:root {
  /* Theme Variables */
  --theme-rgb: 59, 130, 246; /* Blue */
  --theme-glow-rgb: 139, 92, 246; /* Purple */

  --bg-dark: #0B0F19;
  --glass-bg: rgba(17, 24, 39, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 16px 40px -10px rgba(0, 0, 0, 0.5);
  --text-main: #F3F4F6;
  --text-dim: #9CA3AF;
  
  --accent-primary: rgb(var(--theme-rgb));
  --accent-glow: rgb(var(--theme-glow-rgb));
  
  --stamp: #F43F5E;
  --stamp-dark: #BE123C;
  --gold: #FBBF24;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 16px;
}

/* Theme definitions */
[data-theme="blue"] {
  --theme-rgb: 59, 130, 246;
  --theme-glow-rgb: 139, 92, 246;
}
[data-theme="purple"] {
  --theme-rgb: 139, 92, 246;
  --theme-glow-rgb: 236, 72, 153;
}
[data-theme="teal"] {
  --theme-rgb: 20, 184, 166;
  --theme-glow-rgb: 59, 130, 246;
}
[data-theme="maroon"] {
  --theme-rgb: 159, 18, 57;
  --theme-glow-rgb: 225, 29, 72;
}
[data-theme="green"] {
  --theme-rgb: 34, 197, 94;
  --theme-glow-rgb: 20, 184, 166;
}
[data-theme="orange"] {
  --theme-rgb: 249, 115, 22;
  --theme-glow-rgb: 234, 179, 8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(var(--theme-rgb), 0.15), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(var(--theme-glow-rgb), 0.15), transparent 25%);
  background-attachment: fixed;
  font-family: 'Inter', sans-serif;
  color: var(--text-main);
  padding: 48px 20px 64px;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
}

/* Header */
.header {
  text-align: center;
  margin-bottom: 36px;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 10px;
}

.title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(36px, 7vw, 56px);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}

.sub {
  color: #9AA3AF;
  font-size: 13px;
  max-width: 420px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===== Auth screen ===== */
.auth-wrap {
  max-width: 420px;
}

.auth-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  color: var(--text-main);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  background: rgba(0,0,0,0.2);
  padding: 6px;
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
}

.auth-tab {
  flex: 1;
  background: transparent;
  border: none;
  padding: 10px 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--text-dim);
  cursor: pointer;
  border-radius: calc(var(--radius) - 4px);
  transition: all 0.2s ease;
}

.auth-tab.active {
  background: var(--accent-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(var(--theme-rgb), 0.3);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
}

.auth-form input, .auth-form select {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  padding: 12px 16px;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.15);
  color: var(--text-main);
  transition: all 0.2s ease;
}

.auth-form select option {
  background: var(--bg-dark);
  color: var(--text-main);
}

.auth-form input:focus, .auth-form select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(var(--theme-rgb), 0.2);
}

.auth-hint {
  font-size: 12px;
  color: var(--text-dim);
  margin: -6px 0 0;
}

.auth-submit {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-glow));
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 14px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  margin-top: 10px;
}

.auth-submit:hover { 
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}
.auth-submit:active {
  transform: translateY(1px);
  box-shadow: 0 2px 0 var(--stamp-dark);
}

.auth-error {
  min-height: 16px;
  color: var(--stamp);
  font-size: 12px;
  margin: 14px 0 0;
  text-align: center;
}

/* ===== App Navbar ===== */
.app-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  margin-bottom: 32px;
  background: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  border-radius: var(--radius);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-logo {
  font-size: 20px;
}

.navbar-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.user-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-chip {
  background: linear-gradient(135deg, rgba(var(--theme-rgb), 0.2), rgba(var(--theme-glow-rgb), 0.2));
  color: var(--text-main);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(var(--theme-rgb), 0.3);
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s ease;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}

.logout-btn {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-dim);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.logout-btn:hover {
  border-color: var(--stamp);
  color: var(--stamp);
  background: rgba(244, 63, 94, 0.1);
}

/* ===== Theme Picker ===== */
.theme-picker {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.theme-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}
.theme-btn:hover {
  transform: scale(1.1);
}
.theme-btn.active {
  border-color: #fff;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

/* Theme Button Colors */
.theme-btn[data-theme-val="blue"] { background: rgb(59, 130, 246); }
.theme-btn[data-theme-val="purple"] { background: rgb(139, 92, 246); }
.theme-btn[data-theme-val="teal"] { background: rgb(20, 184, 166); }
.theme-btn[data-theme-val="maroon"] { background: rgb(159, 18, 57); }
.theme-btn[data-theme-val="green"] { background: rgb(34, 197, 94); }
.theme-btn[data-theme-val="orange"] { background: rgb(249, 115, 22); }
.theme-btn[data-theme-val="dark"] { background: rgb(71, 85, 105); }

/* Settings Modal Adjustments */
.settings-section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  color: var(--text-dim);
  margin: 0 0 8px 0;
  text-align: left;
}

/* Stamp panel */
.stamp-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  color: var(--text-main);
  border-radius: var(--radius);
  padding: 32px;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 32px;
  align-items: center;
  box-shadow: var(--glass-shadow);
  border: 1px solid var(--glass-border);
}

.stamp-btn {
  background: linear-gradient(135deg, var(--accent-primary), #8B5CF6);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 24px 16px;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  text-align: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.stamp-btn:hover { 
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 32px rgba(99, 102, 241, 0.5);
}
.stamp-btn:active {
  transform: translateY(2px) scale(0.98);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

.stamp-btn:disabled {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.3);
  box-shadow: none;
  cursor: default;
  transform: none;
}

.stamp-btn-label {
  font-weight: 700;
  font-size: 18px;
}

.stamp-btn-sub {
  font-size: 13px;
  opacity: 0.8;
  font-family: 'Inter', sans-serif;
}

.progress-block { min-width: 0; }

.progress-numbers {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}

.progress-percent {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 36px;
  background: linear-gradient(135deg, #60A5FA, #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.progress-fraction {
  font-size: 13px;
  color: var(--text-dim);
}

.progress-track {
  height: 12px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #60A5FA, #A78BFA);
  box-shadow: 0 0 10px rgba(167, 139, 250, 0.5);
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-note {
  font-size: 13px;
  color: var(--text-dim);
  margin: 10px 0 0;
  line-height: 1.5;
}

/* Ledger */
.ledger {
  margin-top: 32px;
}

.ledger-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.ledger-head h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #9AA3AF;
  margin: 0;
}

.reset-btn {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-dim);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.reset-btn:hover {
  border-color: var(--stamp);
  color: var(--stamp);
  background: rgba(244, 63, 94, 0.1);
}

/* Calendar month navigator */
.calendar-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 12px 20px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.cal-month-label {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.cal-nav-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  font-size: 20px;
  line-height: 1;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.cal-nav-btn:hover:not(:disabled) {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.cal-nav-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

.grid {
  background: transparent;
  padding: 0;
  border: none;
}

.month-block {
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.month-header {
  margin: 0 0 20px;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text-main);
  font-size: 24px;
  text-align: center;
}

.week-days {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.month-legend {
  margin-top: 24px;
  padding: 16px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-dim);
}

.month-legend p {
  margin: 4px 0;
  font-weight: 500;
}

.day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-main);
  cursor: default;
  position: relative;
  transition: all 0.2s ease;
  user-select: none;
}

.day.empty {
  background: transparent;
  border: none;
  pointer-events: none;
}

.day.disabled {
  background: rgba(0, 0, 0, 0.2);
  color: rgba(255, 255, 255, 0.2);
  border-color: transparent;
  cursor: default;
}

.day.libur {
  background: rgba(244, 63, 94, 0.1);
  color: var(--stamp);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.cal-date {
  font-size: 15px;
  font-weight: 600;
}

.cal-badge {
  font-size: 10px;
  background: var(--accent-primary);
  color: #fff;
  padding: 2px 6px;
  border-radius: 4px;
}

.cal-label {
  font-size: 9px;
  text-transform: uppercase;
  font-weight: 600;
  text-align: center;
  line-height: 1.1;
  padding: 0 2px;
  word-break: break-word;
  overflow-wrap: break-word;
}

.day.done {
  background: rgba(59, 130, 246, 0.1);
  color: transparent;
  border: 1px solid var(--accent-primary);
  box-shadow: inset 0 0 12px rgba(59, 130, 246, 0.2);
}

.day.done .cal-date, .day.done .cal-badge {
  opacity: 0;
}

.day.done::after {
  content: "✓";
  position: absolute;
  color: var(--accent-glow);
  font-weight: 600;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-shadow: 0 0 8px rgba(96, 165, 250, 0.6);
}

.footer {
  text-align: center;
  margin-top: 40px;
  color: #5B6672;
  font-size: 11px;
  letter-spacing: 0.04em;
}

@media (max-width: 560px) {
  .stamp-panel {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--paper-dim);
  border-top-color: var(--stamp);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Form Additions ===== */
.link-btn {
  background: none;
  border: none;
  color: var(--stamp);
  font-size: 11px;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  font-family: 'Space Grotesk', sans-serif;
}
.link-btn:hover { color: var(--stamp-dark); }

.pwd-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.pwd-wrapper input {
  width: 100%;
  padding-right: 40px;
}
.eye-btn {
  position: absolute;
  right: 8px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
  opacity: 0.6;
  padding: 4px;
  transition: opacity 0.2s;
}
.eye-btn:hover { opacity: 1; }

.pwd-criteria {
  margin: -2px 0 0;
  padding: 0;
  list-style: none;
  font-size: 11px;
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.pwd-criteria li {
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s ease;
}
.pwd-criteria li::before {
  content: '○';
  font-size: 10px;
}
.pwd-criteria li.valid {
  color: #2F8A4E;
}
.pwd-criteria li.valid::before {
  content: '✓';
  font-weight: bold;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal-content {
  background: var(--paper);
  color: var(--ink);
  width: 90%;
  max-width: 400px;
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--line);
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.8);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.modal-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  margin: 0;
  font-size: 20px;
}
.close-modal-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
  color: var(--ink-soft);
}
.close-modal-btn:hover { color: var(--stamp); }

.settings-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  background: var(--paper-dim);
  padding: 4px;
  border-radius: var(--radius);
}
.settings-tab {
  flex: 1;
  background: none;
  border: none;
  padding: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 3px;
}
.settings-tab.active {
  background: var(--ink);
  color: var(--paper);
}

.danger-text {
  font-size: 12px;
  color: var(--stamp);
  margin: 0 0 10px;
  line-height: 1.4;
  font-weight: 600;
}
.danger-btn {
  background: var(--stamp) !important;
}
.icon-btn {
  background: none;
  border: 1px solid #3A4657;
  color: #9AA3AF;
  font-size: 12px;
  padding: 5px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s ease;
}
.icon-btn:hover {
  background: var(--ink);
  color: var(--paper);
}

/* ===== Responsiveness (Mobile) ===== */
@media (max-width: 600px) {
  .stamp-panel {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 16px;
    padding: 20px;
  }
  .month-block {
    padding: 16px;
  }
  .day {
    gap: 2px;
  }
  .cal-date {
    font-size: 13px;
  }
  .cal-badge {
    font-size: 9px;
    padding: 2px 4px;
  }
  .cal-label {
    font-size: 8px;
  }
}