/* =========================================================================
   Bulk Image Compressor — Shared Stylesheet
   A cohesive dark, premium SaaS theme (Vercel / Linear inspired).
   Mobile-first. Breakpoints at 768px and 1024px.
   Sections:
     1.  Design tokens (CSS variables)
     2.  Reset & base
     3.  Typography & layout helpers
     4.  Buttons
     5.  Header / navigation
     6.  Hero + particle canvas
     7.  The tool (drop zone, controls, results)
     8.  Content sections (steps, features, formats, use cases)
     9.  FAQ accordion
     10. Inner page banners & article content
     11. Contact form
     12. Footer + social icons
     13. Scroll-to-top button
     14. Animations & utilities
     15. Responsive breakpoints
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. DESIGN TOKENS
   ------------------------------------------------------------------------- */
:root {
  /* Accents */
  --primary:        #6366f1;   /* indigo */
  --primary-strong: #4f46e5;
  --primary-soft:   rgba(99, 102, 241, 0.14);
  --secondary:      #22d3ee;   /* cyan */
  --secondary-soft: rgba(34, 211, 238, 0.14);

  /* Neutral grays (dark theme) */
  --bg:        #0a0b0f;
  --bg-2:      #0f1117;
  --surface:   #12141c;
  --surface-2: #171a24;
  --border:    rgba(255, 255, 255, 0.08);
  --border-2:  rgba(255, 255, 255, 0.14);

  /* Text */
  --text:      #f4f5f7;
  --text-soft: #b4b8c4;
  --text-mute: #7c8091;

  /* States */
  --success:   #22c55e;
  --success-soft: rgba(34, 197, 94, 0.15);
  --error:     #ef4444;
  --error-soft: rgba(239, 68, 68, 0.15);
  --warning:   #f59e0b;

  /* Depth */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow:    0 8px 30px rgba(0,0,0,0.35);
  --shadow-lg: 0 24px 60px rgba(0,0,0,0.5);
  --glow:      0 0 40px rgba(99,102,241,0.35);

  /* Shape */
  --radius:    14px;
  --radius-sm: 10px;
  --radius-lg: 20px;

  /* Motion */
  --ease:      cubic-bezier(0.4, 0, 0.2, 1);
  --dur:       240ms;

  /* Rhythm */
  --section-pad: 96px;
  --container:  1180px;

  --theme-color: #0a0b0f;
}

/* -------------------------------------------------------------------------
   2. RESET & BASE
   ------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }

button { font-family: inherit; cursor: pointer; }

/* Visible focus rings for keyboard users */
:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
  border-radius: 6px;
}

/* Subtle scrollbar in supporting browsers */
::selection { background: var(--primary-soft); }

/* -------------------------------------------------------------------------
   3. TYPOGRAPHY & LAYOUT HELPERS
   ------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  color: var(--text);
}

h1 { font-size: clamp(2.2rem, 6vw, 4rem); }
h2 { font-size: clamp(1.7rem, 4vw, 2.6rem); }
h3 { font-size: clamp(1.15rem, 2.4vw, 1.4rem); }

p { margin: 0 0 1rem; color: var(--text-soft); }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 20px;
}

.section { padding-block: var(--section-pad); position: relative; }

.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head p { font-size: 1.05rem; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--secondary);
  margin-bottom: 14px;
}

.text-gradient {
  background: linear-gradient(120deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.muted { color: var(--text-mute); }

/* -------------------------------------------------------------------------
   4. BUTTONS
   ------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  transition: transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              background var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(120deg, var(--primary), var(--primary-strong));
  color: #fff;
  box-shadow: var(--shadow), var(--glow);
}
.btn-primary:hover { box-shadow: var(--shadow-lg), 0 0 55px rgba(99,102,241,0.5); }

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border-2);
}
.btn-secondary:hover { border-color: var(--secondary); background: var(--surface); }

.btn-ghost {
  background: transparent;
  border-color: var(--border-2);
  color: var(--text-soft);
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-soft); }

.btn-block { width: 100%; }
.btn-sm { padding: 9px 16px; font-size: 0.85rem; }

/* -------------------------------------------------------------------------
   5. HEADER / NAVIGATION
   ------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 11, 15, 0.6);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              background var(--dur) var(--ease);
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 6px 24px rgba(0,0,0,0.4);
  background: rgba(10, 11, 15, 0.82);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}
.brand .brand-mark {
  width: 30px; height: 30px;
  border-radius: 9px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: var(--glow);
  flex: none;
}
.brand .brand-mark svg { width: 17px; height: 17px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-soft);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a.active { color: var(--text); background: var(--primary-soft); }

.nav-cta { margin-left: 8px; }

/* Hamburger */
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--border-2);
  border-radius: 10px;
  background: var(--surface-2);
  position: relative;
  z-index: 120;
}
.nav-toggle span {
  position: absolute;
  left: 11px; right: 11px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease), top var(--dur) var(--ease);
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle.open span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* -------------------------------------------------------------------------
   6. HERO + PARTICLE CANVAS
   ------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: calc(100vh - 68px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}
#particle-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  display: block;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1000px 500px at 50% -10%, rgba(99,102,241,0.28), transparent 60%),
    radial-gradient(800px 400px at 80% 110%, rgba(34,211,238,0.18), transparent 60%),
    linear-gradient(180deg, rgba(10,11,15,0.4) 0%, rgba(10,11,15,0.75) 70%, var(--bg) 100%);
}
.hero-inner { max-width: 820px; padding: 40px 20px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-2);
  font-size: 0.82rem;
  color: var(--text-soft);
  margin-bottom: 26px;
  backdrop-filter: blur(6px);
}
.badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
}

.hero h1 { margin-bottom: 20px; }
.hero .subhead {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--text-soft);
  max-width: 620px;
  margin: 0 auto 34px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 30px;
}
.trust-row {
  display: flex;
  gap: 10px 22px;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-mute);
}
.trust-row span { display: inline-flex; align-items: center; gap: 7px; }
.trust-row svg { width: 15px; height: 15px; color: var(--success); }

/* -------------------------------------------------------------------------
   7. THE TOOL
   ------------------------------------------------------------------------- */
.tool-section { background:
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%); }

.tool-card {
  max-width: 980px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}

/* Drop zone */
.dropzone {
  border: 2px dashed var(--border-2);
  border-radius: var(--radius);
  padding: 56px 24px;
  text-align: center;
  background: var(--bg-2);
  transition: border-color var(--dur) var(--ease),
              background var(--dur) var(--ease),
              transform var(--dur) var(--ease);
  cursor: pointer;
}
.dropzone:hover { border-color: var(--primary); background: var(--surface-2); }
.dropzone.dragover {
  border-color: var(--secondary);
  background: var(--secondary-soft);
  transform: scale(1.015);
}
.dropzone .dz-icon {
  width: 58px; height: 58px;
  margin: 0 auto 16px;
  border-radius: 16px;
  display: grid; place-items: center;
  background: var(--primary-soft);
  color: var(--primary);
}
.dropzone .dz-icon svg { width: 28px; height: 28px; }
.dropzone h3 { margin-bottom: 6px; }
.dropzone p { margin: 0; font-size: 0.9rem; }
.dropzone .dz-formats { margin-top: 12px; font-size: 0.8rem; color: var(--text-mute); }

/* Controls */
.controls {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
  padding: 22px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.control label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-soft);
  margin-bottom: 10px;
}
.control .val { color: var(--secondary); font-weight: 700; }

input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 999px;
  background: var(--surface-2);
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid #fff;
  box-shadow: var(--glow);
  cursor: pointer;
  transition: transform var(--dur) var(--ease);
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--primary); border: 3px solid #fff; cursor: pointer;
}

select, input[type="number"], input[type="text"], input[type="email"], textarea {
  width: 100%;
  padding: 11px 13px;
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.92rem;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
select:focus, input:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
  outline: none;
}

/* Tool action row */
.tool-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
  justify-content: space-between;
  align-items: center;
}
.tool-actions .right { display: flex; gap: 10px; flex-wrap: wrap; }

/* Summary bar */
.summary-bar {
  display: none;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
  padding: 18px 22px;
  background: linear-gradient(120deg, var(--primary-soft), var(--secondary-soft));
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.summary-bar.show { display: flex; }
.summary-bar .stat { flex: 1 1 140px; }
.summary-bar .stat .k { font-size: 0.75rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.08em; }
.summary-bar .stat .v { font-size: 1.35rem; font-weight: 700; color: var(--text); }
.summary-bar .stat .v.saved { color: var(--success); }

/* Results grid */
.results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 22px;
}
.result-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.result-card:hover { border-color: var(--border-2); transform: translateY(-3px); }
.result-card .thumb {
  height: 150px;
  background: var(--surface-2);
  display: grid; place-items: center;
  overflow: hidden;
}
.result-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.result-card .rc-body { padding: 14px; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.result-card .fname {
  font-size: 0.85rem; font-weight: 600; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.result-card .sizes { font-size: 0.8rem; color: var(--text-mute); }
.result-card .sizes .arrow { color: var(--text-soft); }
.saved-pill {
  align-self: flex-start;
  font-size: 0.78rem; font-weight: 700;
  padding: 3px 10px; border-radius: 999px;
  background: var(--success-soft); color: var(--success);
}
.saved-pill.negative { background: var(--warning); color: #1a1400; }
.result-card .rc-foot { margin-top: auto; }

/* progress + errors */
.rc-progress {
  height: 4px; border-radius: 999px; background: var(--surface-2); overflow: hidden;
}
.rc-progress > i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 200ms linear;
}
.result-card.error { border-color: var(--error); }
.result-card .err-msg { font-size: 0.8rem; color: var(--error); }

.tool-message {
  margin-top: 16px; padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}
.tool-message.show { display: block; }
.tool-message.error { background: var(--error-soft); color: #fca5a5; border: 1px solid rgba(239,68,68,0.3); }
.tool-message.info { background: var(--primary-soft); color: #c7d2fe; border: 1px solid rgba(99,102,241,0.3); }

/* -------------------------------------------------------------------------
   8. CONTENT SECTIONS
   ------------------------------------------------------------------------- */
/* How it works */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
}
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
}
.step .num {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  font-weight: 700; font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--primary-soft); color: var(--primary);
  margin-bottom: 16px;
}
.step .step-icon { color: var(--secondary); margin-bottom: 12px; }
.step .step-icon svg { width: 24px; height: 24px; }
.step h3 { font-size: 1.1rem; }
.step p { font-size: 0.92rem; margin: 0; }

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}
.feature-card:hover {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), var(--glow);
  transform: translateY(-4px);
}
.feature-card .fi {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary-soft), var(--secondary-soft));
  color: var(--secondary);
  margin-bottom: 18px;
  transition: transform var(--dur) var(--ease);
}
.feature-card:hover .fi { transform: translateY(-4px) scale(1.06); }
.feature-card .fi svg { width: 26px; height: 26px; }
.feature-card h3 { font-size: 1.15rem; }
.feature-card p { font-size: 0.92rem; margin: 0; }

/* Supported formats */
.formats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 760px;
  margin: 0 auto;
}
.format-card {
  text-align: center;
  padding: 26px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.format-card:hover { transform: translateY(-3px); border-color: var(--border-2); }
.format-card .tag {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800; font-size: 1.3rem;
  color: var(--secondary); margin-bottom: 8px;
}
.format-card p { font-size: 0.86rem; margin: 0; }

/* Prose block (Why compress) */
.prose { max-width: 820px; margin: 0 auto; }
.prose h2 { margin-top: 1.4em; }
.prose h3 { margin-top: 1.2em; color: var(--text); }
.prose p { font-size: 1.02rem; }
.prose a { color: var(--secondary); text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--primary); }
.prose ul { color: var(--text-soft); padding-left: 1.2em; }
.prose li { margin-bottom: 0.5em; }

/* Use cases */
.usecases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
}
.usecase {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.usecase:hover { border-color: var(--border-2); transform: translateY(-3px); }
.usecase .uc-icon { color: var(--primary); margin-bottom: 12px; }
.usecase .uc-icon svg { width: 24px; height: 24px; }
.usecase h3 { font-size: 1.05rem; }
.usecase p { font-size: 0.9rem; margin: 0; }

/* -------------------------------------------------------------------------
   9. FAQ ACCORDION
   ------------------------------------------------------------------------- */
.faq { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--dur) var(--ease);
}
.faq-item.open { border-color: var(--border-2); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  background: transparent;
  border: none;
  text-align: left;
  color: var(--text);
  font-size: 1.02rem;
  font-weight: 600;
  font-family: 'Plus Jakarta Sans', sans-serif;
}
.faq-q .chev {
  flex: none;
  width: 20px; height: 20px;
  color: var(--text-mute);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}
.faq-item.open .faq-q .chev { transform: rotate(180deg); color: var(--secondary); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 320ms var(--ease);
}
.faq-a .faq-a-inner { padding: 0 22px 20px; }
.faq-a p { margin: 0; font-size: 0.96rem; }

/* -------------------------------------------------------------------------
   10. INNER PAGE BANNERS & ARTICLE CONTENT
   ------------------------------------------------------------------------- */
.page-banner {
  position: relative;
  padding: 88px 20px 72px;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(700px 300px at 50% -20%, rgba(99,102,241,0.3), transparent 60%),
    linear-gradient(180deg, var(--bg-2), var(--bg));
  border-bottom: 1px solid var(--border);
}
.page-banner h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 10px; }
.page-banner p { max-width: 620px; margin: 0 auto; font-size: 1.05rem; }
.breadcrumb { font-size: 0.85rem; color: var(--text-mute); margin-bottom: 16px; }
.breadcrumb a:hover { color: var(--secondary); }

.article { max-width: 820px; margin: 0 auto; }
.article h2 { margin-top: 1.6em; }
.article h3 { margin-top: 1.3em; color: var(--text); }
.article p, .article li { font-size: 1.02rem; color: var(--text-soft); }
.article a { color: var(--secondary); text-decoration: underline; text-underline-offset: 3px; }
.article ul { padding-left: 1.2em; }
.article li { margin-bottom: 0.5em; }
.article .updated { font-size: 0.85rem; color: var(--text-mute); margin-bottom: 2em; }

/* Info cards used on About/Contact */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin: 34px 0;
}
.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.info-card .ic-icon { color: var(--secondary); margin-bottom: 12px; }
.info-card h3 { font-size: 1.1rem; }
.info-card p { font-size: 0.92rem; margin: 0; }

/* -------------------------------------------------------------------------
   11. CONTACT FORM
   ------------------------------------------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 34px;
  align-items: start;
}
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
}
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; color: var(--text-soft); }
.field .hint { display: block; font-size: 0.78rem; color: var(--error); margin-top: 6px; min-height: 1em; }
.field textarea { min-height: 130px; resize: vertical; }
.field.invalid input, .field.invalid textarea { border-color: var(--error); box-shadow: 0 0 0 3px var(--error-soft); }

.form-success {
  display: none;
  padding: 16px 18px;
  background: var(--success-soft);
  border: 1px solid rgba(34,197,94,0.35);
  border-radius: var(--radius-sm);
  color: #86efac;
  font-size: 0.95rem;
  margin-bottom: 20px;
}
.form-success.show { display: block; }

.contact-aside .info-card { margin-bottom: 16px; }
.contact-aside a { color: var(--secondary); }

/* -------------------------------------------------------------------------
   12. FOOTER + SOCIAL ICONS
   ------------------------------------------------------------------------- */
.site-footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding-top: 64px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-col h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-mute);
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 11px; }
.footer-col a { color: var(--text-soft); font-size: 0.92rem; transition: color var(--dur) var(--ease); }
.footer-col a:hover { color: var(--secondary); }
.footer-about p { font-size: 0.92rem; max-width: 300px; }
.footer-about .brand { margin-bottom: 14px; }

/* Social icons */
.socials { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.social {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  color: var(--text-mute);
  transition: transform 300ms var(--ease),
              background 300ms var(--ease),
              color 300ms var(--ease),
              box-shadow 300ms var(--ease),
              border-color 300ms var(--ease);
}
.social svg { width: 18px; height: 18px; transition: color 300ms var(--ease); }
.social:hover { transform: translateY(-4px) scale(1.1); color: #fff; border-color: transparent; }

.social.facebook:hover  { background: #1877F2; box-shadow: 0 8px 22px rgba(24,119,242,0.5); }
.social.twitter:hover   { background: #000000; box-shadow: 0 8px 22px rgba(0,0,0,0.6); }
.social.instagram:hover { background: linear-gradient(45deg,#F58529,#DD2A7B,#8134AF,#515BD4); box-shadow: 0 8px 22px rgba(221,42,123,0.5); }
.social.youtube:hover   { background: #FF0000; box-shadow: 0 8px 22px rgba(255,0,0,0.5); }
.social.linkedin:hover  { background: #0A66C2; box-shadow: 0 8px 22px rgba(10,102,194,0.5); }
.social.pinterest:hover { background: #E60023; box-shadow: 0 8px 22px rgba(230,0,35,0.5); }

.footer-bar {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-mute);
}
.footer-bar a { color: var(--text-soft); }
.footer-bar a:hover { color: var(--secondary); }

/* -------------------------------------------------------------------------
   13. SCROLL-TO-TOP BUTTON
   ------------------------------------------------------------------------- */
.to-top {
  position: fixed;
  right: 22px; bottom: 22px;
  width: 46px; height: 46px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--primary);
  color: #fff;
  border: none;
  box-shadow: var(--shadow), var(--glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
  z-index: 90;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { transform: translateY(-3px); }
.to-top svg { width: 20px; height: 20px; }

/* -------------------------------------------------------------------------
   14. ANIMATIONS & UTILITIES
   ------------------------------------------------------------------------- */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 640ms var(--ease), transform 640ms var(--ease);
  will-change: opacity, transform;
}
.fade-up.in { opacity: 1; transform: translateY(0); }

.cta-band {
  text-align: center;
  background:
    radial-gradient(600px 260px at 50% 0%, rgba(99,102,241,0.28), transparent 60%),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px 30px;
  max-width: 900px;
  margin: 0 auto;
}
.cta-band h2 { margin-bottom: 12px; }
.cta-band p { max-width: 520px; margin: 0 auto 26px; }

.divider { height: 1px; background: var(--border); border: none; margin: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* -------------------------------------------------------------------------
   15. RESPONSIVE
   ------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  :root { --section-pad: 80px; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-about { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  :root { --section-pad: 56px; }

  .nav-toggle { display: block; }

  /* Mobile full-screen overlay menu */
  .nav-links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    background: rgba(10,11,15,0.97);
    backdrop-filter: blur(10px);
    transform: translateX(100%);
    transition: transform 320ms var(--ease);
    padding: 20px;
    z-index: 110;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1.2rem; padding: 14px 22px; }
  .nav-cta { margin: 8px 0 0; }

  .controls { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .tool-card { padding: 18px; }
  .dropzone { padding: 40px 16px; }
  .tool-actions { flex-direction: column; align-items: stretch; }
  .tool-actions .right { width: 100%; }
  .tool-actions .right .btn { flex: 1; }

  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bar { flex-direction: column; text-align: center; }
}

@media (max-width: 400px) {
  .hero-cta .btn { width: 100%; }
  .format-card .tag { font-size: 1.1rem; }
}

/* -------------------------------------------------------------------------
   Reduced motion — disable non-essential animation
   ------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition-duration: 0.01ms !important; }
  .fade-up { opacity: 1; transform: none; }
}