@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

:root {
  --bg: #0a0f1e;
  --bg2: #0f1628;
  --bg3: #141c35;
  --border: rgba(59,130,246,0.12);
  --border2: rgba(59,130,246,0.28);
  --p1: #3b82f6;
  --p2: #f97316;
  --p3: #06b6d4;
  --text: #e2e8f0;
  --muted: #475569;
  --soft: #94a3b8;
  --success: #10b981;
  --card-bg: rgba(15, 22, 40, 0.85);
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.6);
  --glow: 0 0 24px rgba(59,130,246,0.2);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Background grid */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}

/* Background radial glows */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 65% 40% at 10% 10%, rgba(59,130,246,0.09) 0%, transparent 60%),
    radial-gradient(ellipse 50% 35% at 90% 85%, rgba(249,115,22,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 80% 15%, rgba(6,182,212,0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ── HEADER ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,15,30,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--p1) 0%, var(--p3) 60%, var(--p2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  letter-spacing: -0.5px;
  line-height: 1;
}

.logo span {
  font-weight: 400;
  opacity: 0.7;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  color: var(--soft);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(59,130,246,0.1);
}

.nav-badge {
  background: linear-gradient(135deg, var(--p1), var(--p3));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.85rem;
  border-radius: 100px;
  text-decoration: none;
  letter-spacing: 0.3px;
  transition: opacity 0.2s;
}

.nav-badge:hover { opacity: 0.85; }

/* ── MAIN CONTENT ── */
main {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 2rem 2rem 4rem;
}

/* ── PAGE HERO ── */
.hero {
  text-align: center;
  padding: 3.5rem 1rem 2.5rem;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(59,130,246,0.1);
  border: 1px solid var(--border2);
  color: var(--p1);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.2rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hero h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 1rem;
  color: var(--text);
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--p1), var(--p3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  color: var(--soft);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── SECTION LABELS ── */
.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin: 2.5rem 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── TOOL CARDS GRID ── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.tool-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.6rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.tool-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.06) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.25s;
}

.tool-card:hover {
  border-color: var(--border2);
  transform: translateY(-3px);
  box-shadow: var(--shadow), var(--glow);
}

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

.tool-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.tool-card h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.tool-card p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.45;
}

/* Icon color variants */
.icon-blue { background: rgba(59,130,246,0.15); color: var(--p1); }
.icon-orange { background: rgba(249,115,22,0.15); color: var(--p2); }
.icon-cyan { background: rgba(6,182,212,0.15); color: var(--p3); }
.icon-green { background: rgba(16,185,129,0.15); color: var(--success); }
.icon-purple { background: rgba(139,92,246,0.15); color: #8b5cf6; }
.icon-pink { background: rgba(236,72,153,0.15); color: #ec4899; }

/* ── TOOL PAGE LAYOUT ── */
.tool-page-hero {
  padding: 2.5rem 0 2rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.tool-page-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.tool-page-hero h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
}

.tool-page-hero p {
  color: var(--soft);
  font-size: 0.95rem;
  margin-top: 0.3rem;
}

/* ── UPLOAD AREA ── */
.upload-zone {
  border: 2px dashed var(--border2);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s;
  background: rgba(59,130,246,0.03);
  position: relative;
}

.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--p1);
  background: rgba(59,130,246,0.07);
}

.upload-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.upload-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  display: block;
}

.upload-zone h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.upload-zone p {
  font-size: 0.85rem;
  color: var(--muted);
}

.upload-zone .browse-link {
  color: var(--p1);
  font-weight: 600;
}

/* ── TOOL WORKSPACE ── */
.workspace {
  display: none;
  gap: 1.5rem;
  flex-direction: column;
}

.workspace.active { display: flex; }

.preview-wrap {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.preview-panel {
  flex: 1;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  min-width: 0;
}

.preview-panel h4 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

.preview-panel canvas,
.preview-panel img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  display: block;
  max-height: 380px;
  object-fit: contain;
}

.controls-panel {
  width: 280px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.control-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.control-card h4 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
}

/* ── FORM ELEMENTS ── */
label.field-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--soft);
  margin-bottom: 0.4rem;
}

input[type="number"],
input[type="text"],
select {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 0.55rem 0.85rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
  border-color: var(--p1);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}

select option { background: var(--bg2); }

.field-row {
  display: flex;
  gap: 0.6rem;
  align-items: flex-end;
}

.field-row > * { flex: 1; }

/* Range slider */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--bg3);
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--p1);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(59,130,246,0.5);
  transition: transform 0.15s;
}

input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }

.slider-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.3rem;
}

.slider-value {
  color: var(--p1);
  font-weight: 600;
  min-width: 2.5rem;
  text-align: right;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.65rem 1.3rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--p1), var(--p3));
  color: #fff;
  box-shadow: 0 4px 16px rgba(59,130,246,0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(59,130,246,0.4);
}

.btn-secondary {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border2);
  color: var(--text);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--p1);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #059669);
  color: #fff;
  box-shadow: 0 4px 16px rgba(16,185,129,0.3);
}

.btn-success:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(16,185,129,0.4);
}

.btn-danger {
  background: rgba(239,68,68,0.15);
  border: 1px solid rgba(239,68,68,0.3);
  color: #ef4444;
}

.btn-danger:hover { background: rgba(239,68,68,0.25); }

.btn-full { width: 100%; }
.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.82rem; }
.btn-lg { padding: 0.85rem 1.8rem; font-size: 1rem; }

/* ── FILE INFO ── */
.file-info-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  flex-wrap: wrap;
}

.file-info-bar .filename {
  font-weight: 600;
  font-size: 0.88rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
}

.file-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.file-meta span { display: flex; align-items: center; gap: 0.3rem; }

/* ── BUTTON GROUP ── */
.btn-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ── STATS / BADGE CHIPS ── */
.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(16,185,129,0.12);
  border: 1px solid rgba(16,185,129,0.25);
  color: var(--success);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
}

.stat-chip.blue {
  background: rgba(59,130,246,0.12);
  border-color: rgba(59,130,246,0.25);
  color: var(--p1);
}

/* ── FOOTER ── */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 2rem;
  margin-top: 4rem;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--p1), var(--p3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.footer-links {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.83rem;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  transition: color 0.2s;
}

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

.footer-copy {
  color: var(--muted);
  font-size: 0.78rem;
}

/* ── TOAST NOTIFICATION ── */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  display: none;
  align-items: center;
  gap: 0.5rem;
  backdrop-filter: blur(12px);
  animation: slideIn 0.3s ease;
}

.toast.show { display: flex; }
.toast.success { border-color: rgba(16,185,129,0.4); color: var(--success); }
.toast.error { border-color: rgba(239,68,68,0.4); color: #ef4444; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── BACK LINK ── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.4rem 0;
  transition: color 0.2s;
}

.back-link:hover { color: var(--p1); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  header { padding: 0.85rem 1rem; }
  main { padding: 1.5rem 1rem 3rem; }
  .nav-links { display: none; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .preview-wrap { flex-direction: column; }
  .controls-panel { width: 100%; }
  .hero { padding: 2rem 0 1.5rem; }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 420px) {
  .tools-grid { grid-template-columns: 1fr; }
}

/* ── DIVIDER ── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 1rem 0;
}

/* ── CHECKBOX / TOGGLE ── */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--soft);
  cursor: pointer;
}

.toggle {
  width: 36px;
  height: 20px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 100px;
  position: relative;
  cursor: pointer;
  transition: background 0.2s;
  flex-shrink: 0;
}

.toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--muted);
  border-radius: 50%;
  transition: all 0.2s;
}

.toggle.on { background: rgba(59,130,246,0.3); border-color: var(--p1); }
.toggle.on::after { left: 18px; background: var(--p1); }

/* ── COLOR PICKER ── */
input[type="color"] {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
  padding: 2px;
}

/* ── TABS ── */
.tabs {
  display: flex;
  gap: 0.3rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.25rem;
}

.tab-btn {
  flex: 1;
  padding: 0.45rem 0.75rem;
  border-radius: 6px;
  background: none;
  border: none;
  color: var(--muted);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background: var(--p1);
  color: #fff;
}

/* ── FIELD SPACING ── */
.field + .field { margin-top: 0.85rem; }

/* ── CANVAS CONTAINER ── */
.canvas-wrap {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: repeating-conic-gradient(rgba(255,255,255,0.04) 0% 25%, transparent 0% 50%) 0 0 / 16px 16px;
}

.canvas-wrap canvas { display: block; width: 100%; height: auto; }