/* ═══════════════════════════════════════
   AGNI AI STORE — Design System
   Dark theme matching shopagni.com
   ═══════════════════════════════════════ */

:root {
  --bg: #07090e;
  --bg-raised: #0d1017;
  --bg-card: #111520;
  --bg-card-hover: #161c2a;
  --bg-dark-section: #0a0d14;
  --border: #1a2030;
  --border-light: #222b3d;

  --text: #e8eaf0;
  --muted: #8891a5;
  --faint: #555e72;

  --accent: #4f8cff;
  --accent-hover: #6ba0ff;
  --accent-glow: rgba(79, 140, 255, 0.15);

  --green: #34d399;
  --green-glow: rgba(52, 211, 153, 0.12);

  --amber: #f4b942;
  --amber-glow: rgba(244, 185, 66, 0.12);

  --purple: #a78bfa;
  --purple-glow: rgba(167,139,250,0.12);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 72px;
  --space-4xl: 96px;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; font-size: 15px; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 var(--space-lg); }

/* Typography */
.display-xl { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; line-height: 1.08; letter-spacing: -0.03em; color: var(--text); }
.display-lg { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.025em; }
.display-md { font-size: clamp(1.4rem, 2.5vw, 1.9rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
.display-sm { font-size: 1.1rem; font-weight: 600; line-height: 1.3; }
.body-lg { font-size: 1.1rem; line-height: 1.65; color: var(--muted); }
.body-md { font-size: 0.95rem; line-height: 1.6; color: var(--muted); }
.label { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 28px; border-radius: var(--radius-sm); font-size: 0.88rem; font-weight: 600; cursor: pointer; transition: all 0.2s; border: none; font-family: var(--font); }
.btn-sm { padding: 8px 18px; font-size: 0.8rem; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; box-shadow: 0 4px 20px var(--accent-glow); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border-light); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ─── NAV ─── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(7,9,14,0.85); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.nav-inner { max-width: 1140px; margin: 0 auto; padding: 0 var(--space-lg); display: flex; align-items: center; justify-content: space-between; height: 60px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 0.95rem; color: var(--text); letter-spacing: 0.04em; }
.nav-logo em { font-style: normal; color: var(--accent); }
.nav-links { display: flex; gap: var(--space-xl); }
.nav-links a { font-size: 0.82rem; font-weight: 500; color: var(--muted); transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta { white-space: nowrap; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--text); margin: 4px 0; transition: 0.2s; }
.nav-mobile { display: none; }

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-mobile.open { display: block; position: absolute; top: 60px; left: 0; right: 0; background: var(--bg-raised); border-bottom: 1px solid var(--border); padding: var(--space-lg); }
  .nav-mobile ul { display: flex; flex-direction: column; gap: var(--space-md); }
  .nav-mobile a { font-size: 0.9rem; color: var(--muted); }
}

/* ─── HERO ─── */
.hero { padding: 140px 0 80px; position: relative; overflow: hidden; }
.hero-grain { position: absolute; inset: 0; background: radial-gradient(ellipse at 30% 20%, var(--accent-glow) 0%, transparent 60%); pointer-events: none; }
.hero-inner { max-width: 1140px; margin: 0 auto; padding: 0 var(--space-lg); text-align: center; }
.hero-label { margin-bottom: var(--space-lg); }
.hero-sub { max-width: 620px; margin: var(--space-xl) auto 0; }
.hero-actions { display: flex; gap: var(--space-md); justify-content: center; margin-top: var(--space-2xl); flex-wrap: wrap; }
.hero-stats { display: flex; justify-content: center; align-items: center; gap: var(--space-2xl); margin-top: var(--space-3xl); padding-top: var(--space-2xl); border-top: 1px solid var(--border); }
.hero-stat { text-align: center; }
.hero-stat-num { display: block; font-size: 1.3rem; font-weight: 700; color: var(--text); }
.hero-stat-label { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 4px; display: block; }
.hero-stat-divider { width: 1px; height: 32px; background: var(--border); }
@media (max-width: 600px) { .hero-stats { flex-direction: column; gap: var(--space-lg); } .hero-stat-divider { width: 40px; height: 1px; } }

/* ─── TRUST BAR ─── */
.trust-bar { border-bottom: 1px solid var(--border); padding: var(--space-md) 0; }
.trust-items { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: var(--space-md); }
.trust-item { font-size: 0.78rem; font-weight: 600; color: var(--faint); letter-spacing: 0.04em; }
.trust-sep { color: var(--border-light); font-size: 0.7rem; }

/* ─── SECTIONS ─── */
.section { padding: var(--space-4xl) 0; }
.section-dark { background: var(--bg-dark-section); }
.section-header { text-align: center; margin-bottom: var(--space-3xl); }
.section-label { margin-bottom: var(--space-md); }
.section-sub { max-width: 560px; margin: var(--space-lg) auto 0; }

/* ─── TIER HEADERS ─── */
.tier-header { margin-bottom: var(--space-xl); padding-left: 4px; }
.tier-title { font-size: 1.2rem; font-weight: 700; color: var(--text); }
.tier-desc { font-size: 0.82rem; color: var(--muted); margin-top: 4px; }

/* ─── SERVICE CARDS ─── */
.services-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--space-lg); }
.service-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-xl); display: flex; flex-direction: column; transition: all 0.25s; }
.service-card:hover { border-color: var(--accent); background: var(--bg-card-hover); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,0,0,0.3); }
.card-standard:hover { border-color: var(--green); }
.card-strategic:hover { border-color: var(--purple); }

.service-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-lg); }
.service-icon { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); background: var(--accent-glow); color: var(--accent); }
.icon-standard { background: var(--green-glow); color: var(--green); }
.icon-strategic { background: var(--purple-glow); color: var(--purple); }

.service-tier-badge { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; padding: 4px 10px; border-radius: 100px; background: var(--accent-glow); color: var(--accent); }
.badge-standard { background: var(--green-glow); color: var(--green); }
.badge-strategic { background: var(--purple-glow); color: var(--purple); }

.service-name { font-size: 1.1rem; font-weight: 700; margin-bottom: var(--space-sm); }
.service-desc { font-size: 0.85rem; line-height: 1.6; color: var(--muted); margin-bottom: var(--space-lg); flex-grow: 1; }

.service-deliverables { margin-bottom: var(--space-xl); }
.service-deliverables li { font-size: 0.82rem; color: var(--muted); padding: 5px 0; padding-left: 18px; position: relative; }
.service-deliverables li::before { content: ''; position: absolute; left: 0; top: 12px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); opacity: 0.6; }
.card-standard .service-deliverables li::before { background: var(--green); }
.card-strategic .service-deliverables li::before { background: var(--purple); }

.service-footer { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-md); margin-top: auto; padding-top: var(--space-lg); border-top: 1px solid var(--border); }
.price-amount { display: block; font-size: 1.3rem; font-weight: 800; color: var(--text); }
.price-timeline { font-size: 0.75rem; color: var(--faint); }

.btn-add { padding: 8px 20px; border-radius: var(--radius-sm); font-size: 0.82rem; font-weight: 600; cursor: pointer; border: 1px solid var(--accent); color: var(--accent); background: transparent; transition: all 0.2s; font-family: var(--font); white-space: nowrap; }
.btn-add:hover { background: var(--accent); color: #fff; }
.btn-add-standard { border-color: var(--green); color: var(--green); }
.btn-add-standard:hover { background: var(--green); color: var(--bg); }
.btn-add-strategic { border-color: var(--purple); color: var(--purple); }
.btn-add-strategic:hover { background: var(--purple); color: var(--bg); }
.btn-add.added { background: var(--accent); color: #fff; pointer-events: none; }
.btn-add-standard.added { background: var(--green); color: var(--bg); }
.btn-add-strategic.added { background: var(--purple); color: var(--bg); }

/* ─── BUNDLES ─── */
.bundles-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--space-lg); }
.bundle-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-2xl) var(--space-xl); position: relative; text-align: center; transition: all 0.25s; }
.bundle-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.bundle-featured { border-color: var(--accent); background: linear-gradient(180deg, rgba(79,140,255,0.06) 0%, var(--bg-card) 40%); }
.bundle-badge { position: absolute; top: -10px; left: 50%; transform: translateX(-50%); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 4px 14px; border-radius: 100px; background: var(--accent); color: #fff; }
.bundle-name { font-size: 1.4rem; font-weight: 800; margin-top: var(--space-lg); }
.bundle-tagline { font-size: 0.85rem; color: var(--muted); margin-top: 4px; }
.bundle-price { margin: var(--space-xl) 0; }
.bundle-price-old { font-size: 0.85rem; color: var(--faint); text-decoration: line-through; margin-right: 8px; }
.bundle-price-now { font-size: 2rem; font-weight: 800; color: var(--text); }
.bundle-includes { text-align: left; margin-bottom: var(--space-xl); }
.bundle-includes li { font-size: 0.85rem; color: var(--muted); padding: 6px 0; padding-left: 20px; position: relative; }
.bundle-includes li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 600; font-size: 0.8rem; }
.bundle-btn { width: 100%; }

/* ─── ADVISORY ─── */
.advisory-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-lg); }
.advisory-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-2xl) var(--space-xl); text-align: center; position: relative; transition: all 0.25s; }
.advisory-card:hover { border-color: var(--amber); transform: translateY(-2px); }
.advisory-featured { border-color: var(--amber); background: linear-gradient(180deg, var(--amber-glow) 0%, var(--bg-card) 40%); }
.advisory-badge { position: absolute; top: -10px; left: 50%; transform: translateX(-50%); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 4px 14px; border-radius: 100px; background: var(--amber); color: var(--bg); }
.advisory-name { font-size: 1.2rem; font-weight: 700; margin-top: var(--space-sm); }
.advisory-price { margin: var(--space-lg) 0; }
.advisory-amount { font-size: 2.2rem; font-weight: 800; }
.advisory-period { font-size: 0.85rem; color: var(--muted); }
.advisory-features { text-align: left; margin-bottom: var(--space-xl); }
.advisory-features li { font-size: 0.85rem; color: var(--muted); padding: 6px 0; padding-left: 20px; position: relative; }
.advisory-features li::before { content: '✓'; position: absolute; left: 0; color: var(--amber); font-weight: 600; font-size: 0.8rem; }
.advisory-btn { width: 100%; }

/* ─── HOW IT WORKS ─── */
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-xl); }
.step { padding: var(--space-xl); }
.step-num { font-size: 2rem; font-weight: 800; color: var(--accent); opacity: 0.3; margin-bottom: var(--space-md); }
.step-title { font-size: 1rem; font-weight: 700; margin-bottom: var(--space-sm); }
.step-desc { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }

/* ─── CART ─── */
.cart-container { max-width: 700px; margin: 0 auto; }
.cart-items { display: flex; flex-direction: column; gap: var(--space-md); margin-bottom: var(--space-xl); }
.cart-item { display: flex; justify-content: space-between; align-items: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-lg); }
.cart-item-info { flex: 1; }
.cart-item-name { font-weight: 600; font-size: 0.95rem; }
.cart-item-price { font-size: 0.85rem; color: var(--muted); margin-top: 2px; }
.cart-item-remove { background: none; border: none; color: var(--faint); cursor: pointer; font-size: 0.8rem; padding: 6px 12px; border-radius: var(--radius-sm); transition: all 0.2s; font-family: var(--font); }
.cart-item-remove:hover { color: #ef4444; background: rgba(239,68,68,0.1); }

.cart-summary { border-top: 1px solid var(--border); padding-top: var(--space-xl); }
.cart-total-row { display: flex; justify-content: space-between; font-size: 1.2rem; font-weight: 700; margin-bottom: var(--space-xl); }
.cart-actions { display: flex; gap: var(--space-md); flex-wrap: wrap; }
.cart-checkout-btn { flex: 1; min-width: 200px; }
.cart-note { font-size: 0.78rem; color: var(--faint); margin-top: var(--space-lg); text-align: center; }

/* ─── CHECKOUT FORM ─── */
.checkout-form { max-width: 600px; margin: 0 auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); margin-bottom: var(--space-md); }
@media (max-width: 500px) { .form-row { grid-template-columns: 1fr; } }
.form-group { display: flex; flex-direction: column; margin-bottom: var(--space-sm); }
.form-group label { font-size: 0.78rem; font-weight: 600; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.04em; }
.form-group input, .form-group textarea { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 14px; font-size: 0.9rem; color: var(--text); font-family: var(--font); transition: border-color 0.2s; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-group textarea { resize: vertical; min-height: 80px; }

.checkout-success { text-align: center; padding: var(--space-3xl) 0; }

/* ─── CTA SECTION ─── */
.cta-section { padding: var(--space-4xl) 0; text-align: center; background: linear-gradient(180deg, var(--bg) 0%, var(--bg-dark-section) 100%); }

/* ─── FOOTER ─── */
.footer { padding: var(--space-3xl) 0 var(--space-2xl); border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--space-2xl); margin-bottom: var(--space-2xl); }
@media (max-width: 600px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 0.9rem; color: var(--text); }
.footer-tagline { font-size: 0.82rem; color: var(--muted); margin-top: var(--space-sm); }
.footer-nav-title { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--faint); margin-bottom: var(--space-md); }
.footer-nav li { margin-bottom: var(--space-sm); }
.footer-nav a { font-size: 0.85rem; color: var(--muted); }
.footer-nav a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: var(--space-lg); }
.footer-bottom p { font-size: 0.78rem; color: var(--faint); }