/* =========================================
   TechFlip — styles.css
   Premium tech brand stylesheet
   ========================================= */

/* --- CUSTOM PROPERTIES --- */
:root {
  --black: #0a0a0a;
  --dark: #111111;
  --dark-2: #1a1a1a;
  --dark-3: #222222;
  --border: #2a2a2a;
  --border-light: #333333;
  --muted: #555555;
  --text-secondary: #888888;
  --text: #d4d4d4;
  --white: #f5f5f5;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --blue-dim: rgba(37, 99, 235, 0.12);
  --blue-glow: rgba(37, 99, 235, 0.2);
  --whatsapp: #25d366;

  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --radius: 6px;
  --radius-lg: 12px;
  --container: 1200px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

  --font-base: 16px;
  --font-scale: 1;
}

/* --- HIGH CONTRAST MODE --- */
body.high-contrast {
  --black: #000;
  --dark: #000;
  --dark-2: #111;
  --dark-3: #111;
  --border: #fff;
  --border-light: #fff;
  --muted: #aaa;
  --text-secondary: #ccc;
  --text: #fff;
  --white: #fff;
  --blue: #4d9fff;
  --blue-light: #6ab4ff;
}

/* --- RESET --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: calc(var(--font-base) * var(--font-scale)); }
body {
  background: var(--black);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }
input, select, textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--dark-3);
  color: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  width: 100%;
  transition: border-color var(--transition);
}
/* Fix: reset appearance only for text inputs, NOT checkboxes/radios */
input:not([type="checkbox"]):not([type="radio"]),
select,
textarea {
  -webkit-appearance: none;
  appearance: none;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-color: var(--blue);
}
/* Checkboxes and radios - restore native appearance */
input[type="checkbox"],
input[type="radio"] {
  width: 18px !important;
  height: 18px !important;
  min-width: 18px;
  padding: 0 !important;
  cursor: pointer;
  accent-color: var(--blue);
  flex-shrink: 0;
  -webkit-appearance: auto;
  appearance: auto;
  border-radius: 3px;
}
input[type="radio"] { border-radius: 50%; }
input[type="checkbox"]:focus-visible,
input[type="radio"]:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
textarea { resize: vertical; min-height: 100px; }

/* --- SKIP LINK --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: var(--blue);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* --- ACCESSIBILITY PANEL --- */
.a11y-panel {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 900;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}
.a11y-toggle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.a11y-toggle:hover, .a11y-toggle:focus-visible {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}
.a11y-toggle:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.a11y-controls {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
}
.a11y-controls button {
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius);
  background: var(--dark-3);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid var(--border-light);
  transition: all var(--transition);
  text-align: center;
}
.a11y-controls button:hover { background: var(--blue); color: #fff; border-color: var(--blue); }
.a11y-controls button:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* --- CONTAINER --- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}
@media (max-width: 768px) { .container { padding: 0 1.25rem; } }

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  transition: all var(--transition);
  cursor: pointer;
  border: 1.5px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.btn-primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-light); border-color: var(--blue-light); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--white); border-color: var(--border-light); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-sm { padding: 0.55rem 1.2rem; font-size: 0.82rem; }
.btn-lg { padding: 1rem 2.5rem; font-size: 1rem; }
.btn-whatsapp { background: var(--whatsapp); color: #fff; border-color: var(--whatsapp); }
.btn-whatsapp:hover { opacity: 0.9; transform: translateY(-1px); }

/* --- HEADER --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  background: transparent;
  transition: background var(--transition), padding var(--transition), border-bottom var(--transition);
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.85rem 0;
  border-bottom-color: var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
}

/* LOGO */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-svg { display: none; } /* Use text logo; swap if you want SVG */
.logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  line-height: 1;
}
.logo-tech { color: var(--white); }
.logo-flip { color: var(--blue); }
.logo-dot { color: var(--muted); font-size: 1rem; }

/* NAV */
.nav { flex: 1; }
.nav-list { display: flex; align-items: center; gap: 0.25rem; }
.nav-link {
  display: block;
  padding: 0.45rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius);
  transition: color var(--transition);
  position: relative;
}
.nav-link:hover { color: var(--white); }
.nav-link.active { color: var(--white); }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0.75rem;
  right: 0.75rem;
  height: 2px;
  background: var(--blue);
  border-radius: 1px;
}
.nav-link:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* HEADER ACTIONS */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

/* LANG SWITCHER */
.lang-switcher { display: flex; align-items: center; gap: 0.35rem; }
.lang-btn {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  padding: 0.2rem 0;
  border-radius: 2px;
  transition: color var(--transition);
}
.lang-btn:hover, .lang-btn.active { color: var(--white); }
.lang-btn.active { border-bottom: 1.5px solid var(--blue); }
.lang-btn:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.lang-sep { color: var(--border-light); font-size: 0.8rem; }

/* MENU TOGGLE */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  border-radius: var(--radius);
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 1px;
  transition: all 0.3s;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.menu-toggle:focus-visible { outline: 2px solid var(--blue); }

/* --- SECTIONS --- */
.section { padding: 7rem 0; }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 4rem; }
.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.85rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.section-desc { color: var(--text-secondary); max-width: 520px; margin: 0 auto; }

/* --- HERO --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 6rem;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}
.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(ellipse, var(--blue-glow) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 3rem 0 5rem;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.1s forwards;
}
.hero-label::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1.5px;
  background: var(--blue);
  flex-shrink: 0;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 5.5rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.75rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
  word-break: break-word;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.3s forwards;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.5s forwards;
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
  display: block;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-light);
  flex-shrink: 0;
}
.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: fadeIn 1s 1s forwards;
}
.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--blue), transparent);
  margin: 0 auto;
  animation: scrollPulse 2s ease-in-out infinite;
}

/* --- SERVICES --- */
.services { background: var(--dark); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.service-card {
  background: var(--dark-2);
  padding: 2.5rem;
  position: relative;
  transition: background var(--transition);
}
.service-card:hover { background: var(--dark-3); }
.service-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--blue);
  margin-bottom: 1.25rem;
}
.service-icon {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  transition: color var(--transition);
}
.service-card:hover .service-icon { color: var(--blue-light); }
.service-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.service-text { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.65; margin-bottom: 1.25rem; }
.service-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.service-tags span {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--blue);
  background: var(--blue-dim);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
}

/* --- WHY --- */
.why { background: var(--black); }
.why-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.why-left .section-title { text-align: left; }
.why-desc { color: var(--text-secondary); margin-top: 1rem; }
.why-right { display: flex; flex-direction: column; gap: 0; }
.why-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}
.why-item:last-child { border-bottom: none; }
.why-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--blue-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.why-item strong { display: block; color: var(--white); font-weight: 600; margin-bottom: 0.3rem; }
.why-item p { font-size: 0.9rem; color: var(--text-secondary); }

/* --- PROCESS --- */
.process { background: var(--dark); }
.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}
.process-step {
  flex: 1;
  padding: 2rem 2rem;
  background: var(--dark-2);
  border: 1px solid var(--border);
}
.process-step:first-child { border-radius: var(--radius-lg) 0 0 var(--radius-lg); }
.process-step:last-child { border-radius: 0 var(--radius-lg) var(--radius-lg) 0; }
.process-step + .process-step { border-left: none; }
.process-connector { display: none; }
.step-num {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--blue);
  margin-bottom: 1rem;
}
.step-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.6rem;
}
.step-text { font-size: 0.88rem; color: var(--text-secondary); }

/* --- DEMO FORM --- */
.demo-section { background: var(--black); }
.demo-form { max-width: 860px; margin: 0 auto; }
.form-group {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  margin-bottom: 1.5rem;
  background: var(--dark-2);
}
.form-legend {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blue);
  text-transform: uppercase;
  padding: 0 0.75rem;
  margin-left: -0.75rem;
  margin-bottom: 1.5rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
.form-row.three-col { grid-template-columns: 1fr 1fr 1fr; }
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1rem;
}
.form-field:last-child { margin-bottom: 0; }
.form-field label {
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}
.field-error {
  font-size: 0.78rem;
  color: #ef4444;
  min-height: 1em;
}
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.sections-grid { gap: 0.6rem; }
.check-label, .radio-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.check-label:hover, .radio-label:hover { color: var(--white); }
.check-label input, .radio-label input {
  width: 18px !important;
  height: 18px !important;
  accent-color: var(--blue);
  margin: 0;
  flex-shrink: 0;
  cursor: pointer;
}
.radio-group { display: flex; gap: 1.5rem; }
.form-submit { text-align: center; padding-top: 1rem; }
.form-note { font-size: 0.82rem; color: var(--muted); margin-top: 0.75rem; }
.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2.5rem;
  text-align: center;
  color: var(--blue-light);
}

/* --- TUTORIALS --- */
.tutorials { background: var(--dark); }
.tutorials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.tut-card {
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color var(--transition), transform var(--transition);
}
.tut-card:hover {
  border-color: var(--blue);
  transform: translateY(-3px);
}
.tut-icon { color: var(--blue); margin-bottom: 1rem; }
.tut-category {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.tut-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.6rem;
}
.tut-card p { font-size: 0.86rem; color: var(--text-secondary); margin-bottom: 1.25rem; }
.tut-link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--blue);
  transition: color var(--transition);
}
.tut-link:hover { color: var(--blue-light); }
.tut-link:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 2px; }

/* --- COMMUNITY --- */
.community { background: var(--black); }
.community-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: center;
}
.community-left .section-title { text-align: left; margin-bottom: 1rem; }
.community-left p { color: var(--text-secondary); margin-bottom: 2rem; }
.community-right { display: flex; flex-direction: column; gap: 0; }
.forum-category {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  transition: border-color var(--transition);
}
.forum-category:hover { border-color: var(--blue); }
.forum-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--blue-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  flex-shrink: 0;
}
.forum-info { flex: 1; }
.forum-info strong { display: block; color: var(--white); font-size: 0.9rem; margin-bottom: 0.2rem; }
.forum-info span { font-size: 0.8rem; color: var(--text-secondary); }
.forum-count {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--muted);
  flex-shrink: 0;
}

/* --- STORE --- */
.store { background: var(--dark); }
.coming-soon-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--blue);
  padding: 0.2rem 0.7rem;
  border-radius: 3px;
  margin-bottom: 1.25rem;
}
.store-grid {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.store-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem 1.5rem;
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-width: 140px;
  transition: border-color var(--transition);
  color: var(--text-secondary);
}
.store-item:hover { border-color: var(--blue); color: var(--white); }
.store-icon { color: inherit; }
.store-item span { font-size: 0.85rem; font-weight: 500; }

/* --- MARKETPLACE --- */
.marketplace { background: var(--black); }
.marketplace-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.marketplace-left .coming-soon-badge { margin-bottom: 1rem; }
.marketplace-left .section-title { text-align: left; margin-bottom: 1rem; }
.marketplace-left p { color: var(--text-secondary); }
.market-form {
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
}
.market-form h3 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

/* --- CONTACT --- */
.contact-section { background: var(--dark); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-item { display: flex; align-items: center; gap: 1rem; }
.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  flex-shrink: 0;
}
.contact-link { color: var(--text); transition: color var(--transition); font-size: 0.95rem; }
.contact-link:hover { color: var(--blue-light); }
.contact-link:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 2px; }
.contact-form { display: flex; flex-direction: column; gap: 0; }
.contact-form .form-field { margin-bottom: 1rem; }

/* --- FOOTER --- */
.footer { background: var(--black); border-top: 1px solid var(--border); padding-top: 4rem; }
.footer-inner {
  display: flex;
  gap: 4rem;
  padding-bottom: 3.5rem;
}
.footer-brand { flex: 0 0 260px; }
.footer-logo .logo-text { font-size: 1.15rem; }
.footer-tagline { font-size: 0.88rem; color: var(--muted); margin-top: 0.75rem; max-width: 200px; line-height: 1.55; }
.footer-nav {
  flex: 1;
  display: flex;
  gap: 3rem;
  justify-content: flex-end;
}
.footer-col { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-col-title {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}
.footer-col a { font-size: 0.88rem; color: var(--muted); transition: color var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-col a:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 2px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--muted);
}

/* --- SCROLL REVEAL --- */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.65s ease, transform 0.65s ease;
}
@media (prefers-reduced-motion: no-preference) {
  .reveal.pre-reveal {
    opacity: 0;
    transform: translateY(22px);
  }
  .reveal.pre-reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- ANIMATIONS --- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; height: 60px; }
  50% { opacity: 1; height: 80px; }
}

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .tutorials-grid { grid-template-columns: repeat(2, 1fr); }
  .why-inner { gap: 3rem; }
  .community-inner { gap: 3rem; }
}

@media (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; }
  .process-step:first-child { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .process-step:last-child { border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
  .process-step + .process-step { border-left: 1px solid var(--border); border-top: none; }
}
section {
  scroll-margin-top: 100px;
}
@media (max-width: 768px) {
  .section { padding: 5rem 0; }

  /* Header mobile */
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--black);
    padding: 6rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 99;
  }
  .nav.open { transform: translateX(0); }
  .nav-list { flex-direction: column; align-items: flex-start; gap: 0; }
  .nav-link { font-size: 1.25rem; padding: 1rem 0; border-bottom: 1px solid var(--border); width: 100%; }
  .nav-link.active::after { display: none; }
  .menu-toggle { display: flex; position: relative; z-index: 100; }
  .btn-sm { display: none; }

  /* Grids */
  .why-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .community-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .marketplace-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .tutorials-grid { grid-template-columns: 1fr; }

  /* Footer */
  .footer-inner { flex-direction: column; gap: 2.5rem; }
  .footer-brand { flex: auto; }
  .footer-nav { flex-direction: column; gap: 2rem; justify-content: flex-start; }
  .footer-bottom .container { flex-direction: column; gap: 0.35rem; text-align: center; }

  /* Hero mobile */
  .hero-content { padding-left: 1.25rem; padding-right: 1.25rem; }

  /* Form */
  .form-row { grid-template-columns: 1fr; }
  .form-row.three-col { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 1rem; }

  /* Accessibility panel mobile */
  .a11y-panel { bottom: 1rem; right: 1rem; }
  .a11y-toggle { width: 36px; height: 36px; font-size: 0.85rem; }
  .stat-divider { width: 40px; height: 1px; }
}