/* MockInterviewForm - Modern, distinctive design */

:root {
  --bg: #0f0f12;
  --surface: #18181c;
  --border: #2a2a2e;
  --text: #e4e4e7;
  --text-muted: #a1a1aa;
  --accent: #22d3ee;
  --accent-dim: #0891b2;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #050d18;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity 0.2s;
}

.logo:hover {
  opacity: 0.85;
}

.logo-img {
  height: 74px;
  width: auto;
  object-fit: contain;
  display: block;
  vertical-align: middle;
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--accent);
}

/* Event Hero */
.event-hero {
  padding: 4rem 0 3rem;
  text-align: center;
}

.event-badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: rgba(34, 211, 238, 0.12);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.event-hero h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.event-mission {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 auto 0.5rem;
  letter-spacing: -0.01em;
}

.event-tagline {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Events Sections */
.events-section {
  padding: 0 0 4rem;
}

.events-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 2rem;
  padding: 0.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: fit-content;
}

.events-tab {
  padding: 0.65rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-radius: calc(var(--radius) - 2px);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.events-tab:hover {
  color: var(--text);
}

.events-tab--active {
  color: var(--bg);
  background: var(--accent);
}

.events-tab--active:hover {
  color: var(--bg);
  background: var(--accent-dim);
}

.events-panel {
  display: none;
}

.events-panel--active {
  display: block;
}

.events-panel-note {
  font-size: 1rem;
  color: var(--accent);
  margin: 0 0 1.5rem;
  font-weight: 500;
}

.events-empty-state {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.events-empty-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
}

.events-empty-state p {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  color: var(--text);
}

.events-empty-sub {
  color: var(--accent) !important;
  font-weight: 500;
}

.event-card {
  max-width: 640px;
  margin: 0 auto 2rem;
  padding: 2.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.event-card:last-child {
  margin-bottom: 0;
}

.event-card--highlighted {
  border-color: var(--accent);
  border-width: 2px;
  box-shadow: 0 0 0 1px var(--accent), 0 8px 32px rgba(34, 211, 238, 0.15);
  background: linear-gradient(135deg, var(--surface) 0%, rgba(34, 211, 238, 0.06) 100%);
}

.event-card--highlighted .event-card-tagline {
  color: var(--text);
}

.event-card--highlighted h2 {
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 50%, #67e8f9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.event-card--highlighted .event-badge {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.25) 0%, rgba(8, 145, 178, 0.3) 100%);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
}

.event-card-tagline {
  color: var(--text-muted);
  margin: 0 0 1.5rem;
  line-height: 1.6;
}

.event-card--past {
  opacity: 0.9;
  border-style: dashed;
  background: rgba(24, 24, 28, 0.6);
}

.event-badge--past {
  background: rgba(161, 161, 170, 0.2);
  border-color: rgba(161, 161, 170, 0.3);
  color: var(--text-muted);
}

.event-card-status {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 1rem 0 0;
}

.event-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1.5rem;
}

.event-meta {
  display: grid;
  gap: 1rem;
  margin: 0 0 2rem;
}

.meta-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1rem;
  align-items: baseline;
}

.meta-row dt {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: 0;
}

.meta-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.event-description {
  margin-bottom: 2rem;
}

.event-description h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
}

.event-description ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.event-description li {
  margin-bottom: 0.35rem;
}

.event-doubt-note {
  margin: 1rem 0 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.event-doubt-note a {
  color: var(--accent);
  text-decoration: none;
}

.event-doubt-note a:hover {
  text-decoration: underline;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border-radius: var(--radius);
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--border);
}

.admin-table-wrap {
  overflow-x: auto;
  margin-top: 1rem;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.admin-table th,
.admin-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.admin-table th {
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.admin-table td a {
  color: var(--accent);
  text-decoration: none;
}

.admin-table td a:hover {
  text-decoration: underline;
}

.btn-delete {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #f87171;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.btn-delete:hover {
  background: rgba(239, 68, 68, 0.25);
  color: #fca5a5;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.05rem;
  width: 100%;
  text-align: center;
}

/* Register Page */
.register-section {
  padding: 4rem 0;
}

.register-card {
  max-width: 480px;
  margin: 0 auto;
  padding: 2.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.register-card--admin {
  max-width: 960px;
}

.back-link {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 1.5rem;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--accent);
}

.register-card h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.register-intro {
  color: var(--text-muted);
  margin: 0 0 2rem;
}

.register-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label .optional {
  font-weight: 400;
  color: var(--text-muted);
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group select {
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.form-group input::placeholder,
.form-group select {
  color: var(--text-muted);
}

.form-group-checkbox {
  flex-direction: row;
  align-items: center;
}

.form-group-checkbox label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-weight: 500;
}

.form-group-checkbox input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--accent);
}

.form-message {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  white-space: pre-line;
}

.form-message--success {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #4ade80;
}

.form-message--success .form-follow-link {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.4rem 0.8rem;
  color: var(--bg);
  background: var(--accent);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
}

.form-message--success .form-follow-link:hover {
  background: var(--accent-dim);
  color: var(--bg);
}

.form-message--error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.nav-active {
  color: var(--accent) !important;
}

/* Sections */
.section {
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}

.section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.section p {
  color: var(--text-muted);
  margin: 0;
}

/* Footer */
.footer {
  margin-top: auto;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.footer p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Mobile responsive */
@media (max-width: 640px) {
  .container {
    padding: 0 1rem;
  }

  .header .container {
    padding-block: 0.75rem;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .logo-img {
    height: 48px;
  }

  .nav {
    gap: 1rem;
    font-size: 0.9rem;
  }

  .event-hero {
    padding: 2.5rem 0 2rem;
  }

  .event-hero h1 {
    font-size: 1.75rem;
  }

  .event-tagline {
    font-size: 1rem;
  }

  .events-tabs {
    margin-bottom: 1.5rem;
  }

  .events-tab {
    padding: 0.5rem 0.9rem;
    font-size: 0.875rem;
  }

  .event-card,
  .register-card {
    padding: 1.5rem;
  }

  .meta-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
    margin-bottom: 0.75rem;
  }

  .meta-row dt {
    font-size: 0.8rem;
    margin-bottom: 0.15rem;
  }

  .meta-row dd {
    font-size: 0.9rem;
  }

  .register-section {
    padding: 2rem 0;
  }

  .register-card h1 {
    font-size: 1.5rem;
  }

  .register-intro {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }

  .form-group input,
  .form-group select {
    padding: 0.65rem 0.9rem;
    font-size: 16px; /* prevents zoom on iOS when focusing inputs */
  }

  .admin-table th,
  .admin-table td {
    padding: 0.5rem 0.65rem;
    font-size: 0.8rem;
  }

  .admin-table th {
    white-space: normal;
  }

  .footer {
    padding: 1.5rem 0;
  }
}