/* ============================================================
   41studio — Global Styles
   ============================================================ */

:root {
  /* Light palette */
  --bg-primary:    #f5f5f7;
  --bg-secondary:  #ffffff;
  --bg-card:       #ffffff;
  --border:        rgba(0,0,0,.08);
  --text-primary:  #1d1d1f;
  --text-secondary:#6e6e73;
  --text-muted:    #a1a1a6;
  --accent:        #6B46FF;
  --accent-soft:   rgba(107,70,255,.12);
  --accent-hover:  #5535d4;
  --shadow-sm:     0 2px 12px rgba(0,0,0,.06);
  --shadow-md:     0 8px 32px rgba(0,0,0,.10);
  --shadow-lg:     0 20px 60px rgba(0,0,0,.14);
  --radius-sm:     10px;
  --radius-md:     16px;
  --radius-lg:     24px;
  --nav-h:         64px;
  --transition:    .25s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"] {
  --bg-primary:    #0a0a0f;
  --bg-secondary:  #111118;
  --bg-card:       #16161e;
  --border:        rgba(255,255,255,.07);
  --text-primary:  #f0f0f5;
  --text-secondary:#9898a8;
  --text-muted:    #55556a;
  --accent:        #7c5cff;
  --accent-soft:   rgba(124,92,255,.15);
  --accent-hover:  #9370ff;
  --shadow-sm:     0 2px 12px rgba(0,0,0,.3);
  --shadow-md:     0 8px 32px rgba(0,0,0,.4);
  --shadow-lg:     0 20px 60px rgba(0,0,0,.6);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

/* ── Full-page gradient (hero orbs extended) ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 55% at 0% 0%,   rgba(107,70,255,.32) 0%, transparent 100%),
    radial-gradient(ellipse 60% 65% at 100% 100%, rgba(168,85,247,.26) 0%, transparent 100%),
    radial-gradient(ellipse 45% 40% at 65% 38%,  rgba(59,130,246,.13) 0%, transparent 100%),
    var(--bg-primary);
}

[data-theme="light"] body::before {
  background:
    radial-gradient(ellipse 70% 55% at 0% 0%,   rgba(107,70,255,.12) 0%, transparent 100%),
    radial-gradient(ellipse 60% 65% at 100% 100%, rgba(168,85,247,.09) 0%, transparent 100%),
    radial-gradient(ellipse 45% 40% at 65% 38%,  rgba(59,130,246,.06) 0%, transparent 100%),
    var(--bg-primary);
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }

img { display: block; max-width: 100%; }

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 32px;
  background: rgba(var(--bg-secondary-rgb, 255,255,255), .75);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}

[data-theme="dark"] .nav {
  background: rgba(10,10,15,.75);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: -.02em;
}

.nav__logo-mark {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, #6B46FF 0%, #a855f7 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.02em;
  flex-shrink: 0;
}

.nav__logo-img {
  height: 28px;
  width: auto;
  max-width: 140px;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}

.nav__logo-text {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -.02em;
  color: var(--text-primary);
}

/* ── Hero logo ── */
.hero__logo {
  height: 100px;
  width: auto;
  max-width: min(240px, 60vw);
  object-fit: contain;
  display: block;
  margin: 0 auto 28px;
  opacity: 0;
  transform: translateY(20px) scale(0.88);
  animation: heroLogoIn .8s .05s cubic-bezier(.16,1,.3,1) forwards;
}

@keyframes heroLogoIn {
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 640px) {
  .hero__logo { height: 80px; }
}

.nav__spacer { flex: 1; }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 600;
  transition: all var(--transition);
  letter-spacing: .01em;
}

.btn-icon:hover {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

.btn-icon.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

.lang-toggle {
  display: flex;
  gap: 2px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 3px;
}

.lang-btn {
  padding: 4px 10px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: .75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: .04em;
}

.lang-btn.active {
  background: var(--accent);
  color: #fff;
}

/* ── Hero ── */
.hero {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-h) + 32px) 24px 56px;
}

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

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .35;
  animation: float 8s ease-in-out infinite;
}

.hero__orb--1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #6B46FF 0%, transparent 70%);
  top: -100px; left: -100px;
  animation-delay: 0s;
}

.hero__orb--2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #a855f7 0%, transparent 70%);
  bottom: -80px; right: -80px;
  animation-delay: -3s;
}

.hero__orb--3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #3b82f6 0%, transparent 70%);
  top: 40%; left: 60%;
  animation-delay: -6s;
  opacity: .2;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-30px) scale(1.05); }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  border: 1px solid rgba(107,70,255,.25);
  color: var(--accent);
  border-radius: 99px;
  padding: 6px 16px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 28px;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp .6s .1s forwards;
}

.hero__badge-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .5; transform: scale(1.4); }
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -.04em;
  line-height: 1.05;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp .6s .2s forwards;
}

.hero__title-gradient {
  background: linear-gradient(135deg, #6B46FF 0%, #a855f7 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 40px;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp .6s .3s forwards;
}

.hero__cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp .6s .4s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  letter-spacing: -.01em;
}

.btn--primary {
  background: linear-gradient(135deg, #6B46FF, #a855f7);
  color: #fff;
  box-shadow: 0 4px 20px rgba(107,70,255,.4);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(107,70,255,.5);
  color: #fff;
}

.btn--secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn--secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ── Scroll indicator ── */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeUp .6s .9s forwards;
}

.scroll-indicator__wheel {
  width: 22px; height: 36px;
  border: 2px solid var(--text-muted);
  border-radius: 11px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 5px;
}

.scroll-indicator__dot {
  width: 4px; height: 4px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
  0%   { opacity: 1; transform: translateY(0); }
  80%  { opacity: 0; transform: translateY(12px); }
  100% { opacity: 0; transform: translateY(12px); }
}

/* ── Section ── */
section {
  padding: 96px 24px;
}

.section__header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

.section__label {
  display: inline-block;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section__desc {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ── Apps Grid ── */
.apps-section {
  background: transparent;
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 420px));
  gap: 24px;
  width: fit-content;
  margin: 0 auto;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

.app-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-soft) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: inherit;
}

.app-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(107,70,255,.3);
  color: inherit;
}

.app-card:hover::before { opacity: 1; }

.app-card__header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.app-card__icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-card__icon svg {
  width: 36px; height: 36px;
}

.app-card__meta { flex: 1; }

.app-card__name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 4px;
}

.app-card__category {
  font-size: .75rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.app-card__desc {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  flex: 1;
}

.app-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.app-card__platform {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: .75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.app-card__store-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 8px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .01em;
  transition: all var(--transition);
  border: 1px solid rgba(107,70,255,.2);
}

.app-card__store-btn:hover {
  background: var(--accent);
  color: #fff;
}

/* ── App placeholder icon gradients ── */
.icon-grad-1 { background: linear-gradient(135deg, #6B46FF, #a855f7); }
.icon-grad-2 { background: linear-gradient(135deg, #f97316, #ef4444); }
.icon-grad-3 { background: linear-gradient(135deg, #10b981, #059669); }
.icon-grad-4 { background: linear-gradient(135deg, #3b82f6, #6366f1); }
.icon-grad-5 { background: linear-gradient(135deg, #ec4899, #f43f5e); }
.icon-grad-6 { background: linear-gradient(135deg, #f59e0b, #eab308); }

/* ── Stats ── */
.stats-section { background: transparent; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-card__number {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -.04em;
  background: linear-gradient(135deg, #6B46FF, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}

.stat-card__label {
  font-size: .82rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: .01em;
}

/* ── About ── */
.about-section { background: transparent; }

.about-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.about-inner p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 16px;
}

/* ── Contact ── */
.contact-section { background: transparent; }

.contact-cards {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 700px;
  margin: 0 auto;
}

.contact-card {
  flex: 1;
  min-width: 180px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(107,70,255,.3);
}

.contact-card__icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 1.2rem;
}

.contact-card__label {
  font-size: .72rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.contact-card__value {
  font-size: .85rem;
  color: var(--accent);
  font-weight: 500;
}

/* ── Footer ── */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 40px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: .95rem;
  color: var(--text-primary);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  font-size: .82rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.footer__links a:hover { color: var(--accent); }

.footer__copy {
  font-size: .78rem;
  color: var(--text-muted);
  width: 100%;
  text-align: center;
  margin-top: 8px;
}

/* ── Page header (subpages) ── */
.page-hero {
  padding: calc(var(--nav-h) + 64px) 24px 64px;
  text-align: center;
  background: transparent;
}

.page-hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -.04em;
  margin-bottom: 16px;
}

.page-hero__sub {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto;
}

/* ── Prose (privacy / support) ── */
.prose {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px 96px;
}

.prose h2 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin: 40px 0 12px;
  color: var(--text-primary);
}

.prose p, .prose li {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 12px;
  font-size: .95rem;
}

.prose ul, .prose ol {
  padding-left: 24px;
  margin-bottom: 12px;
}

.prose strong { color: var(--text-primary); font-weight: 600; }

.prose a { color: var(--accent); }

/* ── Support FAQ ── */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px 96px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: .95rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background var(--transition);
  letter-spacing: -.01em;
}

.faq-question:hover { background: var(--accent-soft); }

.faq-chevron {
  color: var(--accent);
  font-size: .85rem;
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.open .faq-chevron { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s cubic-bezier(.4,0,.2,1);
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: .9rem;
  line-height: 1.7;
}

.faq-item.open .faq-answer { max-height: 400px; }

/* ── Reveal animation ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .nav { padding: 0 20px; }
  section { padding: 72px 16px; }
  .apps-grid { grid-template-columns: 1fr; width: auto; }
  .footer { flex-direction: column; text-align: center; }
  .footer__links { justify-content: center; }
  .contact-cards { flex-direction: column; }
}