/* ============================================
   namu.day - Holographic Raw-Grain
   ============================================ */
:root {
    --void-black: #0A0A0F;
    --charcoal-noise: #12121A;
    --electric-fuchsia: #FF2DFF;
    --neon-ice: #00F0FF;
    --acid-green: #ADFF2F;
    --spectral-amber: #FFD700;
    --uv-purple: #8B00FF;
    --grain-white: #E8E4E0;
    --faded-silver: #7A7670;
    --hot-pink: #FF1493;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
    background: var(--void-black);
    color: var(--grain-white);
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.8vw, 1.1rem);
    line-height: 1.8;
    letter-spacing: 0.02em;
    overflow-x: hidden;
}

/* ==============================
   FILM GRAIN OVERLAY
   ============================== */
.grain {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    mix-blend-mode: overlay;
    opacity: 0.12;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
    background-size: 200px 200px;
    animation: grainShift 0.3s steps(3) infinite;
}
@keyframes grainShift {
    0% { background-position: 0 0; }
    33% { background-position: -1px 1px; }
    66% { background-position: 1px -1px; }
    100% { background-position: 0 0; }
}

/* ==============================
   HOLOGRAPHIC GRADIENT
   ============================== */
@keyframes holoText {
    0% { background-position: 0% 50%; }
    100% { background-position: 300% 50%; }
}

/* ==============================
   SPACERS
   ============================== */
.spacer { position: relative; }
.spacer--full { min-height: 100vh; }
.spacer--80 { min-height: 80vh; }
.spacer--60 { min-height: 60vh; }

/* ==============================
   FLOATING ELEMENTS
   ============================== */
.float-el {
    position: absolute;
    pointer-events: none;
    z-index: 2;
}
.float-el--circle {
    border-radius: 50%;
    background: linear-gradient(135deg, var(--electric-fuchsia), var(--neon-ice));
    opacity: 0.2;
    animation: floatDrift 20s ease-in-out infinite;
}
.float-el--line {
    height: 1px;
    background: linear-gradient(90deg, var(--acid-green), var(--spectral-amber));
    opacity: 0.25;
    animation: floatDrift 20s ease-in-out infinite;
}
.float-el--diamond {
    background: linear-gradient(135deg, var(--uv-purple), var(--hot-pink));
    opacity: 0.22;
    transform: rotate(45deg);
    animation: floatDrift 20s ease-in-out infinite;
}
@keyframes floatDrift {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-20px) rotate(5deg); }
    50% { transform: translateY(-35px) rotate(-3deg); }
    75% { transform: translateY(-15px) rotate(8deg); }
}
.float-el--diamond {
    animation-name: floatDriftDiamond;
}
@keyframes floatDriftDiamond {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    25% { transform: rotate(50deg) translateY(-25px); }
    50% { transform: rotate(42deg) translateY(-40px); }
    75% { transform: rotate(55deg) translateY(-18px); }
}

/* ==============================
   ZONES
   ============================== */
.zone {
    position: relative;
    overflow: hidden;
}

/* THE TRUNK */
.zone--trunk {
    min-height: 100vh;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding: 0 8vw 12vh 0;
}
.hero-word {
    font-family: 'Poiret One', sans-serif;
    font-weight: 400;
    font-size: clamp(8rem, 20vw, 16rem);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    line-height: 0.9;
    background: linear-gradient(90deg, var(--electric-fuchsia), var(--neon-ice), var(--acid-green), var(--spectral-amber), var(--uv-purple), var(--electric-fuchsia));
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: holoText 8s linear infinite;
    transition: transform 0.15s ease-out;
}

/* THE RINGS */
.zone--ring {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}
.ring-block {
    max-width: 380px;
    position: relative;
    z-index: 3;
    transition: transform 0.15s ease-out;
}
.ring-block--pos1 { margin-left: 15%; }
.ring-block--pos2 { margin-left: 55%; }
.ring-block--pos3 { margin-left: 25%; }

.ring-label {
    display: block;
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 300;
    font-size: clamp(0.7rem, 1.2vw, 0.85rem);
    letter-spacing: 0.06em;
    color: var(--faded-silver);
    opacity: 0.5;
    margin-bottom: 1.5rem;
}
.ring-heading {
    font-family: 'Poiret One', sans-serif;
    font-weight: 400;
    font-size: clamp(2.4rem, 6vw, 4rem);
    letter-spacing: 0.08em;
    line-height: 1.1;
    color: var(--grain-white);
    margin-bottom: 1.5rem;
}
.ring-text {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.8vw, 1.1rem);
    line-height: 1.8;
    color: var(--grain-white);
    opacity: 0.85;
}

/* THE CANOPY */
.zone--canopy {
    min-height: 50vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.canopy-strip {
    display: flex;
    gap: 24px;
    padding: 0 8vw;
    will-change: transform;
    transition: transform 0.1s linear;
}
.canopy-frame {
    flex-shrink: 0;
    width: 200px;
    height: 200px;
    border: 2px solid;
    border-image: linear-gradient(var(--holo-angle, 0deg), var(--electric-fuchsia), var(--neon-ice), var(--acid-green), var(--spectral-amber), var(--uv-purple), var(--electric-fuchsia)) 1;
    position: relative;
    overflow: hidden;
    transition: transform 0.15s ease-out;
}
.canopy-frame:nth-child(2) { margin-top: -30px; }
.canopy-frame:nth-child(4) { margin-top: 20px; }
.canopy-frame:nth-child(5) { margin-top: -15px; }

.holo-field {
    position: absolute;
    inset: 0;
    opacity: 0.6;
}
.holo-field--1 { background: linear-gradient(135deg, var(--electric-fuchsia), var(--uv-purple)); }
.holo-field--2 { background: linear-gradient(225deg, var(--neon-ice), var(--acid-green)); }
.holo-field--3 { background: linear-gradient(45deg, var(--spectral-amber), var(--hot-pink)); }
.holo-field--4 { background: linear-gradient(180deg, var(--uv-purple), var(--neon-ice)); }
.holo-field--5 { background: linear-gradient(300deg, var(--acid-green), var(--electric-fuchsia)); }
.holo-field--6 { background: linear-gradient(90deg, var(--spectral-amber), var(--neon-ice)); }

/* THE ROOTS */
.zone--roots {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.roots-text {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 300;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    color: var(--grain-white);
    opacity: 0.4;
    text-align: center;
}

/* ==============================
   TILT TARGET
   ============================== */
.tilt-target {
    transform: perspective(600px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
    will-change: transform;
}

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 768px) {
    .grain { opacity: 0.08; }
    .zone--trunk {
        padding: 0 6vw 10vh 0;
    }
    .ring-block--pos1,
    .ring-block--pos2,
    .ring-block--pos3 {
        margin-left: 8%;
        margin-right: 8%;
        max-width: 100%;
    }
    .canopy-frame {
        width: 150px;
        height: 150px;
    }
    .canopy-frame:nth-child(2),
    .canopy-frame:nth-child(4),
    .canopy-frame:nth-child(5) {
        margin-top: 0;
    }
    .spacer--full { min-height: 60vh; }
    .spacer--80 { min-height: 50vh; }
}