/* ──────────────────────────────────────────────────────────────
   AbundanceAI — shared stylesheet
   Brand palette + typography per Brand Guidelines v1.0
   ────────────────────────────────────────────────────────────── */

:root {
    /* Color palette */
    --green-primary: #047857;
    --green-light: #10B981;
    --green-tint: #D1FAE5;
    --text-primary: #0F172A;
    --text-muted: #6B7280;
    --border: #E5E7EB;
    --bg: #FFFFFF;
    --bg-subtle: #F8FAFC;

    /* Spacing scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 96px;
    --space-10: 128px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    color: var(--text-primary);
    font-size: 17px;
    font-weight: 400;
    line-height: 1.6;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ── Typography primitives ── */
h1, h2, h3, h4 {
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.015em;
}

p { color: var(--text-primary); }

.eyebrow {
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--green-primary);
}

.muted { color: var(--text-muted); }

.accent { color: var(--green-primary); }

/* ── Layout primitives ── */
.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--space-7);
}

.container-narrow {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    padding: 0 var(--space-7);
}

section {
    padding: var(--space-9) 0;
}

section.tight { padding: var(--space-8) 0; }
section.loose { padding: var(--space-10) 0; }
section.bg-subtle { background: var(--bg-subtle); }

/* ── Navigation ── */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.nav.scrolled {
    border-bottom-color: var(--border);
}

.nav-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--space-7);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 18px;
    font-weight: 500;
    letter-spacing: -0.01em;
    display: inline-flex;
    align-items: center;
    height: 36px;
    gap: 0;
}

.logo-img {
    height: 100%;
    width: auto;
    display: block;
}

/* Text-fallback styles for places using span wordmark instead of the image */
.logo-mark {
    color: var(--green-primary);
}

.logo-suffix {
    color: var(--green-light);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-7);
}

.nav-link {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-primary);
    transition: color 0.15s ease;
}

.nav-link:hover {
    color: var(--green-primary);
}

.nav-link.active {
    color: var(--green-primary);
    font-weight: 500;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 500;
    padding: 12px 24px;
    border-radius: 8px;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.1s ease;
    text-decoration: none;
    line-height: 1.2;
}

.btn-primary {
    background: var(--green-primary);
    color: #FFFFFF;
    border-color: var(--green-primary);
}

.btn-primary:hover {
    background: #064E3B;
    border-color: #064E3B;
}

.btn-secondary {
    background: transparent;
    color: var(--green-primary);
    border-color: var(--green-primary);
}

.btn-secondary:hover {
    background: var(--green-primary);
    color: #FFFFFF;
}

.btn-large {
    font-size: 16px;
    padding: 14px 32px;
}

.btn-arrow::after {
    content: '→';
    margin-left: 4px;
    transition: transform 0.15s ease;
}

.btn-arrow:hover::after {
    transform: translateX(3px);
}

/* ── Hero ── */
.hero {
    padding: var(--space-10) 0 var(--space-9);
}

.hero-eyebrow {
    margin-bottom: var(--space-5);
}

.hero h1 {
    font-size: clamp(40px, 5.5vw, 56px);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-5);
    max-width: 880px;
}

.hero-sub {
    font-size: 19px;
    color: var(--text-muted);
    font-style: italic;
    max-width: 640px;
    margin-bottom: var(--space-7);
    line-height: 1.55;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* ── Section heading block ── */
.section-head {
    margin-bottom: var(--space-7);
}

.section-head h2 {
    font-size: clamp(28px, 3.5vw, 36px);
    font-weight: 500;
    line-height: 1.15;
    letter-spacing: -0.018em;
    margin-bottom: var(--space-4);
    max-width: 720px;
}

.section-head p {
    color: var(--text-muted);
    font-size: 17px;
    max-width: 640px;
    line-height: 1.6;
}

.section-head .eyebrow {
    display: block;
    margin-bottom: var(--space-4);
}

/* ── Three-column grid (pillars, why-us, etc.) ── */
.three-col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-7);
}

.pillar {
    padding-right: var(--space-5);
}

.pillar-number {
    font-size: 32px;
    font-weight: 500;
    color: var(--green-primary);
    line-height: 1;
    margin-bottom: var(--space-3);
}

.pillar-label {
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.pillar p {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.6;
}

/* ── Pain callout quote ── */
.pain-callout {
    border-left: 4px solid var(--green-primary);
    padding: var(--space-3) 0 var(--space-3) var(--space-6);
    max-width: 820px;
}

.pain-callout blockquote {
    font-size: clamp(22px, 2.8vw, 30px);
    font-style: italic;
    font-weight: 400;
    color: var(--text-primary);
    line-height: 1.35;
    margin-bottom: var(--space-3);
    letter-spacing: -0.01em;
}

.pain-callout cite {
    font-size: 15px;
    color: var(--text-muted);
    font-style: normal;
}

/* ── Cards ── */
.card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--space-6);
    background: var(--bg);
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
    border-color: #CBD5E1;
}

.card-eyebrow {
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--green-primary);
    margin-bottom: var(--space-3);
}

.card h3 {
    font-size: 19px;
    font-weight: 500;
    margin-bottom: var(--space-3);
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.card p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.6;
}

.card-list {
    list-style: none;
    margin-bottom: var(--space-4);
}

.card-list li {
    font-size: 15px;
    color: var(--text-primary);
    padding: 6px 0 6px var(--space-4);
    position: relative;
}

.card-list li::before {
    content: '•';
    color: var(--green-primary);
    position: absolute;
    left: 0;
    font-weight: 500;
}

.card-tag {
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
}

/* Hero "Start here" card */
.card-featured {
    background: var(--green-tint);
    border-color: transparent;
    padding: var(--space-7);
}

.card-featured h3 {
    font-size: 24px;
    margin-bottom: var(--space-4);
}

.card-featured p {
    color: var(--text-primary);
    font-size: 16px;
    margin-bottom: var(--space-5);
}

.card-featured .card-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* Bundle card grid */
.bundle-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
    margin-top: var(--space-6);
}

/* ── Two-column comparison (designed use) ── */
.compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
}

.compare-col {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--space-6);
}

.compare-col.yes { background: var(--green-tint); border-color: transparent; }
.compare-col.no { background: #FEF2F2; border-color: transparent; }

/* ── Stack vs pain (two-column with one column tinted) ── */
.stack-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
}

.stack-col {
    border-radius: 8px;
    padding: var(--space-7);
    border: 1px solid var(--border);
}

.stack-col.tint {
    background: var(--green-tint);
    border-color: transparent;
}

.stack-col h3 {
    font-size: 17px;
    font-weight: 500;
    margin-bottom: var(--space-4);
    line-height: 1.3;
}

.stack-list {
    list-style: none;
}

.stack-list li {
    font-size: 15px;
    padding: 8px 0;
    color: var(--text-primary);
    line-height: 1.5;
}

.stack-list li strong {
    font-weight: 500;
    color: var(--text-primary);
}

.stack-list .arrow {
    color: var(--text-muted);
    margin: 0 6px;
}

.stack-list.bullets li {
    padding: 6px 0 6px var(--space-4);
    position: relative;
}

.stack-list.bullets li::before {
    content: '•';
    color: var(--green-primary);
    position: absolute;
    left: 0;
    font-weight: 500;
}

/* ── What we build: three-column category grid ── */
.build-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.build-cat h3 {
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--green-primary);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--border);
}

.build-cat ul {
    list-style: none;
}

.build-cat li {
    font-size: 15px;
    padding: 6px 0 6px var(--space-4);
    position: relative;
    color: var(--text-primary);
}

.build-cat li::before {
    content: '•';
    color: var(--green-primary);
    position: absolute;
    left: 0;
    font-weight: 500;
}

/* ── Use case mini-card ── */
.use-cases {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.use-case h4 {
    font-size: 17px;
    font-weight: 500;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.use-case p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.55;
}

.compare-col h3 {
    font-size: 13px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.compare-list {
    list-style: none;
}

.compare-list li {
    font-size: 15px;
    padding: 6px 0 6px var(--space-5);
    position: relative;
    color: var(--text-primary);
    line-height: 1.5;
}

.compare-list.yes li::before {
    content: '✓';
    color: var(--green-primary);
    position: absolute;
    left: 0;
    font-weight: 500;
}

.compare-list.no li::before {
    content: '✗';
    color: #B91C1C;
    position: absolute;
    left: 0;
    font-weight: 500;
}

/* ── CTA strip ── */
.cta-strip {
    background: var(--green-primary);
    color: #FFFFFF;
    padding: var(--space-8) 0;
    text-align: center;
}

.cta-strip h2 {
    color: #FFFFFF;
    font-size: clamp(28px, 3.5vw, 36px);
    font-weight: 500;
    margin-bottom: var(--space-5);
    letter-spacing: -0.018em;
}

.cta-strip p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 18px;
    margin-bottom: var(--space-6);
}

.cta-strip .btn-primary {
    background: #FFFFFF;
    color: var(--green-primary);
    border-color: #FFFFFF;
}

.cta-strip .btn-primary:hover {
    background: var(--green-tint);
    color: var(--green-primary);
    border-color: var(--green-tint);
}

/* ── Trust strip (small) ── */
.trust-strip {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: var(--space-6) 0;
    font-size: 15px;
    color: var(--text-muted);
    text-align: center;
}

.trust-strip a {
    color: var(--green-primary);
    font-weight: 500;
    text-decoration: underline;
    text-decoration-color: rgba(4, 120, 87, 0.3);
    text-underline-offset: 3px;
}

.trust-strip a:hover {
    text-decoration-color: var(--green-primary);
}

/* ── Social proof line ── */
.proof-line {
    text-align: center;
    padding: var(--space-7) 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.proof-line p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 auto;
    font-style: italic;
}

/* ── Process steps (vertical list) ── */
.steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    max-width: 820px;
}

.step {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: var(--space-5);
    align-items: start;
}

.step-num {
    font-size: 32px;
    font-weight: 500;
    color: var(--green-primary);
    line-height: 1;
}

.step h3 {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.step p {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 16px;
}

/* ── Bio block ── */
.bio {
    border-left: 4px solid var(--green-primary);
    padding-left: var(--space-6);
    max-width: 820px;
}

.bio p {
    font-size: 18px;
    line-height: 1.65;
}

.bio strong {
    font-weight: 500;
}

/* ── Footer ── */
.footer {
    background: var(--bg-subtle);
    border-top: 1px solid var(--border);
    padding: var(--space-8) 0 var(--space-7);
}

.footer-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--space-7);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-7);
}

.footer-tagline {
    font-size: 15px;
    color: var(--text-muted);
    max-width: 320px;
    line-height: 1.55;
    margin-top: var(--space-3);
}

.footer-col h4 {
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    font-size: 15px;
    color: var(--text-primary);
    transition: color 0.15s ease;
}

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

.footer-bottom {
    max-width: 1120px;
    margin: var(--space-7) auto 0;
    padding: var(--space-5) var(--space-7) 0;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-muted);
}

/* ── Contact page-specific ── */
.contact-hero {
    padding: var(--space-10) 0 var(--space-9);
    text-align: center;
}

.contact-hero h1 {
    font-size: clamp(48px, 6vw, 72px);
    margin-bottom: var(--space-5);
}

.contact-hero .btn-primary {
    margin-bottom: var(--space-5);
}

.contact-or {
    color: var(--text-muted);
    font-size: 16px;
    margin-bottom: var(--space-8);
}

.contact-or a {
    color: var(--green-primary);
    text-decoration: underline;
    text-decoration-color: rgba(4, 120, 87, 0.3);
    text-underline-offset: 3px;
}

.expect-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    max-width: 880px;
    margin: 0 auto;
    text-align: left;
}

.expect-item h4 {
    font-size: 13px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--green-primary);
    margin-bottom: var(--space-3);
}

.expect-item p {
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.55;
}

/* ── Mobile ── */
@media (max-width: 880px) {
    .container, .container-narrow {
        padding: 0 var(--space-5);
    }

    .nav-inner {
        padding: 0 var(--space-5);
    }

    .nav-links { gap: var(--space-5); }
    .nav-link:not(.nav-cta-link) { display: none; }

    section { padding: var(--space-8) 0; }
    section.loose { padding: var(--space-9) 0; }

    .hero { padding: var(--space-9) 0 var(--space-8); }

    .three-col,
    .bundle-grid,
    .compare-grid,
    .stack-grid,
    .build-grid,
    .use-cases,
    .expect-grid,
    .footer-inner {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .pillar { padding-right: 0; }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    .step {
        grid-template-columns: 48px 1fr;
        gap: var(--space-4);
    }
}

@media (max-width: 560px) {
    .hero h1 { font-size: 36px; }
    .pain-callout blockquote { font-size: 20px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; justify-content: center; }
}