/* ╔══════════════════════════════════════════════════════════════════╗
   ║  sub-protocol Storefront — Styles                               ║
   ║  CryptoForge Store #5 · Dark Industrial Theme                   ║
   ╚══════════════════════════════════════════════════════════════════╝ */

/* ── CSS Variables ──────────────────────────────────────────────── */

:root {
    /* Brand */
    --cf-primary: #FF6B00;
    --cf-primary-hover: #FF8533;
    --cf-primary-glow: rgba(255, 107, 0, 0.3);

    /* Backgrounds */
    --cf-bg: #0D0D1A;
    --cf-bg-alt: #0A0A14;
    --cf-surface: #141420;
    --cf-surface-hover: #1A1A2E;
    --cf-surface-border: #1E1E35;

    /* Text */
    --cf-text: #E8E8F0;
    --cf-text-muted: #8888A0;
    --cf-text-dim: #555570;

    /* Accents */
    --cf-accent-green: #00CC88;
    --cf-accent-blue: #3388FF;
    --cf-accent-purple: #8844FF;
    --cf-accent-red: #FF4444;

    /* Typography */
    --cf-font-heading: 'JetBrains Mono', monospace;
    --cf-font-body: 'Inter', -apple-system, sans-serif;

    /* Spacing */
    --cf-section-padding: 6rem 2rem;
    --cf-card-padding: 1.5rem;
    --cf-card-radius: 12px;
    --cf-gap: 1.5rem;

    /* Effects */
    --cf-nav-blur: blur(16px);
    --cf-transition: 0.2s ease;
}

/* ── Reset ──────────────────────────────────────────────────────── */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--cf-primary);
    text-decoration: none;
    transition: color var(--cf-transition);
}

a:hover {
    color: var(--cf-primary-hover);
}

/* ── Navigation ─────────────────────────────────────────────────── */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 13, 26, 0.8);
    backdrop-filter: var(--cf-nav-blur);
    -webkit-backdrop-filter: var(--cf-nav-blur);
    border-bottom: 1px solid var(--cf-surface-border);
    transition: background var(--cf-transition);
}

.nav__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--cf-text);
    font-family: var(--cf-font-heading);
    font-weight: 700;
    font-size: 1rem;
}

.nav__logo:hover { color: var(--cf-primary); }

.nav__logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--cf-primary);
    color: #000;
    font-family: var(--cf-font-heading);
    font-weight: 700;
    font-size: 0.75rem;
    border-radius: 6px;
}

.nav__links {
    display: flex;
    gap: 1.5rem;
}

.nav__link {
    color: var(--cf-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--cf-transition);
}

.nav__link:hover { color: var(--cf-text); }

.nav__cta { white-space: nowrap; }

@media (max-width: 768px) {
    .nav__links { display: none; }
}

/* ── Buttons ────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--cf-font-heading);
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--cf-transition);
    text-decoration: none;
}

.btn--sm { padding: 0.5rem 1rem; font-size: 0.8125rem; }
.btn--lg { padding: 0.875rem 2rem; font-size: 1rem; }
.btn--block { width: 100%; }

.btn--primary {
    background: var(--cf-primary);
    color: #000;
}

.btn--primary:hover {
    background: var(--cf-primary-hover);
    color: #000;
    box-shadow: 0 0 24px var(--cf-primary-glow);
}

.btn--ghost {
    background: transparent;
    color: var(--cf-text);
    border: 1px solid var(--cf-surface-border);
}

.btn--ghost:hover {
    background: var(--cf-surface);
    border-color: var(--cf-primary);
    color: var(--cf-primary);
}

/* ── Hero ───────────────────────────────────────────────────────── */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
}

.hero__bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 107, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 107, 0, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.hero__content {
    position: relative;
    max-width: 800px;
    text-align: center;
}

.hero__badge {
    display: inline-block;
    font-family: var(--cf-font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--cf-primary);
    background: rgba(255, 107, 0, 0.1);
    border: 1px solid rgba(255, 107, 0, 0.2);
    padding: 0.375rem 1rem;
    border-radius: 999px;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.hero__title {
    font-family: var(--cf-font-heading);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--cf-text) 0%, var(--cf-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    display: block;
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    font-weight: 400;
    color: var(--cf-text-muted);
    -webkit-text-fill-color: var(--cf-text-muted);
    margin-top: 0.5rem;
}

.hero__description {
    font-size: 1.125rem;
    color: var(--cf-text-muted);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero__stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero__stat-value {
    font-family: var(--cf-font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--cf-primary);
}

.hero__stat-label {
    font-size: 0.75rem;
    color: var(--cf-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ── Sections ───────────────────────────────────────────────────── */

.section {
    padding: var(--cf-section-padding);
}

.section__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.section__title {
    font-family: var(--cf-font-heading);
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
}

.section__subtitle {
    text-align: center;
    color: var(--cf-text-muted);
    margin-bottom: 3rem;
    font-size: 1.0625rem;
}

/* ── Bundles ────────────────────────────────────────────────────── */

.bundles { background: var(--cf-bg-alt); }

.bundles__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.bundle-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-surface-border);
    border-radius: var(--cf-card-radius);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: border-color var(--cf-transition), box-shadow var(--cf-transition);
}

.bundle-card:hover {
    border-color: rgba(255, 107, 0, 0.3);
}

.bundle-card--featured {
    border-color: var(--cf-primary);
    box-shadow: 0 0 40px var(--cf-primary-glow);
    position: relative;
}

.bundle-card__header { margin-bottom: 1.5rem; }

.bundle-card__badge {
    display: inline-block;
    font-family: var(--cf-font-heading);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--cf-accent-green);
    background: rgba(0, 204, 136, 0.1);
    border: 1px solid rgba(0, 204, 136, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.bundle-card__badge--pro {
    color: var(--cf-primary);
    background: rgba(255, 107, 0, 0.1);
    border-color: rgba(255, 107, 0, 0.2);
}

.bundle-card__title {
    font-family: var(--cf-font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.bundle-card__desc {
    color: var(--cf-text-muted);
    font-size: 0.9375rem;
}

.bundle-card__pricing {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.bundle-card__price {
    font-family: var(--cf-font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--cf-text);
}

.bundle-card__original {
    font-size: 1rem;
    color: var(--cf-text-dim);
    text-decoration: line-through;
}

.bundle-card__savings {
    font-family: var(--cf-font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--cf-accent-green);
    background: rgba(0, 204, 136, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.bundle-card__items {
    list-style: none;
    margin-bottom: 2rem;
    flex: 1;
}

.bundle-card__items li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--cf-surface-border);
    color: var(--cf-text-muted);
    font-size: 0.9375rem;
}

.bundle-card__items li::before {
    content: "\2713";
    color: var(--cf-accent-green);
    margin-right: 0.75rem;
    font-weight: 700;
}

/* ── Products ───────────────────────────────────────────────────── */

.products__filters {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-tab {
    font-family: var(--cf-font-heading);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--cf-text-muted);
    background: transparent;
    border: 1px solid var(--cf-surface-border);
    padding: 0.5rem 1.25rem;
    border-radius: 999px;
    cursor: pointer;
    transition: all var(--cf-transition);
}

.filter-tab:hover {
    color: var(--cf-text);
    border-color: var(--cf-text-dim);
}

.filter-tab--active {
    color: #000;
    background: var(--cf-primary);
    border-color: var(--cf-primary);
}

.products__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--cf-gap);
}

.product-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-surface-border);
    border-radius: var(--cf-card-radius);
    padding: var(--cf-card-padding);
    display: flex;
    flex-direction: column;
    transition: border-color var(--cf-transition), transform var(--cf-transition);
}

.product-card:hover {
    border-color: rgba(255, 107, 0, 0.3);
    transform: translateY(-2px);
}

.product-card--hidden { display: none; }

.product-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.product-card__number {
    font-family: var(--cf-font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--cf-primary);
}

.product-card__tech {
    font-family: var(--cf-font-heading);
    font-size: 0.6875rem;
    color: var(--cf-text-dim);
    background: rgba(255, 255, 255, 0.05);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.product-card__title {
    font-family: var(--cf-font-heading);
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.product-card__desc {
    color: var(--cf-text-muted);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    flex: 1;
}

.product-card__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--cf-surface-border);
}

.product-card__files {
    font-size: 0.75rem;
    color: var(--cf-text-dim);
}

.product-card__price {
    font-family: var(--cf-font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--cf-text);
}

/* ── Features ───────────────────────────────────────────────────── */

.features { background: var(--cf-bg-alt); }

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--cf-gap);
}

.feature-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-surface-border);
    border-radius: var(--cf-card-radius);
    padding: var(--cf-card-padding);
    transition: border-color var(--cf-transition);
}

.feature-card:hover {
    border-color: rgba(255, 107, 0, 0.2);
}

.feature-card__icon {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.feature-card__title {
    font-family: var(--cf-font-heading);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-card__desc {
    color: var(--cf-text-muted);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* ── Lead Magnets ───────────────────────────────────────────────── */

.lead-magnets__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--cf-gap);
}

.lead-magnet-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-surface-border);
    border-radius: var(--cf-card-radius);
    padding: 2rem;
}

.lead-magnet-card__title {
    font-family: var(--cf-font-heading);
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.lead-magnet-card__desc {
    color: var(--cf-text-muted);
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.lead-magnet-card__form {
    display: flex;
    gap: 0.5rem;
}

.lead-magnet-card__input {
    flex: 1;
    font-family: var(--cf-font-body);
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    background: var(--cf-bg);
    border: 1px solid var(--cf-surface-border);
    border-radius: 6px;
    color: var(--cf-text);
    outline: none;
    transition: border-color var(--cf-transition);
}

.lead-magnet-card__input:focus {
    border-color: var(--cf-primary);
}

.lead-magnet-card__input::placeholder {
    color: var(--cf-text-dim);
}

/* ── Cross-Sell ─────────────────────────────────────────────────── */

.cross-sell__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--cf-gap);
}

.cross-sell-card {
    display: block;
    background: var(--cf-surface);
    border: 1px solid var(--cf-surface-border);
    border-radius: var(--cf-card-radius);
    padding: var(--cf-card-padding);
    transition: border-color var(--cf-transition), transform var(--cf-transition);
    color: var(--cf-text);
}

.cross-sell-card:hover {
    border-color: rgba(255, 107, 0, 0.3);
    transform: translateY(-2px);
    color: var(--cf-text);
}

.cross-sell-card__badge {
    display: inline-block;
    font-family: var(--cf-font-heading);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--cf-accent-blue);
    background: rgba(51, 136, 255, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cross-sell-card__title {
    font-family: var(--cf-font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
}

.cross-sell-card__desc {
    color: var(--cf-text-muted);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* ── Footer ─────────────────────────────────────────────────────── */

.footer {
    border-top: 1px solid var(--cf-surface-border);
    padding: 3rem 2rem;
}

.footer__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer__brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--cf-font-heading);
    font-weight: 700;
    font-size: 1rem;
}

.footer__links {
    display: flex;
    gap: 2rem;
}

.footer__links a {
    color: var(--cf-text-muted);
    font-size: 0.875rem;
    transition: color var(--cf-transition);
}

.footer__links a:hover { color: var(--cf-text); }

.footer__copy {
    font-size: 0.75rem;
    color: var(--cf-text-dim);
}

/* ── Responsive ─────────────────────────────────────────────────── */

@media (max-width: 640px) {
    :root {
        --cf-section-padding: 4rem 1.25rem;
    }

    .hero { padding: 6rem 1.25rem 3rem; }
    .hero__stats { gap: 1.25rem; }
    .hero__stat-value { font-size: 1.25rem; }

    .bundles__grid { grid-template-columns: 1fr; }
    .products__grid { grid-template-columns: 1fr; }
    .features__grid { grid-template-columns: 1fr; }
    .lead-magnets__grid { grid-template-columns: 1fr; }
    .cross-sell__grid { grid-template-columns: 1fr; }

    .lead-magnet-card__form {
        flex-direction: column;
    }

    .bundle-card__price { font-size: 2rem; }
}