/* ============================================================
   LegalDebug.com - Styles
   Muji Functional Serenity | Sunset-Warm Palette | Z-Pattern
   ============================================================ */

/* --- Custom Properties --- */
:root {
    /* Palette */
    --color-bg-primary: #F7F0E8;
    --color-bg-accent: #EDE3D5;
    --color-marble-vein: #F2E8DA;
    --color-text-primary: #3B2314;
    --color-text-secondary: #4A3F35;
    --color-accent-primary: #C4754E;
    --color-accent-secondary: #8B6914;
    --color-accent-tertiary: #B85C38;
    --color-subtle-divider: #A0725A;
    --color-deep-ground: #5C3A1E;
    --color-nature-accent: #7A8B6A;

    /* Typography */
    --font-heading: 'Barlow Condensed', sans-serif;
    --font-subheading: 'Barlow Semi Condensed', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'DM Mono', monospace;

    /* Animation */
    --reveal-duration: 600ms;
    --reveal-delay-base: 200ms;
    --transition-ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);

    /* Layout */
    --max-content-width: 1400px;
    --column-gap: clamp(1rem, 2vw, 2.5rem);
}

/* --- 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;
    font-size: clamp(1rem, 1.1vw, 1.15rem);
    line-height: 1.8;
    letter-spacing: 0.005em;
    color: var(--color-text-secondary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* --- SVG Filters (Hidden) --- */
.svg-filters {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* --- Scroll Progress Indicator --- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 100%;
    background-color: var(--color-accent-primary);
    transform: scaleX(0);
    transform-origin: left;
    z-index: 1000;
    pointer-events: none;
}

/* --- Marble Background Layers --- */
.marble-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.marble-light {
    background:
        repeating-linear-gradient(160deg, transparent 0%, transparent 48%, rgba(196,117,78,0.06) 49%, rgba(196,117,78,0.04) 51%, transparent 52%, transparent 100%),
        repeating-linear-gradient(200deg, transparent 0%, transparent 47%, rgba(196,117,78,0.04) 48.5%, rgba(196,117,78,0.03) 50.5%, transparent 52%, transparent 100%),
        repeating-linear-gradient(125deg, transparent 0%, transparent 49%, rgba(196,117,78,0.05) 49.5%, rgba(196,117,78,0.03) 51%, transparent 51.5%, transparent 100%),
        linear-gradient(135deg, #F7F0E8 0%, #EDE3D5 40%, #F2E8DA 70%, #F7F0E8 100%);
}

.marble-mid {
    background:
        repeating-linear-gradient(160deg, transparent 0%, transparent 47%, rgba(196,117,78,0.07) 48.5%, rgba(196,117,78,0.05) 51%, transparent 52%, transparent 100%),
        repeating-linear-gradient(200deg, transparent 0%, transparent 46%, rgba(196,117,78,0.05) 48%, rgba(196,117,78,0.04) 51%, transparent 52.5%, transparent 100%),
        repeating-linear-gradient(125deg, transparent 0%, transparent 48%, rgba(196,117,78,0.06) 49%, rgba(196,117,78,0.04) 51.5%, transparent 52%, transparent 100%),
        linear-gradient(135deg, #F7F0E8 0%, #EDE3D5 35%, #F2E8DA 65%, #EDE3D5 100%);
}

.marble-mid-warm {
    background:
        repeating-linear-gradient(155deg, transparent 0%, transparent 47%, rgba(196,117,78,0.08) 48.5%, rgba(196,117,78,0.05) 51%, transparent 52%, transparent 100%),
        repeating-linear-gradient(195deg, transparent 0%, transparent 46%, rgba(184,92,56,0.05) 48%, rgba(184,92,56,0.03) 51%, transparent 52.5%, transparent 100%),
        repeating-linear-gradient(130deg, transparent 0%, transparent 48%, rgba(196,117,78,0.07) 49%, rgba(196,117,78,0.04) 51.5%, transparent 52%, transparent 100%),
        linear-gradient(135deg, #F2E8DA 0%, #EDE3D5 40%, #F2E8DA 65%, #EDE3D5 100%);
}

.marble-warm {
    background:
        repeating-linear-gradient(160deg, transparent 0%, transparent 46%, rgba(196,117,78,0.09) 48%, rgba(196,117,78,0.06) 51%, transparent 52.5%, transparent 100%),
        repeating-linear-gradient(200deg, transparent 0%, transparent 45%, rgba(184,92,56,0.06) 47.5%, rgba(184,92,56,0.04) 51%, transparent 53%, transparent 100%),
        repeating-linear-gradient(125deg, transparent 0%, transparent 47%, rgba(196,117,78,0.08) 49%, rgba(196,117,78,0.05) 51.5%, transparent 52.5%, transparent 100%),
        linear-gradient(135deg, #EDE3D5 0%, #F2E8DA 30%, #EDE3D5 60%, #F2E8DA 100%);
}

.marble-deep {
    background:
        repeating-linear-gradient(160deg, transparent 0%, transparent 45%, rgba(196,117,78,0.10) 47.5%, rgba(196,117,78,0.07) 51%, transparent 53%, transparent 100%),
        repeating-linear-gradient(200deg, transparent 0%, transparent 44%, rgba(184,92,56,0.07) 47%, rgba(184,92,56,0.05) 51%, transparent 53.5%, transparent 100%),
        repeating-linear-gradient(125deg, transparent 0%, transparent 46%, rgba(160,114,90,0.08) 48.5%, rgba(160,114,90,0.05) 51.5%, transparent 53%, transparent 100%),
        linear-gradient(135deg, #EDE3D5 0%, #EDE3D5 35%, #F2E8DA 60%, #EDE3D5 100%);
}

/* --- Navigation --- */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.25rem 0;
    transition: border-color 400ms ease;
    border-bottom: 1px solid transparent;
}

.main-nav.scrolled {
    border-bottom-color: rgba(196, 117, 78, 0.4);
    background-color: rgba(247, 240, 232, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.nav-inner {
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 3rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: clamp(1.5rem, 3vw, 2.5rem);
}

.nav-link {
    font-family: var(--font-subheading);
    font-weight: 500;
    font-size: clamp(0.85rem, 1vw, 1rem);
    letter-spacing: 0.06em;
    color: var(--color-text-secondary);
    text-decoration: none;
    position: relative;
    transition: letter-spacing 300ms var(--transition-ease), color 300ms ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent-primary);
    transition: width 400ms var(--transition-ease);
}

.nav-link:hover {
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
}

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

.nav-menu-toggle {
    display: none;
    font-family: var(--font-subheading);
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.06em;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

/* --- Mobile Menu Overlay --- */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(247, 240, 232, 0.98);
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 400ms ease, visibility 400ms ease;
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-overlay-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
}

.mobile-link {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    text-decoration: none;
    position: relative;
    transition: color 300ms ease;
}

.mobile-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background-color: var(--color-accent-primary);
    transition: width 400ms var(--transition-ease);
}

.mobile-link:hover {
    color: var(--color-accent-primary);
}

.mobile-link:hover::after {
    width: 100%;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 2rem;
}

.hero-logotype {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: clamp(3rem, 8vw, 7rem);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    line-height: 1.1;
}

.hero-tagline {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    margin-top: 1.25rem;
    opacity: 0;
    transform: translateY(12px);
    animation: tagline-reveal 600ms ease-out 600ms forwards;
}

@keyframes tagline-reveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Amber Column */
.amber-column {
    position: absolute;
    right: 0;
    top: 0;
    width: 80px;
    height: 100%;
    background: linear-gradient(to bottom, rgba(196,117,78,0), rgba(196,117,78,0.15), rgba(196,117,78,0));
    z-index: 1;
    opacity: 0;
    animation: amber-fade 2s ease-in-out 300ms forwards;
}

@keyframes amber-fade {
    to {
        opacity: 1;
    }
}

/* Ginkgo Leaf */
.ginkgo-leaf-container {
    position: absolute;
    z-index: 1;
}

.hero-leaf {
    top: 20%;
    left: 15%;
    width: 50px;
    opacity: 0.5;
}

.connector-leaf {
    top: 30%;
    left: 35%;
    width: 40px;
    opacity: 0.4;
}

.connector-leaf-2 {
    top: 25%;
    right: 25%;
    left: auto;
    width: 45px;
    opacity: 0.45;
}

.ginkgo-leaf {
    width: 100%;
    height: auto;
    animation: spin 120s linear infinite, float 8s ease-in-out infinite alternate;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes float {
    from { transform: translateY(0); }
    to { transform: translateY(30px); }
}

/* --- Z-Connector Sections (Ma intervals) --- */
.z-connector {
    position: relative;
    height: clamp(30vh, 35vh, 40vh);
    overflow: hidden;
}

.connector-rule {
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 1px;
    background-color: rgba(196, 117, 78, 0.3);
    transform: translateY(-50%);
}

/* --- Z-Sections --- */
.z-section {
    position: relative;
    padding: clamp(4rem, 8vh, 8rem) 0;
    overflow: hidden;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.z-section-grid {
    position: relative;
    z-index: 2;
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 3rem);
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    column-gap: var(--column-gap);
    align-items: center;
    width: 100%;
}

/* Right-aligned content (Z-right) */
.z-right .z-left-panel {
    grid-column: 1 / 5;
    display: flex;
    align-items: center;
    justify-content: center;
}

.z-right .z-right-content {
    grid-column: 6 / 13;
}

/* Left-aligned content (Z-left) */
.z-left .z-left-content {
    grid-column: 1 / 8;
}

.z-left .z-right-panel {
    grid-column: 9 / 13;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- Section Content --- */
.section-meta {
    display: block;
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: clamp(0.75rem, 0.85vw, 0.875rem);
    letter-spacing: 0.02em;
    color: var(--color-subtle-divider);
    margin-bottom: 1.5rem;
}

.section-heading {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    letter-spacing: 0.04em;
    color: var(--color-text-primary);
    line-height: 1.2;
    margin-bottom: 1.75rem;
}

.section-body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(1rem, 1.1vw, 1.15rem);
    line-height: 1.8;
    letter-spacing: 0.005em;
    color: var(--color-text-secondary);
    max-width: 65ch;
    margin-bottom: 1.5rem;
}

.section-body:last-child {
    margin-bottom: 0;
}

/* --- Nature Motifs --- */
.enso-circle {
    width: clamp(120px, 15vw, 200px);
    height: auto;
}

.enso-circle circle {
    transition: stroke-dashoffset 1.5s ease-in-out;
}

.enso-circle.drawn circle {
    stroke-dashoffset: 0;
}

.enso-small {
    width: clamp(90px, 12vw, 160px);
}

.branch-silhouette {
    width: clamp(150px, 20vw, 280px);
    height: auto;
    opacity: 0;
    clip-path: inset(0 100% 0 0);
    transition: clip-path 1.2s ease-out, opacity 0.8s ease-out;
}

.branch-silhouette.revealed {
    clip-path: inset(0 0% 0 0);
    opacity: 1;
}

.branch-vertical {
    width: clamp(100px, 12vw, 180px);
}

/* Seed Pod Pattern */
.seed-pods {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0.08;
    background:
        radial-gradient(circle 2px at 20% 30%, var(--color-subtle-divider) 50%, transparent 50%),
        radial-gradient(circle 1.5px at 60% 45%, var(--color-subtle-divider) 50%, transparent 50%),
        radial-gradient(circle 2px at 80% 25%, var(--color-subtle-divider) 50%, transparent 50%),
        radial-gradient(circle 1.5px at 35% 70%, var(--color-subtle-divider) 50%, transparent 50%),
        radial-gradient(circle 2px at 75% 65%, var(--color-subtle-divider) 50%, transparent 50%);
    pointer-events: none;
}

/* --- Reveal Animations --- */
.reveal-section .section-meta,
.reveal-section .section-heading,
.reveal-section .section-body {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--reveal-duration) ease-out, transform var(--reveal-duration) ease-out;
}

.reveal-section.visible .section-meta {
    opacity: 1;
    transform: translateY(0);
    transition-delay: var(--reveal-delay-base);
}

.reveal-section.visible .section-heading {
    opacity: 1;
    transform: translateY(0);
    transition-delay: calc(var(--reveal-delay-base) + 150ms);
}

.reveal-section.visible .section-body {
    opacity: 1;
    transform: translateY(0);
    transition-delay: calc(var(--reveal-delay-base) + 350ms);
}

.reveal-section .z-nature-panel {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 700ms ease-out, transform 700ms ease-out;
    transition-delay: 600ms;
}

.reveal-section.visible .z-nature-panel {
    opacity: 1;
    transform: scale(1);
}

/* --- Footer --- */
.site-footer {
    position: relative;
    background-color: var(--color-deep-ground);
    padding: clamp(3rem, 5vh, 5rem) 0;
}

.footer-inner {
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 3rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.3rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-bg-primary);
}

.footer-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-text {
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 0.8rem;
    letter-spacing: 0.02em;
    color: var(--color-subtle-divider);
}

.footer-divider {
    color: var(--color-subtle-divider);
    opacity: 0.4;
}

.footer-copyright {
    color: rgba(160, 114, 90, 0.7);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-menu-toggle {
        display: block;
    }

    /* Z-sections collapse to single column */
    .z-section-grid {
        display: flex;
        flex-direction: column;
        gap: 2.5rem;
    }

    .z-right .z-left-panel,
    .z-left .z-right-panel {
        order: 2;
    }

    .z-right .z-right-content,
    .z-left .z-left-content {
        order: 1;
    }

    .z-nature-panel {
        max-width: 160px;
    }

    /* Amber column becomes horizontal band */
    .amber-column {
        width: 100%;
        height: 60px;
        right: auto;
        bottom: 0;
        top: auto;
        background: linear-gradient(to right, rgba(196,117,78,0), rgba(196,117,78,0.12), rgba(196,117,78,0));
    }

    /* Simplify leaf animations */
    .ginkgo-leaf {
        animation: none;
        opacity: 0.4;
    }

    .hero-leaf {
        top: 15%;
        left: 10%;
        width: 35px;
    }

    .connector-leaf,
    .connector-leaf-2 {
        display: none;
    }

    /* Reduce connector height */
    .z-connector {
        height: 20vh;
    }

    /* Footer stacks */
    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.25rem;
    }

    .footer-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .footer-divider {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-logotype {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }

    .section-heading {
        font-size: clamp(1.3rem, 5vw, 1.8rem);
    }

    .z-connector {
        height: 15vh;
    }
}