:root {
    --bg: #ffffff;
    --bg-soft: #f7f7f7;
    --bg-sunken: #efefef;

    --blue: #ffbf00;
    --blue-light: #ffcc33;
    --blue-deep: #cc9900;
    --blue-glow: rgba(255, 191, 0, 0.18);

    --glass: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(100, 65, 0, 0.1);
    --glass-hover: rgba(255, 255, 255, 0.95);

    --ink: #241b00;
    --text-muted: #664d00;
    --text-dim: #8a6400;
    --accent: #7a4d00;

    --shadow-sm: 0 1px 4px rgba(36, 27, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(36, 27, 0, 0.1);
    --shadow-lg: 0 12px 40px rgba(36, 27, 0, 0.12);
    --shadow-glow: 0 4px 24px rgba(255, 191, 0, 0.28);

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 22px;
    --ctrl-h: 2.25rem;

    --font-sans: "Segoe UI", system-ui, -apple-system, sans-serif;
    --font-display: "Segoe UI", system-ui, -apple-system, sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--ink);
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 16px;
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Nav - Global */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    height: 4rem;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    animation: fadeDown 0.4s ease both;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
}

.logo-mark {
    width: 32px;
    height: 32px;
    background: var(--blue);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.04em;
    flex-shrink: 0;
    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;
}
.logo-mark:hover {
    transform: scale(1.06);
    box-shadow: var(--shadow-glow);
}

.logo-text {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--ink);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-tag {
    font-family: var(--font-sans);
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: var(--bg-soft);
}

/* Nav Icon Button */
.btn-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    height: var(--ctrl-h);
    width: var(--ctrl-h);
    padding: 0;
    background: var(--blue);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition:
        background 0.18s,
        box-shadow 0.18s,
        transform 0.12s;
}
.btn-nav:hover {
    background: var(--blue-light);
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}
.btn-nav:active {
    transform: translateY(0);
}

.btn-icon {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}
.btn-label {
    display: inline;
}

/* Sections - Global */
section {
    position: relative;
    z-index: 1;
    padding: 5rem 5%;
}

/* Hero */
.hero {
    border-bottom: 1px solid var(--glass-border);
}

.hero-inner {
    animation: fadeUp 0.6s 0.1s ease both;
    text-align: center;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 5.5vw, 5rem);
    font-weight: 400;
    line-height: 1.08;
    letter-spacing: -0.01em;
    margin-bottom: 1.5rem;
    color: var(--ink);
}

.hero h1 .accent {
    color: var(--accent);
    font-style: italic;
}

.hero p {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-weight: 400;
    line-height: 1.8;
}

.hero-actions {
    gap: 0.75rem;
    flex-wrap: wrap;
    align-items: center;
}

/* Button - Primary */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.6rem;
    background: var(--blue);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border: none;
    border-radius: var(--radius-sm);
    text-decoration: none;
    cursor: pointer;
    transition:
        background 0.18s,
        box-shadow 0.18s,
        transform 0.12s;
}
.btn-primary:hover {
    background: var(--blue-light);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}
.btn-primary:active {
    transform: translateY(0);
    box-shadow: none;
}
.btn-primary .arrow {
    transition: transform 0.18s;
}
.btn-primary:hover .arrow {
    transform: translateX(4px);
}

/* Button - Ghost */
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.6rem;
    background: transparent;
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--glass-border);
    text-decoration: none;
    cursor: pointer;
    transition:
        background 0.18s,
        border-color 0.18s,
        box-shadow 0.18s;
}
.btn-ghost:hover {
    background: var(--bg-soft);
    border-color: var(--blue-deep);
    box-shadow: var(--shadow-sm);
}

/* Services Section */
.services {
    padding: 5rem 0;
    border-bottom: 1px solid var(--glass-border);
    background: var(--bg-soft);
}

.services-header {
    padding: 0 5%;
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
}

.services-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.5vw, 2.2rem);
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--ink);
}

.scroll-hint {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    white-space: nowrap;
}

/* Scroll Track */
.scroll-track {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0.5rem 5% 1.5rem;
    cursor: grab;
    scrollbar-width: thin;
    scrollbar-color: var(--blue-deep) transparent;
}
.scroll-track:active {
    cursor: grabbing;
}
.scroll-track::-webkit-scrollbar {
    height: 2px;
}
.scroll-track::-webkit-scrollbar-track {
    background: transparent;
}
.scroll-track::-webkit-scrollbar-thumb {
    background: var(--blue-deep);
    border-radius: 2px;
}

/* Cards */
.card {
    flex: 0 0 300px;
    scroll-snap-align: start;
    background: var(--bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.75rem;
    transition:
        border-color 0.25s,
        transform 0.25s,
        box-shadow 0.25s;
    animation: fadeUp 0.5s ease both;
    position: relative;
    overflow: hidden;
}
.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--blue);
    opacity: 0;
    transition: opacity 0.25s;
}
.card:hover {
    border-color: rgba(153, 92, 0, 0.22);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.card:hover::before {
    opacity: 1;
}

.card:nth-child(1) {
    animation-delay: 0.05s;
}
.card:nth-child(2) {
    animation-delay: 0.12s;
}
.card:nth-child(3) {
    animation-delay: 0.19s;
}
.card:nth-child(4) {
    animation-delay: 0.26s;
}

.card-num {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-dim);
    letter-spacing: 0.12em;
    margin-bottom: 1.25rem;
}

.card h3 {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 0.6rem;
    color: var(--ink);
    line-height: 1.3;
}

.card p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.75;
    font-weight: 400;
}

.card-tag {
    display: inline-block;
    margin-top: 1.5rem;
    font-family: var(--font-sans);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--accent);
    text-transform: uppercase;
}

.scroll-wrap {
    position: relative;
}

/* CTA */
.cta-section {
    border-bottom: 1px solid var(--glass-border);
}

.cta-card {
    background: var(--bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 4rem;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
    box-shadow: var(--shadow-md);
    animation: fadeUp 0.6s ease both;
}

.cta-card h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 400;
    letter-spacing: -0.01em;
    line-height: 1.15;
    margin-bottom: 1rem;
    color: var(--ink);
}
.cta-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-weight: 400;
    line-height: 1.8;
}
.cta-pair {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
footer {
    background: var(--bg-soft);
    border-top: 1px solid var(--glass-border);
    padding: 3.5rem 5% 2rem;
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 4rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 1.75rem;
}

.footer-brand p {
    margin-top: 0.875rem;
    font-size: 0.825rem;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 320px;
    font-weight: 400;
}

.footer-links h4 {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 1rem;
}
.footer-links ul {
    list-style: none;
}
.footer-links li {
    margin-bottom: 0.5rem;
}
.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    transition: color 0.18s;
}
.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.68rem;
    color: var(--text-dim);
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* 404 Page */
body.page-404 {
    display: flex;
    flex-direction: column;
}

.not-found {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5rem 5%;
    animation: fadeUp 0.6s 0.1s ease both;
}

.not-found-inner {
    max-width: 560px;
    width: 100%;
}

.error-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--bg-sunken);
    border: 1px solid rgba(122, 77, 0, 0.2);
    border-radius: 999px;
    padding: 0.3rem 0.9rem;
    margin-bottom: 2rem;
}
.error-badge::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--blue);
    outline: 1.5px solid rgba(122, 77, 0, 0.3);
    flex-shrink: 0;
}

.not-found-headline {
    font-family: var(--font-display);
    font-size: clamp(5rem, 18vw, 9rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--ink);
    margin-bottom: 1.5rem;
}
.not-found-headline span {
    color: var(--accent);
    font-style: italic;
}

.not-found-subheading {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 0.75rem;
}

.not-found-description {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 400px;
    margin-bottom: 2.5rem;
}

.not-found-divider {
    width: 40px;
    height: 2px;
    background: var(--blue-deep);
    border-radius: 2px;
    margin: 2rem 0;
    opacity: 0.4;
}

.suggestion-label {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 0.75rem;
}

.suggestion-links {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.suggestion-link {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.3rem 0.85rem;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: var(--bg-soft);
    transition:
        color 0.18s,
        border-color 0.18s,
        background 0.18s;
}
.suggestion-link:hover {
    color: var(--accent);
    border-color: rgba(122, 77, 0, 0.25);
    background: var(--bg-sunken);
}

/*Language Select*/
.nav-select--globe {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.nav-select--globe select {
    appearance: none;
    -webkit-appearance: none;
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    height: var(--ctrl-h);
    padding: 0 2.2rem 0 2.4rem;
    background: var(--bg-soft);
    color: var(--ink);
    border: 1.5px solid var(--glass-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition:
        border-color 0.18s,
        box-shadow 0.18s;
}
.nav-select--globe select:hover {
    border-color: var(--blue-deep);
    box-shadow: 0 2px 12px rgba(255, 191, 0, 0.2);
}
.nav-select--globe select:focus {
    outline: none;
    border-color: var(--blue-deep);
    box-shadow: 0 0 0 3px var(--blue-glow);
}

.nav-globe {
    position: absolute;
    left: 0.75rem;
    width: 15px;
    height: 15px;
    color: var(--text-dim);
    pointer-events: none;
}

.nav-select--globe select {
    color: transparent;
    padding: 0;
    width: var(--ctrl-h);
    height: var(--ctrl-h);
    overflow: hidden;
}
.nav-globe {
    width: 11px;
    height: 15px;
    left: 50%;
    transform: translateX(-50%);
}
.nav-select--globe::after {
    display: none;
}

/* Animations */
@keyframes fadeDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .card {
        flex: 0 0 270px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
    .cta-card {
        padding: 2.5rem 1.5rem;
    }
    .btn-label {
        display: none;
    }
    .hero {
        padding-top: 5rem;
        padding-bottom: 4rem;
    }

    .hero-inner {
        max-width: 760px;
        text-align: left;
    }

    .hero p {
        max-width: 480px;
    }

    .hero-actions {
        display: flex;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        letter-spacing: -0.02em;
    }
    .not-found-headline {
        letter-spacing: -0.04em;
    }
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0a0a0a;
        --bg-soft: #141414;
        --bg-sunken: #1f1f1f;

        --blue: #ffbf00;
        --blue-light: #ffcc33;
        --blue-deep: #cc9900;
        --blue-glow: rgba(255, 191, 0, 0.15);

        --glass: rgba(10, 10, 10, 0.75);
        --glass-border: rgba(255, 191, 0, 0.12);
        --glass-hover: rgba(10, 10, 10, 0.95);

        --ink: #fff3cc;
        --text-muted: #d4a843;
        --text-dim: #9a7a30;
        --accent: #ffcc55;

        --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
        --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
        --shadow-glow: 0 4px 24px rgba(255, 191, 0, 0.22);
    }

    nav {
        background: rgba(10, 10, 10, 0.88);
    }

    .card {
        background: var(--bg-soft);
    }
    .cta-card {
        background: var(--bg-soft);
    }

    .btn-ghost {
        background: transparent;
    }
    .btn-ghost:hover {
        background: var(--bg-soft);
    }

    .nav-select--globe select {
        background: var(--bg-soft);
    }
}