/* ============================================================
   thethird.quest - Cinematic Triptych
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
    --obsidian-black: #0B0A0F;
    --celestial-indigo: #1B1464;
    --deep-carmine: #6B1D2A;
    --molten-gold: #C4922A;
    --bone-white: #F0EDE6;
    --pewter-ash: #8A8680;
    --burnt-amber: #D4731A;

    --font-display: 'Bebas Neue', sans-serif;
    --font-numeral: 'Playfair Display', serif;
    --font-body: 'Spectral', serif;

    --circumference-outer: 1193.8; /* 2 * pi * 190 */
    --circumference-mid: 955.04;   /* 2 * pi * 152 */
    --circumference-inner: 716.28; /* 2 * pi * 114 */
    --circumference-core: 477.52;  /* 2 * pi * 76 */
}

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

html {
    background: var(--obsidian-black);
    color: var(--bone-white);
    overflow: hidden;
    height: 100%;
}

body {
    height: 100%;
    overflow: hidden;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(0.95rem, 1.2vw, 1.15rem);
    line-height: 1.75;
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Triptych Container (scroll-snap) --- */
.triptych-container {
    height: 100vh;
    overflow-y: scroll;
    scroll-snap-type: y mandatory;
    scrollbar-width: none;
}

.triptych-container::-webkit-scrollbar {
    display: none;
}

/* --- Acts (shared) --- */
.act {
    height: 100vh;
    scroll-snap-align: start;
    position: relative;
    overflow: hidden;
}

/* ============================================================
   Act I: The Summons
   ============================================================ */
.act-i {
    background: var(--obsidian-black);
}

.act-i-grid {
    display: grid;
    grid-template-columns: 38fr 62fr;
    height: 100%;
    width: 100%;
}

/* Left Panel */
.act-i-left {
    position: relative;
    background: var(--obsidian-black);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.monumental-numeral {
    font-family: var(--font-numeral);
    font-weight: 900;
    color: var(--bone-white);
    line-height: 0.8;
    user-select: none;
    pointer-events: none;
}

.monumental-i {
    font-size: 40vw;
    opacity: 0.04;
    position: absolute;
    right: -10%;
    top: 50%;
    transform: translateY(-50%);
}

/* Right Panel */
.act-i-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8vw;
    position: relative;
}

.act-i-content {
    text-align: right;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 600ms ease, transform 600ms ease;
}

.act-i-content.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Domain Name Stack */
.domain-stack {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.domain-stack span {
    display: block;
    font-family: var(--font-display);
    letter-spacing: 0.08em;
    line-height: 0.9;
    text-transform: uppercase;
    color: var(--bone-white);
}

.domain-the {
    font-size: clamp(2rem, 4vw, 3rem);
}

.domain-third {
    font-size: clamp(4rem, 9vw, 8rem);
}

.domain-quest {
    font-size: clamp(5rem, 13vw, 12rem);
}

/* Gold Rule */
.gold-rule {
    height: 1px;
    background: var(--molten-gold);
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    width: 0;
    transition: width 800ms cubic-bezier(0.22, 1, 0.36, 1);
    margin-left: auto;
}

.gold-rule.expanded {
    width: 100%;
}

/* Purpose Text */
.purpose-text {
    font-family: var(--font-body);
    font-size: 1.1rem;
    line-height: 1.75;
    color: var(--bone-white);
    max-width: 28ch;
    margin-left: auto;
    opacity: 0.85;
}

/* ============================================================
   Act II: The Descent
   ============================================================ */
.act-ii {
    background: linear-gradient(to bottom, var(--obsidian-black) 54.9%, var(--deep-carmine) 55.1%);
    position: relative;
}

.act-ii-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.monumental-ii {
    position: absolute;
    font-size: 50vw;
    opacity: 0.04;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
}

/* Diagonal SVG Lines */
.diagonal-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.diag-line {
    stroke: var(--molten-gold);
    stroke-width: 1;
    stroke-opacity: 0.4;
    stroke-dasharray: 8 4;
    animation: flowLine 2s linear infinite;
    fill: none;
}

.diag-12 { animation-delay: 0s; }
.diag-24 { animation-delay: 0.3s; }
.diag-36 { animation-delay: 0.6s; }

@keyframes flowLine {
    from { stroke-dashoffset: 0; }
    to { stroke-dashoffset: -24; }
}

/* Micro numerals along diagonal lines */
.micro-numeral {
    font-family: 'Playfair Display', serif;
    font-size: 12px;
    fill: var(--molten-gold);
    fill-opacity: 0.35;
    animation: spinNumeral 30s linear infinite;
}

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

.mn-1 { transform-origin: 200px 920px; }
.mn-2 { transform-origin: 500px 780px; }
.mn-3 { transform-origin: 800px 640px; }

/* Diagonal Text Blocks */
.diagonal-content {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
}

.diag-text-block {
    position: absolute;
    transform: rotate(-12deg);
    transform-origin: center center;
    max-width: 320px;
    opacity: 0;
    transition: opacity 600ms ease, transform 600ms ease;
    pointer-events: auto;
}

.diag-text-block.visible {
    opacity: 1;
}

.diag-block-1 {
    top: 15%;
    left: 10%;
    transform: translateY(20px) rotate(-12deg);
}

.diag-block-1.visible {
    transform: translateY(0) rotate(-12deg);
}

.diag-block-2 {
    top: 42%;
    left: 38%;
    transform: translateY(20px) rotate(-12deg);
    transition-delay: 200ms;
}

.diag-block-2.visible {
    transform: translateY(0) rotate(-12deg);
}

.diag-block-3 {
    top: 68%;
    left: 60%;
    transform: translateY(20px) rotate(-12deg);
    transition-delay: 400ms;
}

.diag-block-3.visible {
    transform: translateY(0) rotate(-12deg);
}

.diag-heading {
    font-family: var(--font-display);
    font-size: clamp(2rem, 6vw, 5rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--bone-white);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.diag-body {
    font-family: var(--font-body);
    font-size: clamp(0.95rem, 1.2vw, 1.15rem);
    line-height: 1.75;
    color: var(--bone-white);
    opacity: 0.85;
}

/* Seam Line */
.seam-line {
    position: absolute;
    left: 0;
    right: 0;
    top: 55%;
    height: 2px;
    background: linear-gradient(90deg,
        var(--molten-gold) 0%,
        var(--burnt-amber) 50%,
        var(--molten-gold) 100%
    );
    background-size: 200% 100%;
    animation: shimmerSeam 3s ease-in-out infinite;
    z-index: 3;
    opacity: 0.6;
}

@keyframes shimmerSeam {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ============================================================
   Act III: The Arrival
   ============================================================ */
.act-iii {
    background: var(--celestial-indigo);
    display: grid;
    place-items: center;
}

.act-iii-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2;
    position: relative;
    animation: breathe 8s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% { transform: scale(0.98); }
    50% { transform: scale(1.02); }
}

/* Concentric Circles */
.circle-assembly {
    position: relative;
    width: 60vmin;
    height: 60vmin;
    display: flex;
    align-items: center;
    justify-content: center;
}

.concentric-circles {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.ring {
    fill: none;
    stroke: var(--molten-gold);
    stroke-linecap: round;
}

.ring-outer {
    stroke-width: 2;
    stroke-dasharray: 1193.8;
    stroke-dashoffset: 1193.8;
    animation: drawRing 3s ease-out forwards;
}

.ring-mid {
    stroke-width: 1.5;
    stroke-dasharray: 955.04;
    stroke-dashoffset: 955.04;
    animation: drawRing 3s ease-out forwards;
    animation-delay: 0.5s;
}

.ring-inner {
    stroke-width: 1;
    stroke-dasharray: 716.28;
    stroke-dashoffset: 716.28;
    animation: drawRing 3s ease-out forwards;
    animation-delay: 1s;
}

.ring-core {
    stroke-width: 0.5;
    stroke-dasharray: 477.52;
    stroke-dashoffset: 477.52;
    animation: drawRing 3s ease-out forwards;
    animation-delay: 1.5s;
}

@keyframes drawRing {
    to { stroke-dashoffset: 0; }
}

/* Paused by default, triggered via JS */
.ring {
    animation-play-state: paused;
}

.act-iii.in-view .ring {
    animation-play-state: running;
}

/* Numeral III */
.numeral-iii {
    font-family: var(--font-numeral);
    font-weight: 900;
    font-size: 20vmin;
    color: var(--molten-gold);
    mix-blend-mode: screen;
    line-height: 1;
    z-index: 1;
    position: relative;
}

/* Proclamation Text */
.proclamation {
    font-family: var(--font-body);
    font-style: italic;
    font-weight: 400;
    font-size: 1.3rem;
    line-height: 1.75;
    color: var(--bone-white);
    text-align: center;
    max-width: 36ch;
    margin-top: 2rem;
    opacity: 0;
    animation: fadeInProc 1s ease forwards;
    animation-delay: 3.2s;
    animation-play-state: paused;
}

.act-iii.in-view .proclamation {
    animation-play-state: running;
}

/* Starburst Lines (Act III background) */
.starburst-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.15;
}

.burst-line {
    stroke: var(--molten-gold);
    stroke-width: 0.5;
    stroke-dasharray: 8 4;
    animation: flowLine 2s linear infinite;
    fill: none;
}

@keyframes fadeInProc {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 0.9; transform: translateY(0); }
}

/* ============================================================
   Navigation Indicators
   ============================================================ */
.act-nav {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.act-nav-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-numeral);
    font-weight: 900;
    font-size: 1.5rem;
    position: relative;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
}

.act-nav-label {
    color: var(--pewter-ash);
    position: absolute;
    transition: color 400ms ease;
}

.act-nav-fill {
    color: var(--molten-gold);
    position: absolute;
    clip-path: inset(100% 0 0 0);
    transition: clip-path 400ms ease;
}

.act-nav-btn.active .act-nav-fill {
    clip-path: inset(0 0 0 0);
}

.act-nav-btn:hover .act-nav-label {
    color: var(--burnt-amber);
}

/* ============================================================
   Responsive Adjustments
   ============================================================ */
@media (max-width: 768px) {
    .act-i-grid {
        grid-template-columns: 1fr;
        grid-template-rows: 30vh 70vh;
    }

    .act-i-left {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .monumental-i {
        font-size: 60vw;
        right: auto;
        left: 50%;
        transform: translate(-50%, -50%);
    }

    .act-i-right {
        justify-content: center;
        padding-right: 2rem;
        padding-left: 2rem;
    }

    .act-i-content {
        text-align: center;
    }

    .domain-stack {
        align-items: center;
    }

    .gold-rule {
        margin-left: auto;
        margin-right: auto;
    }

    .purpose-text {
        margin-left: auto;
        margin-right: auto;
    }

    .diag-block-1 {
        top: 10%;
        left: 5%;
    }

    .diag-block-2 {
        top: 38%;
        left: 15%;
    }

    .diag-block-3 {
        top: 65%;
        left: 25%;
    }

    .diag-text-block {
        max-width: 260px;
    }

    .diag-heading {
        font-size: clamp(1.5rem, 5vw, 3rem);
    }

    .act-nav {
        right: 1rem;
    }

    .act-nav-btn {
        font-size: 1.2rem;
        width: 2rem;
        height: 2rem;
    }

    .numeral-iii {
        font-size: 16vmin;
    }

    .proclamation {
        font-size: 1.1rem;
        padding: 0 1.5rem;
    }
}