/* ============================================================
   Grainhaus landing page styles
   Cream + dot pattern background, retro-inspired, but with the
   restrained editorial layout of a modern SaaS landing page.
   ============================================================ */

:root {
    --bg: #e0d8c3;
    --bg-dot: #cec4ad;
    --ink: #1a1a1a;
    --ink-soft: #4a4a4a;
    --ink-muted: #6a6a6a;
    --accent: #ff5e57;
    --accent-dark: #e54e47;
    --accent-soft: rgba(255, 94, 87, 0.08);
    --accent-ring: rgba(255, 94, 87, 0.25);
    --surface: #ffffff;
    --surface-soft: #f4ecd8;
    --surface-dark: #1f1f1f;
    --hairline: rgba(26, 26, 26, 0.08);
    --hairline-strong: rgba(26, 26, 26, 0.16);
    --radius: 16px;
    --radius-lg: 24px;
    --radius-pill: 999px;
    --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.06);
    --shadow-hero: 0 24px 60px rgba(0, 0, 0, 0.18);
    --font-display: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'DM Sans', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background-color: var(--bg);
    background-image: radial-gradient(var(--bg-dot) 1px, transparent 1px);
    background-size: 20px 20px;
    background-attachment: fixed;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0;
}

p {
    margin: 0;
}

button {
    font-family: inherit;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 96px 0;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(224, 216, 195, 0.85);
    backdrop-filter: saturate(140%) blur(12px);
    -webkit-backdrop-filter: saturate(140%) blur(12px);
    border-bottom: 1px solid var(--hairline);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.navbar-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
    color: var(--ink);
}

.navbar-logo-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft);
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar-links a {
    font-size: 0.9rem;
    color: var(--ink-soft);
    transition: color 0.2s;
}

.navbar-links a:hover {
    color: var(--ink);
}

.navbar-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border-radius: var(--radius-pill);
    background: var(--ink);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 500;
    transition: background 0.2s, transform 0.2s var(--ease-out);
}

.navbar-cta:hover {
    background: var(--accent);
    transform: translateY(-1px);
}

.navbar-cta svg {
    width: 14px;
    height: 14px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    padding: 64px 0 96px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 64px;
    align-items: center;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    background: var(--surface);
    border: 1px solid var(--hairline);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--ink-soft);
    margin-bottom: 24px;
}

.eyebrow-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.25rem);
    margin-bottom: 20px;
}

.hero h1 .accent {
    color: var(--accent);
    font-style: italic;
}

.hero-sub {
    font-size: 1.1rem;
    color: var(--ink-soft);
    max-width: 540px;
    margin-bottom: 32px;
}

.cta-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    border-radius: var(--radius-pill);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform 0.2s var(--ease-out), background 0.2s, color 0.2s, border-color 0.2s;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--ink);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent);
}

.btn-secondary {
    background: var(--surface);
    color: var(--ink);
    border-color: var(--hairline-strong);
}

.btn-secondary:hover {
    border-color: var(--ink);
    background: var(--surface);
}

.btn-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.hero-stats {
    display: flex;
    gap: 32px;
    font-size: 0.85rem;
    color: var(--ink-muted);
}

.hero-stats > div {
    display: flex;
    flex-direction: column;
}

.hero-stats strong {
    color: var(--ink);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    margin-bottom: 2px;
}

.hero-visual {
    position: relative;
}

.hero-image-wrap {
    position: relative;
}

.hero-image {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hero);
    transform: rotate(2deg);
    transition: transform 0.4s var(--ease-out);
}

.hero-image:hover {
    transform: rotate(0deg);
}

.hero-badge {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-card);
    transform: rotate(-3deg);
}

.hero-badge-stars {
    color: #ffb800;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.hero-badge-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.hero-badge-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.95rem;
}

.hero-badge-sub {
    font-size: 0.72rem;
    color: var(--ink-muted);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}

.section-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.85rem, 3.5vw, 2.75rem);
    margin-bottom: 16px;
}

.section-sub {
    font-size: 1.05rem;
    color: var(--ink-soft);
}

/* ============================================================
   FEATURES
   ============================================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    padding: 28px;
    transition: transform 0.3s var(--ease-out), box-shadow 0.3s, border-color 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
    border-color: var(--hairline-strong);
}

.feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--accent-soft);
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.feature-icon svg {
    width: 22px;
    height: 22px;
}

.feature-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--ink);
}

.feature-text {
    font-size: 0.95rem;
    color: var(--ink-soft);
    line-height: 1.55;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.step-card {
    position: relative;
    padding: 32px 28px;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    transition: transform 0.3s var(--ease-out);
}

.step-card:hover {
    transform: translateY(-4px);
}

.step-num {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.step-num::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 1px;
    background: var(--accent);
}

.step-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--ink);
}

.step-text {
    font-size: 0.95rem;
    color: var(--ink-soft);
    line-height: 1.55;
}

/* ============================================================
   FILTERS SHOWCASE
   ============================================================ */
.filters-section {
    background: var(--surface-soft);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
    position: relative;
}

.filters-section::before,
.filters-section::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--hairline);
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.filter-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--hairline);
    transition: transform 0.3s var(--ease-out), box-shadow 0.3s;
}

.filter-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.filter-swatch {
    height: 220px;
    display: flex;
    align-items: flex-end;
    padding: 18px;
    position: relative;
    overflow: hidden;
}

.filter-swatch::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--swatch, #444);
}

.filter-swatch::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--swatch-overlay, none);
    mix-blend-mode: var(--swatch-blend, normal);
}

.filter-swatch-label {
    position: relative;
    z-index: 2;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: #fff;
    background: rgba(0, 0, 0, 0.45);
    padding: 5px 10px;
    border-radius: var(--radius-pill);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.filter-card-body {
    padding: 22px;
}

.filter-card-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: 6px;
    color: var(--ink);
}

.filter-card-text {
    font-size: 0.9rem;
    color: var(--ink-soft);
    line-height: 1.5;
}

/* ============================================================
   iOS CTA
   ============================================================ */
.ios-section {
    padding: 96px 0;
}

.ios-card {
    background: var(--surface-dark);
    color: #f5f5f5;
    border-radius: var(--radius-lg);
    padding: 56px;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: center;
    overflow: hidden;
    position: relative;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.12);
}

.ios-card::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    opacity: 0.35;
    pointer-events: none;
}

.ios-card::after {
    content: '';
    position: absolute;
    bottom: -160px;
    left: -120px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 221, 89, 0.25) 0%, transparent 70%);
    pointer-events: none;
}

.ios-card-content {
    position: relative;
    z-index: 1;
}

.ios-card-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--accent);
    margin-bottom: 14px;
}

.ios-card-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.ios-card-text {
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: 24px;
    max-width: 480px;
    line-height: 1.6;
}

.ios-card-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.ios-filter-chip {
    padding: 6px 12px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 0.06em;
}

.ios-filter-chip.exclusive {
    background: rgba(255, 94, 87, 0.18);
    border-color: rgba(255, 94, 87, 0.45);
    color: #ffb3af;
}

.ios-card-rating {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
}

.ios-stars {
    color: #ffd24a;
    letter-spacing: 2px;
}

.ios-card-cta {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
}

.btn-app-store {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 22px;
    background: #fff;
    color: var(--ink);
    border-radius: 14px;
    transition: transform 0.2s var(--ease-out), background 0.2s;
}

.btn-app-store:hover {
    transform: translateY(-2px);
    background: #f5f5f5;
}

.btn-app-store svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.btn-app-store-text {
    display: flex;
    flex-direction: column;
    text-align: left;
    line-height: 1.1;
}

.btn-app-store-small {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-muted);
    font-family: var(--font-body);
}

.btn-app-store-big {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
    color: var(--ink);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.faq-item[open] {
    border-color: var(--hairline-strong);
    box-shadow: var(--shadow-card);
}

.faq-q {
    cursor: pointer;
    list-style: none;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    color: var(--ink);
}

.faq-q::-webkit-details-marker {
    display: none;
}

.faq-q::after {
    content: '+';
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--ink-muted);
    transition: transform 0.3s var(--ease-out), color 0.2s;
    flex-shrink: 0;
}

.faq-item[open] .faq-q::after {
    transform: rotate(45deg);
    color: var(--accent);
}

.faq-a {
    padding: 0 24px 22px;
    color: var(--ink-soft);
    line-height: 1.65;
    font-size: 0.95rem;
}

.faq-a a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

/* ============================================================
   GUIDES
   ============================================================ */
.guides-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.guide-card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    padding: 24px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s var(--ease-out),
                box-shadow 0.2s var(--ease-out),
                border-color 0.2s var(--ease-out);
}

.guide-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
    border-color: var(--hairline-strong);
}

.guide-card-cluster {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: 12px;
}

.guide-card-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--ink);
    margin: 0 0 8px;
}

.guide-card-text {
    font-size: 14px;
    line-height: 1.5;
    color: var(--ink-muted);
    margin: 0;
    flex: 1;
}

.guide-card-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
}

.guide-card-arrow svg {
    width: 14px;
    height: 14px;
    transition: transform 0.2s var(--ease-out);
}

.guide-card:hover .guide-card-arrow svg {
    transform: translateX(3px);
}

.guide-card-featured {
    background: var(--ink);
    color: var(--bg);
    border-color: var(--ink);
    grid-column: 1 / -1;
}

.guide-card-featured .guide-card-title {
    color: var(--bg);
    font-size: 24px;
}

.guide-card-featured .guide-card-text {
    color: rgba(224, 216, 195, 0.75);
    font-size: 15px;
    max-width: 640px;
}

@media (max-width: 900px) {
    .guides-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .guides-grid {
        grid-template-columns: 1fr;
    }

    .guide-card-featured {
        grid-column: auto;
    }

    .guide-card-featured .guide-card-title {
        font-size: 20px;
    }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--hairline);
    background: rgba(244, 236, 216, 0.6);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--ink);
}

.footer-links {
    display: flex;
    gap: 24px;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.9rem;
    color: var(--ink-soft);
}

.footer-links a {
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--ink);
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--ink-muted);
    font-family: var(--font-mono);
    letter-spacing: 0.04em;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 56px;
    }
    .hero-visual {
        order: -1;
        max-width: 480px;
        margin: 0 auto;
    }
    .hero-image {
        transform: rotate(0);
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .filters-grid {
        grid-template-columns: 1fr;
    }
    .steps-grid {
        grid-template-columns: 1fr;
    }
    .ios-card {
        grid-template-columns: 1fr;
        padding: 44px 32px;
        gap: 28px;
    }
}

@media (max-width: 720px) {
    .section {
        padding: 72px 0;
    }
    .hero {
        padding: 40px 0 64px;
    }
    .navbar-links {
        display: none;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }
    .cta-row {
        flex-direction: column;
        align-items: stretch;
    }
    .btn {
        justify-content: center;
    }
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
    .ios-card {
        padding: 36px 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }
    .hero h1 {
        font-size: 2.2rem;
    }
    .hero-badge {
        bottom: -10px;
        left: 12px;
    }
}