/* 
 * aihugedb Premium Brand Stylesheet
 * Refactored to match new high-end fitness brand design
 */

:root {
    --primary-color: #00D4FF; /* Electric Blue */
    --primary-glow: 0 0 25px rgba(0, 212, 255, 0.7);
    --secondary-color: #00FF9F; /* Vitality Green */
    --secondary-glow: 0 0 25px rgba(0, 255, 159, 0.7);
    --accent-color: #FF3D00; /* Neon Orange/Red */
    --dark-bg: #020202; /* Ultra Black */
    --dark-card: #0A0A0A; /* Card Black */
    --text-main: #FFFFFF;
    --text-muted: #888888;
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-blur: blur(20px);
    --neon-border: 1px solid rgba(0, 212, 255, 0.3);
}

/* Global Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Space Grotesk', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

/* Hero Section */
.hero-full {
    position: relative;
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: #000;
}

.hero-video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, var(--dark-bg) 80%),
                linear-gradient(to bottom, transparent 60%, var(--dark-bg) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 1200px;
    padding: 0 2rem;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-brand {
    margin-bottom: 30px;
}

.brand-name {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    letter-spacing: 2px;
    margin: 0;
}

.brand-tagline {
    font-size: 0.8rem;
    letter-spacing: 3px;
    color: var(--primary-color);
    opacity: 0.9;
}

.hero-headline-group {
    margin-bottom: 2rem;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    line-height: 1.1;
    margin-bottom: 0.5rem;
    font-weight: 900;
}

.hero-subtitle-cn {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 400;
    margin-top: -10px;
}

.hero-values {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}


.value-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.value-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* Section General */
.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title .sub-title {
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 400;
    margin-left: 10px;
}

.py-5 { padding: 5rem 0; }

/* Product Line Section */
.product-card {
    background: var(--dark-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.ai-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--primary-color);
    color: #000;
    padding: 8px 15px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: bold;
    z-index: 10;
}

.case-study {
    background: var(--dark-card);
    padding: 2rem;
    border: 1px solid var(--glass-border);
}

.dashboard-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
}
.product-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.product-info {
    padding: 2rem;
}

.product-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.product-info h5 {
    color: var(--primary-color);
    font-size: 1rem;
    text-transform: uppercase;
}

/* Brand Identity */
.brand-desc {
    font-size: 1.25rem;
    color: #555;
}

.logo-concept {
    font-size: 2rem;
    font-weight: 700;
}

.concept-part { color: #888; }
.concept-result { color: var(--primary-color); }

/* Logo Variations */
.var-box {
    border-radius: 16px;
    font-weight: 900;
    letter-spacing: 3px;
    padding: 3rem 2rem;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.1);
}



/* Typography & Color */
.font-sample {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.font-details {
    font-size: 0.9rem;
    color: #888;
}

.color-swatch {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 4px solid #fff;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* Animations */
.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

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

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}


/* Responsive */
@media (max-width: 768px) {
    .hero-title { font-size: 3rem; }
    .hero-values { gap: 1rem; }
}

/* App page styles */
.app-header {
    background: rgba(17, 17, 17, 0.95);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 50;
}
.app-header .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.app-header .site-title a {
    color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 1px;
}
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
    margin: 0;
    padding: 0;
}
.main-nav .nav-link {
    color: #ddd;
    text-decoration: none;
    transition: color 0.3s ease;
}
.main-nav .nav-link:hover {
    color: var(--primary-color);
}.navbar {
    padding: 1rem 0;
}
.navbar .navbar-brand {
    font-weight: 700;
    letter-spacing: 1px;
    color: #fff;
}
.navbar .navbar-brand:hover {
    color: #fff;
}
.navbar .nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin: 0;
    padding: 0;
}
.navbar .nav-links li {
    list-style: none;
}
.navbar .nav-links a {
    color: #ddd;
    text-decoration: none;
    transition: color 0.25s ease, border-color 0.25s ease;
    padding-bottom: 2px;
}
.navbar .nav-links a:hover {
    color: var(--primary-color);
}
.navbar .nav-links a.active,
.navbar .nav-links a:focus {
    color: var(--primary-color);
    font-weight: 700;
    border-bottom: 2px solid var(--primary-color);
}
.hero-section {
    min-height: calc(100vh - 100px);
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, #121212 0%, #1f1f1f 100%);
    color: #f7f7f7;
}
.hero-content {
    width: 100%;
}
.welcome-card {
    max-width: 920px;
    margin: 0 auto;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}
.welcome-icon {
    width: 80px;
    height: 80px;
    display: grid;
    place-items: center;
    background: rgba(126, 211, 33, 0.12);
    border-radius: 22px;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}
.hero-title {
    color: #fff;
    margin-bottom: 1rem;
}
.hero-subtitle {
    color: #d1d1d1;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.5rem;
}
.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}
.features-preview {
    display: grid;
    grid-template-columns: repeat(3, minmax(180px, 1fr));
    gap: 1rem;
}
.feature-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 1.5rem;
    text-align: center;
}
.feature-item h3 {
    margin: 1rem 0 0.5rem;
    font-size: 1.1rem;
    color: #fff;
}
.feature-item p {
    color: #ccc;
    margin-bottom: 0;
}
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    z-index: 100;
}
.modal-overlay.active {
    display: flex;
}
.modal-content {
    width: 100%;
    max-width: 520px;
    background: #111;
    border-radius: 28px;
    padding: 2rem;
    box-shadow: 0 35px 90px rgba(0, 0, 0, 0.45);
    position: relative;
    color: #f5f5f5;
}
.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
}
.modal-title {
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}
.login-form-container,
.signup-form-container {
    display: grid;
    gap: 1rem;
}
.form-group label {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: #ddd;
}
.form-group input {
    width: 100%;
    padding: 0.95rem 1rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}
.form-group input::placeholder {
    color: #bbb;
}
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #ccc;
    cursor: pointer;
}
.checkbox-input {
    width: 18px;
    height: 18px;
}
.forgot-password,
.signup-prompt a,
.login-prompt a {
    color: var(--primary-color);
    text-decoration: none;
}
.btn-block {
    width: 100%;
}
.app-footer {
    background: #0d0d0d;
    color: #c8c8c8;
    padding: 2.5rem 1rem 1rem;
}
.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: space-between;
}
.footer-brand h3 {
    margin-bottom: 0.5rem;
}
.footer-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 1rem;
}
.footer-nav a,
.footer-social a {
    color: #c8c8c8;
    text-decoration: none;
}
.footer-social {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.social-link {
    font-size: 1.2rem;
}
.copyright {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}
@media (max-width: 992px) {
    .hero-section { min-height: auto; padding: 3rem 0; }
    .features-preview { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; align-items: center; text-align: center; }
    .navbar .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    .navbar .nav-links a {
        display: inline-block;
        padding: 0.5rem 0.75rem;
    }
    .navbar .nav-links a.active {
        border-bottom-width: 2px;
        border-bottom-style: solid;
        border-bottom-color: var(--primary-color);
        color: var(--primary-color);
    }
}