/* ==========================================================================
   joz Corporate Site — "Friendly Tech"
   Casual startup feel with warm orange, soft shapes, playful illustrations
   ========================================================================== */

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

:root {
    --color-main: #E67E49;
    --color-main-hover: #D06E3B;
    --color-main-light: #F5A67B;
    --color-main-pale: #FFF4EE;
    --color-main-glow: rgba(230, 126, 73, 0.12);
    --color-ink: #1E293B;
    --color-ink-soft: #475569;
    --color-ink-muted: #94A3B8;
    --color-bg: #FAFAF8;
    --color-surface: #FFFFFF;
    --color-surface-hover: #FFF8F4;
    --color-dark: #0F172A;
    --color-accent: #3B82F6;
    --color-accent-soft: #DBEAFE;
    --color-green: #10B981;
    --color-green-soft: #D1FAE5;
    --font-display: 'Syne', sans-serif;
    --font-ja: 'Noto Sans JP', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --max-width: 1120px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 100px;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 20px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 10px 40px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.04);
    --shadow-glow: 0 8px 32px rgba(230, 126, 73, 0.15);
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-ja);
    color: var(--color-ink);
    background: var(--color-bg);
    line-height: 1.8;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

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

ul {
    list-style: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

/* ---------- Animations ---------- */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(32px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(3deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.05); opacity: 1; }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(250, 250, 248, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(30, 41, 59, 0.06);
    transition: all 0.4s var(--ease);
}

.site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-ink);
    transition: transform 0.3s var(--ease);
}

.site-logo:hover {
    transform: scale(1.02);
    color: var(--color-ink);
}

.site-logo .logo-main {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.site-logo .logo-sub {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-main);
    background: var(--color-main-pale);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    letter-spacing: 0.06em;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-list a {
    color: var(--color-ink-soft);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    transition: all 0.3s var(--ease);
}

.nav-list a::after { display: none; }

.nav-list a:hover,
.nav-list a.active {
    color: var(--color-main);
    background: var(--color-main-pale);
}

.nav-contact {
    background: var(--color-main) !important;
    color: #fff !important;
    padding: 10px 24px !important;
    border-radius: var(--radius-full) !important;
    font-size: 0.82rem !important;
    font-weight: 600 !important;
    transition: all 0.3s var(--ease) !important;
    box-shadow: 0 2px 12px rgba(230, 126, 73, 0.25);
}

.nav-contact:hover {
    background: var(--color-main-hover) !important;
    color: #fff !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(230, 126, 73, 0.35) !important;
}

/* Hamburger */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 32px;
    height: 24px;
    position: relative;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-ink);
    position: absolute;
    left: 0;
    border-radius: 2px;
    transition: all 0.4s var(--ease);
}

.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 11px; }
.hamburger span:nth-child(3) { top: 22px; }

.hamburger.is-active span:nth-child(1) { top: 11px; transform: rotate(45deg); }
.hamburger.is-active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.is-active span:nth-child(3) { top: 11px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-main-pale) 50%, var(--color-bg) 100%);
}

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

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-surface);
    border: 1px solid rgba(230, 126, 73, 0.15);
    padding: 6px 16px 6px 8px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    color: var(--color-ink-soft);
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
    animation: slideUp 0.6s var(--ease) both;
}

.hero-badge .badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-green);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.hero h1 {
    font-family: var(--font-ja);
    font-size: 2.6rem;
    font-weight: 700;
    line-height: 1.5;
    color: var(--color-ink);
    letter-spacing: -0.01em;
    animation: slideUp 0.7s var(--ease) 0.1s both;
}

.hero .hero-accent {
    color: var(--color-main);
    position: relative;
    white-space: nowrap;
}

.hero .hero-accent::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 8px;
    background: var(--color-main-glow);
    border-radius: 4px;
    z-index: -1;
}

.hero p {
    font-size: 1rem;
    color: var(--color-ink-soft);
    margin-top: 24px;
    margin-bottom: 40px;
    animation: slideUp 0.7s var(--ease) 0.2s both;
    line-height: 2;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    animation: slideUp 0.7s var(--ease) 0.3s both;
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 1s var(--ease) 0.3s both;
}

.hero-visual svg { width: 100%; max-width: 480px; height: auto; }

.hero-deco {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.hero-deco-1 {
    width: 280px; height: 280px;
    background: radial-gradient(circle, var(--color-main-glow) 0%, transparent 70%);
    top: -40px; right: -40px;
    animation: float 6s ease-in-out infinite;
}

.hero-deco-2 {
    width: 160px; height: 160px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
    bottom: 0; left: -20px;
    animation: floatSlow 8s ease-in-out infinite;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--color-main);
    color: #fff;
    font-family: var(--font-ja);
    font-size: 0.88rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.3s var(--ease);
    text-decoration: none;
    box-shadow: 0 2px 12px rgba(230, 126, 73, 0.2);
}

.btn:hover {
    background: var(--color-main-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn:active { transform: translateY(0); }

.btn svg {
    width: 16px; height: 16px;
    transition: transform 0.3s var(--ease);
}

.btn:hover svg { transform: translateX(3px); }

.btn-outline {
    background: var(--color-surface);
    border: 1.5px solid rgba(30, 41, 59, 0.12);
    color: var(--color-ink);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--color-surface);
    color: var(--color-main);
    border-color: var(--color-main);
    box-shadow: var(--shadow-sm);
}

.btn-ghost {
    background: transparent;
    color: var(--color-ink-soft);
    box-shadow: none;
    padding: 14px 20px;
}

.btn-ghost:hover {
    background: rgba(30, 41, 59, 0.04);
    color: var(--color-ink);
    box-shadow: none;
    transform: none;
}

/* ---------- Sections ---------- */
.section { padding: 100px 0; }
.section-alt { background: var(--color-surface); }

.section-title { margin-bottom: 56px; }

.section-title h2 {
    font-family: var(--font-ja);
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-title h2::after { display: none; }

.section-title h2 .section-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    background: var(--color-main-pale);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.section-title h2 .section-icon svg {
    width: 20px; height: 20px;
    color: var(--color-main);
}

.section-title .section-title-en {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--color-ink-muted);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-top: 8px;
    display: block;
}

/* ---------- Service Cards (TOP) ---------- */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.service-card {
    padding: 36px 32px;
    background: var(--color-surface);
    border: 1px solid rgba(30, 41, 59, 0.06);
    border-radius: var(--radius-lg);
    transition: all 0.4s var(--ease);
    position: relative;
    overflow: hidden;
}

.service-card::before { display: none; }

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(230, 126, 73, 0.15);
}

.service-card .icon {
    width: 56px; height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-main-pale);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    transition: all 0.4s var(--ease);
}

.service-card .icon svg {
    width: 28px; height: 28px;
    color: var(--color-main);
}

.service-card:hover .icon {
    background: var(--color-main);
    transform: scale(1.05);
}

.service-card:hover .icon svg { color: #fff; }

.service-card h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.service-card p {
    font-size: 0.88rem;
    color: var(--color-ink-muted);
    line-height: 1.8;
}

.service-card .card-arrow {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-main);
    opacity: 0;
    transform: translateX(-8px);
    transition: all 0.3s var(--ease);
}

.service-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

.service-card .card-arrow svg { width: 14px; height: 14px; }

/* ---------- Service Detail (service.php) ---------- */
.service-detail {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 24px;
    align-items: start;
    padding: 36px;
    margin-bottom: 16px;
    background: var(--color-surface);
    border: 1px solid rgba(30, 41, 59, 0.06);
    border-radius: var(--radius-lg);
    transition: all 0.4s var(--ease);
}

.service-detail:last-child { border-bottom: none; }

.service-detail:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(230, 126, 73, 0.12);
    transform: translateX(4px);
    padding-left: 36px;
}

.service-detail .icon {
    width: 64px; height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-main-pale);
    border-radius: var(--radius-md);
    transition: all 0.4s var(--ease);
    font-size: 1.8rem;
    border: none;
}

.service-detail .icon svg {
    width: 28px; height: 28px;
    color: var(--color-main);
}

.service-detail:hover .icon {
    background: var(--color-main);
    transform: scale(1.05) rotate(-3deg);
    filter: none;
}

.service-detail:hover .icon svg { color: #fff; }

.service-detail h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.service-detail p {
    color: var(--color-ink-soft);
    line-height: 1.9;
    font-size: 0.92rem;
}

/* ---------- Page Header ---------- */
.page-header {
    padding: 64px 0 48px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-main-pale) 100%);
}

.page-header::after { display: none; }

.page-header .container { position: relative; z-index: 1; }

.page-header h1 {
    font-family: var(--font-ja);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-ink);
    animation: slideUp 0.6s var(--ease) both;
}

.page-header .page-header-en {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--color-main);
    font-weight: 500;
    margin-top: 8px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    animation: slideUp 0.6s var(--ease) 0.1s both;
}

.page-header-deco {
    position: absolute;
    top: -30px; right: -20px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, var(--color-main-glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: float 6s ease-in-out infinite;
}

/* ---------- News ---------- */
.news-list { max-width: 800px; }

.news-item {
    display: grid;
    grid-template-columns: auto auto 1fr;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    margin-bottom: 8px;
    border-radius: var(--radius-md);
    transition: all 0.3s var(--ease);
}

.news-item:hover {
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    padding-left: 20px;
}

.news-date {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--color-ink-muted);
    white-space: nowrap;
}

.news-category {
    display: inline-block;
    font-size: 0.7rem;
    padding: 4px 12px;
    background: var(--color-ink);
    color: #fff;
    white-space: nowrap;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.news-category.press {
    background: var(--color-main);
}

.news-title { font-size: 0.92rem; font-weight: 500; }

.news-title a {
    color: var(--color-ink);
    transition: color 0.3s var(--ease);
}

.news-title a:hover { color: var(--color-main); }

/* ---------- CTA Section ---------- */
.cta-section { padding: 80px 0; position: relative; overflow: hidden; }

.cta-inner {
    background: var(--color-ink);
    border-radius: var(--radius-xl);
    padding: 72px 56px;
    position: relative;
    overflow: hidden;
}

.cta-inner::before {
    content: '';
    position: absolute;
    top: -50%; right: -10%;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(230, 126, 73, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-section h2 {
    font-family: var(--font-ja);
    font-size: 1.6rem;
    color: #fff;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 36px;
    font-size: 0.95rem;
}

.cta-section .btn { background: var(--color-main); color: #fff; }
.cta-section .btn:hover { background: var(--color-main-light); }

/* ---------- About (Table) ---------- */
.about-table {
    width: 100%;
    max-width: 800px;
    border-collapse: separate;
    border-spacing: 0;
}

.about-table tr { transition: all 0.3s var(--ease); }
.about-table tr:hover { background: var(--color-main-pale); }

.about-table th,
.about-table td {
    padding: 20px 16px;
    border-bottom: 1px solid rgba(30, 41, 59, 0.06);
    text-align: left;
    vertical-align: top;
}

.about-table th {
    width: 160px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-ink-muted);
}

.about-table td { font-size: 0.95rem; }

.about-table tr:last-child th,
.about-table tr:last-child td { border-bottom: none; }

/* ---------- CEO Message ---------- */
.ceo-message {
    max-width: 720px;
    padding: 48px;
    background: var(--color-surface);
    position: relative;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(30, 41, 59, 0.06);
    box-shadow: var(--shadow-sm);
}

.ceo-message::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: linear-gradient(180deg, var(--color-main), var(--color-main-light));
    border-radius: 4px 0 0 4px;
}

.ceo-quote-icon {
    width: 40px; height: 40px;
    color: var(--color-main);
    opacity: 0.3;
    margin-bottom: 16px;
}

.ceo-message p { line-height: 2.2; color: var(--color-ink-soft); font-size: 0.95rem; }

.ceo-name {
    text-align: right;
    margin-top: 32px;
    font-weight: 600;
    color: var(--color-ink);
    font-size: 0.95rem;
}

/* ---------- Contact Form ---------- */
.contact-form {
    max-width: 640px;
    padding: 48px;
    background: var(--color-surface);
    border: 1px solid rgba(30, 41, 59, 0.06);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.form-group { margin-bottom: 28px; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: 8px;
}

.form-group label .required {
    font-size: 0.68rem;
    color: #fff;
    background: var(--color-main);
    margin-left: 8px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-weight: 500;
    vertical-align: middle;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid rgba(30, 41, 59, 0.1);
    border-radius: var(--radius-sm);
    font-family: var(--font-ja);
    font-size: 0.95rem;
    transition: all 0.3s var(--ease);
    background: var(--color-bg);
    color: var(--color-ink);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-main);
    background: var(--color-surface);
    box-shadow: 0 0 0 3px var(--color-main-glow);
}

.form-group textarea { height: 180px; resize: vertical; }

.form-error {
    color: #DC2626;
    font-size: 0.8rem;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-error::before {
    content: '';
    display: inline-block;
    width: 6px; height: 6px;
    background: #DC2626;
    border-radius: 50%;
    flex-shrink: 0;
}

.form-actions { text-align: left; margin-top: 36px; }

/* Confirm page */
.confirm-table {
    width: 100%;
    max-width: 640px;
    border-collapse: collapse;
    margin-bottom: 40px;
}

.confirm-table th,
.confirm-table td {
    padding: 18px 16px;
    border-bottom: 1px solid rgba(30, 41, 59, 0.06);
    text-align: left;
    vertical-align: top;
}

.confirm-table th {
    width: 160px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-ink-muted);
}

.confirm-table td { white-space: pre-wrap; font-size: 0.95rem; }

.confirm-table tr:last-child th,
.confirm-table tr:last-child td { border-bottom: none; }

.form-actions .btn + .btn { margin-left: 12px; }

/* Complete page */
.complete-message { max-width: 540px; padding: 60px 40px; text-align: center; }

.complete-icon {
    width: 72px; height: 72px;
    background: var(--color-green-soft);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    color: var(--color-green);
    font-size: 1.5rem;
}

.complete-message h2 { font-size: 1.4rem; margin-bottom: 16px; font-weight: 700; }

.complete-message p {
    color: var(--color-ink-muted);
    margin-bottom: 36px;
    line-height: 1.9;
    font-size: 0.92rem;
}

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-ink);
    color: rgba(255, 255, 255, 0.45);
    padding: 64px 0 28px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-logo .logo-main {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    color: #fff;
}

.footer-logo .logo-sub {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-main);
    margin-left: 10px;
    font-weight: 500;
}

.footer-address,
.footer-email { font-size: 0.8rem; margin-top: 12px; line-height: 1.8; }

.footer-email a { color: rgba(255, 255, 255, 0.45); transition: color 0.3s var(--ease); }
.footer-email a:hover { color: var(--color-main); }

.footer-nav ul { display: flex; gap: 24px; }

.footer-nav a { color: rgba(255, 255, 255, 0.45); font-size: 0.8rem; transition: color 0.3s var(--ease); }
.footer-nav a:hover { color: var(--color-main); }

.footer-copyright {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: rgba(255, 255, 255, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 28px;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .hamburger { display: block; }

    .site-nav {
        position: fixed;
        top: 0; right: -100%;
        width: 85%; max-width: 360px;
        height: 100vh;
        background: var(--color-surface);
        padding: 100px 28px 28px;
        transition: right 0.5s var(--ease);
        z-index: 1000;
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
    }

    .site-nav.is-open { right: 0; }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
    }

    .nav-list li { width: 100%; }

    .nav-list a {
        display: block;
        padding: 14px 16px;
        font-size: 1rem;
        color: var(--color-ink) !important;
        border-radius: var(--radius-md);
    }

    .nav-list a:hover,
    .nav-list a.active { background: var(--color-main-pale); }

    .nav-contact { margin-top: 16px; text-align: center; display: block; }

    .hero { padding: 60px 0 48px; }
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero h1 { font-size: 1.8rem; }
    .hero p { font-size: 0.92rem; }
    .hero-visual { order: -1; }
    .hero-visual svg { max-width: 300px; }
    .hero-actions { flex-direction: column; align-items: flex-start; }

    .service-grid { grid-template-columns: 1fr; gap: 12px; }

    .service-detail {
        grid-template-columns: 52px 1fr;
        gap: 16px;
        padding: 28px 24px;
    }
    .service-detail .icon { width: 52px; height: 52px; }

    .news-item { grid-template-columns: 1fr; gap: 8px; padding: 16px; }

    .footer-inner { flex-direction: column; gap: 28px; }
    .footer-nav ul { flex-wrap: wrap; gap: 12px; }

    .section { padding: 72px 0; }
    .page-header { padding: 48px 0 36px; }
    .page-header h1 { font-size: 1.5rem; }

    .form-actions .btn + .btn { margin-left: 0; margin-top: 12px; }
    .confirm-table th { width: 120px; }
    .contact-form { padding: 32px 20px; }
    .ceo-message { padding: 32px 24px; }
    .cta-inner { padding: 48px 28px; border-radius: var(--radius-lg); }
}

@media (max-width: 480px) {
    .about-table th, .about-table td { display: block; width: 100%; }
    .about-table th { border-bottom: none; padding-bottom: 4px; }
    .about-table td { padding-top: 4px; }
    .confirm-table th, .confirm-table td { display: block; width: 100%; }
    .confirm-table th { border-bottom: none; padding-bottom: 4px; }
    .confirm-table td { padding-top: 4px; }
    .hero h1 { font-size: 1.5rem; }
}

/* ---------- Overlay ---------- */
.nav-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.4);
    z-index: 999;
    opacity: 0;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: opacity 0.4s var(--ease);
}

.nav-overlay.is-visible { display: block; opacity: 1; }