/* ============================================
   COMPRESSKIT — DARK LUXURY DESIGN SYSTEM
   ============================================ */

:root {
    --bg: #0F0F0F;
    --bg2: #141414;
    --bg3: #1A1A1A;
    --gold: #C9A84C;
    --gold-dim: #a8873d;
    --gold-faint: #C9A84C18;
    --text: #F0EDE8;
    --text2: #666660;
    --text3: #333330;
    --border: #1e1e1e;
    --border2: #2a2a2a;
    --font-head: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'DM Mono', monospace;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

/* --- Container --- */
.container {
    width: 100%;
    max-width: 880px;
    margin: 0 auto;
    padding: 0 28px;
    position: relative;
    z-index: 1;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
    padding: 28px 0 24px;
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-head);
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    font-weight: 300;
    color: var(--gold);
    letter-spacing: 0.1em;
}

.nav {
    display: flex;
    gap: 28px;
}

.nav-link {
    font-size: 0.68rem;
    color: var(--text3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--gold);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    padding: 56px 0 36px;
    text-align: center;
}

.hero-headline {
    font-family: var(--font-head);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 300;
    color: var(--text);
    letter-spacing: 0.02em;
    line-height: 1.2;
    margin-bottom: 12px;
}

.hero-headline em {
    color: var(--gold);
    font-style: normal;
}

.hero-sub {
    font-size: 0.78rem;
    color: var(--text2);
    letter-spacing: 0.06em;
    margin-bottom: 36px;
}

/* Stats Bar */
.stats-bar {
    display: inline-flex;
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.stat {
    padding: 14px 32px;
    text-align: center;
    border-right: 1px solid var(--border);
}

.stat:last-child {
    border-right: none;
}

.stat-num {
    display: block;
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--gold);
    margin-bottom: 3px;
}

.stat-lbl {
    display: block;
    font-size: 0.6rem;
    color: var(--text3);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ============================================
   UPLOAD ZONE
   ============================================ */
.site-main {
    padding-bottom: 80px;
}

.upload-zone {
    border: 1px dashed var(--gold-dim);
    border-radius: 6px;
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    background: rgba(20, 20, 20, 0.82);
    margin-bottom: 20px;
    transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
    position: relative;
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--gold);
    background: rgba(26, 26, 26, 0.9);
    box-shadow: 0 0 48px rgba(201, 168, 76, 0.06);
}

.upload-icon-circle {
    width: 52px;
    height: 52px;
    border: 1px solid rgba(201, 168, 76, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.upload-zone:hover .upload-icon-circle {
    border-color: var(--gold);
    box-shadow: 0 0 16px rgba(201, 168, 76, 0.15);
}

.upload-icon-circle svg {
    width: 20px;
    height: 20px;
}

.upload-title {
    font-family: var(--font-head);
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 300;
    color: var(--text);
    letter-spacing: 0.04em;
    margin-bottom: 6px;
}

.upload-hint {
    font-size: 0.68rem;
    color: var(--text3);
    letter-spacing: 0.07em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.format-tags {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.fmt-tag {
    font-size: 0.6rem;
    color: var(--text3);
    border: 1px solid var(--border2);
    padding: 3px 12px;
    border-radius: 2px;
    letter-spacing: 0.06em;
}

/* ============================================
   CONTROLS ROW
   ============================================ */
.controls-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.control-box {
    background: rgba(20, 20, 20, 0.85);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 20px 22px;
}

.control-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text2);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.gold {
    color: var(--gold);
}

/* Range Slider */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 2px;
    background: var(--border2);
    outline: none;
    border-radius: 2px;
    margin-bottom: 8px;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--gold);
    border: 2px solid var(--bg);
    box-shadow: 0 0 8px rgba(201, 168, 76, 0.4);
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--gold);
    border: 2px solid var(--bg);
    cursor: pointer;
}

.slider-hints {
    display: flex;
    justify-content: space-between;
    font-size: 0.62rem;
    color: var(--text3);
    letter-spacing: 0.04em;
}

/* Format Pills */
.format-pills {
    display: flex;
    gap: 8px;
}

.pill {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    padding: 6px 16px;
    border-radius: 2px;
    border: 1px solid var(--border2);
    background: transparent;
    color: var(--text2);
    cursor: pointer;
    letter-spacing: 0.06em;
    transition: all 0.2s;
}

.pill:hover {
    border-color: var(--gold-dim);
    color: var(--gold-dim);
}

.pill.active {
    border-color: rgba(201, 168, 76, 0.4);
    color: var(--gold);
    background: rgba(201, 168, 76, 0.06);
}

/* ============================================
   SIZE ESTIMATE BAR
   ============================================ */
.size-estimate {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text2);
    text-align: center;
    margin-bottom: 20px;
    letter-spacing: 0.06em;
    padding: 12px;
    background: rgba(20, 20, 20, 0.6);
    border: 1px solid var(--border);
    border-radius: 4px;
}

.size-arrow {
    margin: 0 12px;
    color: var(--text3);
}

.savings-badge {
    display: inline-block;
    margin-left: 14px;
    background: rgba(201, 168, 76, 0.1);
    border: 1px solid rgba(201, 168, 76, 0.25);
    color: var(--gold);
    font-size: 0.68rem;
    padding: 2px 10px;
    border-radius: 2px;
    letter-spacing: 0.06em;
}

/* ============================================
   BEFORE / AFTER PREVIEW
   ============================================ */
.preview-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.preview-panel {
    background: rgba(20, 20, 20, 0.85);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 20px;
    text-align: center;
}

.preview-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--text3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.preview-panel img {
    width: 100%;
    height: 180px;
    object-fit: contain;
    border-radius: 2px;
    margin-bottom: 10px;
}

.preview-size {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text2);
}

/* ============================================
   DOWNLOAD BUTTON
   ============================================ */
.download-section {
    text-align: center;
    padding: 8px 0 0;
}

.btn-download {
    background: transparent;
    border: 1px solid var(--gold);
    color: var(--gold);
    font-family: var(--font-body);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 16px 56px;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 16px;
}

.btn-download:hover {
    background: var(--gold);
    color: var(--bg);
}

.reset-link {
    font-size: 0.68rem;
    color: var(--text3);
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: color 0.2s;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.reset-link:hover {
    color: var(--text2);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 22px 0;
    position: relative;
    z-index: 1;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-left {
    font-size: 0.68rem;
    color: var(--text3);
    letter-spacing: 0.04em;
}

.footer-badge {
    font-size: 0.62rem;
    color: rgba(201, 168, 76, 0.35);
    border: 1px solid rgba(201, 168, 76, 0.15);
    padding: 3px 12px;
    border-radius: 2px;
    letter-spacing: 0.06em;
    font-family: var(--font-mono);
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */
@media (max-width: 640px) {
    .hero {
        padding: 36px 0 24px;
    }

    .stats-bar {
        flex-direction: column;
        width: 100%;
    }

    .stat {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .stat:last-child {
        border-bottom: none;
    }

    .controls-row {
        grid-template-columns: 1fr;
    }

    .preview-row {
        grid-template-columns: 1fr;
    }

    .upload-zone {
        padding: 44px 24px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .nav {
        display: none;
    }
}