/* =============================================
   completengine.com - Scandinavian Sunset
   ============================================= */

/* CSS Custom Properties */
:root {
    /* Palette */
    --color-birch-white: #faf5ef;
    --color-dusk-linen: #f0e6d8;
    --color-ember-orange: #d4854a;
    --color-rose-dusk: #c47a6b;
    --color-burnt-sienna: #a0603c;
    --color-charcoal-bark: #2c2420;
    --color-warm-graphite: #5a4e44;
    --color-soft-driftwood: #9a8a78;
    --color-apricot-glow: #f2c17d;
    --color-rose-horizon: #e89a7a;
    --color-lavender-dusk: #c4a0b4;
    --color-lavender-end: #b8a0c0;
    --color-glass-border: rgba(200, 160, 120, 0.3);
    --color-glass-fill: rgba(255, 248, 240, 0.35);

    /* Typography */
    --font-display: 'Libre Baskerville', serif;
    --font-body: 'Karla', sans-serif;
    --font-mono: 'DM Mono', monospace;

    /* Sizes */
    --heading-hero: clamp(2.8rem, 7vw, 6rem);
    --heading-section: clamp(1.6rem, 3.5vw, 2.8rem);
    --heading-card: clamp(1.2rem, 2.5vw, 1.8rem);
    --body-size: clamp(1rem, 1.1vw, 1.15rem);
    --nav-size: 0.85rem;
    --mono-size: 0.75rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: var(--body-size);
    line-height: 1.7;
    color: var(--color-warm-graphite);
    background-color: var(--color-birch-white);
    overflow: hidden;
}

/* Hidden SVG defs */
.svg-defs {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* =============================================
   Navigation
   ============================================= */
.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background: rgba(250, 245, 239, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-bottom-color 300ms ease;
    z-index: 100;
}

.nav-bar.scrolled {
    border-bottom-color: rgba(200, 160, 120, 0.2);
}

.nav-logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-charcoal-bark);
    letter-spacing: -0.02em;
}

.nav-menu-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-charcoal-bark);
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* =============================================
   Scroll Container
   ============================================= */
.scroll-container {
    height: 100vh;
    overflow-y: auto;
    scroll-snap-type: y mandatory;
}

/* =============================================
   Hero Section Base
   ============================================= */
.hero-section {
    min-height: 100vh;
    width: 100%;
    scroll-snap-align: start;
    position: relative;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-rows: 1fr auto 1fr;
    grid-template-columns: minmax(2rem, 1fr) minmax(auto, 72ch) minmax(2rem, 1fr);
    min-height: 100vh;
    align-items: center;
}

.hero-grid > * {
    grid-column: 2;
}

/* =============================================
   Horizon Section (Hero with Gradient)
   ============================================= */
.horizon-section {
    background: linear-gradient(135deg, #f2c17d 0%, #e89a7a 40%, #c4a0b4 80%, #b8a0c0 100%);
}

.frost-overlay {
    position: absolute;
    inset: 0;
    filter: url(#frostGrain);
    pointer-events: none;
    z-index: 1;
}

.horizon-content {
    grid-row: 2;
    text-align: center;
    position: relative;
    z-index: 2;
}

.title-lines-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.title-line {
    width: 100%;
    height: 1px;
    background-color: rgba(44, 36, 32, 0.4);
    transform: scaleX(0);
    transition: transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.title-line.animate {
    transform: scaleX(1);
}

.site-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--heading-hero);
    color: var(--color-charcoal-bark);
    letter-spacing: -0.02em;
    line-height: 1.15;
    display: inline-block;
}

.site-title .letter {
    display: inline-block;
    opacity: 0;
    animation: letterFadeIn 80ms ease forwards;
}

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

.hero-lower-third {
    grid-row: 3;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 2rem;
    position: relative;
    z-index: 2;
}

.glass-card-hero {
    opacity: 0;
    transform: translateY(30px);
}

.glass-card-hero.animate {
    animation: cardFadeUp 700ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

/* =============================================
   Glassmorphic Cards
   ============================================= */
.glass-card {
    position: relative;
    background: var(--color-glass-fill);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    border: 1px solid var(--color-glass-border);
    border-radius: 2px;
    padding: 2rem 2.5rem;
    max-width: 420px;
    transition: backdrop-filter 300ms ease, -webkit-backdrop-filter 300ms ease, border-color 400ms ease;
}

.glass-card:hover {
    backdrop-filter: blur(28px) saturate(1.2);
    -webkit-backdrop-filter: blur(28px) saturate(1.2);
}

/* Corner Accent */
.glass-card-corner {
    position: absolute;
    top: -1px;
    left: -1px;
    width: 8px;
    height: 8px;
    border-top: 1px solid rgba(212, 133, 74, 0.5);
    border-left: 1px solid rgba(212, 133, 74, 0.5);
    transition: transform 300ms ease;
    transform-origin: top left;
    z-index: 2;
}

.glass-card:hover .glass-card-corner {
    transform: rotate(90deg);
}

/* Ambient Glow */
.glass-card-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 140%;
    height: 140%;
    transform: translate(-50%, -50%);
    background: radial-gradient(ellipse at center, rgba(230, 140, 70, 0.06) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
    transition: width 300ms ease, height 300ms ease;
}

.glass-card:hover .glass-card-glow {
    width: 168%;
    height: 168%;
}

/* Border Draw Animation */
.glass-card-border-draw {
    position: absolute;
    inset: -1px;
    border: 1px solid transparent;
    border-radius: 2px;
    pointer-events: none;
    z-index: 1;
}

.glass-card:hover .glass-card-border-draw {
    animation: borderDrawCW 400ms ease forwards;
}

@keyframes borderDrawCW {
    0% {
        border-color: transparent;
        clip-path: inset(0 100% 100% 0);
    }
    25% {
        clip-path: inset(0 0 100% 0);
    }
    50% {
        clip-path: inset(0 0 0 0);
    }
    75% {
        clip-path: inset(0 0 0 0);
    }
    100% {
        border-color: rgba(212, 133, 74, 0.7);
        clip-path: inset(0 0 0 0);
    }
}

.glass-card-text {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: var(--body-size);
    line-height: 1.7;
    color: var(--color-warm-graphite);
    text-align: center;
}

.glass-card-heading {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--heading-card);
    color: var(--color-charcoal-bark);
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-bottom: 0.75rem;
}

.glass-card-line {
    width: 40px;
    height: 1px;
    background-color: var(--color-ember-orange);
    opacity: 0.5;
    margin-bottom: 1rem;
}

.glass-card-description {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: var(--body-size);
    line-height: 1.7;
    color: var(--color-warm-graphite);
    margin-bottom: 1.25rem;
}

.glass-card-meta {
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: var(--mono-size);
    letter-spacing: 0.05em;
    color: #c48a5a;
    opacity: 0.7;
}

/* Chevron Pulse */
.chevron-pulse {
    display: flex;
    justify-content: center;
    margin-top: 1.25rem;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

/* =============================================
   Clearing Section
   ============================================= */
.clearing-section {
    background-color: var(--color-birch-white);
    position: relative;
}

.paper-texture {
    position: absolute;
    inset: 0;
    filter: url(#paperGrain);
    pointer-events: none;
    z-index: 0;
}

.clearing-grid {
    place-items: center;
}

.clearing-content {
    grid-row: 2;
    text-align: center;
    max-width: 60ch;
    position: relative;
    z-index: 1;
}

.section-heading {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--heading-section);
    color: var(--color-charcoal-bark);
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.section-heading::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-ember-orange);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 600ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.section-heading.heading-visible::after {
    transform: scaleX(1);
}

.clearing-text {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: var(--body-size);
    line-height: 1.7;
    color: var(--color-warm-graphite);
}

/* Alternate clearing with gradient wash */
.clearing-section-alt {
    position: relative;
}

.gradient-wash {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #f2c17d 0%, #e89a7a 40%, #c4a0b4 80%, #b8a0c0 100%);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

/* =============================================
   Object Section
   ============================================= */
.object-section {
    background-color: var(--color-dusk-linen);
    position: relative;
}

.object-section::before {
    content: '';
    position: absolute;
    inset: 0;
    filter: url(#paperGrain);
    pointer-events: none;
    z-index: 0;
}

.object-content {
    grid-row: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 1;
}

.object-content-paired {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 760px;
    width: 100%;
}

.glass-card-object {
    width: 360px;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.glass-card-paired {
    max-width: 360px;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* =============================================
   Corridor Section
   ============================================= */
.corridor-section {
    background-color: var(--color-birch-white);
    position: relative;
}

.corridor-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background-color: rgba(200, 160, 120, 0.25);
    z-index: 0;
}

.corridor-line-left {
    left: 25%;
}

.corridor-line-right {
    right: 25%;
}

.corridor-slash {
    position: absolute;
    width: 1px;
    height: 120px;
    background-color: rgba(212, 133, 74, 0.15);
    z-index: 0;
}

.corridor-slash-1 {
    top: 20%;
    left: 25%;
    transform: skewY(-4deg) rotate(45deg);
}

.corridor-slash-2 {
    top: 50%;
    right: 25%;
    transform: skewY(-4deg) rotate(-45deg);
}

.corridor-slash-3 {
    top: 70%;
    left: 25%;
    transform: skewY(-4deg) rotate(135deg);
}

.corridor-slash-4 {
    top: 30%;
    right: 25%;
    transform: skewY(-4deg) rotate(45deg);
}

.corridor-slash-5 {
    top: 60%;
    left: 25%;
    transform: skewY(-4deg) rotate(-45deg);
}

.corridor-content {
    grid-row: 2;
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 50ch;
    margin: 0 auto;
}

.corridor-text {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: var(--body-size);
    line-height: 1.7;
    color: var(--color-warm-graphite);
}

/* =============================================
   Final Horizon Section
   ============================================= */
.horizon-section-final .hero-content {
    grid-row: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
}

.glass-card-final {
    text-align: center;
    max-width: 420px;
}

.cta-link {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: var(--body-size);
    color: var(--color-charcoal-bark);
    text-decoration: none;
    display: inline-block;
    position: relative;
    margin-top: 0.5rem;
}

.cta-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-ember-orange);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 600ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.cta-link.heading-visible::after {
    transform: scaleX(1);
}

/* =============================================
   Chevron Dividers
   ============================================= */
.chevron-divider {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80px;
    background-color: var(--color-birch-white);
    scroll-snap-align: none;
}

/* =============================================
   Reveal Animations
   ============================================= */
.reveal-content {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 800ms cubic-bezier(0.16, 1, 0.3, 1), transform 800ms cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-content.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Cards within revealed content get extra delay */
.reveal-content .glass-card {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 700ms cubic-bezier(0.16, 1, 0.3, 1) 200ms, transform 700ms cubic-bezier(0.16, 1, 0.3, 1) 200ms, backdrop-filter 300ms ease, -webkit-backdrop-filter 300ms ease, border-color 400ms ease;
}

.reveal-content.revealed .glass-card {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================
   Reduced Motion
   ============================================= */
@media (prefers-reduced-motion: reduce) {
    .site-title .letter {
        opacity: 1;
        animation: none;
    }

    .title-line {
        transform: scaleX(1);
        transition: none;
    }

    .glass-card-hero {
        opacity: 1;
        transform: translateY(0);
        animation: none;
    }

    .reveal-content {
        opacity: 1;
        transform: translateY(0);
        transition: none;
    }

    .reveal-content .glass-card {
        opacity: 1;
        transform: translateY(0);
        transition: none;
    }

    .section-heading::after {
        transform: scaleX(1);
        transition: none;
    }

    .cta-link::after {
        transform: scaleX(1);
        transition: none;
    }

    .chevron-pulse {
        animation: none;
        opacity: 0.6;
    }

    .glass-card:hover .glass-card-border-draw {
        animation: none;
    }
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 768px) {
    .hero-grid {
        grid-template-columns: minmax(1.5rem, 1fr) minmax(auto, 90vw) minmax(1.5rem, 1fr);
    }

    .nav-bar {
        padding: 0 1.25rem;
    }

    .object-content-paired {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        justify-items: center;
    }

    .glass-card-paired {
        max-width: 420px;
    }

    .glass-card-object {
        width: 100%;
        max-width: 420px;
        min-height: auto;
    }

    .glass-card {
        padding: 1.5rem 2rem;
    }

    .corridor-line-left {
        left: 10%;
    }

    .corridor-line-right {
        right: 10%;
    }
}

@media (max-width: 480px) {
    .hero-grid {
        grid-template-columns: minmax(1rem, 1fr) minmax(auto, 95vw) minmax(1rem, 1fr);
    }

    .glass-card {
        padding: 1.25rem 1.5rem;
    }

    .clearing-content {
        max-width: 90vw;
    }

    .corridor-content {
        max-width: 85vw;
    }
}