/* ─────────────────────────────────────────────
   Playlist Empire — Shared Theme
   (matches the for-curators design system)
────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #060a08;
  --bg-elevated: #0a1210;
  --bg-card: #0e1812;
  --bg-card-hover: #111f16;
  --border: rgba(34, 197, 94, 0.12);
  --border-strong: rgba(34, 197, 94, 0.28);
  --green: #22c55e;
  --green-light: #4ade80;
  --green-dim: rgba(34, 197, 94, 0.55);
  --green-glow-sm: rgba(34, 197, 94, 0.08);
  --green-glow-md: rgba(34, 197, 94, 0.15);
  --green-glow-lg: rgba(34, 197, 94, 0.25);
  --text: #ecfdf5;
  --text-muted: #7aaa8a;
  --text-dim: #3d6b50;
  --danger: #f87171;
  --radius: 12px;
  --radius-lg: 20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.container-narrow { width: 100%; max-width: 760px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* ─── NAV ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 20px 0;
  background: rgba(6, 10, 8, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease;
}
nav .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-size: 1.15rem; font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: -0.02em; display: flex; align-items: center; gap: 8px; }
.nav-logo span { color: var(--green); }
.nav-logo-icon { width: 28px; height: 28px; background: var(--green-glow-lg); border: 1px solid var(--border-strong); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 14px; }
.nav-cta { background: var(--green-glow-md); border: 1px solid var(--border-strong); color: var(--green-light); padding: 9px 20px; border-radius: 8px; font-size: 0.875rem; font-weight: 600; text-decoration: none; cursor: pointer; transition: all 0.2s ease; }
.nav-cta:hover { background: var(--green-glow-lg); border-color: var(--green); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-link { color: var(--text-muted); text-decoration: none; font-size: 0.875rem; font-weight: 600; padding: 9px 16px; border-radius: 8px; transition: all 0.2s ease; }
.nav-link:hover { color: var(--green-light); background: var(--green-glow-sm); }

/* ─── HERO ─── */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 140px 0 100px; overflow: hidden; }
.hero-center { text-align: center; }
.hero-glow { position: absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 900px; height: 700px; background: radial-gradient(ellipse at center, rgba(34,197,94,0.12) 0%, transparent 70%); pointer-events: none; }
.hero-glow-2 { position: absolute; bottom: -100px; right: -200px; width: 600px; height: 600px; background: radial-gradient(ellipse at center, rgba(34,197,94,0.06) 0%, transparent 70%); pointer-events: none; }

.badge { display: inline-flex; align-items: center; gap: 8px; background: var(--green-glow-md); border: 1px solid var(--border-strong); color: var(--green-light); padding: 6px 14px; border-radius: 100px; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; margin-bottom: 28px; }
.badge-dot { width: 7px; height: 7px; background: var(--green); border-radius: 50%; animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot { 0%,100% { opacity:1; transform: scale(1);} 50% { opacity:0.5; transform: scale(0.8);} }

h1 { font-size: clamp(2.6rem, 5.5vw, 4.6rem); font-weight: 900; line-height: 1.05; letter-spacing: -0.04em; margin-bottom: 24px; color: var(--text); }
.gradient-text { background: linear-gradient(135deg, var(--green) 0%, var(--green-light) 50%, #86efac 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 1.125rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 40px; max-width: 560px; }
.hero-center .hero-sub { margin-left: auto; margin-right: auto; }

/* ─── SONG SEARCH ─── */
.hero-search { max-width: 640px; margin: 0 auto; }
.song-form { background: var(--bg-card); border: 1px solid var(--border-strong); border-radius: var(--radius-lg); padding: 24px; box-shadow: 0 0 60px rgba(34,197,94,0.08), 0 20px 60px rgba(0,0,0,0.4); }
.song-form-label { display: block; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--green); margin-bottom: 12px; }
.song-form-row { display: flex; gap: 10px; }
.song-input { flex: 1; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 10px; padding: 16px; font-size: 1rem; color: var(--text); font-family: inherit; transition: border-color 0.2s, box-shadow 0.2s; outline: none; min-width: 0; }
.song-input::placeholder { color: var(--text-dim); }
.song-input:focus { border-color: var(--green-dim); box-shadow: 0 0 0 3px rgba(34,197,94,0.08); }
.song-form-note { font-size: 0.8rem; color: var(--text-dim); margin-top: 12px; text-align: center; }

/* ─── BUTTONS + INPUTS ─── */
.btn-primary { background: var(--green); color: #060a08; border: none; border-radius: 10px; padding: 15px 24px; font-size: 1rem; font-weight: 700; font-family: inherit; cursor: pointer; transition: all 0.2s ease; letter-spacing: -0.01em; display: inline-flex; align-items: center; justify-content: center; gap: 8px; white-space: nowrap; }
.btn-primary:hover { background: var(--green-light); transform: translateY(-1px); box-shadow: 0 8px 32px rgba(34,197,94,0.3); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-primary.loading { opacity: 0.7; pointer-events: none; }
.btn-block { width: 100%; }
.btn-secondary { background: var(--green-glow-md); border: 1px solid var(--border-strong); color: var(--green-light); padding: 10px 18px; border-radius: 8px; font-size: 0.875rem; font-weight: 600; font-family: inherit; cursor: pointer; transition: all 0.2s ease; }
.btn-secondary:hover { background: var(--green-glow-lg); border-color: var(--green); }

.form-input { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; font-size: 0.95rem; color: var(--text); font-family: inherit; width: 100%; transition: border-color 0.2s, box-shadow 0.2s; outline: none; }
.form-input::placeholder { color: var(--text-dim); }
.form-input:focus { border-color: var(--green-dim); box-shadow: 0 0 0 3px rgba(34,197,94,0.08); }
.form-error { font-size: 0.82rem; color: var(--danger); text-align: center; margin-top: 10px; }

/* ─── SUCCESS STATE ─── */
.success-state { text-align: center; padding: 16px 0; }
.success-icon { width: 56px; height: 56px; background: var(--green-glow-lg); border: 2px solid var(--green); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 24px; color: var(--green); }
.success-state h3 { font-size: 1.3rem; font-weight: 800; margin-bottom: 8px; color: var(--text); }
.success-state p { color: var(--text-muted); font-size: 0.95rem; }

/* ─── SECTIONS ─── */
section { position: relative; z-index: 1; }
.section-label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--green); margin-bottom: 14px; }
.section-title { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.03em; color: var(--text); margin-bottom: 16px; }
.section-sub { font-size: 1.1rem; color: var(--text-muted); line-height: 1.7; max-width: 560px; }
.section-center { text-align: center; }
.section-center .section-sub { margin: 0 auto; }
.divider { width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--border-strong), transparent); }

.content-section { padding: 100px 0; }
.content-section.alt { background: var(--bg-elevated); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ─── CARDS ─── */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; transition: all 0.25s ease; }
.card:hover { border-color: var(--border-strong); background: var(--bg-card-hover); transform: translateY(-2px); }
.card-icon { width: 48px; height: 48px; background: var(--green-glow-md); border: 1px solid var(--border-strong); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 18px; }
.card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 10px; letter-spacing: -0.01em; }
.card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

/* ─── TRUSTED BY ─── */
.trusted-artists { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; max-width: 720px; margin: 40px auto 0; }
.artist { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.artist-avatar { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border-strong); background: var(--bg-card); }
.artist-name { font-size: 0.82rem; color: var(--text-muted); font-weight: 600; }
.artist-listeners { font-size: 0.72rem; color: var(--text-dim); }
.trusted-labels { display: flex; flex-wrap: wrap; justify-content: space-evenly; align-items: center; gap: 40px; margin-top: 48px; padding-top: 40px; border-top: 1px solid var(--border); }
.label-logo { height: 64px; width: auto; object-fit: contain; }

/* ─── FAQ ─── */
.faq-list { max-width: 720px; margin: 48px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color 0.2s; }
.faq-item:hover { border-color: var(--border-strong); }
.faq-item summary { list-style: none; cursor: pointer; padding: 20px 24px; font-weight: 700; font-size: 0.98rem; color: var(--text); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.4rem; font-weight: 500; color: var(--green); flex-shrink: 0; transition: transform 0.2s ease; line-height: 1; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-answer { padding: 0 24px 22px; font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; }

/* ─── INNER PAGES ─── */
.page { position: relative; padding: 150px 0 100px; min-height: 100vh; z-index: 1; }
.page-glow { position: absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 700px; height: 500px; background: radial-gradient(ellipse at center, rgba(34,197,94,0.1) 0%, transparent 70%); pointer-events: none; }
.back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--text-muted); text-decoration: none; font-size: 0.9rem; font-weight: 600; margin-bottom: 28px; transition: color 0.2s; }
.back-link:hover { color: var(--green-light); }
.page-title { font-size: clamp(2rem, 4vw, 3rem); font-weight: 900; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 12px; }
.page-sub { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 48px; }

.card-block { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; margin-bottom: 24px; }
.block-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.block-header h2 { font-size: 1.15rem; font-weight: 800; letter-spacing: -0.01em; }

/* ─── SONG LIST ─── */
.song-list { display: flex; flex-direction: column; gap: 12px; }
.song-row { display: flex; align-items: center; gap: 12px; }
.song-row-num { width: 26px; height: 26px; background: var(--green-glow-md); border: 1px solid var(--border-strong); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 700; color: var(--green-light); flex-shrink: 0; }
.song-row-input { flex: 1; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 10px; padding: 13px 16px; font-size: 0.9rem; color: var(--text); font-family: inherit; outline: none; transition: border-color 0.2s, box-shadow 0.2s; min-width: 0; }
.song-row-input:focus { border-color: var(--green-dim); box-shadow: 0 0 0 3px rgba(34,197,94,0.08); }
.song-row-remove { width: 38px; height: 38px; background: transparent; border: 1px solid var(--border); border-radius: 10px; color: var(--text-dim); font-size: 1.2rem; cursor: pointer; flex-shrink: 0; transition: all 0.2s; line-height: 1; }
.song-row-remove:hover { color: var(--danger); border-color: rgba(248,113,113,0.4); }
.song-row-remove:disabled { opacity: 0.3; cursor: not-allowed; }

/* ─── TIERS ─── */
.tier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tier-card { position: relative; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; cursor: pointer; transition: all 0.2s ease; text-align: left; }
.tier-card:hover { border-color: var(--border-strong); background: var(--bg-card-hover); }
.tier-card.selected { border-color: var(--green); background: var(--green-glow-sm); box-shadow: 0 0 0 1px var(--green), 0 0 40px rgba(34,197,94,0.12); }
.tier-card .tier-icon { font-size: 26px; margin-bottom: 12px; }
.tier-card h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 4px; }
.tier-price { font-size: 2rem; font-weight: 900; color: var(--text); letter-spacing: -0.03em; }
.tier-streams { font-size: 0.82rem; color: var(--green-light); font-weight: 600; margin: 6px 0 16px; }
.tier-features { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.tier-features li { font-size: 0.8rem; color: var(--text-muted); display: flex; gap: 8px; align-items: flex-start; line-height: 1.4; }
.tier-features li::before { content: '✓'; color: var(--green); font-weight: 700; flex-shrink: 0; }
.tier-check { position: absolute; top: 16px; right: 16px; width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--border-strong); display: flex; align-items: center; justify-content: center; color: transparent; font-size: 0.8rem; font-weight: 700; }
.tier-card.selected .tier-check { background: var(--green); border-color: var(--green); color: #060a08; }

/* ─── CHECKOUT BAR ─── */
.checkout-bar { position: sticky; bottom: 16px; background: rgba(10, 18, 16, 0.92); backdrop-filter: blur(12px); border: 1px solid var(--border-strong); border-radius: var(--radius-lg); padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; box-shadow: 0 -10px 40px rgba(0,0,0,0.4); }
.total { display: flex; flex-direction: column; }
.total > span { font-size: 0.78rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 700; }
.total strong { font-size: 1.8rem; font-weight: 900; letter-spacing: -0.02em; }
.total .total-detail { font-size: 0.8rem; color: var(--text-muted); }

/* ─── ORDER SUMMARY + PAYMENT ─── */
.summary-row { display: flex; justify-content: space-between; align-items: flex-start; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 0.92rem; gap: 16px; }
.summary-row:last-of-type { border-bottom: none; }
.summary-row .label { color: var(--text-muted); flex-shrink: 0; }
.summary-row .value { color: var(--text); font-weight: 600; text-align: right; }
.summary-songs { display: flex; flex-direction: column; gap: 6px; }
.summary-song { font-size: 0.82rem; color: var(--text-muted); word-break: break-all; }
.summary-total { font-size: 1.5rem; font-weight: 900; color: var(--green-light); }

.payment-options { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.pay-btn { width: 100%; padding: 16px; border-radius: 10px; font-size: 1rem; font-weight: 700; font-family: inherit; cursor: pointer; border: none; display: flex; align-items: center; justify-content: center; gap: 10px; transition: all 0.2s; }
.pay-btn-stripe { background: #635bff; color: #fff; }
.pay-btn-stripe:hover { background: #7a73ff; transform: translateY(-1px); }
.pay-btn-paypal { background: #ffc439; color: #003087; }
.pay-btn-paypal:hover { background: #ffd55c; transform: translateY(-1px); }
.pay-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.pay-note { font-size: 0.78rem; color: var(--text-dim); text-align: center; margin-top: 16px; }

/* ─── BOTTOM CTA ─── */
.bottom-cta { padding: 100px 0; background: var(--bg-elevated); border-top: 1px solid var(--border); text-align: center; position: relative; overflow: hidden; }
.bottom-cta-glow { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 800px; height: 400px; background: radial-gradient(ellipse at center, rgba(34,197,94,0.1) 0%, transparent 70%); pointer-events: none; }
.bottom-cta .section-sub { margin: 0 auto 40px; max-width: 500px; }
.btn-lg { padding: 18px 36px; font-size: 1.1rem; border-radius: 12px; }

/* ─── FOOTER ─── */
footer { border-top: 1px solid var(--border); padding: 32px 0; position: relative; z-index: 1; }
footer .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-logo { font-size: 0.95rem; font-weight: 700; color: var(--text-muted); }
.footer-logo span { color: var(--green); }
.footer-note { font-size: 0.8rem; color: var(--text-dim); }

/* ─── FADE ANIMATIONS ─── */
.fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .cards, .tier-grid { grid-template-columns: 1fr; }
  .song-form-row { flex-direction: column; }
  .checkout-bar { flex-direction: column; align-items: stretch; text-align: center; }
}
@media (max-width: 640px) {
  h1 { font-size: 2.3rem; }
  .hero { padding: 120px 0 80px; }
  .page { padding: 130px 0 80px; }
  .content-section { padding: 72px 0; }
  .artist-avatar { width: 60px; height: 60px; font-size: 1.1rem; }
  .trusted-artists { grid-template-columns: repeat(2, 1fr); }
  .trusted-labels { justify-content: center; gap: 28px; }
  .label-logo { height: 48px; }
}