/* ============================================================
   archetype.moe — Cinematic Design System
   A viewing experience in amber and shadow
   ============================================================ */

/* === Custom Properties === */
:root {
    --c-deep-umber: #2C2016;
    --c-charred-walnut: #1A150E;
    --c-warm-vellum: #F0E6D3;
    --c-amber-glow: #C4A265;
    --c-warm-stone: #B8A88A;
    --c-buckwheat-honey: #8A6B3E;
    --c-smoked-gold: #6B5A3A;
    --c-pale-honey: #E8D5B0;
    --c-burnt-sienna: #9C4A2C;
    --c-muted-amber: #8A7A5C;
    --t-dissolve: 1.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    --t-flare: 1.5s cubic-bezier(0.16, 1, 0.3, 1);
    --grain-opacity: 0.05;
    --letterbox-height: 4vh;
    --parallax-factor: 0.6;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background-color: var(--c-charred-walnut);
    color: var(--c-warm-vellum);
    font-family: 'Source Serif 4', 'Georgia', serif;
    font-size: 1.0625rem;
    line-height: 1.72;
    letter-spacing: 0.005em;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === Film Grain Overlay === */
#grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    pointer-events: none;
    opacity: var(--grain-opacity);
    mix-blend-mode: overlay;
}

#grain-overlay svg {
    width: 100%;
    height: 100%;
}

@keyframes grain-shift {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-2%, -3%); }
    50% { transform: translate(3%, 1%); }
    75% { transform: translate(-1%, 3%); }
    100% { transform: translate(2%, -2%); }
}

#grain-overlay {
    animation: grain-shift 0.12s steps(4) infinite;
}

/* === Letterbox Bars === */
.letterbox-bar {
    position: fixed;
    left: 0;
    width: 100vw;
    height: var(--letterbox-height);
    background-color: var(--c-charred-walnut);
    z-index: 9998;
    opacity: 0;
    transition: opacity 2s ease, height 1s ease;
}

.letterbox-bar.visible {
    opacity: 1;
}

#letterbox-top {
    top: 0;
}

#letterbox-bottom {
    bottom: 0;
}

/* === Vertical Rule (Rule of Thirds) === */
#vertical-rule {
    position: fixed;
    top: 0;
    left: 33.333%;
    width: 1px;
    height: 100vh;
    background-color: var(--c-amber-glow);
    opacity: 0.15;
    z-index: 10;
    pointer-events: none;
}

/* === Scene System === */
.scene {
    position: relative;
    width: 100vw;
    min-height: 100vh;
    overflow: hidden;
}

.scene-number {
    position: absolute;
    top: 50%;
    right: 1.5rem;
    transform: rotate(90deg) translateX(-50%);
    transform-origin: right center;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.625rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-warm-stone);
    opacity: 0.4;
    z-index: 50;
    white-space: nowrap;
}

/* === Scene Backgrounds === */
.scene-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    background-size: cover;
    background-position: center;
    filter: sepia(0.25) contrast(1.12) brightness(0.88) saturate(0.65);
    z-index: 1;
    will-change: transform;
}

/* Scene 01 - Wide shot - rain-glossed asphalt / urban geometry */
#scene-01-bg {
    background: linear-gradient(
        135deg,
        var(--c-charred-walnut) 0%,
        var(--c-deep-umber) 30%,
        #3a2a18 50%,
        var(--c-deep-umber) 70%,
        var(--c-charred-walnut) 100%
    );
}

/* Scene 02 - Medium shot - shadows and light */
#scene-02-bg {
    background: radial-gradient(
        ellipse at 40% 35%,
        var(--c-buckwheat-honey) 0%,
        var(--c-deep-umber) 40%,
        var(--c-charred-walnut) 80%
    );
    opacity: 0.5;
}

/* Scene 03 - Close-up - geometric shadows */
#scene-03-bg {
    background:
        linear-gradient(45deg, transparent 30%, rgba(138, 107, 62, 0.08) 30%, rgba(138, 107, 62, 0.08) 31%, transparent 31%),
        linear-gradient(45deg, transparent 50%, rgba(138, 107, 62, 0.05) 50%, rgba(138, 107, 62, 0.05) 51%, transparent 51%),
        linear-gradient(45deg, transparent 70%, rgba(138, 107, 62, 0.03) 70%, rgba(138, 107, 62, 0.03) 71%, transparent 71%),
        linear-gradient(180deg, var(--c-charred-walnut), var(--c-deep-umber));
}

/* Scene 04 - Wide shot - empty platform */
#scene-04-bg {
    background: linear-gradient(
        180deg,
        var(--c-charred-walnut) 0%,
        var(--c-deep-umber) 40%,
        var(--c-smoked-gold) 80%,
        var(--c-deep-umber) 100%
    );
    opacity: 0.4;
}

/* Scene 05 - Medium shot - corridor of light */
#scene-05-bg {
    background: radial-gradient(
        ellipse at 60% 50%,
        rgba(196, 162, 101, 0.15) 0%,
        var(--c-deep-umber) 50%,
        var(--c-charred-walnut) 100%
    );
}

/* Scene 06 - Close-up - depth and pattern */
#scene-06-bg {
    background:
        radial-gradient(circle at 30% 70%, rgba(156, 74, 44, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(196, 162, 101, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, var(--c-charred-walnut), var(--c-deep-umber));
}

/* === Scene Content Layouts === */
.scene-content {
    position: relative;
    z-index: 20;
    padding: 2rem;
}

/* Bottom third positioning (subtitle zone) */
.scene-content--bottom-third {
    display: grid;
    grid-template-rows: 2fr 1fr;
    min-height: 100vh;
    padding-bottom: calc(var(--letterbox-height) + 3rem);
}

.scene-content--bottom-third > * {
    grid-row: 2;
}

.scene-content--bottom-third .scene-title {
    grid-row: 2;
    align-self: start;
}

.scene-content--bottom-third .scene-subtitle {
    grid-row: 2;
}

.scene-content--bottom-third .scene-body {
    grid-row: 2;
    max-width: 55%;
    padding-left: 5%;
}

/* Rule of thirds positioning */
.scene-content--rule-of-thirds {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding-top: 33%;
    padding-left: 10%;
    max-width: 55vw;
}

/* Center positioning (title scene) */
.scene-content--center {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
}

/* Close-up overlay */
.scene-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50%;
    min-height: 40%;
    padding: 3rem 4rem;
    background: rgba(26, 21, 14, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 20;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

/* === Typography === */

/* Primary Display - Playfair Display 700 italic */
.title-main {
    font-family: 'Playfair Display', 'Georgia', serif;
    font-weight: 700;
    font-style: italic;
    font-size: clamp(3rem, 10vw, 8rem);
    letter-spacing: -0.02em;
    line-height: 1.05;
    color: var(--c-warm-vellum);
    opacity: 0;
    transition: opacity 3s ease;
}

.title-main.visible {
    opacity: 1;
}

.title-tagline {
    font-family: 'Cormorant Garamond', 'Georgia', serif;
    font-weight: 300;
    font-size: clamp(1.2rem, 3vw, 2.2rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-amber-glow);
    margin-top: 1.5rem;
    opacity: 0;
    transition: opacity 2s ease;
}

.title-tagline.visible {
    opacity: 1;
}

.scene-title {
    font-family: 'Playfair Display', 'Georgia', serif;
    font-weight: 700;
    font-style: italic;
    font-size: clamp(1.8rem, 4vw, 3.5rem);
    letter-spacing: -0.02em;
    line-height: 1.05;
    color: var(--c-warm-vellum);
    margin-bottom: 1rem;
}

/* Character spans for title animation */
.scene-title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scene-title.revealed .char {
    opacity: 1;
    transform: translateY(0);
}

/* Secondary Display - Cormorant Garamond 300 */
.scene-subtitle {
    font-family: 'Cormorant Garamond', 'Georgia', serif;
    font-weight: 300;
    font-size: clamp(1.2rem, 3vw, 2.2rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-amber-glow);
    margin-bottom: 1.5rem;
}

/* Body - Source Serif 4 */
.scene-body {
    font-family: 'Source Serif 4', 'Georgia', serif;
    font-weight: 400;
    font-size: 1.0625rem;
    line-height: 1.72;
    letter-spacing: 0.005em;
    color: var(--c-warm-stone);
    max-width: 38rem;
}

/* Accent Mono - IBM Plex Mono */
.scroll-indicator {
    position: absolute;
    bottom: calc(var(--letterbox-height) + 2rem);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    z-index: 50;
    opacity: 0;
    transition: opacity 1s ease;
}

.scroll-indicator.visible {
    opacity: 0.4;
    animation: pulse-scroll 3s ease-in-out infinite;
}

.scroll-indicator-text {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-warm-stone);
}

.scroll-indicator-chevron {
    font-size: 1.2rem;
    color: var(--c-warm-stone);
}

@keyframes pulse-scroll {
    0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.2; transform: translateX(-50%) translateY(8px); }
}

/* === Reveal Animations === */
.reveal-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--t-dissolve), transform var(--t-dissolve);
}

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

/* === Anamorphic Lens Flare === */
.anamorphic-flare {
    position: relative;
    width: 60vw;
    height: 2px;
    margin: 0 auto;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(196, 162, 101, 0.25) 20%,
        rgba(196, 162, 101, 1) 50%,
        rgba(196, 162, 101, 0.25) 80%,
        transparent 100%
    );
    filter: blur(4px);
    z-index: 30;
    transform: scaleX(0);
    transition: transform var(--t-flare);
    animation: flare-pulse 6s ease-in-out infinite alternate;
}

.anamorphic-flare.revealed {
    transform: scaleX(1);
}

.anamorphic-flare--static {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) scaleX(1);
    animation: flare-pulse 6s ease-in-out infinite alternate;
}

@keyframes flare-pulse {
    0% { opacity: 0.6; }
    100% { opacity: 1; }
}

/* === Aspect Ratio Containers === */
.aspect-anamorphic {
    aspect-ratio: 2.39 / 1;
    width: 100%;
    margin-inline: auto;
    overflow: hidden;
}

.aspect-academy {
    aspect-ratio: 1.85 / 1;
    width: 100%;
    margin-inline: auto;
    overflow: hidden;
}

.aspect-classic {
    aspect-ratio: 4 / 3;
    width: 100%;
    margin-inline: auto;
    overflow: hidden;
}

/* === Scene Type: Wide Shot === */
.scene-wide .scene-bg {
    opacity: 0.3;
}

.scene-wide .scene-content {
    width: 88%;
    margin: 0 auto;
}

.scene-wide .scene-body {
    font-size: 0.875rem;
    text-align: justify;
}

/* === Scene Type: Medium Shot === */
.scene-medium .scene-content {
    width: 55vw;
}

/* === Scene Type: Close-up Shot === */
.scene-closeup .scene-bg {
    width: 100%;
    height: 120%;
}

.scene-closeup .scene-overlay .scene-body {
    font-size: 1rem;
}

/* === Scene Title (Title Sequence) === */
.scene-title-seq {
    background: var(--c-charred-walnut);
}

/* === Credits Scene === */
.scene-credits {
    background: var(--c-charred-walnut);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 100vh;
    overflow: hidden;
}

.credits-container {
    width: 100%;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    position: relative;
}

.credits-content {
    text-align: center;
    padding: 2rem;
    animation: credits-roll 30s linear forwards;
    animation-play-state: paused;
}

.credits-content.rolling {
    animation-play-state: running;
}

@keyframes credits-roll {
    0% {
        transform: translateY(100vh);
    }
    100% {
        transform: translateY(-100%);
    }
}

.credits-line {
    font-family: 'Source Serif 4', 'Georgia', serif;
    line-height: 2.4;
    color: var(--c-warm-stone);
}

.credits-line--label {
    font-family: 'Cormorant Garamond', 'Georgia', serif;
    font-weight: 300;
    font-size: clamp(1rem, 2vw, 1.4rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-amber-glow);
    margin-top: 2rem;
}

.credits-line--value {
    font-family: 'Playfair Display', 'Georgia', serif;
    font-weight: 700;
    font-style: italic;
    font-size: clamp(1.8rem, 4vw, 3rem);
    letter-spacing: -0.02em;
    line-height: 1.3;
    color: var(--c-warm-vellum);
}

.credits-line--detail {
    font-family: 'Source Serif 4', 'Georgia', serif;
    font-weight: 400;
    font-size: 0.9375rem;
    line-height: 2.0;
    color: var(--c-warm-stone);
}

.credits-line--final {
    font-family: 'Playfair Display', 'Georgia', serif;
    font-weight: 700;
    font-style: italic;
    font-size: clamp(2rem, 5vw, 4rem);
    letter-spacing: -0.02em;
    color: var(--c-warm-vellum);
    margin-top: 3rem;
}

.credits-line--year {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-muted-amber);
    opacity: 0.6;
    margin-top: 1rem;
}

.credits-spacer {
    height: 2rem;
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 3px;
}

::-webkit-scrollbar-track {
    background: var(--c-charred-walnut);
}

::-webkit-scrollbar-thumb {
    background: var(--c-buckwheat-honey);
    border-radius: 2px;
}

/* === Responsive === */
@media (max-width: 768px) {
    .scene-content--rule-of-thirds {
        padding-left: 5%;
        padding-top: 40%;
        max-width: 90vw;
    }

    .scene-content--bottom-third .scene-body {
        max-width: 90%;
        padding-left: 2%;
    }

    .scene-overlay {
        width: 85%;
        padding: 2rem;
    }

    .scene-medium .scene-content {
        width: 85vw;
    }

    .scene-wide .scene-content {
        width: 92%;
    }

    .scene-number {
        right: 0.75rem;
        font-size: 0.5rem;
    }

    #vertical-rule {
        opacity: 0.08;
    }
}

@media (max-width: 480px) {
    .scene-content--rule-of-thirds {
        padding-top: 30%;
        max-width: 95vw;
    }

    .scene-overlay {
        width: 95%;
        padding: 1.5rem;
    }
}