;
    text-decoration: none;
    color: inherit;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.admin-menu-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.admin-menu-card:hover {
    border-color: var(--primary);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 255, 136, 0.2);
}

.admin-menu-card:hover::before {
    opacity: 1;
}

.admin-menu-card:hover .admin-menu-icon {
    transform: scale(1.15) rotate(5deg);
    color: var(--secondary);
}

.admin-menu-icon {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
    transition: all 0.4s ease;
}

.admin-menu-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.admin-menu-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.admin-header {
    text-align: center;
    margin-bottom: 2rem;
}

.admin-header h1 {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.admin-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.admin-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.admin-card:hover {
    border-color: rgba(0, 255, 136, 0.3);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.1);
}

.admin-card h2 {
    color: var(--primary);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--glass-border);
}

.admin-nav {
    display: flex;
    gap: 0.5rem;
    margin: 1.5rem 0;
    flex-wrap: wrap;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--glass-border);
}

.admin-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.admin-nav-link:hover {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.admin-nav-link.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--bg-dark);
    font-weight: 600;
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: var(--bg-card);
        flex-direction: column;
        padding: 2rem;
        gap: 0.5rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s ease;
        border-bottom: 1px solid var(--glass-border);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        padding: 0.8rem 1rem;
        width: 100%;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .steps-container {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .form-card {
        padding: 2rem 1.5rem;
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .set-row {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
    }

    .set-row .set-label {
        grid-column: 1 / -1;
    }

    .admin-menu-grid {
        grid-template-columns: 1fr;
    }

    .admin-panel {
        padding: 1.5rem;
    }

    .dashboard-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .form-card {
        padding: 1.5rem 1rem;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .admin-grid {
        grid-template-columns: 1fr;
    }

    .container,
    .page-container {
        padding: 1rem;
    }

    .admin-nav {
        flex-direction: column;
    }

    .admin-nav-link {
        width: 100%;
        justify-content: flex-start;
    }
}