/* loves.day — Cinematic Love Letter */

:root {
    --pink: #FF6B9D;
    --gold: #FFC845;
    --deep-indigo: #1A1A2E;
    --muted-violet: #4A4462;
    --mint: #7DFFC2;
    --lavender: #C4A0F5;
    --warm-white: #FFFEF2;
    --soft-lilac: #E8E0F0;
    --skew: 7deg;
}

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

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

body {
    font-family: 'Lato', sans-serif;
    font-weight: 300;
    background: var(--deep-indigo);
    color: var(--warm-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ─── Sections ─── */
.section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.section--dark {
    background: var(--deep-indigo);
    color: var(--warm-white);
}

.section--light {
    background: var(--warm-white);
    color: var(--muted-violet);
}

.section--void {
    background: #0D0D1A;
    color: var(--warm-white);
}

/* ─── Diagonal Wipes ─── */
.diagonal-wipe {
    position: absolute;
    left: -5%;
    width: 110%;
    height: 80px;
    z-index: 2;
}

.diagonal-wipe--top {
    top: -40px;
}

.diagonal-wipe--bottom {
    bottom: -40px;
}

.section--dark .diagonal-wipe--bottom {
    background: var(--deep-indigo);
    transform: skewY(var(--skew));
}

.section--light .diagonal-wipe--top {
    background: var(--warm-white);
    transform: skewY(calc(-1 * var(--skew)));
}

.section--light .diagonal-wipe--bottom {
    background: var(--warm-white);
    transform: skewY(var(--skew));
}

.section--dark .diagonal-wipe--top {
    background: var(--deep-indigo);
    transform: skewY(calc(-1 * var(--skew)));
}

/* ─── Opening Frame ─── */
#opening {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.opening__content {
    position: relative;
    text-align: center;
    padding: 2rem;
}

.opening__title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(3.5rem, 9vw, 8rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--warm-white);
    line-height: 1;
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: titleReveal 1.5s ease-out 0.5s forwards;
}

.opening__subtitle {
    font-family: 'Space Mono', monospace;
    font-size: clamp(0.7rem, 1.5vw, 0.9rem);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--pink);
    opacity: 0;
    animation: fadeUp 1s ease-out 1.5s forwards;
}

/* HUD Corners */
.hud-corner {
    position: absolute;
    width: 40px;
    height: 40px;
    border-color: var(--gold);
    border-style: solid;
    border-width: 0;
    opacity: 0;
    animation: fadeIn 0.5s ease-out 2s forwards;
}

.hud-corner--tl { top: -20px; left: -20px; border-top-width: 1px; border-left-width: 1px; }
.hud-corner--tr { top: -20px; right: -20px; border-top-width: 1px; border-right-width: 1px; }
.hud-corner--bl { bottom: -20px; left: -20px; border-bottom-width: 1px; border-left-width: 1px; }
.hud-corner--br { bottom: -20px; right: -20px; border-bottom-width: 1px; border-right-width: 1px; }

/* HUD Scanline */
.hud-scanline {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--mint);
    opacity: 0.3;
    animation: scanline 4s linear infinite 2.5s;
}

/* HUD Readout */
.hud-readout {
    margin-top: 3rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--mint);
    opacity: 0;
    animation: fadeIn 0.8s ease-out 2.5s forwards;
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
}

.hud-readout__value {
    color: var(--gold);
    animation: pulse 1.2s ease-in-out infinite;
}

/* ─── Vignettes ─── */
.vignette {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1100px;
    width: 90%;
    align-items: center;
    position: relative;
    z-index: 1;
    padding: 4rem 0;
}

.vignette--reverse {
    direction: rtl;
}

.vignette--reverse > * {
    direction: ltr;
}

.vignette__sketch {
    display: flex;
    align-items: center;
    justify-content: center;
}

.sketch-svg {
    width: 100%;
    max-width: 350px;
    color: var(--muted-violet);
}

.section--dark .sketch-svg {
    color: var(--soft-lilac);
}

.sketch-line {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    transition: stroke-dashoffset 2s ease-out;
}

.sketch-line.drawn {
    stroke-dashoffset: 0;
}

.vignette__title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2rem, 5vw, 4rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    line-height: 1;
    margin-bottom: 1rem;
}

.section--light .vignette__title {
    color: var(--deep-indigo);
}

.section--dark .vignette__title {
    color: var(--warm-white);
}

.vignette__body {
    font-family: 'Lato', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.8vw, 1.15rem);
    line-height: 1.7;
    max-width: 500px;
}

.section--light .vignette__body {
    color: var(--muted-violet);
}

.section--dark .vignette__body {
    color: var(--soft-lilac);
}

/* HUD Measurement badges */
.hud-measurement {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: var(--mint);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.7;
    z-index: 3;
}

.section--light .hud-measurement {
    color: var(--lavender);
}

.hud-measurement__icon {
    font-size: 0.9rem;
    color: var(--gold);
}

/* ─── Diagonal Sections ─── */
.diagonal-section {
    padding: 6rem 0;
}

/* ─── HUD Interlude ─── */
#hud-interlude {
    min-height: 80vh;
}

.hud-interlude__content {
    text-align: center;
    width: 90%;
    max-width: 700px;
}

.hud-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.hud-cell {
    border: 1px solid rgba(255, 200, 69, 0.2);
    padding: 1.5rem;
    text-align: left;
}

.hud-cell__label {
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.25em;
    color: var(--gold);
    display: block;
    margin-bottom: 1rem;
}

.hud-cell__bar {
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.hud-cell__fill {
    height: 100%;
    width: 0%;
    transition: width 2s ease-out;
}

.hud-cell:nth-child(1) .hud-cell__fill { background: var(--pink); }
.hud-cell:nth-child(2) .hud-cell__fill { background: var(--lavender); }
.hud-cell:nth-child(3) .hud-cell__fill { background: var(--mint); }

.hud-cell__value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem;
    color: var(--warm-white);
}

.hud-cell__text-value {
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    color: var(--pink);
    margin-top: 0.5rem;
    animation: glitch 3s infinite;
}

.hud-interlude__caption {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--muted-violet);
    text-transform: lowercase;
}

/* ─── Closing Frame ─── */
#closing {
    min-height: 100vh;
    text-align: center;
}

.closing__content {
    position: relative;
    z-index: 1;
}

.closing__title {
    font-family: 'Lato', sans-serif;
    font-weight: 300;
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    letter-spacing: 0.3em;
    color: var(--soft-lilac);
    margin-bottom: 0.5rem;
    text-transform: lowercase;
}

.closing__domain {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(4rem, 12vw, 10rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--warm-white);
    line-height: 1;
}

.closing__line {
    width: 120px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--pink), var(--gold), var(--lavender), transparent);
    margin: 2rem auto;
}

.closing__tagline {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--mint);
    opacity: 0.6;
}

.hud-timestamp {
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    color: var(--muted-violet);
    margin-top: 3rem;
}

/* ─── Animations ─── */
@keyframes titleReveal {
    0% { opacity: 0; transform: translateY(30px) scaleY(0.8); }
    100% { opacity: 1; transform: translateY(0) scaleY(1); }
}

@keyframes fadeUp {
    0% { opacity: 0; transform: translateY(15px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes scanline {
    0% { top: 0; opacity: 0.3; }
    50% { opacity: 0.1; }
    100% { top: 100%; opacity: 0.3; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes glitch {
    0%, 95%, 100% { transform: none; opacity: 1; }
    96% { transform: translateX(-2px); opacity: 0.8; }
    97% { transform: translateX(2px); opacity: 0.6; }
    98% { transform: translateX(-1px); opacity: 0.9; }
}

/* ─── Scroll-driven fade-in ─── */
.vignette__text,
.vignette__sketch {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.vignette__text.visible,
.vignette__sketch.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
    .vignette {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .vignette--reverse {
        direction: ltr;
    }

    .hud-grid {
        grid-template-columns: 1fr;
    }

    .hud-measurement {
        position: static;
        justify-content: center;
        margin-top: 1rem;
    }

    .diagonal-wipe {
        height: 50px;
    }

    .diagonal-wipe--top { top: -25px; }
    .diagonal-wipe--bottom { bottom: -25px; }
}