/* SayfeSpace Social — Landing Page (Industrial Modern 2027) */
#landing { min-height: 100dvh; display: flex; flex-direction: column; background: var(--bg); color: var(--text); }

.landing-header { position: sticky; top: 0; z-index: 90; height: var(--header-h); border-bottom: 1px solid var(--border); background: linear-gradient(180deg, var(--bg-1) 0%, color-mix(in srgb, var(--bg-1) 92%, transparent) 100%); backdrop-filter: blur(16px); }
.landing-header .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; height: 100%; display: flex; align-items: center; justify-content: space-between; }
.landing-header .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: var(--text); letter-spacing: -0.02em; }
.landing-header .brand .mark { width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; background: var(--surface-1); border: 1px solid var(--border-strong); color: var(--primary); }
.landing-header nav { display: flex; align-items: center; gap: 8px; }
.landing-header nav a, .landing-header nav button { color: var(--text-2); font-weight: 500; font-size: 0.92rem; padding: 8px 12px; border-radius: 10px; transition: all var(--transition-fast); }
.landing-header nav a:hover, .landing-header nav button:hover { color: var(--text); background: var(--surface-1); text-decoration: none; }
.landing-header .actions { display: flex; align-items: center; gap: 8px; }

.hero { position: relative; padding: clamp(64px, 10vw, 140px) 20px; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: -40% -20% auto; width: 140%; height: 70%; background: radial-gradient(ellipse at top, var(--primary-glow), transparent 60%); opacity: 0.35; pointer-events: none; }
.hero-grid { position: relative; max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 4.2rem); font-weight: 800; line-height: 1.05; letter-spacing: -0.03em; margin: 0 0 18px; }
.hero h1 .highlight { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { font-size: clamp(1rem, 1.8vw, 1.25rem); color: var(--text-2); max-width: 540px; margin: 0 0 28px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero .mock { position: relative; transform: perspective(1000px) rotateY(-8deg) rotateX(4deg); transition: transform .6s ease; }
.hero .mock:hover { transform: perspective(1000px) rotateY(-4deg) rotateX(2deg); }

.mock-frame { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-xl); padding: 14px; box-shadow: var(--shadow-lg); }
.mock-stories { display: flex; gap: 10px; margin-bottom: 12px; }
.mock-story { width: 52px; text-align: center; }
.mock-story .ring { width: 48px; height: 48px; border-radius: 50%; padding: 2px; background: conic-gradient(var(--primary), var(--accent), var(--primary)); }
.mock-story .ring .ava { width: 100%; height: 100%; border-radius: 50%; background: var(--surface-2); border: 2px solid var(--surface); }
.mock-story .name { font-size: 0.68rem; color: var(--text-2); margin-top: 4px; }
.mock-card { background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 14px; }
.mock-row { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; }
.mock-ava { width: 38px; height: 38px; border-radius: 50%; background: var(--surface-2); flex-shrink: 0; }
.mock-lines { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.mock-line { height: 9px; border-radius: 999px; background: var(--surface-2); }
.mock-line.short { width: 55%; }
.mock-actions { display: flex; gap: 16px; margin-top: 12px; }
.mock-actions span { width: 18px; height: 18px; border-radius: 4px; background: var(--surface-2); }
.mock-poll { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.mock-pbar { height: 18px; border-radius: 999px; background: var(--surface-2); }
.mock-pbar.accent { background: linear-gradient(90deg, var(--primary), var(--accent)); width: 62%; }

.mock-frame .mock-card + .mock-card { margin-top: 12px; }

.section { position: relative; padding: 86px 20px; }
.section.alt { background: var(--bg-1); }
.section-title { text-align: center; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; margin: 0 0 12px; }
.section-sub { text-align: center; color: var(--text-2); max-width: 680px; margin: 0 auto 48px; }
.grid { max-width: 1200px; margin: 0 auto; display: grid; gap: 20px; }
.features-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; transition: all var(--transition-fast); }
.feature-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.feature-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: color-mix(in srgb, var(--primary) 12%, transparent); color: var(--primary); margin-bottom: 16px; }
.feature-card h3 { font-size: 1.1rem; margin: 0 0 8px; }
.feature-card p { font-size: 0.95rem; color: var(--text-2); margin: 0; }

.showcase-grid { grid-template-columns: 1fr 1fr; align-items: center; gap: 48px; }
.showcase-list { display: flex; flex-direction: column; gap: 18px; }
.showcase-item { display: flex; gap: 14px; align-items: flex-start; }
.showcase-num { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--primary); color: #081017; font-weight: 700; font-size: 0.9rem; flex-shrink: 0; }
.showcase-item h4 { margin: 0 0 4px; }
.showcase-item p { margin: 0; color: var(--text-2); font-size: 0.95rem; }

.pricing-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.price-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; display: flex; flex-direction: column; }
.price-card.pop { border-color: var(--primary); background: linear-gradient(180deg, color-mix(in srgb, var(--primary) 8%, var(--surface)) 0%, var(--surface) 100%); }
.price-card .badge { display: inline-block; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; padding: 4px 10px; border-radius: 999px; background: var(--primary); color: #081017; margin-bottom: 10px; width: fit-content; }
.price-card h3 { font-size: 1.25rem; margin: 0 0 6px; }
.price-card .price { font-size: 2.4rem; font-weight: 800; margin: 16px 0; }
.price-card .price span { font-size: 0.95rem; color: var(--muted); font-weight: 500; }
.price-card ul { list-style: none; padding: 0; margin: 0 0 24px; flex: 1; }
.price-card li { display: flex; align-items: center; gap: 10px; padding: 6px 0; color: var(--text-2); font-size: 0.95rem; }
.price-card li::before { content: ''; width: 16px; height: 16px; background: var(--success); border-radius: 50%; display: inline-block; }
.price-card button { width: 100%; }

.testimonials-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.tcard { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; }
.tcard p { font-size: 0.98rem; color: var(--text-2); margin: 0 0 16px; font-style: italic; }
.tcard .author { display: flex; align-items: center; gap: 10px; }
.tcard .author .ava { width: 40px; height: 40px; border-radius: 50%; background: var(--surface-2); }
.tcard .name { font-weight: 600; font-size: 0.95rem; }
.tcard .role { font-size: 0.82rem; color: var(--muted); }

.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-q { width: 100%; padding: 16px 18px; display: flex; align-items: center; justify-content: space-between; font-weight: 600; text-align: left; font-size: 0.98rem; color: var(--text); }
.faq-q svg { width: 18px; height: 18px; color: var(--muted); transition: transform var(--transition-fast); }
.faq-item.open .faq-q svg { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height var(--transition); }
.faq-item.open .faq-a { max-height: 240px; }
.faq-a p { padding: 0 18px 18px; margin: 0; color: var(--text-2); font-size: 0.95rem; }

.newsletter { text-align: center; }
.newsletter form { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; max-width: 520px; margin: 24px auto 0; }
.newsletter input { flex: 1; min-width: 220px; height: 44px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--text); outline: none; font: inherit; }
.newsletter input:focus { border-color: var(--primary); }
.newsletter .note { font-size: 0.82rem; color: var(--muted); margin-top: 10px; }

.landing-footer { margin-top: auto; background: var(--bg-1); border-top: 1px solid var(--border); padding: 48px 20px 28px; }
.landing-footer .container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 32px; }
.landing-footer .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; margin-bottom: 12px; }
.landing-footer .brand p { font-size: 0.9rem; color: var(--text-2); margin: 0; max-width: 260px; }
.landing-footer h4 { font-size: 0.95rem; margin: 0 0 12px; color: var(--text); }
.landing-footer a { display: block; color: var(--text-2); font-size: 0.9rem; padding: 4px 0; }
.landing-footer a:hover { color: var(--text); }
.landing-footer .copy { text-align: center; margin-top: 40px; color: var(--muted); font-size: 0.85rem; }

.btn-lg { padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 1rem; }
.btn-ghost { border: 1px solid var(--border); color: var(--text); background: transparent; }
.btn-ghost:hover { background: var(--surface-1); }

@media (max-width: 900px) {
  .hero-grid, .showcase-grid, .landing-footer .container { grid-template-columns: 1fr; }
  .hero .mock { order: -1; transform: none; }
  .landing-header nav { display: none; }
}