/*
  Ad Campaign Analyzer Styles
  - Base design system and 4 switchable themes.
  - Theme inspiration: modern editorial + high-contrast design direction.
*/

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  transition: background 220ms ease, color 220ms ease;
  position: relative;
  overflow-x: hidden;
}

.background-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 20%, var(--glow-1), transparent 42%),
    radial-gradient(circle at 80% 15%, var(--glow-2), transparent 44%),
    radial-gradient(circle at 60% 80%, var(--glow-3), transparent 45%);
  opacity: 0.85;
}

.topbar {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.2rem 1rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.brand h1 {
  margin: 0;
  font-size: clamp(1.4rem, 2vw, 2rem);
  letter-spacing: 0.3px;
}

.brand p {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.theme-switcher {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.theme-switcher label {
  font-size: 0.9rem;
  color: var(--muted);
}

select,
input[type="file"],
button,
.back-link {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  padding: 0.6rem 0.8rem;
  font-size: 0.95rem;
  transition: transform 130ms ease, border-color 130ms ease, box-shadow 130ms ease;
}

select:focus,
input[type="file"]:focus,
button:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #ffffff;
  border: none;
  cursor: pointer;
  font-weight: 600;
}

button:hover,
.back-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px var(--shadow);
}

.back-link {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.upload-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.upload-panel,
.summary-card,
.table-section,
.diagnostics-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 12px 30px var(--shadow);
}

.upload-panel {
  padding: 1.2rem;
  animation: panelIn 420ms ease;
}

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

.upload-panel h2 {
  margin-top: 0;
}

.panel-description {
  color: var(--muted);
}

.upload-form {
  margin-top: 0.8rem;
  display: grid;
  gap: 0.7rem;
}

.feedback {
  margin-top: 0.8rem;
  min-height: 1.2rem;
  font-weight: 600;
}

.feedback.success {
  color: var(--good);
}

.feedback.error {
  color: var(--bad);
}

.page-footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  color: var(--muted);
}

.dashboard-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem 1rem;
  display: grid;
  gap: 1rem;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.summary-card {
  padding: 1rem;
}

.summary-card h3 {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.summary-card p {
  margin: 0.45rem 0 0;
  font-size: 1.45rem;
  font-weight: 700;
}

.table-section {
  padding: 1rem;
}

.diagnostics-section {
  padding: 1rem;
}

.diagnostics-section h3 {
  margin: 0;
}

.diagnostics-section p {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.diagnostics-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
}

.campaign-names-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 12px 30px var(--shadow);
  padding: 1rem;
}

.campaign-names-section h3 {
  margin: 0 0 0.6rem;
}

.campaign-names-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.campaign-name-pill {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  font-size: 0.88rem;
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.table-header h2 {
  margin: 0;
}

.table-header p {
  margin: 0.4rem 0 0.8rem;
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 0.65rem;
  text-align: left;
  font-size: 0.92rem;
}

th {
  color: var(--muted);
  font-weight: 600;
}

tr:hover td {
  background: var(--row-hover);
}

.metric-good {
  color: var(--good);
  font-weight: 700;
}

.metric-bad {
  color: var(--bad);
  font-weight: 700;
}

.score-pill {
  display: inline-flex;
  min-width: 54px;
  justify-content: center;
  border-radius: 999px;
  padding: 0.2rem 0.5rem;
  font-weight: 700;
}

.score-high {
  background: color-mix(in srgb, var(--good) 20%, transparent);
  color: var(--good);
}

.score-mid {
  background: color-mix(in srgb, var(--warn) 22%, transparent);
  color: var(--warn);
}

.score-low {
  background: color-mix(in srgb, var(--bad) 22%, transparent);
  color: var(--bad);
}

.decision-kill {
  background: color-mix(in srgb, var(--bad) 22%, transparent);
  color: var(--bad);
}

.decision-flag {
  background: color-mix(in srgb, var(--warn) 22%, transparent);
  color: var(--warn);
}

.decision-continue {
  background: color-mix(in srgb, var(--good) 22%, transparent);
  color: var(--good);
}

/* Theme: Corporate Clean (Default) */
body.theme-corporate-clean {
  --bg: #f2f5f8;
  --surface: #ffffff;
  --text: #1d2733;
  --muted: #5f6d7c;
  --border: #dbe3ea;
  --accent: #1f6feb;
  --accent-2: #0ea5a8;
  --shadow: rgba(26, 40, 56, 0.14);
  --good: #0f9f6e;
  --bad: #c83b3b;
  --warn: #c06b00;
  --glow-1: rgba(31, 111, 235, 0.17);
  --glow-2: rgba(14, 165, 168, 0.14);
  --glow-3: rgba(192, 107, 0, 0.1);
  --row-hover: #f6f9fc;
}

/* Theme: Light Minimalist */
body.theme-light-minimal {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1e1f1b;
  --muted: #65685f;
  --border: #e7e5df;
  --accent: #2d6a4f;
  --accent-2: #52796f;
  --shadow: rgba(51, 58, 46, 0.12);
  --good: #2d6a4f;
  --bad: #b02a37;
  --warn: #a56000;
  --glow-1: rgba(82, 121, 111, 0.13);
  --glow-2: rgba(153, 175, 142, 0.1);
  --glow-3: rgba(45, 106, 79, 0.08);
  --row-hover: #f5f6f1;
}

/* Theme: Dark Mode */
body.theme-dark-mode {
  --bg: #10151d;
  --surface: #182130;
  --text: #e6edf6;
  --muted: #9eb0c5;
  --border: #2a3a4f;
  --accent: #3f8cff;
  --accent-2: #00b3a6;
  --shadow: rgba(0, 0, 0, 0.34);
  --good: #39d38b;
  --bad: #ff6b6b;
  --warn: #ffba49;
  --glow-1: rgba(63, 140, 255, 0.22);
  --glow-2: rgba(0, 179, 166, 0.16);
  --glow-3: rgba(255, 186, 73, 0.14);
  --row-hover: #1e2a3c;
}

/* Theme: Neon Cyber */
body.theme-neon-cyber {
  --bg: #08060f;
  --surface: #120d1f;
  --text: #f4edff;
  --muted: #bca8dc;
  --border: #3f2f68;
  --accent: #00d6ff;
  --accent-2: #ff5f9e;
  --shadow: rgba(0, 0, 0, 0.45);
  --good: #00f5a0;
  --bad: #ff4d6d;
  --warn: #ffd166;
  --glow-1: rgba(0, 214, 255, 0.22);
  --glow-2: rgba(255, 95, 158, 0.2);
  --glow-3: rgba(0, 245, 160, 0.14);
  --row-hover: #1a1331;
}

@media (max-width: 920px) {
  .upload-layout,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar {
    justify-content: space-between;
  }
}