/* ========================================
   JLS Pro Limited - Main Stylesheet
   Professional · Proactive · Production
   Redesigned: Tech-forward, Dynamic, Premium AV
   ======================================== */

/* CSS Variables */
:root {
    --primary-black: #0a0a0a;
    --secondary-black: #1a1a2e;
    --dark-bg: #0f0f1a;
    --accent-blue: #00d4ff;
    --accent-purple: #7b2ff7;
    --gradient-start: #00d4ff;
    --gradient-end: #7b2ff7;
    --text-white: #ffffff;
    --text-gray: #b0b0b0;
    --text-light-gray: #e0e0e0;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --glow-blue: rgba(0, 212, 255, 0.3);
    --glow-purple: rgba(123, 47, 247, 0.3);
    --font-main: 'Inter', 'Noto Sans TC', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    background-color: var(--dark-bg);
    color: var(--text-white);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

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

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 2rem;
    transition: var(--transition-smooth);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    padding: 0.7rem 2rem;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.nav-logo img {
    height: 36px;
    width: 36px;
    object-fit: contain;
    filter: invert(1);
    transition: var(--transition-smooth);
}

.navbar.scrolled .nav-logo img {
    height: 30px;
    width: 30px;
}

.nav-logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 2px;
    background: linear-gradient(135deg, var(--text-white), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--accent-blue);
}

/* Mobile Menu */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-toggle span {
    width: 28px;
    height: 2px;
    background: var(--text-white);
    transition: var(--transition-smooth);
}

/* ========================================
   Hero Section - Redesigned
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--dark-bg);
}

.hero-bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg-animation .particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-blue);
    border-radius: 50%;
    animation: float-particle 6s infinite ease-in-out;
    opacity: 0.5;
}

@keyframes float-particle {
    0%, 100% { transform: translateY(0) translateX(0); opacity: 0.5; }
    50% { transform: translateY(-100px) translateX(50px); opacity: 1; }
}

.hero-grid-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(80px); }
}

/* Hero Glow Orbs */
.hero-glow-orbs {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.hero-glow-orbs .orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: orb-float 8s ease-in-out infinite;
}

.hero-glow-orbs .orb-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-blue);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.hero-glow-orbs .orb-2 {
    width: 350px;
    height: 350px;
    background: var(--accent-purple);
    bottom: -80px;
    left: -80px;
    animation-delay: 3s;
}

.hero-glow-orbs .orb-3 {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 5s;
    opacity: 0.2;
}

@keyframes orb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-glow-orbs .orb-3 {
    animation-name: orb-float-center;
}

@keyframes orb-float-center {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    33% { transform: translate(-50%, -50%) scale(1.1); }
    66% { transform: translate(-50%, -50%) scale(0.9); }
}

/* Hero Content */
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 2rem;
    max-width: 900px;
}

/* Hero Brand Mark - CSS J Letter */
.hero-brand-mark {
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
}

.hero-brand-mark .j-icon {
    width: 120px;
    height: 120px;
    object-fit: contain;
    filter: drop-shadow(0 0 20px var(--glow-blue)) drop-shadow(0 0 40px var(--glow-purple));
    animation: brand-pulse 4s ease-in-out infinite;
}

@keyframes brand-pulse {
    0%, 100% { 
        filter: drop-shadow(0 0 20px var(--glow-blue)) drop-shadow(0 0 40px rgba(123, 47, 247, 0.2));
        transform: scale(1);
    }
    50% { 
        filter: drop-shadow(0 0 30px var(--glow-purple)) drop-shadow(0 0 60px var(--glow-blue));
        transform: scale(1.05);
    }
}

/* Hero Main Title - JLS PRO as CSS text */
.hero-brand-title {
    font-size: 5rem;
    font-weight: 800;
    letter-spacing: 12px;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent-blue) 50%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradient-shift 4s ease-in-out infinite, fadeInUp 1s ease 0.2s both;
    position: relative;
    text-transform: uppercase;
}

.hero-brand-title::after {
    content: 'JLS PRO';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    font-size: 5rem;
    font-weight: 800;
    letter-spacing: 12px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: text-flicker 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes text-flicker {
    0%, 100% { opacity: 0; }
    50% { opacity: 0.3; }
}

/* Hero Tagline - Professional · Proactive · Production */
.hero-tagline {
    font-size: 1.2rem;
    color: var(--text-gray);
    letter-spacing: 6px;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.4s both;
    position: relative;
    text-transform: uppercase;
    font-weight: 300;
}

.hero-tagline::before,
.hero-tagline::after {
    content: '';
    display: inline-block;
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-blue));
    vertical-align: middle;
    margin: 0 1rem;
}

.hero-tagline::after {
    background: linear-gradient(90deg, var(--accent-purple), transparent);
}

/* Decorative line under brand */
.hero-brand-line {
    width: 120px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    margin: 0 auto 2rem;
    position: relative;
    animation: fadeInUp 1s ease 0.3s both;
}

.hero-brand-line::before {
    content: '';
    position: absolute;
    top: -3px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent-blue);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-blue);
    animation: line-dot-pulse 2s ease-in-out infinite;
}

@keyframes line-dot-pulse {
    0%, 100% { box-shadow: 0 0 10px var(--accent-blue); }
    50% { box-shadow: 0 0 20px var(--accent-purple), 0 0 40px var(--accent-blue); }
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-white) 30%, var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease 0.5s both;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-gray);
    max-width: 650px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    animation: fadeInUp 1s ease 0.7s both;
}

.hero-cta {
    display: inline-flex;
    gap: 1.5rem;
    animation: fadeInUp 1s ease 0.9s both;
}



/* Buttons */
.btn-primary {
    padding: 0.9rem 2.5rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border: none;
    border-radius: 50px;
    color: var(--text-white);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px var(--glow-blue);
}

.btn-secondary {
    padding: 0.9rem 2.5rem;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    color: var(--text-white);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-secondary:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.1);
}

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

.hero-scroll-indicator span {
    display: block;
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--accent-blue);
    border-bottom: 2px solid var(--accent-blue);
    transform: rotate(45deg);
    opacity: 0.6;
}

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

/* ========================================
   Sections Common
   ======================================== */
.section {
    padding: 6rem 2rem;
    position: relative;
}

.section-dark {
    background: var(--dark-bg);
}

.section-darker {
    background: var(--dark-bg);
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-white), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    margin: 1rem auto;
    border-radius: 2px;
}

/* ========================================
   Services Grid
   ======================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(123, 47, 247, 0.05));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.service-card:hover::before {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(123, 47, 247, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

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

/* ========================================
   Portfolio / Cases Grid
   ======================================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 16/10;
    background: var(--secondary-black);
    border: 1px solid var(--card-border);
    transition: var(--transition-smooth);
}

.portfolio-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.15);
}

.portfolio-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.portfolio-card:hover .portfolio-card-img {
    transform: scale(1.05);
}

.portfolio-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition-smooth);
}

.portfolio-card:hover .portfolio-card-overlay {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-card-overlay h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.portfolio-card-overlay p {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.portfolio-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

/* ========================================
   Testimonials
   ======================================== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.5rem;
    position: relative;
    transition: var(--transition-smooth);
}

.testimonial-card:hover {
    border-color: rgba(123, 47, 247, 0.3);
    transform: translateY(-5px);
}

.testimonial-card .quote-icon {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    line-height: 1;
}

.testimonial-card p {
    color: var(--text-light-gray);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.testimonial-author-info h4 {
    font-size: 1rem;
    font-weight: 600;
}

.testimonial-author-info span {
    font-size: 0.85rem;
    color: var(--text-gray);
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(123, 47, 247, 0.05));
}

.cta-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
}

.cta-section p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    position: relative;
}

/* ========================================
   About Page
   ======================================== */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-white), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 1.2rem;
    line-height: 1.8;
}

.about-image {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    position: relative;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* About brand display - replaces raw logo image */
.about-brand-display {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    background: var(--primary-black);
    padding: 4rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 300px;
}

.about-brand-display::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
}

.about-brand-display .brand-j-icon {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: invert(1) drop-shadow(0 0 15px var(--glow-blue));
    margin-bottom: 1.5rem;
    position: relative;
}

.about-brand-display .brand-text {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 8px;
    background: linear-gradient(135deg, #ffffff, var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    margin-bottom: 0.5rem;
}

.about-brand-display .brand-tagline {
    font-size: 0.9rem;
    letter-spacing: 4px;
    color: var(--text-gray);
    text-transform: uppercase;
    position: relative;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.value-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    transition: var(--transition-smooth);
}

.value-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-5px);
}

.value-card .value-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.value-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}

.value-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* Team Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.team-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    transition: var(--transition-smooth);
}

.team-card:hover {
    border-color: rgba(123, 47, 247, 0.3);
    transform: translateY(-5px);
}

.team-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
}

.team-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.team-card .role {
    color: var(--accent-blue);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

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

/* ========================================
   Contact Page
   ======================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-form {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 3rem;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.9rem 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    color: var(--text-white);
    font-size: 1rem;
    font-family: var(--font-main);
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.1);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-info-item {
    display: flex;
    gap: 1.2rem;
    align-items: flex-start;
}

.contact-info-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(123, 47, 247, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.contact-info-item h4 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.contact-info-item p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.contact-map {
    margin-top: 2rem;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    height: 250px;
    background: var(--secondary-black);
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition-smooth);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-color: transparent;
    transform: translateY(-3px);
}

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

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), var(--accent-purple), transparent);
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-brand-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.footer-brand-header img {
    height: 32px;
    width: 32px;
    object-fit: contain;
    filter: invert(1);
}

.footer-brand-header .footer-brand-name {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 2px;
    background: linear-gradient(135deg, var(--text-white), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
    color: var(--text-white);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.7rem;
}

.footer-col ul li a {
    color: var(--text-gray);
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.footer-col ul li a:hover {
    color: var(--accent-blue);
    padding-left: 5px;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: var(--text-gray);
    font-size: 0.85rem;
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    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 pulse-glow {
    0%, 100% { box-shadow: 0 0 20px var(--glow-blue); }
    50% { box-shadow: 0 0 40px var(--glow-purple); }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Stagger animation for grid items */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ========================================
   Stats Section
   ======================================== */
.stats-section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    padding: 4rem 0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* ========================================
   Page Header (for inner pages) - Redesigned
   ======================================== */
.page-header {
    padding: 10rem 2rem 4rem;
    text-align: center;
    position: relative;
    background: var(--dark-bg);
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* Page header glow effect */
.page-header::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(0, 212, 255, 0.06) 0%, rgba(123, 47, 247, 0.03) 40%, transparent 70%);
    pointer-events: none;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-white), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-gray);
    position: relative;
}

/* Page header brand watermark */
.page-header .page-brand-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    max-width: 80%;
    height: auto;
    opacity: 0.04;
    pointer-events: none;
}

/* ========================================
   Services Detail Page
   ======================================== */
.service-detail-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: start;
    padding: 2.5rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    margin-bottom: 2rem;
    transition: var(--transition-smooth);
}

.service-detail-card:hover {
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateX(5px);
}

.service-detail-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(123, 47, 247, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.service-detail-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

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

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.service-feature-tag {
    padding: 0.3rem 0.8rem;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--accent-blue);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .about-intro {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .stats-section {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(10, 10, 10, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-toggle {
        display: flex;
    }

    .nav-logo-text {
        display: none;
    }
    
    .hero-brand-title {
        font-size: 3rem;
        letter-spacing: 6px;
    }

    .hero-brand-title::after {
        font-size: 3rem;
        letter-spacing: 6px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-tagline {
        font-size: 0.85rem;
        letter-spacing: 3px;
    }

    .hero-tagline::before,
    .hero-tagline::after {
        width: 20px;
        margin: 0 0.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }

    .page-header .page-brand-watermark {
        width: 300px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .stats-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 2.2rem;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .service-detail-card {
        grid-template-columns: 1fr;
    }
    
    .about-intro {
        grid-template-columns: 1fr;
    }

    .hero-glow-orbs .orb-1 {
        width: 200px;
        height: 200px;
    }

    .hero-glow-orbs .orb-2 {
        width: 180px;
        height: 180px;
    }

    .hero-glow-orbs .orb-3 {
        width: 150px;
        height: 150px;
    }
}

/* ========================================
   Language Toggle Button
   ======================================== */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-main);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-gray);
    margin-left: 1.5rem;
    white-space: nowrap;
}

.lang-toggle:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.3);
}

.lang-separator {
    color: rgba(255, 255, 255, 0.25);
    font-weight: 300;
    user-select: none;
}

.lang-opt-zh,
.lang-opt-en {
    transition: color 0.3s ease, font-weight 0.3s ease;
    padding: 0.15rem 0.3rem;
    border-radius: 4px;
}

.lang-opt-zh.active,
.lang-opt-en.active {
    color: var(--accent-blue);
    font-weight: 700;
}

/* Mobile responsive for lang toggle */
@media (max-width: 768px) {
    .lang-toggle {
        position: fixed;
        top: 1rem;
        right: 4.5rem;
        z-index: 1001;
        margin-left: 0;
        padding: 0.35rem 0.8rem;
        font-size: 0.78rem;
        background: rgba(10, 10, 10, 0.9);
        backdrop-filter: blur(10px);
    }
}