/* ============================================================
   Quick Wa Link — Landing Page Styles (index.css)
   ============================================================ */

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Radial glow behind content */
.hero-bg::before {
  content: '';
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse at center,
    rgba(7, 94, 84, 0.35) 0%,
    rgba(7, 94, 84, 0.10) 45%,
    transparent 70%
  );
  border-radius: 50%;
}

/* Dot-grid texture */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse at 50% 40%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 40%, black 30%, transparent 70%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-block: var(--space-24) var(--space-20);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.hero-content {}

.hero-badge {
  margin-bottom: var(--space-6);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

.hero-headline-accent {
  background: linear-gradient(135deg, var(--green-400) 0%, var(--green-600) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.hero-subheadline {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 500px;
  margin-bottom: var(--space-8);
}

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

.hero-stats {
  display: flex;
  gap: var(--space-8);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-subtle);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Hero visual — phone mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

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

.hero-phone-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(ellipse at 50% 50%, var(--glow-green), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-subheadline { max-width: 100%; margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2.25rem; }
  .hero-stats { gap: var(--space-6); }
}

/* ── How It Works ────────────────────────────────────────── */
.how-it-works { background: var(--bg-raised); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  position: relative;
  margin-bottom: var(--space-20);
}

/* Connector line */
.steps-grid::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 2px;
  background: linear-gradient(90deg, var(--green-800), var(--green-700), var(--green-800));
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

.step-card {
  position: relative;
  z-index: 1;
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  transition: border-color var(--transition-mid), transform var(--transition-mid);
}

.step-card:hover {
  border-color: var(--border-mid);
  transform: translateY(-4px);
}

.step-number {
  font-family: var(--font-display);
  font-size: 0.5rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--green-700);
  background: var(--bg-raised);
  border: 2px solid var(--green-900);
  border-radius: var(--radius-full);
  padding: 4px;
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}

.step-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-3);
  line-height: 1;
}

.step-title {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.step-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.section-divider {
  height: 1px;
  background: var(--border-subtle);
  margin-bottom: var(--space-16);
}

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

.use-case-card {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--transition-mid), transform var(--transition-mid);
  cursor: default;
}

.use-case-card:hover {
  border-color: rgba(37, 211, 102, 0.25);
  transform: translateY(-2px);
}

.use-case-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-3);
  line-height: 1;
}

.use-case-title {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.use-case-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

@media (max-width: 900px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid::before { display: none; }
  .use-cases-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  .steps-grid { grid-template-columns: 1fr; }
  .use-cases-grid { grid-template-columns: 1fr; }
}

/* ── About Section ───────────────────────────────────────── */
.about-inner {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: var(--space-12);
  align-items: start;
}

.dev-card {
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}

.dev-avatar-wrap {
  position: relative;
  width: 280px;
  margin: 0 auto var(--space-5);
}

.dev-avatar {
  width: 280px;
  height: 280px;
  border-radius: 50% 10% 10% 100% / 0% 60% 40% 40%;
  object-fit: cover;
  border: 3px solid var(--green-800);
}

.dev-avatar-badge {
  position: absolute;
  bottom: -4px;
  right: -4px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg-raised);
  border: 2px solid var(--bg-raised);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
}

.dev-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--space-1);
}

.dev-handle {
  text-align: center;
  font-size: 1rem;
  color: var(--green-500);
  font-weight: 600;
  margin-bottom: var(--space-5);
}

.dev-bio {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  text-align: center;
  margin-bottom: var(--space-5);
}

.dev-socials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.dev-social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.dev-social-btn:hover {
  background: var(--surface-2);
  color: var(--text-primary);
  border-color: var(--border-mid);
}

.dev-social-btn.wa-btn:hover {
  background: rgba(37, 211, 102, 0.1);
  border-color: rgba(37, 211, 102, 0.3);
  color: var(--green-400);
}

.about-app-info {}

.app-features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.app-feature {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-5);
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.app-feature-icon {
  font-size: 1.375rem;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 2px;
}

.app-feature-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.app-feature-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.changelog {
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--green-700);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.changelog-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--green-400);
  margin-bottom: var(--space-4);
  letter-spacing: 0.02em;
}

.changelog-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.changelog-list li {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  padding-left: var(--space-5);
  position: relative;
  line-height: 1.6;
}

.changelog-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green-500);
  font-weight: 700;
  font-size: 0.75rem;
}

@media (max-width: 900px) {
  .about-inner { grid-template-columns: 1fr; }
  .dev-card { position: static; }
}

@media (max-width: 520px) {
  .app-features-grid { grid-template-columns: 1fr; }
}

/* ── Contact Section ─────────────────────────────────────── */
.contact-inner {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: var(--space-12);
  align-items: start;
}

.contact-info-col {}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

/* ── Contact section background ──────────────────────────── */
#contact { background: var(--bg-raised); }

/* ── About section title size variant ───────────────────── */
.section-title--about { font-size: clamp(1.75rem, 4vw, 2.75rem); }

/* ── Contact subtitle — no bottom margin ────────────────── */
.contact-subtitle { margin-bottom: 0; }

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-mid);
}

.contact-method:hover {
  border-color: var(--border-mid);
  background: var(--surface-2);
  transform: translateX(4px);
}

.contact-method-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.contact-method-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.contact-method-hint {
  font-size: 0.775rem;
  color: var(--text-muted);
}

.contact-method-arrow {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 1rem;
  transition: transform var(--transition-fast);
}

.contact-method:hover .contact-method-arrow {
  transform: translateX(4px);
  color: var(--text-secondary);
}

.contact-form-card {
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.contact-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.contact-form-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.privacy-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.6;
}

.success-state {
  text-align: center;
  padding: var(--space-12) var(--space-8);
}

.success-icon { font-size: 3rem; margin-bottom: var(--space-5); }

.success-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.success-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  max-width: 400px;
  margin-inline: auto;
  margin-bottom: var(--space-6);
  line-height: 1.7;
}

.success-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .contact-inner { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .contact-form-grid { grid-template-columns: 1fr; }
  .contact-form-card { padding: var(--space-6); }
}