/* ============================================
   MMIDDL.com — Styles
   Frutiger Aero / Broken Grid / Earthy Grounding
   ============================================ */

/* ---------- CSS Variables (Palette) ---------- */
:root {
    --deep-ground: #1a2a1f;
    --sky-wash: #e3eff5;
    --teal-anchor: #2a7a6e;
    --amber-signal: #d4853a;
    --acrylic-frost: rgba(240, 246, 250, 0.72);
    --acrylic-frost-solid: #f0f6fa;
    --moss-accent: #5c8a6e;
    --data-glow: #4ecdc4;
    --soil-dark: #0f1a14;

    /* Typography */
    --font-display: 'Recursive', sans-serif;
    --font-body: 'Source Sans 3', sans-serif;

    /* Spacing */
    --gutter: 20px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.65;
    color: var(--deep-ground);
    background-color: var(--sky-wash);
    overflow-x: hidden;
    position: relative;
}

/* ---------- Noise Grain Overlay ---------- */
#noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%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)'/%3E%3C/svg%3E");
    background-repeat: repeat;
}

/* ---------- SECTION 1: Specimen Hero ---------- */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background-color: var(--deep-ground);
}

.hero-duotone-bg {
    position: absolute;
    inset: 0;
    background-color: var(--teal-anchor);
    z-index: 1;
}

.hero-image-layer {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: 
        radial-gradient(ellipse at 30% 40%, rgba(26, 42, 31, 0.3) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 60%, rgba(42, 122, 110, 0.4) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(26, 42, 31, 0.6) 0%, transparent 40%),
        linear-gradient(170deg, rgba(42, 122, 110, 0.2) 0%, rgba(26, 42, 31, 0.8) 100%);
    mix-blend-mode: multiply;
}

/* Leaf veins / organic pattern via CSS */
.hero-image-layer::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 25% 35%, rgba(78, 205, 196, 0.15) 0%, transparent 30%),
        radial-gradient(circle at 65% 25%, rgba(92, 138, 110, 0.2) 0%, transparent 25%),
        radial-gradient(circle at 45% 70%, rgba(78, 205, 196, 0.1) 0%, transparent 35%),
        radial-gradient(circle at 80% 50%, rgba(212, 133, 58, 0.08) 0%, transparent 20%);
}

.hero-image-layer::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        /* Vein-like lines using gradients */
        linear-gradient(135deg, transparent 48%, rgba(92, 138, 110, 0.12) 49%, rgba(92, 138, 110, 0.12) 51%, transparent 52%),
        linear-gradient(115deg, transparent 45%, rgba(78, 205, 196, 0.08) 46%, rgba(78, 205, 196, 0.08) 48%, transparent 49%),
        linear-gradient(155deg, transparent 52%, rgba(92, 138, 110, 0.1) 53%, rgba(92, 138, 110, 0.1) 55%, transparent 56%),
        linear-gradient(125deg, transparent 38%, rgba(42, 122, 110, 0.06) 39%, rgba(42, 122, 110, 0.06) 41%, transparent 42%);
}

/* Aperture rings */
.aperture-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    pointer-events: none;
}

.aperture-ring {
    position: absolute;
    border: 1px solid rgba(92, 138, 110, 0.2);
    border-radius: 50%;
    transform-origin: center;
}

.ring-1 {
    width: 500px;
    height: 500px;
    top: -250px;
    left: -250px;
    border-color: rgba(78, 205, 196, 0.15);
    border-style: solid;
    clip-path: polygon(0 0, 100% 0, 100% 50%, 0 50%);
    animation: aperture-rotate 60s linear infinite;
}

.ring-2 {
    width: 700px;
    height: 700px;
    top: -350px;
    left: -350px;
    border-color: rgba(92, 138, 110, 0.1);
    clip-path: polygon(0 25%, 75% 25%, 75% 100%, 0 100%);
    animation: aperture-rotate 60s linear infinite reverse;
}

.ring-3 {
    width: 350px;
    height: 350px;
    top: -175px;
    left: -175px;
    border-color: rgba(212, 133, 58, 0.12);
    clip-path: polygon(50% 0, 100% 0, 100% 100%, 50% 100%);
    animation: aperture-rotate 45s linear infinite;
}

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

/* Hero wordmark panel - acrylic */
.hero-wordmark-panel {
    position: absolute;
    top: 18%;
    left: 8%;
    z-index: 10;
    padding: 40px 50px;
    background: var(--acrylic-frost);
    backdrop-filter: blur(16px) saturate(1.3);
    -webkit-backdrop-filter: blur(16px) saturate(1.3);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    border-left: 1px solid rgba(255, 255, 255, 0.3);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.wordmark {
    font-family: var(--font-display);
    font-weight: 800;
    font-variation-settings: 'CASL' 0.3, 'MONO' 0;
    font-size: clamp(2.4rem, 6vw, 5.5rem);
    color: var(--deep-ground);
    letter-spacing: -0.02em;
    line-height: 1;
    display: flex;
    gap: 0.02em;
}

.wm-letter {
    display: inline-block;
    opacity: 0;
    transform: translateY(-20px);
}

.wm-letter.visible {
    opacity: 1;
    transform: translateY(0);
}

.wordmark-subtitle {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(0.85rem, 1.2vw, 1rem);
    color: var(--teal-anchor);
    margin-top: 12px;
    letter-spacing: 0.04em;
    opacity: 0;
    transition: opacity 0.8s ease 1.2s;
}

.wordmark-subtitle.visible {
    opacity: 1;
}

/* Hero bottom line */
.hero-line {
    position: absolute;
    bottom: 40px;
    left: 0;
    height: 1px;
    width: 0;
    background-color: var(--data-glow);
    z-index: 10;
    transition: width 3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.hero-line.drawn {
    width: 100%;
}

/* ---------- SECTION 2: Dispersal Zone ---------- */
.dispersal-section {
    position: relative;
    padding: 120px 0 80px;
    background-color: var(--sky-wash);
    min-height: 100vh;
}

.dispersal-grid {
    display: grid;
    grid-template-columns: repeat(16, 1fr);
    gap: var(--gutter);
    padding: 0 var(--gutter);
    max-width: 1440px;
    margin: 0 auto;
}

.dispersal-card {
    position: relative;
    transform: rotate(var(--rotation, 0deg));
    opacity: 0;
    transition: transform 0.1s;
}

.dispersal-card.entered {
    opacity: 1;
}

.card-1 {
    grid-column: 1 / 8;
    margin-top: 0;
}

.card-2 {
    grid-column: 9 / 16;
    margin-top: 60px;
}

.card-3 {
    grid-column: 3 / 12;
    margin-top: -40px;
}

.card-4 {
    grid-column: 8 / 17;
    margin-top: 80px;
}

.card-acrylic {
    padding: 32px 36px;
    background: var(--acrylic-frost);
    backdrop-filter: blur(16px) saturate(1.3);
    -webkit-backdrop-filter: blur(16px) saturate(1.3);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    border-left: 1px solid rgba(255, 255, 255, 0.3);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    z-index: 2;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
}

.dispersal-card:hover .card-acrylic {
    transform: scale(1.02) translateY(-4px);
    box-shadow: 0 12px 40px rgba(15, 26, 20, 0.15);
}

/* Calibration crosshairs */
.card-crosshair {
    position: absolute;
    width: 20px;
    height: 20px;
    z-index: 1;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.dispersal-card.entered .card-crosshair,
.taxonomy-card.entered .card-crosshair {
    opacity: 1;
}

.card-crosshair.top-left {
    top: -4px;
    left: -4px;
    border-top: 1px solid rgba(92, 138, 110, 0.4);
    border-left: 1px solid rgba(92, 138, 110, 0.4);
}

.card-crosshair.bottom-right {
    bottom: -4px;
    right: -4px;
    border-bottom: 1px solid rgba(92, 138, 110, 0.4);
    border-right: 1px solid rgba(92, 138, 110, 0.4);
}

/* Grid ticks on cards */
.card-acrylic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    right: 20px;
    height: 0;
    border-top: 1px solid transparent;
    background-image: repeating-linear-gradient(
        90deg,
        rgba(92, 138, 110, 0.3) 0px,
        rgba(92, 138, 110, 0.3) 5px,
        transparent 5px,
        transparent 30px
    );
    background-size: 30px 1px;
    background-repeat: repeat-x;
    background-position: top;
    height: 1px;
}

.card-label {
    display: block;
    font-family: var(--font-display);
    font-weight: 400;
    font-variation-settings: 'CASL' 0, 'MONO' 1;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    color: var(--teal-anchor);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.card-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-variation-settings: 'CASL' 0, 'MONO' 0;
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    color: var(--deep-ground);
    letter-spacing: 0.01em;
    margin-bottom: 12px;
    line-height: 1.2;
}

.card-body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(0.95rem, 1.1vw, 1.1rem);
    line-height: 1.65;
    color: var(--deep-ground);
    margin-bottom: 16px;
}

.card-meta {
    display: block;
    font-family: var(--font-display);
    font-weight: 400;
    font-variation-settings: 'CASL' 0, 'MONO' 1;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    color: var(--moss-accent);
}

/* Coordinate dots container */
.coordinate-dots {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.coord-dot {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: var(--data-glow);
    opacity: 0;
    transition: opacity 1s ease;
}

.coord-dot.visible {
    opacity: 0.5;
}

/* ---------- SECTION 3: Meridian Band ---------- */
.meridian-section {
    position: relative;
    width: 100%;
    height: 60vh;
    min-height: 400px;
    overflow: hidden;
    background-color: var(--deep-ground);
}

.meridian-duotone-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(90deg, var(--teal-anchor) 0%, var(--amber-signal) 100%);
}

.meridian-image-layer {
    position: absolute;
    inset: 0;
    z-index: 2;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(26, 42, 31, 0.6) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(26, 42, 31, 0.4) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 30%, rgba(15, 26, 20, 0.3) 0%, transparent 40%),
        linear-gradient(180deg, rgba(15, 26, 20, 0.2) 0%, rgba(26, 42, 31, 0.6) 100%);
    mix-blend-mode: multiply;
}

/* Panoramic texture */
.meridian-image-layer::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(92, 138, 110, 0.03) 3px, rgba(92, 138, 110, 0.03) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 8px, rgba(78, 205, 196, 0.02) 8px, rgba(78, 205, 196, 0.02) 9px);
}

/* Frequency waves */
.frequency-wave {
    position: absolute;
    width: 100%;
    height: 100px;
    z-index: 3;
    pointer-events: none;
}

.wave-1 {
    top: 30%;
}

.wave-2 {
    top: 55%;
}

.wave-path {
    fill: none;
    stroke: var(--teal-anchor);
    stroke-width: 0.5;
    opacity: 0.2;
}

/* Meridian readouts */
.meridian-readouts {
    position: absolute;
    inset: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0 5%;
    gap: 30px;
}

.readout {
    opacity: 0;
}

.readout.entered {
    opacity: 1;
}

.readout-acrylic {
    padding: 24px 30px;
    background: var(--acrylic-frost);
    backdrop-filter: blur(16px) saturate(1.3);
    -webkit-backdrop-filter: blur(16px) saturate(1.3);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    border-left: 1px solid rgba(255, 255, 255, 0.3);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    min-width: 220px;
}

.readout-label {
    display: block;
    font-family: var(--font-display);
    font-weight: 400;
    font-variation-settings: 'CASL' 0, 'MONO' 1;
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    color: var(--teal-anchor);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.readout-value {
    display: block;
    font-family: var(--font-display);
    font-weight: 600;
    font-variation-settings: 'CASL' 0, 'MONO' 0;
    font-size: 1rem;
    color: var(--deep-ground);
    margin-bottom: 12px;
}

.readout-bar {
    height: 4px;
    background: rgba(26, 42, 31, 0.1);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.readout-bar-fill {
    height: 100%;
    width: var(--fill, 0%);
    background: var(--teal-anchor);
    border-radius: 2px;
    transition: width 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.dual-bar {
    display: flex;
    gap: 2px;
}

.dual-bar .teal-fill {
    background: var(--teal-anchor);
}

.dual-bar .amber-fill {
    background: var(--amber-signal);
}

.readout-indicator {
    display: flex;
    gap: 6px;
    margin-top: 4px;
}

.indicator-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(26, 42, 31, 0.15);
}

.indicator-dot.active {
    background: var(--data-glow);
}

/* ---------- SECTION 4: Taxonomy Cluster ---------- */
.taxonomy-section {
    position: relative;
    padding: 100px 0 120px;
    background-color: var(--sky-wash);
    min-height: 80vh;
}

.taxonomy-grid {
    display: grid;
    grid-template-columns: repeat(16, 1fr);
    gap: var(--gutter);
    padding: 0 var(--gutter);
    max-width: 1440px;
    margin: 0 auto;
}

.taxonomy-card {
    position: relative;
    opacity: 0;
}

.taxonomy-card.entered {
    opacity: 1;
}

.tax-1 {
    grid-column: 1 / 7;
    margin-top: 0;
}

.tax-2 {
    grid-column: 8 / 14;
    margin-top: 50px;
}

.tax-3 {
    grid-column: 3 / 9;
    margin-top: -20px;
}

.tax-4 {
    grid-column: 10 / 17;
    margin-top: 40px;
}

.tax-5 {
    grid-column: 1 / 8;
    margin-top: -10px;
}

.tax-6 {
    grid-column: 9 / 15;
    margin-top: 60px;
}

.tax-acrylic {
    padding: 24px 28px;
    background: var(--acrylic-frost);
    backdrop-filter: blur(16px) saturate(1.3);
    -webkit-backdrop-filter: blur(16px) saturate(1.3);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    border-left: 1px solid rgba(255, 255, 255, 0.3);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
}

.taxonomy-card:hover .tax-acrylic {
    transform: scale(1.02) translateY(-4px);
    box-shadow: 0 12px 40px rgba(15, 26, 20, 0.15);
}

.tax-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-weight: 400;
    font-variation-settings: 'CASL' 0, 'MONO' 1;
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--acrylic-frost-solid);
    background: var(--teal-anchor);
    padding: 3px 10px;
    margin-bottom: 12px;
}

.tax-2 .tax-tag { background: var(--amber-signal); }
.tax-4 .tax-tag { background: var(--amber-signal); }
.tax-6 .tax-tag { background: var(--amber-signal); }

.tax-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-variation-settings: 'CASL' 0, 'MONO' 0;
    font-size: clamp(1.1rem, 2vw, 1.6rem);
    color: var(--deep-ground);
    letter-spacing: 0.01em;
    margin-bottom: 8px;
    line-height: 1.25;
}

.tax-desc {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(0.9rem, 1vw, 1rem);
    line-height: 1.65;
    color: var(--deep-ground);
}

/* ---------- SECTION 5: Ground Plane (Footer) ---------- */
.ground-section {
    position: relative;
    width: 100%;
    min-height: 40vh;
    background-color: var(--soil-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.footer-aperture-rings {
    position: absolute;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.ring-4 {
    position: absolute;
    width: 300px;
    height: 300px;
    top: -150px;
    left: -150px;
    border: 1px solid rgba(92, 138, 110, 0.12);
    border-radius: 50%;
    clip-path: polygon(0 0, 100% 0, 100% 60%, 0 60%);
    animation: aperture-rotate 60s linear infinite;
}

.ring-5 {
    position: absolute;
    width: 450px;
    height: 450px;
    top: -225px;
    left: -225px;
    border: 1px solid rgba(78, 205, 196, 0.08);
    border-radius: 50%;
    clip-path: polygon(30% 0, 100% 0, 100% 100%, 30% 100%);
    animation: aperture-rotate 60s linear infinite reverse;
}

.ground-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 60px 20px;
}

.ground-wordmark {
    font-family: var(--font-display);
    font-weight: 800;
    font-variation-settings: 'CASL' 0.3, 'MONO' 0;
    font-size: clamp(2rem, 4vw, 3.5rem);
    color: var(--sky-wash);
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    opacity: 0.9;
}

.ground-tagline {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(0.95rem, 1.2vw, 1.15rem);
    color: var(--sky-wash);
    opacity: 0.6;
    margin-bottom: 24px;
}

.ground-meta {
    display: flex;
    justify-content: center;
    gap: 12px;
    font-family: var(--font-display);
    font-weight: 400;
    font-variation-settings: 'CASL' 0, 'MONO' 1;
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    color: var(--moss-accent);
    opacity: 0.5;
}

/* ---------- Spring Entry Animation Placeholder ---------- */
.spring-entry {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
}

.spring-entry.entered {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* ---------- Responsive: Tablet ---------- */
@media (max-width: 1024px) {
    .dispersal-grid,
    .taxonomy-grid {
        grid-template-columns: repeat(8, 1fr);
    }

    .card-1 { grid-column: 1 / 6; }
    .card-2 { grid-column: 4 / 9; margin-top: 40px; }
    .card-3 { grid-column: 2 / 7; }
    .card-4 { grid-column: 3 / 9; margin-top: 50px; }

    .tax-1 { grid-column: 1 / 5; }
    .tax-2 { grid-column: 4 / 9; }
    .tax-3 { grid-column: 1 / 6; }
    .tax-4 { grid-column: 4 / 9; }
    .tax-5 { grid-column: 1 / 5; }
    .tax-6 { grid-column: 4 / 9; }

    .meridian-readouts {
        flex-direction: column;
        padding: 20px 10%;
        gap: 16px;
    }

    .readout-acrylic {
        min-width: auto;
    }

    .hero-wordmark-panel {
        top: 15%;
        left: 5%;
        padding: 30px 35px;
    }
}

/* ---------- Responsive: Mobile ---------- */
@media (max-width: 640px) {
    .dispersal-grid,
    .taxonomy-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .card-1, .card-2, .card-3, .card-4 {
        grid-column: 1 / 5;
        margin-top: 24px;
    }

    .card-1 { margin-top: 0; }

    .tax-1, .tax-2, .tax-3, .tax-4, .tax-5, .tax-6 {
        grid-column: 1 / 5;
        margin-top: 20px;
    }

    .tax-1 { margin-top: 0; }

    .dispersal-card {
        transform: rotate(0deg) !important;
    }

    .hero-wordmark-panel {
        top: 25%;
        left: 5%;
        right: 5%;
        padding: 24px 28px;
    }

    .meridian-readouts {
        flex-direction: column;
        padding: 20px 5%;
        gap: 12px;
    }

    .ground-meta {
        flex-wrap: wrap;
        justify-content: center;
    }

    .aperture-rings {
        display: none;
    }

    .ring-1, .ring-2, .ring-3 {
        display: none;
    }
}