:root {
  --bg: #0f172a;
  --panel: rgba(15, 23, 42, 0.72);
  --card: rgba(2, 6, 23, 0.55);
  --border: rgba(56, 189, 248, 0.28);
  --accent: #38bdf8;
  --accent-2: #0ea5e9;
  --text: #ffffff;
  --muted: #cbd5e1;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --transition: 0.2s cubic-bezier(.4, 0, .2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: "Space Grotesk", system-ui, sans-serif;
  background: radial-gradient(900px 420px at 50% 0%, rgba(56,189,248,0.25) 0%, rgba(15,23,42,0.95) 55%, var(--bg) 100%);
  color: var(--text);
  min-height: 100vh;
}

/* THEMED SCROLLBARS */
@supports selector(::-webkit-scrollbar) {
  ::-webkit-scrollbar { width: 12px; height: 12px; }
  ::-webkit-scrollbar-track { background: rgba(2, 6, 23, 0.55); }
  ::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, rgba(56,189,248,0.95), rgba(14,165,233,0.85));
    border-radius: 999px;
    border: 3px solid rgba(2, 6, 23, 0.55);
  }
  ::-webkit-scrollbar-thumb:hover { filter: brightness(1.06); }
}
* { scrollbar-color: rgba(56,189,248,0.85) rgba(2, 6, 23, 0.55); scrollbar-width: thin; }

h1, h2, h3 {
  font-family: "Bebas Neue", Impact, sans-serif;
  letter-spacing: 0.06em;
  line-height: 1.1;
}

a { color: inherit; }

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
}

.nav-logo {
  display: inline-flex;
  width: 30px;
  height: 30px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(56,189,248,0.9), rgba(14,165,233,0.8));
  color: #001018;
  font-weight: 900;
}

.nav-name { letter-spacing: 0.03em; }
.nav-tld { opacity: 0.7; }

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 7px 12px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  border: 1px solid transparent;
}

.nav-links a:hover {
  color: var(--text);
  border-color: rgba(56,189,248,0.35);
  background: rgba(56,189,248,0.08);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(56,189,248,0.45);
  padding: 6px 10px;
  border-radius: 10px;
  color: var(--text);
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero {
  position: relative;
  padding: 62px 34px 44px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(56,189,248,0.12), rgba(2,6,23,0.62));
  box-shadow: var(--shadow);
  overflow: hidden;
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -80px;
  background: repeating-linear-gradient(120deg, rgba(56,189,248,0.10) 0, rgba(56,189,248,0.10) 16px, transparent 16px, transparent 32px);
  opacity: 0.25;
}

.hero-content { position: relative; z-index: 1; }

.badge {
  display: inline-block;
  padding: 7px 16px;
  border: 1px solid rgba(56,189,248,0.55);
  border-radius: 999px;
  background: rgba(2,6,23,0.35);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero h1 {
  font-size: clamp(2.5rem, 5.4vw, 4.6rem);
  margin: 18px 0 12px;
}

.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.22rem);
  max-width: 820px;
  margin: 0 auto 22px;
  color: var(--muted);
}

.hero-btns { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

.btn-primary, .btn-secondary, button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid rgba(56,189,248,0.45);
  background: rgba(2,6,23,0.20);
  color: var(--text);
}

.btn-primary {
  background: linear-gradient(135deg, rgba(56,189,248,0.95), rgba(14,165,233,0.85));
  color: #041018;
  border-color: rgba(56,189,248,0.55);
}

.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.03); }
.btn-secondary:hover { transform: translateY(-2px); background: rgba(56,189,248,0.08); }

.panel {
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid rgba(56,189,248,0.30);
  background: rgba(2,6,23,0.35);
  box-shadow: 0 10px 28px rgba(0,0,0,0.35);
}

.panel-copy h2 { font-size: 2rem; }
.panel-hint { color: var(--muted); margin: 8px 0 14px; }

.dropzone {
  border: 1px dashed rgba(56,189,248,0.55);
  border-radius: 14px;
  padding: 26px;
  text-align: center;
  background: rgba(15,23,42,0.35);
  cursor: pointer;
  margin-bottom: 14px;
}

.dropzone.dragover { background: rgba(56,189,248,0.08); transform: scale(1.01); }
.dropzone {
  transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.dropzone:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(56,189,248,0.18);
  border-color: rgba(56,189,248,0.6);
}
.dropzone p { font-size: 1.05rem; font-weight: 700; }
.dropzone small { color: var(--muted); }

.tool-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 16px;
  align-items: start;
}

.controls {
  display: grid;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid rgba(56,189,248,0.22);
  background: rgba(15,23,42,0.35);
}

.controls h3 { font-size: 1.35rem; }

.btn-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.slider-row {
  display: grid;
  gap: 8px;
}

.slider-row label {
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 0.86rem;
}

.slider-row input[type="range"] { width: 100%; }

/*  RANGE SLIDERS  */
.slider-row input[type="range"],
.download-row input[type="range"] {
  width: 100%;
  --range-pct: 50%;
  --range-track: rgba(56,189,248,0.14);
  --range-fill: rgba(56,189,248,0.78);
  --range-thumb: linear-gradient(135deg, rgba(56,189,248,0.95), rgba(14,165,233,0.9));

  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  height: 30px;
  cursor: pointer;
}

.slider-row input[type="range"]:focus-visible,
.download-row input[type="range"]:focus-visible {
  outline: none;
}

.slider-row input[type="range"]::-webkit-slider-runnable-track,
.download-row input[type="range"]::-webkit-slider-runnable-track {
  height: 10px;
  border-radius: 999px;
  border: 1px solid rgba(56,189,248,0.28);
  background: linear-gradient(90deg, var(--range-fill) 0 var(--range-pct), var(--range-track) var(--range-pct) 100%);
  box-shadow: inset 0 0 0 1px rgba(2,6,23,0.35);
  transition: filter var(--transition), background var(--transition);
}

.slider-row input[type="range"]::-webkit-slider-thumb,
.download-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 18px;
  width: 18px;
  border-radius: 999px;
  margin-top: -5px;
  background: var(--range-thumb);
  border: 1px solid rgba(56,189,248,0.55);
  box-shadow: 0 10px 22px rgba(0,0,0,0.35);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.slider-row input[type="range"]:hover::-webkit-slider-thumb,
.download-row input[type="range"]:hover::-webkit-slider-thumb {
  filter: brightness(1.05);
}

.slider-row input[type="range"]:active::-webkit-slider-thumb,
.download-row input[type="range"]:active::-webkit-slider-thumb {
  transform: scale(1.08);
  box-shadow: 0 14px 28px rgba(0,0,0,0.42);
}

.slider-row input[type="range"]:focus-visible::-webkit-slider-thumb,
.download-row input[type="range"]:focus-visible::-webkit-slider-thumb {
  box-shadow: 0 0 0 4px rgba(56,189,248,0.25), 0 10px 22px rgba(0,0,0,0.35);
}

.slider-row input[type="range"]::-moz-range-track,
.download-row input[type="range"]::-moz-range-track {
  height: 10px;
  border-radius: 999px;
  border: 1px solid rgba(56,189,248,0.28);
  background: var(--range-track);
  box-shadow: inset 0 0 0 1px rgba(2,6,23,0.35);
}

.slider-row input[type="range"]::-moz-range-progress,
.download-row input[type="range"]::-moz-range-progress {
  height: 10px;
  border-radius: 999px;
  background: var(--range-fill);
}

.slider-row input[type="range"]::-moz-range-thumb,
.download-row input[type="range"]::-moz-range-thumb {
  height: 18px;
  width: 18px;
  border-radius: 999px;
  background: var(--range-thumb);
  border: 1px solid rgba(56,189,248,0.55);
  box-shadow: 0 10px 22px rgba(0,0,0,0.35);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.slider-row input[type="range"]:active::-moz-range-thumb,
.download-row input[type="range"]:active::-moz-range-thumb {
  transform: scale(1.08);
  box-shadow: 0 14px 28px rgba(0,0,0,0.42);
}

.mini {
  font-size: 0.9rem;
  color: var(--muted);
}

.preview {
  position: relative;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid rgba(56,189,248,0.22);
  background: rgba(15,23,42,0.35);
}

.canvas-wrap {
  position: relative;
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(56,189,248,0.25);
  background: rgba(2,6,23,0.35);
}

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

#overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.download-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}

.download-row select,
.download-row input[type="range"],
.download-row input[type="number"] {
  width: 100%;
}

.ad-slot {
  border: 1px dashed rgba(56,189,248,0.35);
  border-radius: var(--radius-sm);
  padding: 14px;
  color: var(--muted);
  text-align: center;
  background: rgba(2,6,23,0.25);
}

.section {
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: var(--radius);
  background: rgba(2,6,23,0.28);
  padding: 22px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: 16px;
  padding: 16px;
  background: rgba(15,23,42,0.35);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card h3 { font-size: 1.35rem; }
.card p { color: var(--muted); line-height: 1.65; }
.card a { text-decoration: none; font-weight: 800; }
.card a:hover { text-decoration: underline; }

/*  VISUAL POLISH  */
a {
  text-underline-offset: 0.18em;
  text-decoration-thickness: 2px;
}

@media (hover: hover) {
  .card,
  .panel,
  .controls,
  .preview,
  .ad-slot,
  .section {
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    will-change: transform;
  }

  .card:hover,
  .controls:hover,
  .preview:hover,
  .section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
  }
}

.btn-primary,
.btn-secondary {
  position: relative;
  overflow: hidden;
}
.btn-primary::before,
.btn-secondary::before {
  content: "";
  position: absolute;
  inset: -2px;
  background: linear-gradient(120deg, rgba(255,255,255,0.18), rgba(255,255,255,0) 40%, rgba(255,255,255,0.14));
  opacity: 0;
  transform: translateX(-18%);
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
}
.btn-primary:hover::before,
.btn-secondary:hover::before {
  opacity: 1;
  transform: translateX(0);
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}

.comparison-wrap {
  overflow: auto;
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: 16px;
  background: rgba(2,6,23,0.28);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.comparison-table th,
.comparison-table td {
  border-bottom: 1px solid rgba(56,189,248,0.12);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.comparison-table thead th {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  background: rgba(56,189,248,0.06);
}

.comparison-table .highlight {
  font-weight: 900;
  color: var(--text);
}

.bottom-cta {
  border: 1px solid rgba(56,189,248,0.32);
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(56,189,248,0.18), rgba(2,6,23,0.55));
  padding: 30px;
  text-align: center;
  box-shadow: var(--shadow);
}

.bottom-cta h2 { font-size: 2.3rem; }
.bottom-cta p { color: var(--muted); max-width: 920px; margin: 10px auto 14px; line-height: 1.7; }

.section-title { font-size: 2rem; text-align: center; }
.section-sub { text-align: center; color: var(--muted); margin: 8px 0 14px; }

.faq-grid { display: grid; gap: 10px; }
.faq-item { border: 1px solid rgba(56,189,248,0.25); border-radius: 14px; padding: 12px 14px; background: rgba(15,23,42,0.35); }
.faq-item summary { cursor: pointer; font-weight: 800; color: var(--text); list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { display: none; content: ""; }
.faq-item summary::after {
  content: "+";
  font-size: 1.2rem;
  font-weight: 900;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(56,189,248,0.10);
  border: 1px solid rgba(56,189,248,0.28);
  transition: transform var(--transition), background var(--transition);
}
.faq-item summary:hover { background: rgba(56,189,248,0.06); border-radius: 12px; }
.faq-item summary:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(56,189,248,0.18); border-radius: 12px; }
.faq-item[open] summary::after { transform: rotate(45deg); background: rgba(56,189,248,0.18); }
.faq-answer p { margin-top: 8px; color: var(--muted); line-height: 1.6; }
.faq-item[open] .faq-answer { animation: faqIn 0.22s ease both; }
@keyframes faqIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.footer {
  border-top: 1px solid rgba(56,189,248,0.28);
  background: rgba(2,6,23,0.52);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 22px 20px;
  display: grid;
  gap: 16px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.footer-col h4 {
  font-family: "Bebas Neue", Impact, sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.footer-col ul { list-style: none; display: grid; gap: 6px; }
.footer-col a { text-decoration: none; color: var(--muted); font-weight: 700; }
.footer-col a:hover { text-decoration: underline; color: var(--text); }

.footer-bottom {
  border-top: 1px solid rgba(56,189,248,0.18);
  padding-top: 12px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.notice {
  border: 1px solid rgba(56,189,248,0.35);
  background: rgba(56,189,248,0.06);
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
}

.error {
  border-color: rgba(248,113,113,0.45);
  background: rgba(248,113,113,0.06);
}

@media (max-width: 980px) {
  .tool-grid { grid-template-columns: 1fr; }
  .btn-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 740px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    right: 16px;
    top: 64px;
    background: rgba(2,6,23,0.92);
    border: 1px solid rgba(56,189,248,0.35);
    padding: 10px;
    border-radius: 12px;
    flex-direction: column;
    min-width: 200px;
  }
  .nav-links.open { display: flex; }
  .download-row { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
}