/* ============================================================
   archaic.studio - Excavated Sepia Design System
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
    --aged-parchment: #F2E8D5;
    --burnt-umber: #3D2B1F;
    --oxidized-bronze: #7A6652;
    --kiln-amber: #C4923A;
    --terracotta-glow: #B85C38;
    --carbon-depth: #1E1610;
    --faded-linen: #E8DCC8;
    --signal-teal: #4A7C72;

    --font-display: 'Cormorant Garamond', serif;
    --font-body: 'Crimson Pro', serif;
    --font-accent: 'IM Fell English SC', serif;

    --display-size: clamp(2.5rem, 7vw, 6rem);
    --body-size: clamp(1rem, 1.1vw, 1.2rem);
    --accent-size: clamp(0.7rem, 0.9vw, 0.85rem);
}

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

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

body {
    background-color: var(--aged-parchment);
    color: var(--burnt-umber);
    font-family: var(--font-body);
    font-size: var(--body-size);
    font-weight: 400;
    line-height: 1.85;
    letter-spacing: 0.02em;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Noise/Grain Overlay --- */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
}

/* --- Vignette Overlay --- */
.vignette-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9998;
    background: radial-gradient(ellipse at center, transparent 50%, var(--carbon-depth) 150%);
    opacity: 0.08;
}

/* --- Navigation Monogram --- */
.nav-monogram {
    position: fixed;
    top: 2.5rem;
    left: 2.5rem;
    z-index: 100;
}

.monogram-text {
    font-family: var(--font-accent);
    font-size: 1.1rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--burnt-umber);
    opacity: 0.7;
    transition: opacity 600ms ease-out;
}

.monogram-text:hover {
    opacity: 1;
    color: var(--kiln-amber);
}

/* --- Stratum Base --- */
.stratum {
    position: relative;
    width: 100%;
    overflow: hidden;
}

/* --- Waveform SVGs --- */
.waveform-svg {
    display: block;
    width: 100%;
    height: 60px;
}

/* ============================================================
   STRATUM 1: THE SURFACE
   ============================================================ */
.stratum-surface {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--aged-parchment);
    position: relative;
}

.surface-content {
    text-align: center;
    position: relative;
}

/* --- Logotype --- */
.logotype {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(4rem, 12vw, 10rem);
    letter-spacing: 0.12em;
    color: var(--burnt-umber);
    line-height: 1.15;
    position: relative;
    display: inline-block;
}

.logotype-letter {
    display: inline-block;
    opacity: 0;
    transform: translateY(3px);
    animation: letterReveal 500ms ease-out forwards;
    animation-delay: calc(var(--delay) * 120ms);
}

@keyframes letterReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Glitch Effect on Logotype --- */
.logotype::before,
.logotype::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(4rem, 12vw, 10rem);
    letter-spacing: 0.12em;
    line-height: 1.15;
    opacity: 0;
    pointer-events: none;
}

.logotype::before {
    color: var(--signal-teal);
    animation: glitchBefore 8s infinite;
    animation-delay: 7s;
}

.logotype::after {
    color: var(--terracotta-glow);
    animation: glitchAfter 8s infinite;
    animation-delay: 7s;
}

@keyframes glitchBefore {
    0%, 96% { opacity: 0; transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
    97% { opacity: 0.8; transform: translate(-2px, 0); clip-path: inset(20% 0 50% 0); }
    97.5% { opacity: 0.8; transform: translate(1px, 0); clip-path: inset(60% 0 10% 0); }
    98% { opacity: 0; transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
    100% { opacity: 0; }
}

@keyframes glitchAfter {
    0%, 96% { opacity: 0; transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
    97% { opacity: 0.8; transform: translate(2px, 0); clip-path: inset(40% 0 30% 0); }
    97.5% { opacity: 0.8; transform: translate(-1px, 0); clip-path: inset(10% 0 70% 0); }
    98% { opacity: 0; transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
    100% { opacity: 0; }
}

/* --- Scan Line --- */
.logotype .scan-line {
    position: absolute;
    top: 0;
    left: -5%;
    width: 110%;
    height: 1px;
    background-color: var(--signal-teal);
    opacity: 0;
    pointer-events: none;
    z-index: 2;
}

@keyframes scanSweep {
    0% { top: 0; opacity: 0.4; }
    100% { top: 100%; opacity: 0; }
}

/* --- Studio Label --- */
.studio-label {
    font-family: var(--font-accent);
    font-size: var(--accent-size);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--oxidized-bronze);
    margin-top: 1rem;
    opacity: 0;
    animation: fadeIn 800ms ease-out 1.2s forwards;
}

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

/* --- Surface Waveform --- */
.surface-waveform {
    position: absolute;
    bottom: 15vh;
    left: 0;
    width: 100%;
    padding: 0 5vw;
}

/* --- Scroll Cue --- */
.scroll-cue {
    position: absolute;
    bottom: 3rem;
    right: 3rem;
    font-family: var(--font-accent);
    font-size: var(--accent-size);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--oxidized-bronze);
    opacity: 0;
    writing-mode: vertical-rl;
    animation: fadeInDelayed 1200ms ease-out 2s forwards;
}

@keyframes fadeInDelayed {
    to { opacity: 0.3; }
}

/* ============================================================
   STRATUM 2: FIRST STRATUM - Collage Fragments
   ============================================================ */
.stratum-first {
    min-height: 70vh;
    padding: 10vh 0;
    position: relative;
    background-color: var(--aged-parchment);
}

/* --- Fragment Base --- */
.fragment {
    position: absolute;
}

.fragment-large {
    width: 40vw;
    height: 30vh;
    top: 8vh;
    left: 12vw;
}

.fragment-medium {
    width: 25vw;
    height: 20vh;
    top: 20vh;
    right: 10vw;
}

.fragment-small {
    width: 15vw;
    height: 12vh;
    bottom: 10vh;
    left: 45vw;
}

/* --- Fragment Images --- */
.fragment-image {
    width: 100%;
    height: 100%;
    background-color: var(--faded-linen);
    filter: grayscale(100%) sepia(70%) contrast(1.1) brightness(0.95);
    position: relative;
}

.fragment-img-1 {
    clip-path: polygon(3% 0%, 98% 2%, 100% 95%, 5% 100%, 0% 45%);
    background: linear-gradient(135deg, var(--oxidized-bronze) 0%, var(--faded-linen) 40%, var(--burnt-umber) 70%, var(--faded-linen) 100%);
    border-right: 1px solid var(--signal-teal);
}

.fragment-img-1::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 3px,
        rgba(74, 124, 114, 0.03) 3px,
        rgba(74, 124, 114, 0.03) 4px
    );
}

.fragment-img-2 {
    clip-path: polygon(2% 3%, 95% 0%, 100% 97%, 0% 100%);
    background: linear-gradient(225deg, var(--faded-linen) 0%, var(--oxidized-bronze) 50%, var(--burnt-umber) 80%, var(--faded-linen) 100%);
    mix-blend-mode: multiply;
    border-bottom: 1px solid var(--signal-teal);
}

.fragment-img-3 {
    clip-path: polygon(5% 2%, 100% 0%, 97% 98%, 0% 95%);
    background: linear-gradient(45deg, var(--burnt-umber) 0%, var(--faded-linen) 30%, var(--oxidized-bronze) 60%, var(--faded-linen) 100%);
    border-left: 1px solid var(--signal-teal);
}

/* --- Fragment Annotations --- */
.fragment-annotation {
    display: block;
    font-family: var(--font-accent);
    font-size: var(--accent-size);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--oxidized-bronze);
    margin-top: 0.8rem;
    opacity: 0.7;
}

/* --- Morph Reveal --- */
.morph-reveal {
    opacity: 0;
    transition: opacity 800ms cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 800ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.morph-reveal[data-direction="up"] {
    transform: translateY(30px);
}

.morph-reveal[data-direction="left"] {
    transform: translateX(-20px);
}

.morph-reveal[data-direction="fade"] {
    transform: translateY(0);
}

.morph-reveal.revealed {
    opacity: 1;
    transform: translate(0, 0);
}

/* ============================================================
   BREATHING GAPS
   ============================================================ */
.breathing-gap {
    height: 35vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--aged-parchment);
    padding: 0 10vw;
}

.breathing-gap-2 {
    height: 40vh;
}

.breathing-gap-3 {
    height: 30vh;
}

/* ============================================================
   STRATUM 3: THE ARCHIVE
   ============================================================ */
.stratum-archive {
    min-height: 80vh;
    padding: 8vh 8vw;
    position: relative;
    background-color: var(--aged-parchment);
}

.archive-heading {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2rem, 5vw, 4rem);
    letter-spacing: 0.08em;
    color: var(--burnt-umber);
    line-height: 1.15;
    margin-bottom: 6vh;
    margin-left: 5vw;
}

/* --- Archive Cluster --- */
.archive-cluster {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: auto;
    gap: 3vh 2vw;
    position: relative;
}

.archive-fragment {
    position: relative;
}

.archive-frag-1 {
    grid-column: 1 / 5;
    grid-row: 1;
    height: 25vh;
}

.archive-frag-2 {
    grid-column: 5 / 8;
    grid-row: 1 / 3;
    height: 30vh;
    margin-top: 3vh;
}

.archive-frag-3 {
    grid-column: 9 / 13;
    grid-row: 2;
    height: 18vh;
}

.archive-frag-4 {
    grid-column: 2 / 5;
    grid-row: 3;
    height: 20vh;
}

.archive-frag-5 {
    grid-column: 7 / 11;
    grid-row: 3;
    height: 22vh;
    margin-top: 2vh;
}

/* --- Archive Fragment Images --- */
.archive-img-1 {
    clip-path: polygon(0% 5%, 97% 0%, 100% 92%, 4% 100%);
    background: linear-gradient(160deg, var(--oxidized-bronze) 0%, var(--faded-linen) 35%, var(--burnt-umber) 70%, var(--faded-linen) 100%);
    filter: grayscale(100%) sepia(70%) contrast(1.1) brightness(0.95) hue-rotate(5deg);
    border-top: 1px solid var(--signal-teal);
}

.archive-img-2 {
    clip-path: polygon(3% 0%, 100% 4%, 96% 100%, 0% 97%);
    background: linear-gradient(200deg, var(--faded-linen) 0%, var(--burnt-umber) 40%, var(--oxidized-bronze) 80%);
    filter: grayscale(100%) sepia(70%) contrast(1.1) brightness(0.95) hue-rotate(10deg);
    mix-blend-mode: multiply;
    border-right: 1px solid var(--signal-teal);
}

.archive-img-3 {
    clip-path: polygon(2% 3%, 98% 0%, 100% 95%, 5% 100%);
    background: linear-gradient(320deg, var(--oxidized-bronze) 0%, var(--faded-linen) 50%, var(--burnt-umber) 100%);
    filter: grayscale(100%) sepia(70%) contrast(1.1) brightness(0.95) hue-rotate(8deg);
    border-bottom: 1px solid var(--signal-teal);
}

.archive-img-4 {
    clip-path: polygon(0% 2%, 95% 0%, 100% 100%, 3% 96%);
    background: linear-gradient(90deg, var(--faded-linen) 0%, var(--oxidized-bronze) 45%, var(--faded-linen) 100%);
    filter: grayscale(100%) sepia(70%) contrast(1.1) brightness(0.95) hue-rotate(12deg);
    mix-blend-mode: screen;
    border-left: 1px solid var(--signal-teal);
}

.archive-img-5 {
    clip-path: polygon(4% 0%, 100% 5%, 97% 100%, 0% 93%);
    background: linear-gradient(270deg, var(--burnt-umber) 0%, var(--faded-linen) 30%, var(--oxidized-bronze) 70%, var(--faded-linen) 100%);
    filter: grayscale(100%) sepia(70%) contrast(1.1) brightness(0.95) hue-rotate(15deg);
    border-top: 1px solid var(--signal-teal);
}

/* --- Archive Text Blocks --- */
.archive-text-block {
    font-family: var(--font-body);
    font-size: var(--body-size);
    line-height: 1.85;
    color: var(--burnt-umber);
    padding: 2rem 0;
}

.archive-text-1 {
    grid-column: 8 / 13;
    grid-row: 1;
    padding-left: 2vw;
}

.archive-text-2 {
    grid-column: 5 / 9;
    grid-row: 3;
    font-style: italic;
}

/* --- Off-center Rule --- */
.stratum-archive::after {
    content: '';
    position: absolute;
    bottom: 3vh;
    left: calc(50% + 3vw);
    width: 25vw;
    height: 0.5px;
    background-color: var(--oxidized-bronze);
}

/* ============================================================
   STRATUM 4: DEEP STRATUM
   ============================================================ */
.stratum-deep {
    min-height: 70vh;
    padding: 10vh 10vw;
    position: relative;
    background: linear-gradient(180deg, var(--aged-parchment) 0%, var(--faded-linen) 60%, var(--aged-parchment) 100%);
}

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

.deep-heading {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--display-size);
    letter-spacing: 0.08em;
    color: var(--burnt-umber);
    line-height: 1.15;
    margin-bottom: 5vh;
    position: relative;
    display: inline-block;
}

/* --- Glitch Text --- */
.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--display-size);
    letter-spacing: 0.08em;
    line-height: 1.15;
    opacity: 0;
    pointer-events: none;
}

.glitch-text::before {
    color: var(--signal-teal);
    animation: glitchDeepBefore 5s infinite;
}

.glitch-text::after {
    color: var(--terracotta-glow);
    animation: glitchDeepAfter 5s infinite;
}

@keyframes glitchDeepBefore {
    0%, 93% { opacity: 0; transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
    94% { opacity: 0.7; transform: translate(-2px, 0); clip-path: inset(15% 0 55% 0); }
    95% { opacity: 0.7; transform: translate(1px, 0); clip-path: inset(65% 0 5% 0); }
    96% { opacity: 0; transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
    100% { opacity: 0; }
}

@keyframes glitchDeepAfter {
    0%, 93% { opacity: 0; transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
    94% { opacity: 0.7; transform: translate(2px, 0); clip-path: inset(35% 0 35% 0); }
    95% { opacity: 0.7; transform: translate(-1px, 0); clip-path: inset(5% 0 75% 0); }
    96% { opacity: 0; transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
    100% { opacity: 0; }
}

/* --- Deep Fragments --- */
.deep-fragment {
    position: relative;
    margin: 4vh 0;
}

.deep-frag-1 {
    width: 35vw;
    height: 22vh;
    margin-left: 5vw;
}

.deep-frag-2 {
    width: 28vw;
    height: 18vh;
    margin-left: auto;
    margin-right: 8vw;
}

.deep-img-1 {
    clip-path: polygon(0% 3%, 96% 0%, 100% 90%, 6% 100%, 2% 50%);
    background: linear-gradient(150deg, var(--burnt-umber) 0%, var(--oxidized-bronze) 30%, var(--faded-linen) 60%, var(--burnt-umber) 100%);
    filter: grayscale(100%) sepia(70%) contrast(1.1) brightness(0.9) hue-rotate(7deg);
    border-bottom: 1px solid var(--signal-teal);
}

.deep-img-2 {
    clip-path: polygon(5% 0%, 100% 6%, 95% 100%, 0% 92%, 3% 40%);
    background: linear-gradient(250deg, var(--faded-linen) 0%, var(--burnt-umber) 40%, var(--oxidized-bronze) 80%);
    filter: grayscale(100%) sepia(70%) contrast(1.1) brightness(0.9) hue-rotate(13deg);
    transform: skewX(0.5deg);
    border-right: 1px solid var(--signal-teal);
}

.deep-text {
    max-width: 50ch;
    margin: 3vh auto;
    font-family: var(--font-body);
    color: var(--burnt-umber);
    text-align: center;
}

/* --- Deep Waveforms --- */
.deep-waveforms {
    position: relative;
    height: 120px;
    margin-top: 5vh;
}

.deep-waveforms .waveform-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ============================================================
   STRATUM 5: THE FOUNDATION
   ============================================================ */
.stratum-foundation {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--carbon-depth);
    position: relative;
}

.foundation-content {
    text-align: center;
    z-index: 2;
}

.foundation-logotype {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(3rem, 10vw, 8rem);
    color: var(--aged-parchment);
    letter-spacing: 0.12em;
    line-height: 1.15;
    animation: breatheLetterSpacing 10s ease-in-out infinite;
    position: relative;
    display: inline-block;
}

@keyframes breatheLetterSpacing {
    0%, 100% { letter-spacing: 0.10em; }
    50% { letter-spacing: 0.14em; }
}

/* Foundation glitch pseudo-elements */
.foundation-logotype::before,
.foundation-logotype::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(3rem, 10vw, 8rem);
    letter-spacing: 0.12em;
    line-height: 1.15;
    opacity: 0;
    pointer-events: none;
}

.foundation-logotype::before {
    color: var(--signal-teal);
}

.foundation-logotype::after {
    color: var(--terracotta-glow);
}

.foundation-closing {
    font-family: var(--font-body);
    font-style: italic;
    font-size: clamp(1rem, 1.3vw, 1.3rem);
    color: var(--aged-parchment);
    opacity: 0.7;
    max-width: 45ch;
    margin: 2rem auto 0;
    line-height: 1.85;
    letter-spacing: 0.02em;
}

.foundation-waveform {
    position: absolute;
    bottom: 20vh;
    left: 0;
    width: 100%;
    padding: 0 10vw;
}

.foundation-waveform .waveform-svg .wave-path {
    stroke: var(--kiln-amber);
}

/* ============================================================
   COLLAGE REGION CURSOR
   ============================================================ */
.fragment-image,
.archive-fragment .fragment-image,
.deep-fragment .fragment-image {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cline x1='12' y1='4' x2='12' y2='20' stroke='%237A6652' stroke-width='0.5'/%3E%3Cline x1='4' y1='12' x2='20' y2='12' stroke='%237A6652' stroke-width='0.5'/%3E%3Ccircle cx='12' cy='12' r='6' stroke='%237A6652' stroke-width='0.5' fill='none'/%3E%3C/svg%3E") 12 12, crosshair;
}

/* ============================================================
   HORIZONTAL DRIFT (applied via JS transform)
   ============================================================ */
.horizontal-drift {
    will-change: transform;
}

/* ============================================================
   GLITCH MICRO-TREMOR (triggered via JS)
   ============================================================ */
.micro-tremor {
    animation: microTremor 16ms linear;
}

@keyframes microTremor {
    0% { transform: translateX(0); }
    50% { transform: translateX(3px); }
    100% { transform: translateX(0); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .fragment-large {
        width: 70vw;
        height: 25vh;
        left: 5vw;
    }

    .fragment-medium {
        width: 50vw;
        height: 18vh;
        right: 5vw;
        top: 35vh;
    }

    .fragment-small {
        width: 35vw;
        height: 12vh;
        left: 30vw;
        bottom: 5vh;
    }

    .archive-cluster {
        grid-template-columns: 1fr;
        gap: 3vh 0;
    }

    .archive-frag-1,
    .archive-frag-2,
    .archive-frag-3,
    .archive-frag-4,
    .archive-frag-5 {
        grid-column: 1;
        grid-row: auto;
        height: 25vh;
    }

    .archive-text-1,
    .archive-text-2 {
        grid-column: 1;
        grid-row: auto;
        padding-left: 0;
    }

    .deep-frag-1 {
        width: 70vw;
        margin-left: 0;
    }

    .deep-frag-2 {
        width: 60vw;
        margin-right: 0;
    }

    .scroll-cue {
        right: 1.5rem;
        bottom: 2rem;
    }

    .nav-monogram {
        top: 1.5rem;
        left: 1.5rem;
    }

    .stratum-archive {
        padding: 6vh 5vw;
    }

    .stratum-deep {
        padding: 6vh 5vw;
    }
}