/* ============================================================
   MyDevSuite — Design System
   Direction: Precise Industrial / Developer-first
   Dark-first, single accent, intentional typography
   ============================================================ */

/* ── Variables ── */
:root {
  --bg:            #080808;
  --bg-1:          #111111;
  --bg-2:          #181818;
  --bg-3:          #222222;
  --border:        rgba(255,255,255,0.07);
  --border-2:      rgba(255,255,255,0.13);
  --text:          #EFEFEF;
  --text-2:        #888888;
  --text-3:        #444444;
  --accent:        #6366F1;
  --accent-2:      #818CF8;
  --accent-bg:     rgba(99,102,241,0.10);
  --accent-border: rgba(99,102,241,0.45);
  --success:       #10B981;
  --error:         #EF4444;
  --warning:       #F59E0B;
  --success-bg:    rgba(16,185,129,0.10);
  --error-bg:      rgba(239,68,68,0.10);
  --warning-bg:    rgba(245,158,11,0.10);

  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.5);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.6);

  --font-sans:    'Inter', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --header-h: 56px;
  --t: 0.15s ease;
}

[data-theme="light"] {
  --bg:            #F4F4F5;
  --bg-1:          #FFFFFF;
  --bg-2:          #EDEDEE;
  --bg-3:          #E4E4E6;
  --border:        rgba(0,0,0,0.07);
  --border-2:      rgba(0,0,0,0.13);
  --text:          #0D0D0D;
  --text-2:        #6B6B6B;
  --text-3:        #ABABAB;
  --accent:        #4F46E5;
  --accent-2:      #6366F1;
  --accent-bg:     rgba(79,70,229,0.07);
  --accent-border: rgba(79,70,229,0.40);
  --shadow-sm:     0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:     0 6px 24px rgba(0,0,0,0.10);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background: var(--bg);
  /* Prevent theme flash */
  transition: background var(--t), color var(--t);
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

main { flex: 1; }

/* ── Container ── */
.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ── */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(8,8,8,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

[data-theme="light"] #site-header {
  background: rgba(244,244,245,0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.site-logo:hover { color: var(--text); text-decoration: none; }

.logo-mark {
  width: 30px;
  height: 30px;
  background: var(--accent);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}
.logo-mark .material-icons-round { font-size: 16px; }

.header-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav {
  display: flex;
  align-items: center;
  margin-right: 8px;
}
.site-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--t), background var(--t);
}
.site-nav a:hover { color: var(--text); background: var(--bg-2); text-decoration: none; }

.theme-toggle {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--t), color var(--t), border-color var(--t);
}
.theme-toggle:hover { background: var(--bg-2); color: var(--text); border-color: var(--border-2); }
.theme-toggle .material-icons-round { font-size: 18px; }

/* ── Footer ── */
#site-footer {
  border-top: 1px solid var(--border);
  margin-top: 80px;
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.footer-copy { font-size: 0.8rem; color: var(--text-3); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.8rem; color: var(--text-2); transition: color var(--t); }
.footer-links a:hover { color: var(--text); text-decoration: none; }

/* ── Homepage Hero ── */
.hero {
  position: relative;
  padding: 80px 0 60px;
  text-align: center;
  overflow: hidden;
}

/* Dot grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, var(--border-2) 1px, transparent 0);
  background-size: 28px 28px;
  pointer-events: none;
}

/* Top glow */
.hero::after {
  content: '';
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(99,102,241,0.12) 0%, transparent 65%);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  color: var(--accent-2);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 28px;
  text-transform: uppercase;
}
.hero-badge .material-icons-round { font-size: 13px; }

.hero-h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 20px;
}

.hero-h1 em {
  font-style: normal;
  color: var(--accent-2);
}

.hero-sub {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 480px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 0;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 28px;
  font-size: 0.75rem;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.hero-stat span {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  display: block;
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

/* ── Search ── */
.tools-search {
  padding: 40px 0 0;
}

.search-field {
  position: relative;
  max-width: 560px;
  margin: 0 auto;
}

.search-field .material-icons-round {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  font-size: 20px;
  pointer-events: none;
}

#tool-search {
  width: 100%;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px 12px 44px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
}
#tool-search::placeholder { color: var(--text-3); }
#tool-search:focus {
  border-color: var(--accent-border);
  box-shadow: 0 0 0 3px var(--accent-bg);
}

/* ── Category Sections ── */
.category-section {
  padding: 48px 0 0;
}

.category-heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.category-heading::before {
  content: '//';
  color: var(--accent);
  font-weight: 700;
}
.category-heading::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
  margin-left: 8px;
}

/* ── Tool Cards ── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.tool-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-left: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  transition: border-left-color var(--t), background var(--t), transform var(--t), box-shadow var(--t);
  position: relative;
}
.tool-card:hover {
  border-left-color: var(--accent);
  background: var(--bg-2);
  transform: translateX(3px);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
}

.tool-card-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-2);
  flex-shrink: 0;
}
.tool-card-icon .material-icons-round { font-size: 18px; }

.tool-card-body { flex: 1; }

.tool-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.tool-card-desc {
  font-size: 0.8rem;
  color: var(--text-2);
  line-height: 1.5;
}

.tool-card-arrow {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  opacity: 0;
  transition: opacity var(--t), color var(--t);
}
.tool-card-arrow .material-icons-round { font-size: 18px; }
.tool-card:hover .tool-card-arrow {
  opacity: 1;
  color: var(--accent-2);
}

/* Category badge (kept for tool pages related section) */
.tool-card-badge {
  display: none; /* hidden in new design, arrow replaces it */
}

/* ── No results ── */
.no-results {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-3);
  font-size: 0.9rem;
  display: none;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: transform var(--t), box-shadow var(--t), background var(--t), color var(--t);
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); box-shadow: none; }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-2); }

.btn-secondary {
  background: var(--bg-2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-3); border-color: var(--border-2); }

.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-group { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

/* ── Inputs ── */
input[type="text"],
input[type="number"],
input[type="datetime-local"],
select,
textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 13px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
}
input[type="text"]:focus,
input[type="number"]:focus,
input[type="datetime-local"]:focus,
select:focus,
textarea:focus {
  border-color: var(--accent-border);
  box-shadow: 0 0 0 3px var(--accent-bg);
}
textarea {
  font-family: var(--font-mono);
  font-size: 0.825rem;
  resize: vertical;
  min-height: 160px;
}
input::placeholder, textarea::placeholder { color: var(--text-3); }

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* ── Ad Slots ── */
.ad-slot {
  background: var(--bg-1);
  border: 1px dashed var(--border-2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.ad-slot::before {
  content: 'Advertisement';
  font-size: 0.65rem;
  color: var(--text-3);
  position: absolute;
  top: 6px;
  left: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.ad-slot--top  { width: 100%; min-height: 88px; margin: 24px 0; }
.ad-slot--sidebar { width: 100%; min-height: 250px; margin: 24px 0; }

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-3);
  padding: 20px 0 0;
  font-family: var(--font-mono);
}
.breadcrumb a { color: var(--text-2); transition: color var(--t); }
.breadcrumb a:hover { color: var(--accent-2); text-decoration: none; }
.breadcrumb span { color: var(--text-3); }

/* ── Tool Hero ── */
.tool-hero { padding: 32px 0 20px; }
.tool-hero h1 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 8px;
}
.tool-hero p { font-size: 0.9rem; color: var(--text-2); max-width: 560px; }

/* ── Tool Interface ── */
.tool-interface {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
}

.split-pane {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.pane-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 8px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
}

/* ── Status Messages ── */
.status-msg {
  font-size: 0.825rem;
  padding: 9px 13px;
  border-radius: var(--radius-sm);
  margin-top: 10px;
  border: 1px solid transparent;
}
.status-msg.error   { background: var(--error-bg);   color: var(--error);   border-color: rgba(239,68,68,0.25); }
.status-msg.success { background: var(--success-bg); color: var(--success); border-color: rgba(16,185,129,0.25); }
.status-msg.warning { background: var(--warning-bg); color: var(--warning); border-color: rgba(245,158,11,0.25); }
.status-msg.hidden  { display: none; }

/* ── Related Tools ── */
.related-tools { padding: 40px 0 0; }
.related-tools h2 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 14px;
  font-family: var(--font-mono);
}

/* ── Code Output ── */
.code-output {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 80px;
  overflow-x: auto;
  color: var(--text);
  line-height: 1.6;
}

/* ── UUID ── */
.uuid-list { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.uuid-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 13px;
  font-family: var(--font-mono);
  font-size: 0.825rem;
}
.uuid-item span { flex: 1; word-break: break-all; color: var(--text-2); }

/* ── JWT ── */
.jwt-section { margin-bottom: 20px; }
.jwt-section-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 8px;
}

/* ── Timestamp ── */
.ts-section {
  background: var(--bg-2);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}
.ts-section h3 { font-size: 0.9rem; font-weight: 600; margin-bottom: 14px; color: var(--text); }
.ts-live {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--accent-2);
  text-align: center;
  padding: 16px;
  letter-spacing: -0.03em;
}
.ts-result-grid { display: grid; gap: 8px; margin-top: 12px; }
.ts-result-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 13px;
}
.ts-result-label { font-size: 0.75rem; font-weight: 600; color: var(--text-3); min-width: 90px; font-family: var(--font-mono); }
.ts-result-value { font-family: var(--font-mono); font-size: 0.825rem; flex: 1; color: var(--text); }

/* ── Color Converter ── */
.color-swatch {
  width: 100%;
  height: 110px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  margin-bottom: 14px;
  transition: background 0.2s;
}
.color-values-grid { display: grid; gap: 8px; }
.color-value-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 13px;
}
.color-value-label { font-size: 0.75rem; font-weight: 600; color: var(--text-3); min-width: 44px; font-family: var(--font-mono); }
.color-value-text  { font-family: var(--font-mono); font-size: 0.825rem; flex: 1; color: var(--text); }

/* ── Cron ── */
.cron-fields { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-bottom: 20px; }
.cron-output-box {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  margin-bottom: 16px;
}
.cron-expression {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-2);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.cron-description { font-size: 0.875rem; color: var(--text-2); }
.cron-examples table { width: 100%; border-collapse: collapse; font-size: 0.825rem; }
.cron-examples th, .cron-examples td { text-align: left; padding: 7px 12px; border-bottom: 1px solid var(--border); }
.cron-examples th { font-weight: 600; color: var(--text-3); font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; }
.cron-examples td:first-child { font-family: var(--font-mono); color: var(--accent-2); font-size: 0.8rem; }

/* ── Regex ── */
.match-highlight { background: rgba(99,102,241,0.25); border-radius: 2px; outline: 1px solid rgba(99,102,241,0.5); }
#regex-highlighted {
  font-family: var(--font-mono);
  font-size: 0.825rem;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 130px;
  padding: 10px 13px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  line-height: 1.7;
}
.regex-flags { display: flex; gap: 16px; margin: 12px 0; }
.regex-flags label { display: flex; align-items: center; gap: 6px; font-size: 0.875rem; cursor: pointer; color: var(--text-2); }
.match-table { width: 100%; border-collapse: collapse; font-size: 0.825rem; margin-top: 12px; }
.match-table th, .match-table td { padding: 7px 12px; border-bottom: 1px solid var(--border); text-align: left; }
.match-table th { font-weight: 600; color: var(--text-3); font-size: 0.7rem; font-family: var(--font-mono); text-transform: uppercase; }
.match-table td { font-family: var(--font-mono); color: var(--text); }

/* ── Markdown Preview ── */
.markdown-preview {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  min-height: 160px;
  overflow-y: auto;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--text);
}
.markdown-preview h1,.markdown-preview h2,.markdown-preview h3 { font-family: var(--font-display); margin: 16px 0 8px; font-weight: 700; letter-spacing: -0.02em; }
.markdown-preview p  { margin-bottom: 10px; }
.markdown-preview code { font-family: var(--font-mono); background: var(--bg-2); padding: 2px 6px; border-radius: 4px; font-size: 0.82em; color: var(--accent-2); }
.markdown-preview pre { background: var(--bg-2); padding: 12px; border-radius: var(--radius-sm); overflow-x: auto; margin-bottom: 12px; border: 1px solid var(--border); }
.markdown-preview pre code { background: none; padding: 0; color: var(--text); }
.markdown-preview blockquote { border-left: 2px solid var(--accent); padding-left: 14px; color: var(--text-2); margin: 12px 0; }
.markdown-preview ul,.markdown-preview ol { padding-left: 22px; margin-bottom: 10px; }
.markdown-preview table { border-collapse: collapse; margin-bottom: 12px; width: 100%; }
.markdown-preview th,.markdown-preview td { border: 1px solid var(--border); padding: 7px 10px; }
.markdown-preview th { background: var(--bg-2); font-weight: 600; }
.markdown-preview a { color: var(--accent-2); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero { padding: 56px 0 40px; }
  .hero-h1 { font-size: 2rem; }
  .hero-stats { flex-direction: column; width: 100%; }
  .hero-stat-divider { width: 100%; height: 1px; }
  .split-pane { grid-template-columns: 1fr; }
  .cron-fields { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .hero-stats { display: none; }
  .cron-fields { grid-template-columns: 1fr; }
  .ts-live { font-size: 1.75rem; }
  .header-inner { gap: 8px; }
}