/* ===================================
   perso.news - Cinematic Glitch Design
   =================================== */

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

:root {
    --deep-film-black: #0D0B1A;
    --signal-white: #F0EDE6;
    --hot-pink: #FF6B9D;
    --electric-mint: #00D4AA;
    --corrupt-yellow: #FFD93D;
    --bruise-purple: #7B2D8E;
    --static-gray: #3A3A52;
    --dark-navy: #1A1A2E;
}

html {
    scroll-behavior: auto;
    scroll-snap-type: y mandatory;
}

body {
    background: var(--deep-film-black);
    color: var(--signal-white);
    font-family: 'DM Sans', sans-serif;
    font-weight: 400;
    font-size: clamp(0.95rem, 1.1vw, 1.15rem);
    line-height: 1.72;
    overflow-x: hidden;
    cursor: crosshair;
}

/* --- Scan Lines Overlay --- */
#scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 2px,
        rgba(0, 0, 0, 0.04) 2px,
        rgba(0, 0, 0, 0.04) 3px
    );
}

/* --- Film Grain Overlay --- */
#grain {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    pointer-events: none;
    z-index: 999;
    opacity: 0.06;
    animation: grainShift 100ms steps(4) infinite;
}

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

/* --- Particle Canvas --- */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 998;
}

/* --- Progress Bar --- */
#progress-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(13, 11, 26, 0.5);
    z-index: 1001;
}

#progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(to right, var(--hot-pink), var(--electric-mint));
    transition: width 0.1s linear;
}

#progress-fill.pulse {
    animation: progressPulse 0.6s ease-in-out infinite;
}

@keyframes progressPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* --- Frames --- */
.frame {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    scroll-snap-align: start;
    display: flex;
    align-items: center;
    justify-content: center;
}

.frame-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease-out;
    will-change: transform;
}

/* --- Splice Bars --- */
.splice-bar {
    width: 100%;
    height: 16px;
    background: repeating-linear-gradient(
        to right,
        var(--hot-pink) 0px,
        var(--hot-pink) 4px,
        var(--electric-mint) 4px,
        var(--electric-mint) 8px,
        var(--corrupt-yellow) 8px,
        var(--corrupt-yellow) 12px,
        var(--bruise-purple) 12px,
        var(--bruise-purple) 16px
    );
    flex-shrink: 0;
}

/* --- Timecode (Metadata) --- */
.timecode {
    font-family: 'Space Mono', monospace;
    font-weight: 400;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    color: var(--hot-pink);
}

/* --- Glitch Tear --- */
.glitch-tear {
    position: absolute;
    left: 0;
    width: 100%;
    height: 6px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(
        to right,
        var(--hot-pink) 0%,
        var(--corrupt-yellow) 33%,
        var(--electric-mint) 66%,
        var(--bruise-purple) 100%
    );
    opacity: 0;
    z-index: 10;
    pointer-events: none;
}

.glitch-tear.active {
    opacity: 1;
    animation: tearFlicker 200ms steps(2) forwards;
}

@keyframes tearFlicker {
    0% { opacity: 1; clip-path: inset(0 0 0 0); }
    25% { opacity: 1; clip-path: inset(0 20% 0 0); }
    50% { opacity: 1; clip-path: inset(0 0 0 30%); }
    75% { opacity: 1; clip-path: inset(0 10% 0 10%); }
    100% { opacity: 0; }
}

/* ===========================
   FRAME 1: TITLE CARD
   =========================== */
.frame-1 {
    background: var(--deep-film-black);
}

.title-group {
    display: flex;
    align-items: baseline;
    gap: 0;
    position: relative;
}

.title-perso,
.title-news {
    font-family: 'Urbanist', sans-serif;
    font-weight: 800;
    font-size: clamp(2.8rem, 7vw, 5.5rem);
    letter-spacing: -0.03em;
    text-transform: uppercase;
    line-height: 1;
    margin: 0;
}

.title-perso {
    color: var(--signal-white);
    opacity: 0;
    animation: titleFadeIn 0.6s ease forwards;
    /* Channel separation effect */
    text-shadow:
        -3px 0 var(--hot-pink),
        3px 0 var(--electric-mint);
}

.title-news {
    color: var(--electric-mint);
    opacity: 0;
    animation: titleFadeIn 0.6s ease 0.8s forwards;
    text-shadow:
        -2px 0 rgba(255, 107, 157, 0.4),
        2px 0 rgba(0, 212, 170, 0.4);
}

@keyframes titleFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.frame-1 .timecode {
    position: absolute;
    bottom: 40px;
    left: 40px;
}

/* ===========================
   FRAME 2: MANIFESTO
   =========================== */
.frame-2 {
    background: var(--deep-film-black);
}

.letterbox {
    flex-direction: column;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 24px;
}

.manifesto-text {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.manifesto-line {
    max-width: 38ch;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.manifesto-line.visible {
    opacity: 1;
    transform: translateY(0);
}

.highlight-word {
    color: var(--hot-pink);
    font-weight: 500;
    position: relative;
}

.frame-2 .timecode-frame {
    position: absolute;
    bottom: 40px;
    left: 40px;
    color: var(--hot-pink);
}

/* ===========================
   FRAME 3: THE SIGNAL
   =========================== */
.frame-3 {
    background: var(--static-gray);
}

.full-bleed {
    padding: 0;
    overflow: hidden;
}

.signal-composition {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.signal-rect {
    position: absolute;
    opacity: 0.85;
}

.signal-rect-1 {
    width: 45%;
    height: 35%;
    top: 10%;
    left: 5%;
    background: var(--hot-pink);
    mix-blend-mode: screen;
    animation: signalDrift1 8s ease-in-out infinite alternate;
}

.signal-rect-2 {
    width: 35%;
    height: 50%;
    top: 25%;
    right: 10%;
    background: var(--electric-mint);
    mix-blend-mode: screen;
    animation: signalDrift2 10s ease-in-out infinite alternate;
}

.signal-rect-3 {
    width: 55%;
    height: 20%;
    bottom: 15%;
    left: 20%;
    background: var(--corrupt-yellow);
    mix-blend-mode: screen;
    animation: signalDrift3 6s ease-in-out infinite alternate;
}

.signal-rect-4 {
    width: 25%;
    height: 40%;
    top: 5%;
    right: 30%;
    background: var(--bruise-purple);
    mix-blend-mode: screen;
    animation: signalDrift4 12s ease-in-out infinite alternate;
}

.signal-rect-5 {
    width: 40%;
    height: 15%;
    bottom: 30%;
    left: 0;
    background: linear-gradient(90deg, var(--hot-pink), var(--corrupt-yellow));
    mix-blend-mode: screen;
    animation: signalDrift5 9s ease-in-out infinite alternate;
}

.signal-rect-6 {
    width: 30%;
    height: 30%;
    top: 40%;
    left: 35%;
    background: linear-gradient(135deg, var(--electric-mint), var(--bruise-purple));
    mix-blend-mode: screen;
    animation: signalDrift6 7s ease-in-out infinite alternate;
}

@keyframes signalDrift1 { from { transform: translate(0, 0); } to { transform: translate(2px, -1px); } }
@keyframes signalDrift2 { from { transform: translate(0, 0); } to { transform: translate(-2px, 1px); } }
@keyframes signalDrift3 { from { transform: translate(0, 0); } to { transform: translate(1px, 2px); } }
@keyframes signalDrift4 { from { transform: translate(0, 0); } to { transform: translate(-1px, -2px); } }
@keyframes signalDrift5 { from { transform: translate(0, 0); } to { transform: translate(2px, 1px); } }
@keyframes signalDrift6 { from { transform: translate(0, 0); } to { transform: translate(-2px, -1px); } }

/* Signal Tears */
.signal-tear {
    position: absolute;
    left: 0;
    width: 100%;
    height: 5px;
    pointer-events: none;
}

.signal-tear-1 {
    top: 30%;
    background: var(--hot-pink);
    animation: signalTearAnim 4s ease-in-out infinite;
}

.signal-tear-2 {
    top: 55%;
    background: var(--corrupt-yellow);
    animation: signalTearAnim 5.5s ease-in-out 1s infinite;
}

.signal-tear-3 {
    top: 78%;
    background: var(--electric-mint);
    animation: signalTearAnim 3.5s ease-in-out 2s infinite;
}

@keyframes signalTearAnim {
    0%, 90%, 100% { transform: translateX(0); opacity: 0.3; }
    93% { transform: translateX(15px); opacity: 1; }
    96% { transform: translateX(-10px); opacity: 0.8; }
}

.timecode-signal {
    position: absolute;
    bottom: 40px;
    right: 40px;
    z-index: 10;
}

/* ===========================
   FRAME 4: ARCHIVE
   =========================== */
.frame-4 {
    background: var(--deep-film-black);
}

.contact-sheet {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 4px;
    width: min(90vw, 900px);
    aspect-ratio: 16 / 10;
}

.contact-frame {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-frame:hover {
    transform: perspective(800px) rotateY(5deg) rotateX(-3deg) scale(1.05);
    box-shadow: 0 0 20px rgba(255, 107, 157, 0.3);
    z-index: 5;
}

.contact-gradient {
    width: 100%;
    height: 100%;
}

/* Generate unique gradients for each contact frame */
.contact-frame[data-index="0"] .contact-gradient {
    background: linear-gradient(135deg, var(--hot-pink), var(--deep-film-black));
}
.contact-frame[data-index="1"] .contact-gradient {
    background: linear-gradient(45deg, var(--electric-mint), var(--static-gray));
}
.contact-frame[data-index="2"] .contact-gradient {
    background: linear-gradient(180deg, var(--corrupt-yellow), var(--bruise-purple));
}
.contact-frame[data-index="3"] .contact-gradient {
    background: linear-gradient(225deg, var(--bruise-purple), var(--deep-film-black));
}
.contact-frame[data-index="4"] .contact-gradient {
    background: linear-gradient(90deg, var(--hot-pink), var(--electric-mint));
}
.contact-frame[data-index="5"] .contact-gradient {
    background: linear-gradient(270deg, var(--corrupt-yellow), var(--deep-film-black));
}
.contact-frame[data-index="6"] .contact-gradient {
    background: linear-gradient(315deg, var(--electric-mint), var(--bruise-purple));
}
.contact-frame[data-index="7"] .contact-gradient {
    background: linear-gradient(160deg, var(--static-gray), var(--hot-pink));
}
.contact-frame[data-index="8"] .contact-gradient {
    background: linear-gradient(200deg, var(--bruise-purple), var(--electric-mint));
}
.contact-frame[data-index="9"] .contact-gradient {
    background: linear-gradient(75deg, var(--corrupt-yellow), var(--hot-pink));
}
.contact-frame[data-index="10"] .contact-gradient {
    background: linear-gradient(110deg, var(--deep-film-black), var(--electric-mint));
}
.contact-frame[data-index="11"] .contact-gradient {
    background: linear-gradient(350deg, var(--hot-pink), var(--corrupt-yellow));
}

.contact-timecode {
    position: absolute;
    bottom: 4px;
    left: 4px;
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.06em;
    color: var(--hot-pink);
    opacity: 0.8;
    text-shadow: 0 0 4px rgba(13, 11, 26, 0.9);
}

.frame-4 .timecode-frame {
    position: absolute;
    bottom: 40px;
    left: 40px;
}

/* ===========================
   FRAME 5: TRANSMISSION END
   =========================== */
.frame-5 {
    background: var(--deep-film-black);
    transition: background 0.5s ease;
}

.frame-5.degrading {
    background: var(--static-gray);
}

.end-transmission {
    font-family: 'Urbanist', sans-serif;
    font-weight: 800;
    font-size: clamp(2rem, 5vw, 4rem);
    letter-spacing: -0.03em;
    text-transform: uppercase;
    color: var(--signal-white);
    text-shadow:
        -3px 0 var(--hot-pink),
        3px 0 var(--electric-mint);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0;
}

.end-letter {
    display: inline-block;
    transform: translateY(var(--offset, 0px));
    animation: letterBreakup 3s ease-in-out infinite alternate;
}

@keyframes letterBreakup {
    0% { transform: translateY(var(--offset, 0px)); }
    50% { transform: translateY(calc(var(--offset, 0px) * 2)); }
    100% { transform: translateY(var(--offset, 0px)); }
}

.end-space {
    width: 0.4em;
    display: inline-block;
}

.frame-5 .timecode-frame {
    position: absolute;
    bottom: 40px;
    left: 40px;
    animation: blinkTimecode 1.5s step-end infinite;
}

@keyframes blinkTimecode {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* --- Random Glitch Element --- */
.glitch-element {
    position: absolute;
    pointer-events: none;
    z-index: 50;
}

.glitch-element .tear-band {
    width: 100vw;
    left: 0;
    position: absolute;
    background: linear-gradient(
        to right,
        var(--hot-pink),
        var(--corrupt-yellow),
        var(--electric-mint)
    );
    opacity: 0;
}

.glitch-element .tear-band.flash {
    animation: tearBandFlash 150ms steps(3) forwards;
}

@keyframes tearBandFlash {
    0% { opacity: 0.9; transform: translateX(-5px); }
    33% { opacity: 1; transform: translateX(8px); }
    66% { opacity: 0.7; transform: translateX(-3px); }
    100% { opacity: 0; transform: translateX(0); }
}

/* --- Frame visibility --- */
.frame {
    opacity: 1;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .letterbox {
        max-width: 100%;
        padding: 0 20px;
    }

    .contact-sheet {
        width: 95vw;
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: repeat(4, 1fr);
    }

    .title-perso,
    .title-news {
        font-size: clamp(2rem, 10vw, 3.5rem);
    }

    .end-transmission {
        font-size: clamp(1.5rem, 7vw, 2.5rem);
    }

    .frame-1 .timecode,
    .frame-2 .timecode-frame,
    .frame-4 .timecode-frame,
    .frame-5 .timecode-frame,
    .timecode-signal {
        bottom: 20px;
        left: 20px;
    }

    .timecode-signal {
        left: auto;
        right: 20px;
    }
}