/* ============================================================
   SmartTools Hub — style.css
   Design system, glassmorphism, components
   ============================================================ */

:root {
  --accent:        #6366f1;
  --accent-2:      #8b5cf6;
  --accent-rgb:    99, 102, 241;
  --bg:            #f4f6fb;
  --bg-2:          #e9edf7;
  --surface:       #ffffff;
  --surface-2:     #f8fafc;
  --text:          #0f172a;
  --text-muted:    #64748b;
  --border:        rgba(15, 23, 42, 0.08);
  --glass-bg:      rgba(255, 255, 255, 0.65);
  --glass-border:  rgba(255, 255, 255, 0.45);
  --shadow:        0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg:     0 20px 50px rgba(15, 23, 42, 0.15);
  --radius:        18px;
  --radius-sm:     12px;
  --grad:          linear-gradient(135deg, var(--accent), var(--accent-2));
  --font-base:     16px;
  --transition:    0.25s ease;
}

[data-theme="dark"] {
  --bg:            #0b1020;
  --bg-2:          #11182f;
  --surface:       #151c33;
  --surface-2:     #1b2440;
  --text:          #e6ecff;
  --text-muted:    #93a0c0;
  --border:        rgba(255, 255, 255, 0.08);
  --glass-bg:      rgba(21, 28, 51, 0.55);
  --glass-border:  rgba(255, 255, 255, 0.10);
  --shadow:        0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg:     0 20px 50px rgba(0, 0, 0, 0.45);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: var(--font-base);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

h1, h2, h3, h4, h5 { font-weight: 700; letter-spacing: -0.02em; }

.text-gradient {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }

.section-title {
  font-size: 2.1rem;
  margin-bottom: 8px;
}
.section-sub {
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 620px;
}

/* ---------- Navbar ---------- */
.navbar-glass {
  background: var(--glass-bg);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 1030;
  transition: background var(--transition);
}
.navbar-glass .navbar-brand {
  font-weight: 800;
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.navbar-glass .brand-logo {
  width: 38px; height: 38px;
  border-radius: 11px;
  background: var(--grad);
  display: grid; place-items: center;
  color: #fff; font-size: 1.1rem;
  box-shadow: 0 6px 18px rgba(var(--accent-rgb), 0.45);
}
.navbar-glass .nav-link {
  color: var(--text-muted);
  font-weight: 600;
  margin: 0 2px;
  border-radius: 10px;
  padding: 8px 14px !important;
  transition: var(--transition);
}
.navbar-glass .nav-link:hover,
.navbar-glass .nav-link.active {
  color: var(--text);
  background: rgba(var(--accent-rgb), 0.10);
}
.navbar-glass .nav-link.active { color: var(--accent); }

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  width: 42px; height: 42px;
  border-radius: 50%;
  display: grid; place-items: center;
  cursor: pointer;
  transition: var(--transition);
}
.theme-toggle:hover { transform: rotate(15deg); border-color: var(--accent); }

/* ---------- Glass card ---------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-hover {
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(var(--accent-rgb), 0.35);
}

/* ---------- Tool card ---------- */
.tool-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  height: 100%;
  position: relative;
}
.tool-card .tool-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent);
  display: grid; place-items: center;
  font-size: 1.4rem;
  margin-bottom: 6px;
}
.tool-card h5 { margin: 0; font-size: 1.05rem; }
.tool-card p { margin: 0; color: var(--text-muted); font-size: 0.9rem; flex-grow: 1; }
.tool-card .tool-cat {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
}
.tool-card .fav-btn {
  position: absolute;
  top: 16px; right: 16px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.05rem;
  transition: var(--transition);
}
.tool-card .fav-btn:hover { transform: scale(1.2); }
.tool-card .fav-btn.is-fav { color: #ef4444; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 90px 0 70px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -40% 10% auto 10%;
  height: 600px;
  background:
    radial-gradient(closest-side, rgba(var(--accent-rgb), 0.30), transparent),
    radial-gradient(closest-side, rgba(139, 92, 246, 0.25), transparent 70%) 200px 80px / 500px 500px no-repeat;
  filter: blur(20px);
  z-index: -1;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.1; margin-bottom: 18px; }
.hero p.lead { font-size: 1.2rem; color: var(--text-muted); max-width: 620px; }

/* ---------- Search ---------- */
.search-wrap { max-width: 620px; position: relative; }
.search-wrap .form-control {
  height: 60px;
  border-radius: 50px;
  padding-left: 56px;
  padding-right: 120px;
  font-size: 1.05rem;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  color: var(--text);
}
.search-wrap .form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.18);
}
.search-wrap .search-icon {
  position: absolute; left: 22px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: 1.1rem;
}
.search-wrap .search-go {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  border-radius: 50px; padding: 0 22px; height: 44px;
  background: var(--grad); color: #fff; border: none; font-weight: 600;
}
.search-results {
  position: absolute; top: 70px; left: 0; right: 0;
  z-index: 20; max-height: 360px; overflow: auto;
}
.search-results .result-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; cursor: pointer; border-bottom: 1px solid var(--border);
}
.search-results .result-item:hover { background: rgba(var(--accent-rgb), 0.08); }
.search-results .ri-icon { color: var(--accent); }

/* ---------- Buttons ---------- */
.btn-accent {
  background: var(--grad); color: #fff; border: none;
  padding: 12px 26px; border-radius: 50px; font-weight: 600;
  box-shadow: 0 8px 22px rgba(var(--accent-rgb), 0.35);
  transition: var(--transition);
}
.btn-accent:hover { transform: translateY(-2px); color: #fff; box-shadow: 0 12px 28px rgba(var(--accent-rgb), 0.5); }
.btn-soft {
  background: rgba(var(--accent-rgb), 0.10); color: var(--accent);
  border: 1px solid transparent; padding: 10px 22px; border-radius: 50px; font-weight: 600;
}
.btn-soft:hover { background: rgba(var(--accent-rgb), 0.18); color: var(--accent); }

/* ---------- Stat / Category card ---------- */
.stat-card { padding: 24px; text-align: center; }
.stat-card .stat-num { font-size: 2.4rem; font-weight: 800; line-height: 1; }
.stat-card .stat-label { color: var(--text-muted); font-weight: 600; }

.cat-card {
  display: flex; align-items: center; gap: 16px; padding: 22px;
}
.cat-card .cat-icon {
  width: 54px; height: 54px; border-radius: 14px;
  display: grid; place-items: center; color: #fff; font-size: 1.4rem;
  flex-shrink: 0;
}
.cat-card h5 { margin: 0; }
.cat-card small { color: var(--text-muted); }

/* gradient helpers */
.bg-cat-productivity { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.bg-cat-generators   { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
.bg-cat-converters   { background: linear-gradient(135deg, #10b981, #06b6d4); }
.bg-cat-color        { background: linear-gradient(135deg, #ec4899, #f59e0b); }
.bg-cat-pdf          { background: linear-gradient(135deg, #ef4444, #ec4899); }
.bg-cat-text         { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.bg-cat-image        { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.bg-cat-developer    { background: linear-gradient(135deg, #14b8a6, #6366f1); }

/* ---------- Forms / inputs ---------- */
.form-control, .form-select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
}
.form-control:focus, .form-select:focus {
  background: var(--surface);
  color: var(--text);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.15);
}
.form-label { font-weight: 600; font-size: 0.92rem; }

.tool-panel {
  padding: 28px;
}
.tool-output {
  background: var(--surface-2);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  min-height: 60px;
  word-break: break-word;
  white-space: pre-wrap;
  font-family: "JetBrains Mono", "Consolas", monospace;
  font-size: 0.9rem;
}

/* ---------- Loading / skeleton ---------- */
#pageLoader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg);
  display: grid; place-items: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#pageLoader.hidden { opacity: 0; visibility: hidden; }
.loader-ring {
  width: 56px; height: 56px;
  border: 5px solid rgba(var(--accent-rgb), 0.18);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--bg-2) 50%, var(--surface-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-sm);
}

/* ---------- Notification toast ---------- */
.toast-container {
  position: fixed; top: 84px; right: 20px; z-index: 1080;
}
.note-toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  color: var(--text);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 10px;
  min-width: 260px;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
}
.note-toast.success { border-left-color: #10b981; }
.note-toast.error   { border-left-color: #ef4444; }
.note-toast .nt-close { float: right; cursor: pointer; color: var(--text-muted); }

/* ---------- Tool page header ---------- */
.tool-hero { padding: 30px 0 10px; }
.tool-hero .tool-icon-lg {
  width: 64px; height: 64px; border-radius: 18px;
  background: var(--grad); color: #fff;
  display: grid; place-items: center; font-size: 1.8rem;
  margin-bottom: 12px;
  box-shadow: 0 10px 28px rgba(var(--accent-rgb), 0.4);
}

/* ---------- Misc ---------- */
.divider { height: 1px; background: var(--border); margin: 24px 0; }
.text-muted-2 { color: var(--text-muted) !important; }
.badge-soft { background: rgba(var(--accent-rgb), 0.12); color: var(--accent); font-weight: 600; }

footer.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 60px 0 24px;
  margin-top: 60px;
}
footer.site-footer h6 { font-weight: 700; text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.05em; color: var(--text-muted); }
footer.site-footer a { display: block; color: var(--text-muted); padding: 4px 0; }
footer.site-footer a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); margin-top: 36px; padding-top: 22px; color: var(--text-muted); font-size: 0.9rem; }

.copy-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text-muted);
  border-radius: 10px; padding: 6px 12px; font-size: 0.85rem; cursor: pointer;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Progress bar */
.progress { height: 10px; border-radius: 50px; background: var(--surface-2); }
.progress-bar { background: var(--grad); border-radius: 50px; }

/* calendar */
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.calendar-grid .dow { text-align: center; font-weight: 700; color: var(--text-muted); padding: 8px 0; font-size: 0.8rem; }
.calendar-grid .day {
  aspect-ratio: 1; display: grid; place-items: center;
  border-radius: 10px; background: var(--surface-2); font-weight: 600; cursor: pointer;
  transition: var(--transition); position: relative;
}
.calendar-grid .day:hover { background: rgba(var(--accent-rgb), 0.15); }
.calendar-grid .day.today { background: var(--grad); color: #fff; }
.calendar-grid .day.has-event::after {
  content: ""; position: absolute; bottom: 5px; width: 5px; height: 5px;
  border-radius: 50%; background: #ef4444;
}
.calendar-grid .day.empty { background: transparent; cursor: default; }

/* todo */
.todo-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 12px; background: var(--surface-2);
  border: 1px solid var(--border); margin-bottom: 8px;
}
.todo-item.done .todo-text { text-decoration: line-through; color: var(--text-muted); }
.prio { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.prio-low { background: #10b981; } .prio-med { background: #f59e0b; } .prio-high { background: #ef4444; }