/* ── Variables ─────────────────────────────────────────── */
:root {
  --bg:        #0a0e14;
  --bg2:       #111820;
  --card-bg:   #141c26;
  --border:    #1e2d3d;
  --accent:    #00c4a7;
  --accent2:   #0080ff;
  --text:      #e2eaf4;
  --muted:     #5a7a9a;
  --error-bg:  #1a1215;
  --error:     #ff4d6a;
  --success:   #00c4a7;
  --font:      'Sora', sans-serif;
  --mono:      'JetBrains Mono', monospace;
  --radius:    12px;
  --shadow:    0 8px 40px rgba(0,0,0,0.5);
}

/* ── Reset & Base ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  overflow-x: hidden;
}

/* ── Background grid ────────────────────────────────────── */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,196,167,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,196,167,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ── Header ─────────────────────────────────────────────── */
.header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.logo-area { margin-bottom: 4px; }

.logo-placeholder {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg2);
}

.logo-icon {
  font-size: 20px;
  color: var(--accent);
}

.logo-text {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 4px;
  color: var(--text);
}

.title {
  font-size: clamp(1.4rem, 5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text) 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 0.875rem;
  color: var(--muted);
  font-weight: 300;
}

/* ── Card ───────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ── Search Group ───────────────────────────────────────── */
.search-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.input-wrapper {
  display: flex;
  align-items: center;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.2s;
}

.input-wrapper:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,196,167,0.12);
}

.input-prefix {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
  padding: 0 14px;
  border-right: 1px solid var(--border);
  background: rgba(0,196,167,0.06);
  height: 52px;
  display: flex;
  align-items: center;
  letter-spacing: 1px;
  user-select: none;
}

input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 0 16px;
  height: 52px;
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 1px;
}

input::placeholder {
  color: var(--muted);
  font-weight: 300;
  letter-spacing: 0;
}

/* ── Search Button ──────────────────────────────────────── */
#search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 24px;
  background: var(--accent);
  color: #0a0e14;
  border: none;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.01em;
}

#search-btn:hover {
  background: #00ddbf;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0,196,167,0.35);
}

#search-btn:active { transform: translateY(0); }

#search-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-icon { font-size: 1.1rem; transition: transform 0.2s; }
#search-btn:hover .btn-icon { transform: translateX(3px); }

/* ── Result Area ────────────────────────────────────────── */
.result-area {
  display: flex;
  flex-direction: column;
  animation: fadeSlideIn 0.3s ease;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hidden { display: none !important; }

/* ── Success Result ─────────────────────────────────────── */
.result-success {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  background: rgba(0,196,167,0.05);
  border: 1px solid rgba(0,196,167,0.2);
  border-radius: 8px;
}

.result-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  font-weight: 600;
}

.result-url {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text);
  word-break: break-all;
  line-height: 1.6;
  text-decoration: none;
  border-bottom: 1px dashed rgba(0,196,167,0.3);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.result-url:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Copy Button ────────────────────────────────────────── */
.copy-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 11px 16px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  justify-content: center;
}

.copy-btn:hover {
  border-color: var(--accent2);
  color: var(--accent2);
  background: rgba(0,128,255,0.06);
}

.copy-icon { font-size: 1rem; }

/* ── Copy Success ───────────────────────────────────────── */
.copy-success {
  text-align: center;
  font-size: 0.82rem;
  color: var(--success);
  font-weight: 500;
  letter-spacing: 0.3px;
  animation: fadeSlideIn 0.25s ease;
}

/* ── Error Result ───────────────────────────────────────── */
.result-error {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  background: rgba(255,77,106,0.06);
  border: 1px solid rgba(255,77,106,0.2);
  border-radius: 8px;
  color: var(--error);
  font-size: 0.9rem;
}

.error-icon { font-size: 1.2rem; flex-shrink: 0; }

/* ── Footer ─────────────────────────────────────────────── */
.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
}

/* ── Screen reader only ─────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ── Mobile refinements ─────────────────────────────────── */
@media (max-width: 400px) {
  .card { padding: 20px 16px; }
  input { font-size: 0.9rem; }
}