/* ═══════════════════════════════════════════════════════════
   RS SYSTEM - Professional Mobile-First Stylesheet
   ═══════════════════════════════════════════════════════════ */

/* --- Custom Properties --- */
:root {
    --color-bg: #0a0a0a;
    --color-bg-elevated: #111111;
    --color-surface: #1a1a1a;
    --color-text: #ffffff;
    --color-text-muted: #888888;
    --color-text-subtle: #555555;
    --color-accent: #ffffff;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.2);
    
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --font-jp: 'Zen Kaku Gothic New', sans-serif;
    
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    
    --duration-fast: 0.2s;
    --duration-normal: 0.4s;
    --duration-slow: 0.8s;
    --duration-slower: 1.2s;
    
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 40px;
    --space-xl: 64px;
    --space-2xl: 100px;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

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

/* --- Custom Cursor (Desktop only) --- */
.cursor-dot,
.cursor-outline {
    display: none;
}

@media (hover: hover) and (min-width: 1024px) {
    .cursor-dot {
        display: block;
        position: fixed;
        width: 8px;
        height: 8px;
        background: var(--color-text);
        border-radius: 50%;
        pointer-events: none;
        z-index: 9999;
        transform: translate(-50%, -50%);
        transition: transform 0.1s ease;
    }
    
    .cursor-outline {
        display: block;
        position: fixed;
        width: 40px;
        height: 40px;
        border: 1px solid rgba(255, 255, 255, 0.3);
        border-radius: 50%;
        pointer-events: none;
        z-index: 9998;
        transform: translate(-50%, -50%);
        transition: all 0.15s ease;
    }
    
    body.cursor-hover .cursor-outline {
        width: 60px;
        height: 60px;
        border-color: rgba(255, 255, 255, 0.6);
    }
}

/* --- Loading Screen --- */
.loading-screen {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    transition: opacity 0.6s var(--ease-out-expo), visibility 0.6s;
}

.loading-screen.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-logo {
    font-family: var(--font-display);
    font-size: clamp(48px, 15vw, 80px);
    letter-spacing: 0.1em;
    color: var(--color-text);
}

.loading-bar {
    width: 120px;
    height: 2px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.loading-progress {
    width: 0;
    height: 100%;
    background: var(--color-text);
    animation: loadProgress 1.5s var(--ease-out-expo) forwards;
}

@keyframes loadProgress {
    to { width: 100%; }
}

/* ═══════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) var(--space-md);
    transition: all var(--duration-normal) var(--ease-out-quart);
}

.header.is-scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

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

.header-logo {
    display: flex;
    align-items: baseline;
    gap: 6px;
    z-index: 1001;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 28px;
    letter-spacing: 0.05em;
}

.logo-sub {
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.2em;
    opacity: 0.5;
}

/* --- Navigation --- */
.global-nav {
    position: fixed;
    inset: 0;
    z-index: 999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-2xl) var(--space-md);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-normal) var(--ease-out-expo),
                visibility var(--duration-normal);
}

.global-nav.is-active {
    opacity: 1;
    visibility: visible;
}

.nav-bg {
    position: absolute;
    inset: 0;
    background: var(--color-bg);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.global-nav.is-active .nav-bg {
    transform: scaleY(1);
}

.nav-list {
    list-style: none;
    position: relative;
    z-index: 1;
}

.nav-item {
    overflow: hidden;
}
.nav-item.has-dropdown {
    overflow: visible;
}

.nav-dropdown {
    list-style: none;
    display: none;
    padding-left: 40px;
}
.nav-item.has-dropdown.open .nav-dropdown {
    display: block;
}
.nav-dropdown li a {
    font-family: var(--font-body) !important;
    font-size: 16px !important;
    letter-spacing: 0.05em !important;
    color: var(--color-text-muted);
    padding: 6px 0;
    display: block;
    transform: none !important;
    opacity: 1 !important;
}
.nav-dropdown li a::before {
    display: none !important;
}
.nav-dropdown li a:hover {
    color: var(--color-text);
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    font-family: var(--font-display);
    font-size: clamp(40px, 12vw, 72px);
    letter-spacing: 0.02em;
    transform: translateY(100%);
    opacity: 0;
    transition: transform var(--duration-slow) var(--ease-out-expo),
                opacity var(--duration-slow) var(--ease-out-expo),
                color var(--duration-fast);
}

.global-nav.is-active .nav-item a {
    transform: translateY(0);
    opacity: 1;
}

.nav-item:nth-child(1) a { transition-delay: 0.1s; }
.nav-item:nth-child(2) a { transition-delay: 0.15s; }
.nav-item:nth-child(3) a { transition-delay: 0.2s; }
.nav-item:nth-child(4) a { transition-delay: 0.25s; }

.nav-item a::before {
    content: attr(data-index);
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    min-width: 24px;
}

.nav-item a:hover {
    color: var(--color-text-muted);
}

.nav-footer {
    position: relative;
    z-index: 1;
    margin-top: auto;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--duration-slow) var(--ease-out-expo) 0.3s;
}

.global-nav.is-active .nav-footer {
    opacity: 1;
    transform: translateY(0);
}

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

.nav-footer-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--duration-fast);
}

.nav-footer-links a:hover {
    color: var(--color-text);
}

/* --- Hamburger --- */
.hamburger {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    z-index: 1001;
    padding: var(--space-xs);
    margin-right: calc(var(--space-xs) * -1);
}

.hamburger-box {
    width: 24px;
    height: 14px;
    position: relative;
}

.hamburger-line {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.hamburger-line:first-child { top: 0; }
.hamburger-line:last-child { bottom: 0; }

.hamburger.is-active .hamburger-line:first-child {
    transform: translateY(6px) rotate(45deg);
}

.hamburger.is-active .hamburger-line:last-child {
    transform: translateY(-6px) rotate(-45deg);
}

.hamburger-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* ═══════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════ */
.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--space-2xl) var(--space-md);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(50, 50, 50, 0.4) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(30, 30, 30, 0.3) 0%, transparent 50%),
        var(--color-bg);
}

.hero-noise {
    position: absolute;
    inset: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    opacity: 0;
    animation: fadeInUp 1s var(--ease-out-expo) 1.6s forwards;
}

.eyebrow-line {
    width: 40px;
    height: 1px;
    background: var(--color-text-muted);
}

.eyebrow-text {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(48px, 18vw, 140px);
    line-height: 0.9;
    letter-spacing: 0.02em;
    margin-bottom: var(--space-md);
}

.hero-title .title-line {
    display: block;
    overflow: hidden;
}

.hero-title .title-inner {
    display: block;
    transform: translateY(100%);
    animation: slideUp 1s var(--ease-out-expo) forwards;
}

.hero-title .title-line:nth-child(1) .title-inner { animation-delay: 1.7s; }
.hero-title .title-line:nth-child(2) .title-inner { animation-delay: 1.8s; }
.hero-title .title-line:nth-child(3) .title-inner { animation-delay: 1.9s; }

.hero-desc {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    opacity: 0;
    animation: fadeInUp 1s var(--ease-out-expo) 2.1s forwards;
}

.hero-cta {
    opacity: 0;
    animation: fadeInUp 1s var(--ease-out-expo) 2.2s forwards;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-text);
    color: var(--color-bg);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.1em;
    border-radius: var(--radius-full);
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.btn-primary:hover {
    gap: var(--space-md);
    padding-right: var(--space-lg);
}

.btn-arrow {
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

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

/* Hero scroll indicator */
.hero-scroll {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    opacity: 0;
    animation: fadeIn 1s var(--ease-out-expo) 2.5s forwards;
}

.scroll-text {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--color-text-muted), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); }
}

/* Hero badge */
.hero-badge {
    position: absolute;
    bottom: var(--space-lg);
    right: var(--space-md);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--color-text-subtle);
    opacity: 0;
    animation: fadeIn 1s var(--ease-out-expo) 2.5s forwards;
}

/* ═══════════════════════════════════════════════════════════
   ABOUT SECTION
   ═══════════════════════════════════════════════════════════ */
.about {
    background: var(--color-bg);
    position: relative;
}

.about-marquee {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm) 0;
    overflow: hidden;
}

.marquee-track {
    display: flex;
    gap: 0;
    white-space: nowrap;
    animation: marquee 20s linear infinite;
}

.marquee-track span {
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 0.4em;
    color: var(--color-text-subtle);
    padding: 0 var(--space-md);
}

@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.about-content {
    padding: var(--space-2xl) var(--space-md);
    max-width: 1200px;
    margin: 0 auto;
}

.about-header {
    margin-bottom: var(--space-xl);
}

.section-index {
    display: block;
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--color-text-subtle);
    margin-bottom: var(--space-md);
}

.section-index.light {
    color: var(--color-text-muted);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 10vw, 72px);
    line-height: 1;
    letter-spacing: 0.02em;
}

.section-title .title-line {
    display: block;
    overflow: hidden;
}

.section-title .title-line span {
    display: block;
    transform: translateY(100%);
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.section-title.is-visible .title-line span {
    transform: translateY(0);
}

.section-title .title-line:nth-child(2) span { transition-delay: 0.1s; }
.section-title .title-line:nth-child(3) span { transition-delay: 0.2s; }

.about-body {
    display: grid;
    gap: var(--space-xl);
}

.about-desc {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.desc-jp {
    font-family: var(--font-jp);
    font-size: 15px;
    line-height: 2;
    color: var(--color-text);
}

.desc-en {
    font-size: 13px;
    line-height: 1.8;
    color: var(--color-text-muted);
}

.about-keywords {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--color-border);
}

.keyword-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border);
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.keyword-item:hover {
    padding-left: var(--space-sm);
}

.kw-num {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-text-subtle);
    min-width: 28px;
}

.kw-name {
    font-family: var(--font-display);
    font-size: 24px;
    letter-spacing: 0.1em;
    flex: 1;
}

.kw-dot {
    width: 6px;
    height: 6px;
    background: var(--color-text-subtle);
    border-radius: 50%;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.keyword-item:hover .kw-dot {
    background: var(--color-text);
    transform: scale(1.5);
}

/* ═══════════════════════════════════════════════════════════
   BRANDS SECTION
   ═══════════════════════════════════════════════════════════ */
.brands {
    background: var(--color-bg-elevated);
    padding: var(--space-2xl) var(--space-md);
}

.brands-header {
    max-width: 1200px;
    margin: 0 auto var(--space-xl);
}

.section-title-lg {
    font-family: var(--font-display);
    font-size: clamp(60px, 18vw, 160px);
    line-height: 0.85;
    letter-spacing: 0.02em;
    overflow: hidden;
}

.section-title-lg span {
    display: block;
    transform: translateY(100%);
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.section-title-lg.is-visible span {
    transform: translateY(0);
}

.brands-grid {
    display: grid;
    gap: var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.brand-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

.brand-card:hover {
    transform: translateY(-8px);
}

.brand-visual {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.brand-img {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

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

.brand-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 50%);
}

.brand-num {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-family: var(--font-display);
    font-size: 48px;
    color: rgba(255,255,255,0.1);
}

.brand-info {
    padding: var(--space-md);
}

.brand-name {
    font-family: var(--font-display);
    font-size: 28px;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.brand-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.brand-desc {
    font-family: var(--font-jp);
    font-size: 13px;
    line-height: 1.9;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.brand-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-text);
    transition: gap var(--duration-normal) var(--ease-out-expo);
}

.brand-link:hover {
    gap: var(--space-sm);
}

.link-arrow {
    font-size: 14px;
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

.brand-link:hover .link-arrow {
    transform: translate(2px, -2px);
}

/* ═══════════════════════════════════════════════════════════
   SERVICES SECTION
   ═══════════════════════════════════════════════════════════ */
.services {
    background: var(--color-bg);
    padding: var(--space-2xl) var(--space-md);
}

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

.services-header {
    margin-bottom: var(--space-xl);
}

.services-list {
    display: flex;
    flex-direction: column;
}

.service-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border);
    transition: all var(--duration-normal) var(--ease-out-expo);
    cursor: pointer;
}

.service-item:first-child {
    border-top: 1px solid var(--color-border);
}

.service-item:hover {
    padding-left: var(--space-sm);
    border-color: var(--color-border-hover);
}

.service-num {
    font-family: var(--font-display);
    font-size: 36px;
    color: var(--color-text-subtle);
    min-width: 50px;
    transition: color var(--duration-normal);
}

.service-item:hover .service-num {
    color: var(--color-text);
}

.service-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.service-name {
    font-family: var(--font-display);
    font-size: clamp(24px, 6vw, 36px);
    letter-spacing: 0.05em;
}

.service-desc {
    font-family: var(--font-jp);
    font-size: 12px;
    color: var(--color-text-muted);
}

.service-arrow {
    font-size: 20px;
    color: var(--color-text-subtle);
    transform: translateX(-10px);
    opacity: 0;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.service-item:hover .service-arrow {
    transform: translateX(0);
    opacity: 1;
    color: var(--color-text);
}

/* ═══════════════════════════════════════════════════════════
   CONTACT SECTION
   ═══════════════════════════════════════════════════════════ */
.contact {
    background: var(--color-text);
    color: var(--color-bg);
    padding: var(--space-2xl) var(--space-md);
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.contact-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-header {
    margin-bottom: var(--space-xl);
}

.contact-title {
    font-family: var(--font-display);
    font-size: clamp(48px, 14vw, 120px);
    line-height: 0.9;
    letter-spacing: 0.02em;
}

.contact-title .title-line {
    display: block;
    overflow: hidden;
}

.contact-title .title-line span {
    display: block;
    transform: translateY(100%);
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.contact-title.is-visible .title-line span {
    transform: translateY(0);
}

.contact-title .title-line:nth-child(2) span { transition-delay: 0.1s; }
.contact-title .title-line:nth-child(3) span { transition-delay: 0.2s; }

.contact-body {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-desc {
    font-family: var(--font-jp);
    font-size: 14px;
    color: var(--color-text-muted);
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    transition: gap var(--duration-normal) var(--ease-out-expo);
}

.contact-btn:hover {
    gap: var(--space-lg);
}

.btn-circle {
    width: 60px;
    height: 60px;
    border: 2px solid var(--color-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.contact-btn:hover .btn-circle {
    background: var(--color-bg);
}

.btn-icon {
    font-size: 20px;
    transition: color var(--duration-normal);
}

.contact-btn:hover .btn-icon {
    color: var(--color-text);
}

.btn-label {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.1em;
}

.contact-links {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.social-link {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--duration-fast);
}

.social-link:hover {
    color: var(--color-bg);
}

.link-divider {
    color: var(--color-text-subtle);
}

/* ═══════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════ */
.footer {
    background: var(--color-bg);
    padding: var(--space-xl) var(--space-md);
    border-top: 1px solid var(--color-border);
}

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

.footer-brand {
    margin-bottom: var(--space-lg);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 24px;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.footer-tagline {
    font-size: 10px;
    letter-spacing: 0.2em;
    color: var(--color-text-subtle);
}

.footer-address {
    font-style: normal;
    font-size: 12px;
    line-height: 2;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.footer-bottom {
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.copyright {
    font-size: 10px;
    letter-spacing: 0.15em;
    color: var(--color-text-subtle);
}

/* ═══════════════════════════════════════════════════════════
   ANIMATIONS & REVEALS
   ═══════════════════════════════════════════════════════════ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

/* Reveal animations */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--duration-slow) var(--ease-out-expo),
                transform var(--duration-slow) var(--ease-out-expo);
}

.reveal-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-text .title-line span {
    transform: translateY(100%);
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.reveal-text.is-visible .title-line span {
    transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════
   DESKTOP STYLES (768px+)
   ═══════════════════════════════════════════════════════════ */
@media (min-width: 768px) {
    :root {
        --space-md: 32px;
        --space-lg: 60px;
        --space-xl: 100px;
        --space-2xl: 140px;
    }
    
    .header {
        padding: var(--space-md) var(--space-lg);
    }
    
    .logo-text {
        font-size: 32px;
    }
    
    .hamburger-label {
        display: inline;
    }
    
    .hero-desc {
        font-size: 16px;
    }
    
    .btn-primary {
        padding: var(--space-sm) var(--space-lg);
    }
    
    .about-body {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2xl);
    }
    
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .brand-info {
        padding: var(--space-lg);
    }
    
    .brand-name {
        font-size: 32px;
    }
    
    .service-item {
        padding: var(--space-lg) 0;
    }
    
    .service-num {
        font-size: 48px;
        min-width: 80px;
    }
    
    .btn-circle {
        width: 80px;
        height: 80px;
    }
    
    .btn-icon {
        font-size: 24px;
    }
    
    .footer-inner {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }
    
    .footer-bottom {
        grid-column: 1 / -1;
    }
}

/* ═══════════════════════════════════════════════════════════
   LARGE DESKTOP (1200px+)
   ═══════════════════════════════════════════════════════════ */
@media (min-width: 1200px) {
    .global-nav {
        position: static;
        opacity: 1;
        visibility: visible;
        padding: 0;
        background: none;
    }
    
    .nav-bg {
        display: none;
    }
    
    .nav-list {
        display: flex;
        gap: var(--space-lg);
    }
    
    .nav-item a {
        font-family: var(--font-body);
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 0.1em;
        padding: 0;
        transform: none;
        opacity: 1;
    }
    
    .nav-item a::before {
        display: none;
    }
    
    .nav-footer {
        display: none;
    }

    .hamburger {
        display: none;
    }

    /* --- Dropdown --- */
    .nav-item.has-dropdown {
        position: relative;
        overflow: visible;
    }
    .nav-dropdown {
        display: block;
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        list-style: none;
        background: rgba(15, 15, 15, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border: none;
        border-radius: var(--radius-md);
        padding: var(--space-xs) 0;
        min-width: 160px;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateX(-50%) translateY(8px);
        transition: all var(--duration-fast) var(--ease-out-expo);
    }
    .nav-item.has-dropdown::after {
        content: '';
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        height: 16px;
    }
    .nav-item.has-dropdown:hover .nav-dropdown {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateX(-50%) translateY(0);
    }
    .nav-dropdown li a {
        display: block;
        padding: 10px 14px;
        font-size: 12px;
        font-weight: 500;
        letter-spacing: 0.05em;
        color: var(--color-text-muted);
        white-space: nowrap;
        transition: all var(--duration-fast);
    }
    .nav-dropdown li a:hover {
        color: var(--color-text);
        background: rgba(255, 255, 255, 0.05);
    }
    
    .about-content {
        display: grid;
        grid-template-columns: 1fr 1.2fr;
        gap: var(--space-2xl);
        align-items: start;
    }
    
    .about-body {
        display: flex;
        flex-direction: column;
        gap: var(--space-xl);
    }
    
    .kw-name {
        font-size: 32px;
    }
}

/* ═══════════════════════════════════════════════════════════
   SAFE AREA (iPhone X+)
   ═══════════════════════════════════════════════════════════ */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .footer {
        padding-bottom: calc(var(--space-xl) + env(safe-area-inset-bottom));
    }
    
    .hero-scroll {
        bottom: calc(var(--space-lg) + env(safe-area-inset-bottom));
    }
    
    .hero-badge {
        bottom: calc(var(--space-lg) + env(safe-area-inset-bottom));
    }
}

/* ═══════════════════════════════════════════════════════════
   REDUCED MOTION
   ═══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}