/* ===== TOKENS ===== */
:root {
  --bg:      #0a0f1a;
  --bg2:     #0f1826;
  --bg3:     #141f30;
  --surface: #192336;
  --surface2:#1e2b3e;
  --border:  rgba(255,255,255,0.07);
  --border2: rgba(255,255,255,0.12);
  --gold:    #f0b429;
  --gold2:   #ffd166;
  --gold-dim: rgba(240,180,41,0.12);
  --green:   #06d6a0;
  --red:     #ef4565;
  --orange:  #f4a261;
  --text:    #e8eef6;
  --text2:   #7a91ab;
  --text3:   #4a617a;
  --radius:  14px;
  --radius-sm: 8px;
  --shadow:  0 8px 32px rgba(0,0,0,0.5);
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.3);
  --font-display: 'Syne', sans-serif;
  --font-body:    'Figtree', sans-serif;
  --nav-h: 62px;
  --header-h: 56px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-tap-highlight-color: transparent; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ===== SCREENS ===== */
.screen { display: none; }
.screen.active { display: block; }

/* ===== LOGIN ===== */
.login-bg {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.login-noise {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 128px;
}

.login-glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240,180,41,0.12) 0%, transparent 65%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.login-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 24px;
  padding: 48px 36px;
  text-align: center;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow), 0 0 0 1px rgba(240,180,41,0.05);
  animation: fadeUp 0.5s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.brand-icon {
  width: 72px; height: 72px;
  background: var(--gold-dim);
  border: 1px solid rgba(240,180,41,0.25);
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
}
.brand-emoji { font-size: 36px; }

.brand h1 {
  font-family: var(--font-display);
  font-size: 30px; font-weight: 800;
  color: var(--text); margin-bottom: 8px;
  line-height: 1.1; letter-spacing: -0.02em;
}
.brand p { color: var(--text2); font-size: 14px; margin-bottom: 36px; font-weight: 400; }

.btn-google {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 13px 20px;
  background: white; color: #1a1a1a; border: none; border-radius: 12px;
  font-family: var(--font-body); font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; box-shadow: 0 2px 8px rgba(0,0,0,0.25);
  letter-spacing: 0.01em;
}
.btn-google:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.35); }
.btn-google:active { transform: translateY(0); }

.login-note { margin-top: 16px; font-size: 12px; color: var(--text3); }

/* ===== HEADER ===== */
.app-header {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(12px);
}
.header-left {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700; letter-spacing: -0.01em;
}
.header-icon { font-size: 20px; }
.header-right { display: flex; align-items: center; gap: 10px; }
.user-avatar {
  width: 30px; height: 30px; border-radius: 50%;
  border: 2px solid var(--border2); display: none;
}
.user-name { color: var(--text2); font-size: 13px; font-weight: 500; }
.btn-logout {
  background: transparent; border: 1px solid var(--border2);
  color: var(--text2); width: 34px; height: 34px;
  border-radius: 10px; cursor: pointer; transition: all 0.2s;
  display: flex; align-items: center; justify-content: center;
}
.btn-logout:hover { border-color: var(--red); color: var(--red); }

/* ===== BOTTOM NAV ===== */
.app-nav {
  display: flex; justify-content: space-around;
  padding: 0; background: var(--bg2);
  border-top: 1px solid var(--border);
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 100; height: var(--nav-h);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.nav-btn {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 4px;
  background: transparent; border: none; color: var(--text3);
  font-family: var(--font-body); font-size: 10px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; padding: 8px 4px;
  text-transform: uppercase; letter-spacing: 0.05em; position: relative;
}
.nav-btn svg { transition: all 0.2s; }
.nav-btn:hover { color: var(--text2); }
.nav-btn.active { color: var(--gold); }
.nav-btn.active::before {
  content: '';
  position: absolute; top: 0; left: 50%;
  transform: translateX(-50%);
  width: 32px; height: 2px;
  background: var(--gold);
  border-radius: 0 0 3px 3px;
}
.nav-btn.active svg { filter: drop-shadow(0 0 6px rgba(240,180,41,0.4)); }

.hidden { display: none !important; }

/* ===== MAIN CONTENT ===== */
.app-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px;
  padding-bottom: calc(var(--nav-h) + 24px + env(safe-area-inset-bottom, 0px));
}
.tab { display: none; }
.tab.active { display: block; animation: fadeIn 0.25s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.tab-header { margin-bottom: 20px; }
.tab-header h2 {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 4px;
}
.tab-header p { color: var(--text2); font-size: 13px; }

/* ===== CALENDAR ===== */
.calendar-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.calendar-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border);
}
.cal-month-label {
  font-family: var(--font-display);
  font-size: 17px; font-weight: 700;
  letter-spacing: -0.01em;
}
.cal-nav-btn {
  background: var(--surface2); border: 1px solid var(--border2);
  color: var(--text); width: 36px; height: 36px;
  border-radius: 10px; cursor: pointer; transition: all 0.2s;
  display: flex; align-items: center; justify-content: center;
}
.cal-nav-btn:hover { border-color: var(--gold); color: var(--gold); background: var(--gold-dim); }
.cal-nav-btn:active { transform: scale(0.95); }

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}

.cal-day-header {
  text-align: center;
  padding: 10px 2px 8px;
  font-size: 11px; font-weight: 700;
  color: var(--text3); text-transform: uppercase; letter-spacing: 0.06em;
  background: var(--bg3);
}

.cal-day {
  min-height: 52px;
  padding: 6px 4px 4px;
  position: relative;
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  background: var(--surface);
  transition: background 0.15s;
}
.cal-day:nth-child(7n) { border-right: none; }

.cal-day.other-month { opacity: 0.3; }
.cal-day.today { background: rgba(240,180,41,0.04); }
.cal-day.today .cal-day-num {
  color: var(--gold);
  font-weight: 700;
  background: var(--gold-dim);
  border-radius: 6px;
  padding: 1px 5px;
  margin: -1px -3px;
  display: inline-block;
}

.cal-day-num {
  font-size: 12px;
  color: var(--text2);
  margin-bottom: 3px;
  font-weight: 500;
  display: block;
}

.cal-event {
  font-size: 9px;
  padding: 2px 5px;
  border-radius: 4px;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.4;
}
.cal-event.approved {
  background: rgba(6,214,160,0.15);
  color: var(--green);
  border-left: 2px solid var(--green);
}
.cal-event.pending {
  background: rgba(244,162,97,0.15);
  color: var(--orange);
  border-left: 2px solid var(--orange);
}

.calendar-legend {
  display: flex; align-items: center; gap: 20px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg3);
}
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text2); }
.legend-dot {
  width: 8px; height: 8px; border-radius: 50%;
  flex-shrink: 0;
}
.legend-dot.approved { background: var(--green); box-shadow: 0 0 6px rgba(6,214,160,0.5); }
.legend-dot.pending  { background: var(--orange); box-shadow: 0 0 6px rgba(244,162,97,0.5); }

.cal-tooltip {
  position: fixed;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 13px;
  z-index: 300;
  pointer-events: none;
  max-width: 240px;
  box-shadow: var(--shadow);
  line-height: 1.7;
}
.cal-tooltip strong { font-family: var(--font-display); font-size: 14px; }

/* ===== FORM ===== */
.res-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.form-group { margin-bottom: 16px; }
.form-row .form-group { margin-bottom: 0; }
.form-group label {
  display: block; font-size: 11px; font-weight: 700;
  color: var(--text2); text-transform: uppercase; letter-spacing: 0.07em;
  margin-bottom: 8px;
}
.req { color: var(--gold); }
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body); font-size: 14px;
  outline: none; transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(240,180,41,0.1);
}
.form-group textarea { resize: vertical; min-height: 80px; }
input[type="date"]::-webkit-calendar-picker-indicator { filter: invert(0.6); cursor: pointer; }
input[type="date"]::-webkit-inner-spin-button { display: none; }

.btn-primary {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--gold); color: var(--bg);
  border: none; padding: 13px 24px;
  border-radius: 12px;
  font-family: var(--font-body); font-size: 14px; font-weight: 700;
  cursor: pointer; transition: all 0.2s; margin-top: 4px;
  width: 100%; letter-spacing: 0.01em;
}
.btn-primary:hover { background: var(--gold2); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(240,180,41,0.3); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-secondary {
  background: transparent; border: 1px solid var(--border2);
  color: var(--text2); padding: 11px 20px;
  border-radius: 12px; font-family: var(--font-body);
  font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s;
}
.btn-secondary:hover { border-color: var(--text2); color: var(--text); }

.conflict-warning {
  background: rgba(239,69,101,0.08);
  border: 1px solid rgba(239,69,101,0.3);
  color: var(--red); padding: 12px 14px;
  border-radius: 10px; font-size: 13px; margin-bottom: 14px;
}
.form-success {
  background: rgba(6,214,160,0.08);
  border: 1px solid rgba(6,214,160,0.25);
  color: var(--green); padding: 14px 16px;
  border-radius: 10px; font-size: 14px; margin-top: 14px; font-weight: 500;
}
.form-error {
  background: rgba(239,69,101,0.08);
  border: 1px solid rgba(239,69,101,0.25);
  color: var(--red); padding: 14px 16px;
  border-radius: 10px; font-size: 14px; margin-top: 14px;
}

/* ===== REQUESTS LIST ===== */
.requests-list { display: flex; flex-direction: column; gap: 10px; }

.request-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: border-color 0.2s, transform 0.15s;
}
.request-card:hover { border-color: var(--border2); }

.req-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; margin-bottom: 10px; }
.req-title { font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: -0.01em; }
.req-meta { font-size: 12px; color: var(--text2); display: flex; flex-wrap: wrap; gap: 8px 14px; margin-bottom: 6px; }
.req-meta-item { display: flex; align-items: center; gap: 4px; }
.req-notes { font-size: 12px; color: var(--text3); font-style: italic; margin-top: 6px; line-height: 1.5; }
.req-footer { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

.status-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  white-space: nowrap;
}
.status-badge::before {
  content: '';
  width: 5px; height: 5px; border-radius: 50%;
  display: inline-block;
}
.status-badge.pending  { background: rgba(244,162,97,0.12); color: var(--orange); }
.status-badge.pending::before { background: var(--orange); box-shadow: 0 0 4px var(--orange); }
.status-badge.approved { background: rgba(6,214,160,0.12); color: var(--green); }
.status-badge.approved::before { background: var(--green); box-shadow: 0 0 4px var(--green); }
.status-badge.denied   { background: rgba(239,69,101,0.12); color: var(--red); }
.status-badge.denied::before { background: var(--red); }

.btn-approve {
  flex: 1;
  background: rgba(6,214,160,0.1); border: 1px solid rgba(6,214,160,0.3);
  color: var(--green); padding: 9px 14px; border-radius: 10px;
  font-size: 13px; font-weight: 700; cursor: pointer; transition: all 0.2s;
  font-family: var(--font-body); display: flex; align-items: center; justify-content: center; gap: 5px;
}
.btn-approve:hover { background: rgba(6,214,160,0.2); transform: translateY(-1px); }
.btn-approve:active { transform: translateY(0); }

.btn-deny {
  flex: 1;
  background: rgba(239,69,101,0.08); border: 1px solid rgba(239,69,101,0.25);
  color: var(--red); padding: 9px 14px; border-radius: 10px;
  font-size: 13px; font-weight: 700; cursor: pointer; transition: all 0.2s;
  font-family: var(--font-body); display: flex; align-items: center; justify-content: center; gap: 5px;
}
.btn-deny:hover { background: rgba(239,69,101,0.18); transform: translateY(-1px); }
.btn-deny:active { transform: translateY(0); }

/* ===== FILTER BUTTONS ===== */
.manage-filters { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.filter-btn {
  background: var(--surface2); border: 1px solid var(--border2);
  color: var(--text2); padding: 7px 16px; border-radius: 20px;
  font-size: 12px; font-weight: 700; cursor: pointer; transition: all 0.2s;
  font-family: var(--font-body); letter-spacing: 0.02em;
}
.filter-btn.active { background: var(--gold); color: var(--bg); border-color: var(--gold); }
.filter-btn:not(.active):hover { border-color: var(--border2); color: var(--text); }

/* ===== STATES ===== */
.loading {
  color: var(--text3); padding: 40px 0;
  text-align: center; font-size: 14px;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.spinner {
  width: 24px; height: 24px;
  border: 2px solid var(--border2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
  color: var(--text3); padding: 48px 0;
  text-align: center; font-size: 14px;
  background: var(--surface);
  border: 1px dashed var(--border2);
  border-radius: var(--radius);
}

/* ===== MODAL ===== */
.modal {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: flex-end; justify-content: center;
  padding: 0 0 env(safe-area-inset-bottom, 0px);
}
@media (min-width: 480px) {
  .modal { align-items: center; }
}
.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
}
.modal-box {
  position: relative;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 20px 20px 0 0;
  padding: 28px 24px 32px;
  width: 100%;
  box-shadow: var(--shadow);
  animation: slideUp 0.25s ease;
}
@media (min-width: 480px) {
  .modal-box {
    border-radius: 20px;
    max-width: 420px;
    animation: zoomIn 0.2s ease;
  }
}
@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
@keyframes zoomIn {
  from { transform: scale(0.96); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
.modal-box h3 {
  font-family: var(--font-display);
  font-size: 19px; font-weight: 700; margin-bottom: 10px; letter-spacing: -0.01em;
}
#modal-body { color: var(--text2); font-size: 14px; margin-bottom: 24px; line-height: 1.6; }
#modal-body strong { color: var(--text); }
.modal-actions { display: flex; gap: 10px; }
.modal-actions .btn-secondary { flex: 0 0 auto; }
.modal-actions .btn-primary { flex: 1; }

/* ===== DESKTOP ADJUSTMENTS ===== */
@media (min-width: 640px) {
  .app-nav {
    position: static;
    border-top: none;
    border-bottom: 1px solid var(--border);
    height: auto;
    padding: 0 20px;
    justify-content: flex-start;
    gap: 0;
  }
  .nav-btn {
    flex-direction: row; gap: 6px;
    font-size: 13px; padding: 14px 18px;
    text-transform: none; letter-spacing: normal;
    border-bottom: 2px solid transparent;
    border-radius: 0;
  }
  .nav-btn.active::before { display: none; }
  .nav-btn.active {
    border-bottom-color: var(--gold);
    background: transparent;
  }
  .app-main {
    padding-bottom: 40px;
  }
  .calendar-grid { /* slightly taller cells on desktop */ }
  .cal-day { min-height: 72px; }
  .cal-event { font-size: 11px; }
  .user-name { display: block; }
}

@media (min-width: 640px) {
  .app-header { padding: 0 28px; }
  .app-main { padding: 32px 28px 40px; }
}