/* ===========================
   ImgTool Pro – 3D Style
   Light Blue + Yellow Theme
=========================== */

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

:root {
  --blue-1: #E0F7FA;
  --blue-2: #B2EBF2;
  --blue-3: #4FC3F7;
  --blue-4: #0288D1;
  --blue-5: #01579B;
  --yellow-1: #FFFDE7;
  --yellow-2: #FFF176;
  --yellow-3: #FFD700;
  --yellow-4: #FFC107;
  --yellow-5: #F57F17;
  --white: #FFFFFF;
  --dark: #0A1628;
  --text: #1A2B4A;
  --text-sub: #5A7A9A;
  --card-bg: rgba(255,255,255,0.82);
  --card-border: rgba(79,195,247,0.25);
  --shadow-blue: 0 20px 60px rgba(2,136,209,0.18);
  --shadow-yellow: 0 8px 24px rgba(255,193,7,0.28);
  --radius: 24px;
  --radius-sm: 12px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: linear-gradient(160deg, #E8F6FD 0%, #FFF9E6 50%, #E0F4FF 100%);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Background Scene ── */
.bg-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  animation: float 8s ease-in-out infinite;
}

.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(79,195,247,0.22) 0%, transparent 70%);
  top: -100px; left: -100px;
  animation-delay: 0s;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,215,0,0.20) 0%, transparent 70%);
  top: 30%; right: -80px;
  animation-delay: -3s;
}
.orb-3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(2,136,209,0.15) 0%, transparent 70%);
  bottom: 10%; left: 10%;
  animation-delay: -5s;
}
.orb-4 {
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(255,193,7,0.18) 0%, transparent 70%);
  bottom: 20%; right: 20%;
  animation-delay: -2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) scale(1); }
  33% { transform: translateY(-30px) scale(1.04); }
  66% { transform: translateY(20px) scale(0.97); }
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79,195,247,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,195,247,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(255,255,255,0.75);
  border-bottom: 1px solid rgba(79,195,247,0.2);
  box-shadow: 0 2px 20px rgba(2,136,209,0.08);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--blue-5);
  text-decoration: none;
}

.logo-icon {
  display: flex;
  animation: rotateIcon 6s linear infinite;
}

@keyframes rotateIcon {
  0%, 90% { transform: rotate(0deg); }
  95% { transform: rotate(15deg); }
  100% { transform: rotate(0deg); }
}

.logo-pro {
  color: var(--yellow-5);
  margin-left: 1px;
}

.nav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}

.nav-links a {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--blue-4); }

.nav-badge {
  background: linear-gradient(135deg, var(--yellow-3), var(--yellow-5));
  color: var(--dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  white-space: nowrap;
  box-shadow: var(--shadow-yellow);
}

/* ── Hero ── */
.hero {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 100px 24px 60px;
}

.hero-tag {
  display: inline-block;
  background: rgba(79,195,247,0.15);
  border: 1px solid rgba(79,195,247,0.4);
  color: var(--blue-4);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 6px 18px;
  border-radius: 20px;
  margin-bottom: 28px;
  animation: fadeDown 0.6s ease both;
}

.hero-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--text);
  margin-bottom: 20px;
  animation: fadeDown 0.7s 0.1s ease both;
}

.gradient-text {
  background: linear-gradient(135deg, var(--blue-3) 0%, var(--blue-4) 40%, var(--yellow-3) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-sub);
  max-width: 500px;
  margin: 0 auto 36px;
  line-height: 1.65;
  animation: fadeDown 0.7s 0.2s ease both;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--blue-3), var(--blue-4));
  color: white;
  text-decoration: none;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  padding: 16px 36px;
  border-radius: 50px;
  box-shadow: 0 8px 30px rgba(2,136,209,0.35), 0 0 0 0 rgba(79,195,247,0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  animation: fadeDown 0.7s 0.3s ease both, pulse 3s 1s ease-in-out infinite;
}

.cta-btn:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 16px 40px rgba(2,136,209,0.4), 0 0 0 6px rgba(79,195,247,0.15);
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 8px 30px rgba(2,136,209,0.35), 0 0 0 0 rgba(79,195,247,0.3); }
  50% { box-shadow: 0 8px 30px rgba(2,136,209,0.35), 0 0 0 10px rgba(79,195,247,0); }
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  margin-top: 50px;
  animation: fadeDown 0.7s 0.4s ease both;
}

.stat { display: flex; flex-direction: column; }
.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--blue-4);
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-sub);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.stat-div {
  width: 1px;
  height: 40px;
  background: rgba(2,136,209,0.2);
}

/* ── Converter Card ── */
.converter-section {
  position: relative;
  z-index: 1;
  padding: 20px 24px 80px;
  display: flex;
  justify-content: center;
}

.converter-card {
  position: relative;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: 32px;
  padding: 40px;
  width: 100%;
  max-width: 680px;
  box-shadow:
    var(--shadow-blue),
    0 1px 0 rgba(255,255,255,0.9) inset,
    0 -1px 0 rgba(79,195,247,0.1) inset;
  transform: perspective(1000px) rotateX(1deg);
  transition: transform 0.3s ease;
  animation: riseUp 0.8s 0.2s ease both;
}

.converter-card:hover {
  transform: perspective(1000px) rotateX(0deg) translateY(-4px);
  box-shadow: 0 30px 80px rgba(2,136,209,0.22), 0 1px 0 rgba(255,255,255,0.9) inset;
}

.card-glow {
  position: absolute;
  top: -1px; left: -1px; right: -1px;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-3), var(--yellow-3), var(--blue-3));
  border-radius: 32px 32px 0 0;
  background-size: 200% 100%;
  animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Drop Zone ── */
.drop-zone {
  border: 2px dashed rgba(79,195,247,0.45);
  border-radius: 20px;
  padding: 48px 24px 36px;
  text-align: center;
  background: linear-gradient(135deg, rgba(224,247,250,0.4), rgba(255,253,231,0.3));
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--blue-3);
  background: linear-gradient(135deg, rgba(79,195,247,0.08), rgba(255,215,0,0.05));
  transform: scale(1.01);
}

.drop-icon {
  position: relative;
  display: inline-flex;
  margin-bottom: 20px;
}

.drop-icon-inner {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, rgba(79,195,247,0.15), rgba(255,215,0,0.1));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(79,195,247,0.3);
  position: relative;
  z-index: 1;
  animation: levitate 3s ease-in-out infinite;
}

@keyframes levitate {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.drop-rings {
  position: absolute;
  inset: -5px;
  pointer-events: none;
}

.ring {
  position: absolute;
  inset: 0;
  border-radius: 24px;
  border: 1.5px solid rgba(79,195,247,0.3);
  animation: expandRing 2.5s ease-out infinite;
}

.ring-1 { animation-delay: 0s; }
.ring-2 { animation-delay: 0.8s; }
.ring-3 { animation-delay: 1.6s; }

@keyframes expandRing {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(2); opacity: 0; }
}

.drop-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.drop-sub {
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-bottom: 10px;
}

.browse-link {
  color: var(--blue-4);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: rgba(2,136,209,0.3);
}

.drop-hint {
  font-size: 0.77rem;
  color: #90AABB;
  letter-spacing: 0.02em;
}

/* ── File Preview ── */
.file-preview {
  border-radius: 16px;
  overflow: hidden;
  background: rgba(224,247,250,0.4);
  border: 1px solid rgba(79,195,247,0.2);
  margin-bottom: 4px;
}

.preview-img-wrap {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.preview-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
}

.preview-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}

.preview-img-wrap:hover .preview-overlay { opacity: 1; }

.change-btn {
  background: rgba(255,255,255,0.9);
  color: var(--blue-4);
  border: none;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9rem;
}

.file-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  gap: 10px;
}

.file-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.file-size {
  font-size: 0.82rem;
  color: var(--text-sub);
  background: rgba(79,195,247,0.12);
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
}

.delete-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(239,83,80,0.1);
  border: 1.5px solid rgba(239,83,80,0.3);
  color: #E53935;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.delete-btn:hover {
  background: #E53935;
  border-color: #E53935;
  color: white;
  transform: scale(1.05);
}

/* ── Controls ── */
.controls {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 28px;
}

.control-group { display: flex; flex-direction: column; gap: 10px; }

.ctrl-label {
  font-family: 'Syne', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.ctrl-optional {
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  text-transform: none;
  color: var(--text-sub);
  font-size: 0.8rem;
}

/* Format Grid */
.format-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.fmt-btn {
  background: rgba(255,255,255,0.7);
  border: 1.5px solid rgba(79,195,247,0.25);
  color: var(--text-sub);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 8px 16px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.18s ease;
  letter-spacing: 0.04em;
}

.fmt-btn:hover {
  border-color: var(--blue-3);
  color: var(--blue-4);
  background: rgba(79,195,247,0.08);
  transform: translateY(-2px);
}

.fmt-btn.active {
  background: linear-gradient(135deg, var(--blue-3), var(--blue-4));
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 16px rgba(2,136,209,0.3);
  transform: translateY(-2px);
}

/* Dimensions */
.dim-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dim-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.8);
  border: 1.5px solid rgba(79,195,247,0.25);
  border-radius: 12px;
  padding: 10px 14px;
  transition: border-color 0.2s;
}

.dim-input-wrap:focus-within {
  border-color: var(--blue-3);
  box-shadow: 0 0 0 3px rgba(79,195,247,0.12);
}

.dim-label {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 0.75rem;
  color: var(--blue-3);
  letter-spacing: 0.06em;
}

.dim-input-wrap input {
  flex: 1;
  border: none;
  background: none;
  outline: none;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  min-width: 0;
}

.dim-input-wrap input::placeholder { color: #B0C4D4; }

.dim-unit {
  font-size: 0.75rem;
  color: var(--text-sub);
  font-weight: 500;
}

.dim-link { display: flex; justify-content: center; }

.link-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1.5px solid rgba(79,195,247,0.35);
  background: white;
  color: var(--text-sub);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.link-btn:hover, .link-btn.linked {
  border-color: var(--blue-3);
  color: var(--blue-4);
  background: rgba(79,195,247,0.08);
}

.link-btn.linked {
  background: var(--blue-3);
  color: white;
  border-color: var(--blue-3);
}

/* Presets */
.preset-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.preset-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-sub);
  margin-right: 2px;
}

.preset-btn {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--yellow-5);
  background: rgba(255,193,7,0.1);
  border: 1.5px solid rgba(255,193,7,0.35);
  border-radius: 8px;
  padding: 4px 10px;
  cursor: pointer;
  transition: all 0.18s;
}

.preset-btn:hover {
  background: var(--yellow-3);
  border-color: var(--yellow-4);
  color: var(--dark);
  transform: translateY(-1px);
}

/* Quality Slider */
.quality-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(to right, var(--blue-3) 0%, var(--blue-3) 90%, rgba(79,195,247,0.2) 90%);
  outline: none;
  cursor: pointer;
}

.quality-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: white;
  border: 3px solid var(--blue-3);
  box-shadow: 0 2px 10px rgba(2,136,209,0.25);
  cursor: pointer;
  transition: transform 0.15s;
}

.quality-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* ── Convert Button ── */
.convert-btn {
  margin-top: 28px;
  width: 100%;
  padding: 18px;
  border: none;
  border-radius: 16px;
  font-family: 'Syne', sans-serif;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  cursor: pointer;
  background: linear-gradient(135deg, #FFD700 0%, #FFC107 50%, #FF8F00 100%);
  color: var(--dark);
  box-shadow: 0 8px 30px rgba(255,193,7,0.4), 0 2px 0 rgba(255,255,255,0.5) inset;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.convert-btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.4s;
}

.convert-btn:hover::before { left: 100%; }

.convert-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(255,193,7,0.5), 0 2px 0 rgba(255,255,255,0.5) inset;
}

.convert-btn:active { transform: translateY(0); }

.convert-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-text, .btn-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.spinner {
  width: 18px; height: 18px;
  border: 2.5px solid rgba(10,22,40,0.3);
  border-top-color: var(--dark);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Status Bar ── */
.status-bar {
  margin-top: 14px;
  border-radius: 12px;
  overflow: hidden;
}

.status-inner {
  padding: 12px 18px;
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: 12px;
}

.status-success {
  background: rgba(129,199,132,0.15);
  border: 1px solid rgba(129,199,132,0.4);
  color: #2E7D32;
}

.status-error {
  background: rgba(239,154,154,0.15);
  border: 1px solid rgba(239,154,154,0.4);
  color: #C62828;
}

/* ── Steps ── */
.steps-section {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 60px 24px 80px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-4);
  background: rgba(79,195,247,0.12);
  border: 1px solid rgba(79,195,247,0.25);
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
  margin-bottom: 48px;
}

.section-title.left { text-align: left; }

.steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.step-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 36px 28px;
  flex: 1;
  min-width: 200px;
  max-width: 260px;
  text-align: center;
  box-shadow: var(--shadow-blue);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.step-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-3), var(--yellow-3));
}

.step-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 24px 60px rgba(2,136,209,0.2);
}

.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: rgba(79,195,247,0.15);
  line-height: 1;
  margin-bottom: 4px;
}

.step-icon { font-size: 2rem; margin-bottom: 12px; }

.step-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.step-card p {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.6;
}

.step-arrow {
  font-size: 1.8rem;
  color: rgba(79,195,247,0.4);
  font-weight: 300;
  flex-shrink: 0;
}

/* ── Formats ── */
.formats-section {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 60px 24px 80px;
  background: rgba(255,255,255,0.35);
  backdrop-filter: blur(10px);
}

.formats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.fmt-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 28px 16px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: default;
}

.fmt-card:hover {
  transform: translateY(-6px) rotate(-1deg);
  box-shadow: 0 16px 40px rgba(2,136,209,0.18);
}

.fmt-card.featured {
  border-color: rgba(255,215,0,0.5);
  background: linear-gradient(135deg, rgba(255,253,231,0.8), rgba(255,255,255,0.8));
}

.fmt-icon { font-size: 1.8rem; margin-bottom: 10px; display: block; }

.fmt-card strong {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.fmt-card p { font-size: 0.78rem; color: var(--text-sub); line-height: 1.5; }

/* ── Features ── */
.features-section {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
}

.features-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 60px;
  flex-wrap: wrap;
}

.feat-text { flex: 1; min-width: 280px; }

.feat-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feat-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.5;
}

.feat-check {
  flex-shrink: 0;
  width: 22px; height: 22px;
  background: linear-gradient(135deg, var(--blue-3), var(--blue-4));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  margin-top: 1px;
}

.feat-visual {
  flex: 1;
  min-width: 260px;
  position: relative;
  height: 280px;
}

.visual-card {
  position: absolute;
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text);
  box-shadow: var(--shadow-blue);
  border: 1px solid var(--card-border);
  width: 220px;
}

.vc-badge {
  background: linear-gradient(135deg, var(--yellow-3), var(--yellow-4));
  color: var(--dark);
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 20px;
}

.vc-1 { top: 0; left: 0; animation: vcFloat 4s ease-in-out infinite; }
.vc-2 { top: 90px; right: 0; animation: vcFloat 4s 1.3s ease-in-out infinite; }
.vc-3 { bottom: 0; left: 30px; animation: vcFloat 4s 2.6s ease-in-out infinite; }

@keyframes vcFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

.footer {
    background-color: #164d83; /* Dark background */
    color: #a0a0a0;
    padding: 60px 5%;
    font-family: 'Segoe UI', sans-serif;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand { max-width: 400px; }
.logo-box { display: flex; align-items: center; gap: 10px; color: #fff; margin-bottom: 15px; }

.footer-links h3, .footer-social h3 { color: #fff; margin-bottom: 20px; border-bottom: 2px solid #00c853; display: inline-block; padding-bottom: 5px;}

.footer-links ul { list-style: none; padding: 0; }
.footer-links a { color: #a0a0a0; text-decoration: none; display: block; margin-bottom: 10px; }

.social-icons { display: flex; gap: 15px; }
.social-icons a { 
    background: #1a1e22; color: #fff; padding: 12px; border-radius: 8px; 
    text-decoration: none; width: 45px; height: 45px; display: flex; align-items: center; justify-content: center;
}

.footer-bottom {
    border-top: 1px solid #1a1e22;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}
/* ── Animations ── */
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes riseUp {
  from { opacity: 0; transform: perspective(1000px) rotateX(4deg) translateY(40px); }
  to { opacity: 1; transform: perspective(1000px) rotateX(1deg) translateY(0); }
}

/* ── Mobile Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-badge { font-size: 0.7rem; padding: 3px 10px; }

  .hero { padding: 60px 20px 40px; }
  .hero-stats { gap: 16px; }
  .stat-num { font-size: 1.6rem; }

  .converter-card { padding: 24px 20px; border-radius: 24px; }
  .drop-zone { padding: 36px 16px 28px; }
  
  .drop-icon-inner { width: 64px; height: 64px; }

  .steps-grid { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); }
  .step-card { max-width: 100%; width: 100%; }

  .features-inner { flex-direction: column; gap: 40px; }
  .feat-visual { width: 100%; min-height: 260px; }
  .vc-1 { left: 0; }
  .vc-2 { right: 0; }
  .vc-3 { left: 10px; }

  .formats-grid { grid-template-columns: repeat(2, 1fr); }
  .format-grid { gap: 6px; }
  .fmt-btn { padding: 7px 12px; font-size: 0.78rem; }

  .preset-row { gap: 5px; }
  .preset-btn { font-size: 0.72rem; padding: 4px 8px; }

  .dim-row { gap: 6px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.4rem; }
  .formats-grid { grid-template-columns: repeat(2, 1fr); }
  .visual-card { width: 190px; font-size: 0.82rem; }
}