/* =============================================
   QuietStor — Liquid Noir Design System
   Background: #08070a | Accent: #22c55e
   Fonts: Syne (display), DM Sans (body), 
          Instrument Serif (accent), JetBrains Mono (code/labels)
   ============================================= */

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

:root {
  --bg: #08070a;
  --bg-raised: #0f0e13;
  --bg-card: rgba(255,255,255,0.025);
  --green: #22c55e;
  --green-dim: rgba(34,197,94,0.12);
  --green-glow: rgba(34,197,94,0.3);
  --green-subtle: rgba(34,197,94,0.06);
  --text: #f0ede8;
  --text-mid: rgba(240,237,232,0.55);
  --text-dim: rgba(240,237,232,0.35);
  --text-ghost: rgba(240,237,232,0.15);
  --border: rgba(255,255,255,0.06);
  --border-green: rgba(34,197,94,0.2);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 60px;
}

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* --- Inline SVG Icons (Lucide-style) --- */
.icon-svg {
  width: 28px;
  height: 28px;
  stroke: var(--green);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  flex-shrink: 0;
}

.icon-svg.sm { width: 18px; height: 18px; }
.icon-svg.lg { width: 36px; height: 36px; }
.icon-svg.dim { stroke: var(--text-mid); }

/* --- Labels & Tags --- */
.label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 3.5px;
  text-transform: uppercase;
  color: var(--green);
  display: inline-block;
}

/* --- Typography --- */
.t-display {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.05;
}

.t-accent {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-weight: 400;
  color: var(--green);
}

.t-section {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 2.8rem;
  letter-spacing: -1px;
  line-height: 1.1;
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: var(--green);
  color: var(--bg);
  border: none;
  border-radius: var(--radius-pill);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px var(--green-glow);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: none;
  color: var(--text-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.35s;
}

.btn-ghost:hover { border-color: var(--border-green); color: var(--green); }

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2.5rem;
  background: rgba(8,7,10,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.5px;
}

.site-logo img { width: 36px; height: 36px; border-radius: 8px; }
.brand-q { color: #22c55e; }

.site-nav { display: flex; align-items: center; gap: 2rem; }

.site-nav a {
  font-size: 0.85rem;
  color: var(--text-mid);
  transition: color 0.3s;
}

.site-nav a:hover { color: var(--green); }

/* Language selector */
.lang-sel {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.lang-btn {
  padding: 6px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 1px;
  background: none;
  color: var(--text-dim);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-btn:hover { color: var(--text); }
.lang-btn.active { background: var(--green-subtle); color: var(--green); }

/* --- Footer --- */
.site-footer {
  padding: 4rem 2.5rem 2rem;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.footer-brand img { width: 28px; height: 28px; border-radius: 6px; }

.footer-tagline {
  font-size: 0.82rem;
  color: var(--text-dim);
  max-width: 280px;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-dim);
  transition: color 0.3s;
}

.footer-links a:hover { color: var(--green); }

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-ghost);
}

.footer-bottom a { color: var(--text-dim); }
.footer-bottom a:hover { color: var(--green); }

/* --- Blob Animations --- */
.blob {
  position: absolute;
  border-radius: 40% 60% 60% 40% / 60% 30% 70% 40%;
  filter: blur(60px);
  pointer-events: none;
  animation: blobMorph 20s ease-in-out infinite;
}

@keyframes blobMorph {
  0%   { border-radius: 40% 60% 60% 40% / 60% 30% 70% 40%; transform: rotate(0deg) scale(1); }
  25%  { border-radius: 60% 40% 30% 70% / 40% 60% 40% 60%; transform: rotate(90deg) scale(1.05); }
  50%  { border-radius: 30% 70% 70% 30% / 70% 40% 60% 40%; transform: rotate(180deg) scale(0.95); }
  75%  { border-radius: 70% 30% 50% 50% / 30% 70% 30% 70%; transform: rotate(270deg) scale(1.02); }
  100% { border-radius: 40% 60% 60% 40% / 60% 30% 70% 40%; transform: rotate(360deg) scale(1); }
}

/* --- Feature Grid --- */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.feat-card {
  padding: 2.5rem;
  background: var(--bg);
  transition: background 0.4s;
}

.feat-card:hover { background: var(--bg-raised); }

.feat-card .icon-wrap {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-subtle);
  border: 1px solid var(--border-green);
  border-radius: 12px;
  margin-bottom: 1.25rem;
}

.feat-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feat-card p {
  font-size: 0.85rem;
  color: var(--text-mid);
  line-height: 1.75;
}

/* --- Price Cards --- */
.price-grid {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.price-card {
  flex: 1;
  max-width: 340px;
  padding: 2.5rem 2rem;
  border-radius: var(--radius-lg);
  text-align: left;
}

.price-card.free {
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.price-card.premium {
  background: var(--green-subtle);
  border: 1px solid var(--border-green);
  position: relative;
}

.price-card.premium::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius-lg) + 1px);
  background: linear-gradient(135deg, rgba(34,197,94,0.2), transparent 50%);
  z-index: -1;
}

.price-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.6rem;
}

.price-card.premium .price-tag { color: var(--green); }

.price-amount {
  font-family: 'Syne', sans-serif;
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 0.2rem;
}

.price-card.premium .price-amount { color: var(--green); }

.price-note {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.price-list {
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-mid);
}

.price-list li {
  padding: 0.4rem 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.price-list li .check {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-subtle);
  flex-shrink: 0;
}

.price-list li .check svg { width: 10px; height: 10px; stroke: var(--green); stroke-width: 2.5; }

.price-list li.dim { opacity: 0.3; }
.price-list li.dim .check { background: rgba(255,255,255,0.05); }
.price-list li.dim .check svg { stroke: var(--text-dim); }

/* --- Warning Box --- */
.warn-box {
  background: rgba(239,68,68,0.06);
  border: 1px solid rgba(239,68,68,0.15);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-mid);
  margin: 1.5rem 0;
}

.warn-box strong { color: #f87171; }

/* --- FAQ Accordion (for faq.html) --- */
.faq-section { margin-bottom: 2.5rem; }

.faq-section-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  background: none;
  border: none;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: color 0.3s;
}

.faq-q:hover { color: var(--green); }

.faq-q .chevron {
  width: 20px;
  height: 20px;
  stroke: var(--text-dim);
  transition: transform 0.3s, stroke 0.3s;
  flex-shrink: 0;
}

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

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1), padding 0.3s;
}

.faq-item.open .faq-a { max-height: 600px; padding-bottom: 1.25rem; }

.faq-a-inner {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.8;
}

.faq-a-inner strong { color: var(--text); }
.faq-a-inner ul { margin: 0.5rem 0; padding-left: 1rem; }
.faq-a-inner li { margin-bottom: 0.3rem; }

/* --- Language content blocks --- */
.lang-content { display: none; }
.lang-content.active { display: block; }

/* --- FAQ page --- */
.faq-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
}

.faq-wrap > h1 {
  font-family: 'Syne', sans-serif;
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 0.5rem;
}

.faq-intro {
  font-size: 1rem;
  color: var(--text-mid);
  margin-bottom: 3rem;
  line-height: 1.8;
}

/* --- Legal pages --- */
.legal-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
}

.legal-wrap h1 {
  font-family: 'Syne', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 0.5rem;
  word-break: break-word;
  overflow-wrap: break-word;
}

.legal-updated {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 3rem;
}

.legal-wrap h2 {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.legal-wrap p, .legal-wrap ul {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.legal-wrap ul { padding-left: 1.2rem; }
.legal-wrap li { margin-bottom: 0.4rem; }
.legal-wrap a { color: var(--green); }
.legal-wrap a:hover { text-decoration: underline; }

.legal-contact {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  color: var(--text-mid);
}

.legal-contact a { color: var(--green); font-weight: 500; }

/* --- Responsive --- */
@media (max-width: 900px) {
  .feat-grid { grid-template-columns: 1fr; }
  .price-grid { flex-direction: column; align-items: center; }
  .price-card { max-width: 100%; width: 100%; }
  .site-header { padding: 1rem 1.5rem; }
  .site-nav { gap: 1rem; }
  .site-nav a { font-size: 0.78rem; }
  .site-footer { grid-template-columns: 1fr; gap: 2rem; }
  .footer-links { flex-wrap: wrap; gap: 1rem; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 600px) {
  .site-nav a.hide-mobile { display: none; }
  .lang-sel { gap: 0; }
  .lang-btn { padding: 5px 7px; font-size: 0.6rem; }
  .legal-wrap h1 { font-size: 1.8rem; letter-spacing: -0.5px; }
  .legal-wrap { padding: 6rem 1.5rem 3rem; }
  .faq-wrap > h1 { font-size: 2rem; }
  .faq-wrap { padding: 6rem 1.5rem 3rem; }
}