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

:root {
    --bg: #0a0a0f;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --accent: rgb(140, 226, 54);
    --accent-dim: rgb(98, 158, 38);
    --text: #e8e8ec;
    --text-dim: #888899;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --font-brand: 'Michroma', system-ui, sans-serif;
    --border: rgba(255, 255, 255, 0.08);
    --glow-accent: 0 0 40px rgba(140, 226, 54, 0.15);
    --accent-r: 140;
    --accent-g: 226;
    --accent-b: 54;
}

html {
    scroll-behavior: smooth;
}

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

/* ===== 3D Hero Section ===== */
#hero-wrapper {
    position: relative;
    height: 200vh; /* scroll room: 100vh visible + 100vh of scroll travel */
}

#hero-3d {
    position: sticky;
    top: 0;
    width: 100%;
    height: 100vh;
    background: var(--bg);
}

#hero-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.scroll-hint {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    text-transform: uppercase;
    z-index: 11;
    pointer-events: none;
    animation: pulse-hint 2s ease-in-out infinite;
    transition: opacity 0.5s;
}

.scroll-hint.hidden {
    opacity: 0;
}

@keyframes pulse-hint {
    0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.8; transform: translateX(-50%) translateY(-5px); }
}

/* ===== Page Nav ===== */
.page-nav {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
}

.nav-brand {
    text-decoration: none;
    display: inline-block;
}

.nav-keuser {
    display: block;
    font-family: var(--font-brand);
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    color: var(--text);
}

.nav-industries {
    display: block;
    font-family: var(--font-brand);
    font-size: 0.35rem;
    letter-spacing: 0.45em;
    color: var(--text-dim);
}

/* ===== Sections ===== */
.section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section-title {
    font-family: var(--font-brand);
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 2.5rem;
}

.section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.section-header .section-title {
    margin-bottom: 0;
}

.ideas-refresh-note {
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.inline-icon {
    display: inline-flex;
    width: 14px;
    height: 14px;
}

.inline-icon svg {
    width: 100%;
    height: 100%;
}

/* ===== Cards ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s, transform 0.3s;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    text-decoration: none;
    color: var(--text);
    display: block;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.25);
    box-shadow: var(--glow-accent);
    transform: translateY(-4px);
}

.card-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 1.2rem;
    color: var(--accent);
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

.card-title {
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    margin-bottom: 0.6rem;
}

.card-desc {
    font-size: 0.7rem;
    color: var(--text-dim);
    line-height: 1.7;
    letter-spacing: 0.03em;
}

.card-tag {
    display: inline-block;
    margin-top: 1.2rem;
    font-size: 0.55rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.3em 0.8em;
    border-radius: 0;
}

.card-tag.live {
    background: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.15);
    color: var(--accent);
    border: 1px solid rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.3);
}

.card-tag.coming {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-dim);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-tag.idea-tag {
    background: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.1);
    color: var(--accent);
    border: 1px solid rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.25);
}

a.card {
    cursor: pointer;
}

.placeholder-card {
    cursor: default;
    opacity: 0.6;
}

.placeholder-card:hover {
    transform: none;
    box-shadow: none;
}

/* ===== Icon Library ===== */
.icon-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    align-items: center;
}

.icon-search-input {
    flex: 1;
    min-width: 200px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 0;
    padding: 0.7rem 1rem;
    color: var(--text);
    font-family: var(--font);
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    outline: none;
    transition: border-color 0.3s;
}

.icon-search-input:focus {
    border-color: var(--accent);
}

.icon-search-input::placeholder {
    color: var(--text-dim);
}

.icon-filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 0;
    padding: 0.5rem 0.9rem;
    color: var(--text-dim);
    font-family: var(--font);
    font-size: 0.55rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    border-color: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.3);
    color: var(--text);
}

.filter-btn.active {
    background: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.15);
    border-color: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.4);
    color: var(--accent);
}

.icon-count {
    font-size: 0.6rem;
    color: var(--text-dim);
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.icon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 1px;
    margin-bottom: 3rem;
    background: var(--border);
}

.icon-tile {
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.2rem 0.5rem;
    gap: 0.6rem;
    cursor: pointer;
    transition: background 0.2s;
    position: relative;
}

.icon-tile:hover {
    background: rgba(255, 255, 255, 0.06);
}

.icon-tile svg {
    width: 28px;
    height: 28px;
    color: var(--text-dim);
    transition: color 0.2s;
}

.icon-tile:hover svg {
    color: var(--accent);
}

.icon-tile-name {
    font-size: 0.5rem;
    color: var(--text-dim);
    letter-spacing: 0.05em;
    text-align: center;
    word-break: break-all;
}

.icon-tile-copied {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.15);
    color: var(--accent);
    font-family: var(--font);
    font-size: 0.55rem;
    letter-spacing: 0.1em;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.icon-tile-copied.show {
    opacity: 1;
}

.icon-tile.hidden {
    display: none;
}

/* Request Box */
.icon-request-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 2rem;
}

.icon-request-title {
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.icon-request-desc {
    font-size: 0.65rem;
    color: var(--text-dim);
    margin-bottom: 1.5rem;
    letter-spacing: 0.03em;
}

.icon-request-form {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.icon-input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 0;
    padding: 0.7rem 1rem;
    color: var(--text);
    font-family: var(--font);
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    outline: none;
    resize: vertical;
    transition: border-color 0.3s;
}

.icon-input:focus {
    border-color: var(--accent);
}

.icon-input::placeholder {
    color: var(--text-dim);
}

.icon-textarea {
    min-height: 70px;
}

.icon-submit-btn {
    align-self: flex-start;
    background: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.15);
    border: 1px solid rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.4);
    border-radius: 0;
    padding: 0.6rem 1.5rem;
    color: var(--accent);
    font-family: var(--font);
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
}

.icon-submit-btn:hover {
    background: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.25);
    border-color: var(--accent);
}

.icon-request-status {
    margin-top: 0.8rem;
    font-size: 0.6rem;
    letter-spacing: 0.05em;
}

.icon-request-status.success {
    color: var(--accent);
}

.icon-request-status.error {
    color: #ff5555;
}

/* ===== Fade-in Animation ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Footer ===== */
.ki-footer {
    text-align: center;
    padding: 4rem 2rem 3rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

.ki-footer-brand {
    display: inline-block;
}

.ki-footer-name {
    display: block;
    font-family: var(--font-brand);
    font-size: 1.2rem;
    letter-spacing: 0.2em;
    color: var(--text-dim);
}

.ki-footer-sub {
    display: block;
    font-family: var(--font-brand);
    font-size: 0.5rem;
    letter-spacing: 0.5em;
    color: rgba(136, 136, 153, 0.5);
    margin-top: 0.2rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .section {
        padding: 3rem 1.2rem;
    }

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

    .card {
        padding: 1.5rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
}