/* ============================================================================
   RECRUITMENT INTERVIEW ASSESSMENT - STYLESHEET
   Palet warna:
     - Navy gelap   : #16213E  (header/aksen utama)
     - Biru aktif   : #3B5BDB  (soal aktif)
     - Hijau sukses : #2E9E5B  (soal terjawab / timer aman)
     - Kuning warn  : #F2B705  (timer waspada)
     - Merah bahaya : #E63946  (timer kritis)
     - Latar        : #F5F6FA
============================================================================= */

:root {
  --navy: #16213E;
  --navy-light: #24345C;
  --blue-active: #3B5BDB;
  --green: #2E9E5B;
  --green-bg: #E5F5EC;
  --yellow: #F2B705;
  --yellow-bg: #FFF8E1;
  --red: #E63946;
  --red-bg: #FDEAEC;
  --bg: #F5F6FA;
  --card-bg: #FFFFFF;
  --text-main: #1D2233;
  --text-muted: #6B7280;
  --border: #E3E6EE;
  --radius: 10px;
  --shadow: 0 4px 16px rgba(22, 33, 62, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
}
.hidden { display: none !important; }

/* ============================================================
   PAGE SWITCHER
   Hanya satu .page yang punya class "active-page" pada satu waktu.
============================================================ */
.page {
  display: none;
  min-height: 100vh;
}
.page.active-page {
  display: block;
}

/* ============================================================
   LOADING OVERLAY
============================================================ */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(22, 33, 62, 0.55);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: #fff;
  font-size: 14px;
}
.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
   LOGIN PAGE
============================================================ */
#login-page {
  align-items: center;
  justify-content: center;
  padding: 24px;
}
#login-page.active-page {
  display: flex;
}
.login-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 32px;
  max-width: 420px;
  width: 100%;
  text-align: center;
}
.login-logo { margin-bottom: 18px; }
.logo-mark {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  letter-spacing: 0.5px;
}
.login-title {
  font-size: 22px;
  margin: 8px 0 6px;
  color: var(--navy);
}
.login-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 26px;
  line-height: 1.5;
}
.login-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
#token-input {
  padding: 13px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  text-align: center;
  letter-spacing: 1px;
  outline: none;
  transition: border-color 0.15s;
}
#token-input:focus {
  border-color: var(--blue-active);
}
.btn, #btn-start {
  border: none;
  border-radius: 8px;
  padding: 13px 16px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.08s ease, opacity 0.15s ease;
}
#btn-start {
  background: var(--navy);
  color: #fff;
}
#btn-start:hover { opacity: 0.92; }
#btn-start:active { transform: scale(0.98); }

.login-error {
  margin-top: 16px;
  color: var(--red);
  background: var(--red-bg);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13.5px;
}

/* ============================================================
   ASSESSMENT PAGE LAYOUT
============================================================ */
.assessment-layout {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  width: 230px;
  flex-shrink: 0;
  background: var(--navy);
  color: #fff;
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
}
.sidebar-header { margin-bottom: 16px; }
.sidebar-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.7);
}
.question-nav {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  overflow-y: auto;
}
.q-nav-item {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 8px;
  border: none;
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}
.q-nav-item.answered { background: var(--green); }
.q-nav-item.active { background: var(--blue-active); }
.q-nav-item:disabled { cursor: not-allowed; opacity: 0.5; }

.sidebar-legend {
  margin-top: auto;
  padding-top: 18px;
  font-size: 12px;
  color: rgba(255,255,255,0.75);
}
.legend-item { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-answered { background: var(--green); }
.dot-active { background: var(--blue-active); }
.dot-idle { background: rgba(255,255,255,0.25); }

.assessment-main {
  flex: 1;
  padding: 28px 36px;
  max-width: 760px;
  margin: 0 auto;
  width: 100%;
}
.assessment-header { margin-bottom: 18px; }
.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.candidate-name { font-weight: 600; color: var(--navy); }
.progress-bar-track {
  height: 8px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--blue-active);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.timer-wrap {
  display: flex;
  justify-content: center;
  margin: 18px 0 22px;
}
.timer-badge {
  padding: 10px 26px;
  border-radius: 999px;
  font-size: 22px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
  transition: background 0.3s, color 0.3s;
}
.timer-green { background: var(--green-bg); color: var(--green); }
.timer-yellow { background: var(--yellow-bg); color: #8a6d00; }
.timer-red { background: var(--red-bg); color: var(--red); animation: pulse 1s infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.question-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 26px;
  margin-bottom: 22px;
}
.question-text {
  font-size: 18px;
  line-height: 1.5;
  margin: 0 0 22px;
  color: var(--text-main);
}

.question-image-wrap {
  margin: 0 0 22px;
  text-align: center;
}
.question-image {
  max-width: 100%;
  max-height: 420px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.options-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.option-item {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 13px 14px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.option-item:hover { border-color: var(--blue-active); }
.option-item.selected {
  border-color: var(--blue-active);
  background: #EEF1FD;
}
.option-item input[type="radio"] {
  width: 18px; height: 18px;
  accent-color: var(--blue-active);
  flex-shrink: 0;
}
.option-label-letter {
  font-weight: 700;
  color: var(--navy);
  width: 20px;
}

.essay-container textarea {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  font-size: 14.5px;
  font-family: inherit;
  resize: vertical;
  outline: none;
}
.essay-container textarea:focus { border-color: var(--blue-active); }

.nav-buttons {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.btn-secondary {
  background: #fff;
  border: 1.5px solid var(--border) !important;
  color: var(--text-main);
}
.btn-secondary:hover { border-color: var(--navy) !important; }
.btn-primary {
  background: var(--navy);
  color: #fff;
  margin-left: auto;
}
.btn-primary:hover { opacity: 0.92; }
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ============================================================
   FINISH PAGE
============================================================ */
#finish-page {
  align-items: center;
  justify-content: center;
  padding: 24px;
}
#finish-page.active-page { display: flex; }
.finish-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 48px 36px;
  max-width: 460px;
  text-align: center;
}
.finish-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--green-bg);
  color: var(--green);
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}
.finish-card h1 { color: var(--navy); margin-bottom: 12px; font-size: 22px; }
.finish-card p { color: var(--text-muted); font-size: 14.5px; line-height: 1.6; margin: 6px 0; }

/* ============================================================
   RESPONSIVE - MOBILE
============================================================ */
@media (max-width: 820px) {
  .assessment-layout { flex-direction: column; }
  .sidebar {
    width: 100%;
    padding: 14px 16px;
  }
  .question-nav {
    grid-template-columns: repeat(8, 1fr);
    max-height: 140px;
  }
  .sidebar-legend {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(255,255,255,0.15);
  }
  .assessment-main {
    padding: 20px 16px 32px;
  }
  .question-card { padding: 20px 18px; }
  .timer-badge { font-size: 18px; padding: 8px 20px; }
}

@media (max-width: 480px) {
  .login-card { padding: 30px 22px; }
  .question-nav { grid-template-columns: repeat(6, 1fr); }
  .nav-buttons { flex-wrap: wrap; }
  .btn-primary, .btn-secondary { flex: 1; min-width: 130px; }
}