:root {
  --bg-dark: #040b18;
  --card-bg: rgba(10, 24, 48, 0.65);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-border-hover: rgba(255, 140, 0, 0.6);
  --accent-orange: #ff8c00;
  --accent-orange-glow: rgba(255, 140, 0, 0.4);
  --accent-cyan: #00d2ff;
  --text-main: #ffffff;
  --text-sub: #8fa0c0;
  --glass-blur: blur(16px);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  user-select: none;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.app-container {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2.5rem 3rem;
  width: 100%;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-logo-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.6rem;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: var(--glass-blur);
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
}

.brand-logo-btn img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  filter: drop-shadow(0 0 8px var(--accent-orange));
  transition: transform 0.3s ease;
}

.brand-logo-btn:hover {
  border-color: var(--accent-orange);
  box-shadow: 0 0 20px var(--accent-orange-glow);
  transform: scale(1.05);
}

.brand-logo-btn:hover img {
  transform: scale(1.1);
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.brand-text p {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-sub);
  letter-spacing: 1.5px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* Speedtest Widget */
.network-widget {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.5rem 0.85rem;
  border-radius: 12px;
  backdrop-filter: var(--glass-blur);
  text-align: right;
  cursor: pointer;
  transition: all 0.3s ease;
}

.network-widget:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 210, 255, 0.08);
}

.network-speed {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.network-ping {
  font-size: 0.75rem;
  color: var(--text-sub);
}

/* Clock Widget */
.clock-widget { text-align: right; }
.clock-time { font-size: 1.4rem; font-weight: 800; }
.clock-date { font-size: 0.75rem; color: var(--accent-orange); font-weight: 500; }

.settings-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: var(--glass-blur);
}

.settings-btn:hover {
  background: rgba(255, 140, 0, 0.2);
  border-color: var(--accent-orange);
  transform: rotate(90deg);
}

.settings-btn svg { width: 20px; height: 20px; stroke: #fff; }

.hero { margin-bottom: 2.5rem; }
.hero-title { font-size: 2.75rem; font-weight: 800; margin-bottom: 0.4rem; }
.hero-title span { color: var(--accent-orange); text-shadow: 0 0 25px var(--accent-orange-glow); }
.hero-subtitle { font-size: 1.05rem; color: var(--text-sub); }

.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
}

.card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 1.75rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  backdrop-filter: var(--glass-blur);
  cursor: pointer;
  transition: transform 0.15s ease-out, border-color 0.3s ease, box-shadow 0.3s ease;
  transform-style: preserve-3d;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: 24px;
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(255, 140, 0, 0.15),
    transparent 40%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.card:hover::before { opacity: 1; }
.card:hover {
  border-color: var(--card-border-hover);
  box-shadow: 0 12px 35px -5px rgba(0, 0, 0, 0.5), 0 0 30px 2px var(--accent-orange-glow);
}

.card.dragging { opacity: 0.4; transform: scale(0.95); }
.card.drag-over { border-color: var(--accent-cyan); box-shadow: 0 0 25px rgba(0, 210, 255, 0.5); }

.card-icon-wrapper {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: all 0.3s ease;
}

.card:hover .card-icon-wrapper {
  background: rgba(255, 140, 0, 0.12);
  border-color: var(--accent-orange);
  box-shadow: 0 0 20px var(--accent-orange-glow);
  transform: translateZ(20px) scale(1.08);
}

.card-icon-wrapper svg { width: 34px; height: 34px; stroke: var(--accent-orange); fill: none; stroke-width: 2; }

.card-title { font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: 0.35rem; }
.card-subtitle { font-size: 0.8rem; color: var(--text-sub); }

.card-actions {
  position: absolute;
  top: 10px; right: 10px;
  display: flex; gap: 6px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.card:hover .card-actions { opacity: 1; }

.action-btn {
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  width: 28px; height: 28px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.action-btn:hover { background: var(--accent-orange); color: #000; }
.action-btn.delete:hover { background: #ff4757; color: #fff; }
.action-btn svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }

.card-add {
  border: 2px dashed rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.02);
  justify-content: center;
  min-height: 200px;
}

.card-add:hover { border-color: var(--accent-cyan); background: rgba(0, 210, 255, 0.05); }
.card-add .add-icon { font-size: 2.5rem; color: var(--text-sub); transition: all 0.3s ease; }
.card-add:hover .add-icon { color: var(--accent-cyan); transform: scale(1.2) rotate(90deg); }

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(2, 6, 16, 0.85);
  backdrop-filter: blur(12px);
  z-index: 100;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active { opacity: 1; pointer-events: all; }

.modal {
  background: #0d1b32;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  width: 100%; max-width: 480px;
  padding: 2rem;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal { transform: scale(1); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.modal-close { background: transparent; border: none; color: var(--text-sub); font-size: 1.5rem; cursor: pointer; }

.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-sub); margin-bottom: 0.5rem; }
.form-group input, .form-group select {
  width: 100%; padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px; color: #fff; font-size: 0.95rem; outline: none;
}

.form-group select optgroup { background: #0d1b32; color: var(--accent-orange); }
.form-group select option { background: #0a1830; color: #fff; }

.modal-actions { display: flex; justify-content: flex-end; gap: 1rem; margin-top: 1.5rem; }
.btn { padding: 0.75rem 1.5rem; border-radius: 12px; font-weight: 600; cursor: pointer; border: none; }
.btn-secondary { background: rgba(255, 255, 255, 0.08); color: #fff; }
.btn-primary { background: var(--accent-orange); color: #000; box-shadow: 0 0 15px var(--accent-orange-glow); }

/* Speedtest Detail Grid */
.speed-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.speed-stat-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
}