/* ============================================
   BIDREAM HK - Premium Luxury Shopping Platform
   Dark Gold Theme with Compliance Updates
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Dark Gold Luxury Theme */
    --gold-primary: #D4AF37;
    --gold-light: #FFD700;
    --gold-dark: #B8941E;
    --navy-dark: #0A0E1A;
    --navy-medium: #0D1B2A;
    --navy-light: #1B2838;
    --white: #FFFFFF;
    --gray-light: #E5E5E5;
    --gray-medium: #999999;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition-smooth: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--navy-dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    z-index: 1000;
    transition: var(--transition-smooth);
}

#header.scrolled {
    background: rgba(10, 14, 26, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

/* Logo - BIDREAM HK Inline */
.logo a {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 600;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    letter-spacing: 2px;
    transition: var(--transition-smooth);
    white-space: nowrap;
}

.logo a:hover {
    filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.8));
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-primary);
    transition: var(--transition-smooth);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* Navigation Right Side */
.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(10, 14, 26, 0.8);
    padding: 8px 16px;
    border-radius: 25px;
    border: 1px solid rgba(212, 175, 55, 0.4);
}

.lang-btn {
    background: none;
    border: none;
    color: #808080;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    padding: 0;
    opacity: 0.6;
}

.lang-btn.active {
    color: #FFD700;
    font-weight: 600;
    opacity: 1;
}

.lang-btn:hover {
    color: #FFD700;
    opacity: 0.8;
}

.lang-divider {
    color: rgba(212, 175, 55, 0.4);
    font-weight: 300;
}

/* Download Button */
.btn-download {
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
    color: var(--navy-dark);
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
}

.btn-download-hero {
    display: inline-block;
    background: transparent;
    color: var(--white);
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    transition: var(--transition-smooth);
    border: 2px solid var(--gold-primary);
    visibility: visible;
    opacity: 1;
}

.btn-download-hero:hover {
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
    color: var(--navy-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.6);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--gold-primary);
    font-size: 24px;
    cursor: pointer;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 14, 26, 0.85), rgba(13, 27, 42, 0.75));
    z-index: 2;
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 4;
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 64px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 30px;
    background: linear-gradient(135deg, var(--white), var(--gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.hero-subtitle {
    font-size: 24px;
    line-height: 1.6;
    margin-bottom: 20px;
    color: var(--gray-light);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.hero-message {
    font-size: 18px;
    color: var(--gold-primary);
    margin-bottom: 40px;
    font-weight: 500;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

.btn-hero {
    display: inline-block;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
    color: var(--navy-dark);
    padding: 18px 50px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    transition: var(--transition-smooth);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(212, 175, 55, 0.6);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    color: var(--gold-primary);
    font-size: 32px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ============================================
   SECTION COMMON STYLES
   ============================================ */

.section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 700;
    color: var(--gold-primary);
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 20px;
    color: var(--gray-light);
}

/* ============================================
   ABOUT US SECTION
   ============================================ */

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--gray-light);
    margin-bottom: 40px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(212, 175, 55, 0.1);
    border-radius: 15px;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 700;
    color: var(--gold-primary);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 14px;
    color: var(--gray-light);
}

.about-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-smooth);
}

.about-image:hover img {
    transform: scale(1.05);
}

/* ============================================
   SERVICES SECTION
   ============================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.service-card {
    position: relative;
    background: var(--navy-medium);
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid rgba(212, 175, 55, 0.2);
    transition: var(--transition-smooth);
    min-height: 450px;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(212, 175, 55, 0.4);
    border-color: var(--gold-primary);
}

.service-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 1;
    transition: var(--transition-smooth);
}

.service-card:hover .service-bg {
    transform: scale(1.1);
}

.service-content {
    position: relative;
    z-index: 2;
    padding: 40px;
    background: linear-gradient(to bottom, rgba(10, 14, 26, 0.7), rgba(10, 14, 26, 0.95));
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.service-icon {
    font-size: 48px;
    color: var(--gold-primary);
    margin-bottom: 20px;
    transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
    filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.8));
}

.service-content h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    color: var(--gold-primary);
    margin-bottom: 15px;
}

.service-content p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-light);
}

/* ============================================
   PARTNERSHIP SECTION
   ============================================ */

.partnership {
    background: var(--navy-medium);
}

.partnership-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--gold-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 10px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 16px;
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold-primary);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.btn-submit {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
    color: var(--navy-dark);
    border: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(212, 175, 55, 0.6);
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    display: none;
}

.form-message.success {
    background: rgba(76, 175, 80, 0.2);
    border: 1px solid #4CAF50;
    color: #4CAF50;
    display: block;
}

.form-message.error {
    background: rgba(244, 67, 54, 0.2);
    border: 1px solid #F44336;
    color: #F44336;
    display: block;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--navy-medium);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 32px;
    color: var(--gold-primary);
    margin-bottom: 20px;
}

.footer-text {
    color: var(--gray-light);
    margin-bottom: 10px;
    line-height: 1.8;
}

.footer-text a {
    color: var(--gold-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-text a:hover {
    color: var(--gold-light);
}

.footer-section h4 {
    color: var(--gold-primary);
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--gold-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(212, 175, 55, 0.1);
}

.disclaimer {
    color: var(--gray-light);
    font-size: 14px;
    margin-bottom: 15px;
    line-height: 1.6;
}

.copyright {
    color: var(--gray-medium);
    font-size: 14px;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    /* Header */
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10, 14, 26, 0.98);
        flex-direction: column;
        padding: 20px;
        gap: 20px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .logo a {
        font-size: 24px;
    }
    
    /* Hero */
    .hero {
        min-height: 100vh;
        padding-top: 120px;
    }
    
    /* Hide header Download button on mobile */
    .btn-download {
        display: none !important;
    }
    
    /* Show hero Download button on mobile */
    .btn-download-hero {
        display: inline-block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .hero-content {
        padding: 0 15px;
        max-width: 100%;
    }
    
    .hero-title {
        font-size: 32px;
        line-height: 1.4;
        margin-bottom: 20px;
        word-break: keep-all;
        padding-top: 20px;
    }
    
    .hero-subtitle {
        font-size: 16px;
        line-height: 1.5;
        margin-bottom: 15px;
    }
    
    .hero-message {
        font-size: 14px;
        margin-bottom: 30px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        margin-top: 30px;
    }
    
    .btn-hero {
        padding: 14px 35px;
        font-size: 16px;
        width: 100%;
        max-width: 280px;
    }
    
    .btn-download-hero {
        padding: 14px 35px;
        font-size: 16px;
        width: 100%;
        max-width: 280px;
    }
    
    /* Sections */
    .section-title {
        font-size: 36px;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* Extra Small Mobile Devices (iPhone SE, etc.) */
@media (max-width: 480px) {
    .hero {
        min-height: 100vh;
        padding-top: 100px;
    }
    
    .hero-content {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 26px;
        line-height: 1.4;
        margin-bottom: 15px;
        padding-top: 30px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        line-height: 1.5;
        margin-bottom: 12px;
    }
    
    .hero-message {
        font-size: 13px;
        margin-bottom: 25px;
    }
    
    .hero-buttons {
        gap: 12px;
        margin-top: 25px;
    }
    
    .btn-hero {
        padding: 12px 30px;
        font-size: 15px;
        width: calc(100% - 40px);
        max-width: 260px;
    }
    
    .btn-download-hero {
        padding: 12px 30px;
        font-size: 15px;
        width: calc(100% - 40px);
        max-width: 260px;
    }
    
    .logo a {
        font-size: 20px;
    }
    
    .language-switcher {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .lang-btn {
        font-size: 12px;
    }
    
    .btn-download {
        padding: 10px 20px;
        font-size: 12px;
    }
}

/* Very Small Devices (320px) */
@media (max-width: 375px) {
    .hero-content {
        padding: 0 10px;
    }
    
    .hero-title {
        font-size: 22px;
        line-height: 1.25;
    }
    
    .hero-subtitle {
        font-size: 13px;
    }
    
    .hero-message {
        font-size: 12px;
    }
    
    .btn-hero {
        font-size: 14px;
        padding: 11px 25px;
    }
    
    .btn-download-hero {
        font-size: 14px;
        padding: 11px 25px;
    }
    
    .hero-title {
        font-size: 22px;
        line-height: 1.35;
        padding-top: 40px;
    }
    
    .logo a {
        font-size: 18px;
    }
}

/* Desktop - Show header Download button, hide hero Download button */
@media (min-width: 769px) {
    .btn-download {
        display: inline-block !important;
    }
    
    .btn-download-hero {
        display: none !important;
    }
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}