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

:root {
   --bg: #0f1117;
   --surface: #1a1d27;
   --surface2: #242836;
   --surface3: #2e3345;
   --accent: #6c5ce7;
   --accent2: #a29bfe;
   --accent-glow: rgba(108, 92, 231, .25);
   --green: #00b894;
   --red: #ff6b6b;
   --yellow: #fdcb6e;
   --orange: #e17055;
   --text: #e8e8f0;
   --text2: #9ca0b0;
   --text3: #6b6f82;
   --radius: 12px;
   --radius-sm: 8px;
   --shadow: 0 4px 24px rgba(0, 0, 0, .3);
   --transition: all .25s cubic-bezier(.4, 0, .2, 1)
}

body {
   font-family: 'Inter', sans-serif;
   background: var(--bg);
   color: var(--text);
   min-height: 100vh;
   display: flex;
   flex-direction: column;
   align-items: center;
   width: 100%
}

/* ═══════════════════════════════════════════
   LOGIN OVERLAY
   ═══════════════════════════════════════════ */
.login-overlay {
   position: fixed;
   inset: 0;
   z-index: 500;
   display: flex;
   align-items: center;
   justify-content: center;
   background: linear-gradient(135deg, #0f1117 0%, #1a1030 50%, #0f1117 100%);
   animation: loginBg 8s ease infinite
}

@keyframes loginBg {

   0%,
   100% {
      background-position: 0% 50%
   }

   50% {
      background-position: 100% 50%
   }
}

.login-card {
   background: rgba(26, 29, 39, .85);
   backdrop-filter: blur(24px);
   border: 1px solid var(--surface3);
   border-radius: var(--radius);
   padding: 40px 36px;
   width: 90%;
   max-width: 380px;
   box-shadow: 0 8px 40px rgba(0, 0, 0, .5), 0 0 80px rgba(108, 92, 231, .08);
   text-align: center;
   animation: loginSlide .5s ease
}

@keyframes loginSlide {
   from {
      opacity: 0;
      transform: translateY(20px)
   }

   to {
      opacity: 1;
      transform: translateY(0)
   }
}

.login-icon {
   font-size: 3rem;
   margin-bottom: 8px
}

.login-card h2 {
   font-size: 1.4rem;
   font-weight: 700;
   background: linear-gradient(135deg, var(--accent2), var(--accent));
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   margin-bottom: 4px
}

.login-subtitle {
   font-size: .82rem;
   color: var(--text3);
   margin-bottom: 24px
}

.login-field {
   text-align: left;
   margin-bottom: 16px
}

.login-field label {
   display: block;
   font-size: .75rem;
   font-weight: 600;
   color: var(--text2);
   text-transform: uppercase;
   letter-spacing: .5px;
   margin-bottom: 6px
}

.login-field input {
   width: 100%;
   padding: 12px 16px;
   background: var(--surface2);
   border: 1px solid var(--surface3);
   border-radius: var(--radius-sm);
   color: var(--text);
   font-size: .9rem;
   font-family: inherit;
   transition: var(--transition);
   outline: none
}

.login-field input:focus {
   border-color: var(--accent);
   box-shadow: 0 0 0 3px var(--accent-glow)
}

.login-btn {
   width: 100%;
   padding: 14px;
   font-size: .95rem;
   margin-top: 8px
}

.login-error {
   margin-top: 14px;
   font-size: .82rem;
   color: var(--red);
   min-height: 20px
}

/* ═══════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════ */
.header {
   width: 100%;
   padding: 20px 0;
   text-align: center;
   background: linear-gradient(135deg, var(--surface) 0%, var(--surface2) 100%);
   border-bottom: 1px solid var(--surface3);
   position: sticky;
   top: 0;
   z-index: 100;
   backdrop-filter: blur(12px)
}

.header-inner {
   max-width: 1200px;
   margin: 0 auto;
   padding: 0 24px;
   display: flex;
   align-items: center;
   justify-content: space-between
}

.header h1 {
   font-size: 1.5rem;
   font-weight: 700;
   background: linear-gradient(135deg, var(--accent2), var(--accent));
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent
}

.header p {
   font-size: .82rem;
   color: var(--text2);
   margin-top: 4px
}

.container {
   width: 100%;
   max-width: 1200px;
   margin: 0 auto;
   padding: 24px 24px 60px
}

/* ── Tabs ─────────────────────────── */
.tabs {
   display: flex;
   gap: 4px;
   margin-bottom: 24px;
   background: var(--surface);
   padding: 5px;
   border-radius: var(--radius);
   border: 1px solid var(--surface3);
   flex-wrap: wrap
}

.tab {
   flex: 1;
   min-width: 70px;
   padding: 9px 6px;
   text-align: center;
   border-radius: var(--radius-sm);
   cursor: pointer;
   font-size: .72rem;
   font-weight: 500;
   color: var(--text2);
   transition: var(--transition);
   border: none;
   background: none;
   user-select: none;
   white-space: nowrap
}

.tab:hover {
   color: var(--text);
   background: var(--surface2)
}

.tab.active {
   background: var(--accent);
   color: #fff;
   box-shadow: 0 2px 12px var(--accent-glow)
}

.panel {
   display: none;
   animation: fadeIn .3s ease
}

.panel.active {
   display: block
}

@keyframes fadeIn {
   from {
      opacity: 0;
      transform: translateY(8px)
   }

   to {
      opacity: 1;
      transform: translateY(0)
   }
}

/* ── Card ─────────────────────────── */
.card {
   background: var(--surface);
   border: 1px solid var(--surface3);
   border-radius: var(--radius);
   padding: 24px;
   margin-bottom: 16px;
   box-shadow: var(--shadow)
}

.card-title {
   font-size: 1rem;
   font-weight: 600;
   margin-bottom: 16px;
   color: var(--accent2)
}

/* ── Form ─────────────────────────── */
.form-grid {
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 14px
}

.form-group {
   display: flex;
   flex-direction: column;
   gap: 5px
}

.form-group.full {
   grid-column: 1/-1
}

.form-group label {
   font-size: .78rem;
   font-weight: 500;
   color: var(--text2);
   text-transform: uppercase;
   letter-spacing: .5px
}

.form-group input,
.form-group select {
   padding: 10px 14px;
   background: var(--surface2);
   border: 1px solid var(--surface3);
   border-radius: var(--radius-sm);
   color: var(--text);
   font-size: .9rem;
   font-family: inherit;
   transition: var(--transition);
   outline: none
}

.form-group input:focus,
.form-group select:focus {
   border-color: var(--accent);
   box-shadow: 0 0 0 3px var(--accent-glow)
}

.form-group select option {
   background: var(--surface2);
   color: var(--text)
}

.slot-select {
   padding: 8px 14px;
   background: var(--surface2);
   border: 1px solid var(--surface3);
   border-radius: var(--radius-sm);
   color: var(--text);
   font-size: .85rem;
   font-family: inherit;
   outline: none;
   transition: var(--transition)
}

.slot-select:focus {
   border-color: var(--accent)
}

/* ── Buttons ──────────────────────── */
.btn {
   padding: 10px 20px;
   border: none;
   border-radius: var(--radius-sm);
   font-size: .85rem;
   font-weight: 600;
   font-family: inherit;
   cursor: pointer;
   transition: var(--transition);
   display: inline-flex;
   align-items: center;
   gap: 6px
}

.btn-primary {
   background: linear-gradient(135deg, var(--accent), #7c6cf0);
   color: #fff;
   box-shadow: 0 2px 12px var(--accent-glow)
}

.btn-primary:hover {
   transform: translateY(-1px);
   box-shadow: 0 4px 20px var(--accent-glow)
}

.btn-expense {
   background: linear-gradient(135deg, var(--orange), #e76f51);
   color: #fff;
   box-shadow: 0 2px 12px rgba(225, 112, 85, .25)
}

.btn-expense:hover {
   transform: translateY(-1px);
   box-shadow: 0 4px 20px rgba(225, 112, 85, .35)
}

.btn-success {
   background: var(--green);
   color: #fff
}

.btn-danger {
   background: var(--red);
   color: #fff;
   font-size: .76rem;
   padding: 6px 10px
}

.btn-outline {
   background: transparent;
   border: 1px solid var(--surface3);
   color: var(--text2)
}

.btn-outline:hover {
   border-color: var(--accent);
   color: var(--accent)
}

.btn-sm {
   font-size: .76rem;
   padding: 6px 10px
}

.btn-row {
   display: flex;
   gap: 8px;
   margin-top: 18px
}

/* ── Toast ────────────────────────── */
.toast {
   position: fixed;
   top: 20px;
   right: 20px;
   padding: 14px 22px;
   border-radius: var(--radius-sm);
   color: #fff;
   font-size: .85rem;
   font-weight: 500;
   z-index: 1000;
   opacity: 0;
   transform: translateX(40px);
   transition: var(--transition);
   pointer-events: none
}

.toast.show {
   opacity: 1;
   transform: translateX(0)
}

.toast.success {
   background: var(--green)
}

.toast.error {
   background: var(--red)
}

/* ── Filter ──────────────────────── */
.filter-bar {
   display: flex;
   gap: 10px;
   align-items: center;
   flex-wrap: wrap;
   margin-bottom: 16px
}

.filter-bar input[type="month"] {
   padding: 8px 12px;
   background: var(--surface2);
   border: 1px solid var(--surface3);
   border-radius: var(--radius-sm);
   color: var(--text);
   font-family: inherit;
   font-size: .85rem;
   outline: none;
   transition: var(--transition)
}

.filter-bar input[type="month"]:focus {
   border-color: var(--accent)
}

/* ── Table ────────────────────────── */
.table-wrap {
   overflow-x: auto;
   border-radius: var(--radius-sm)
}

table {
   width: 100%;
   border-collapse: collapse;
   font-size: .82rem
}

thead {
   background: var(--surface2)
}

th {
   padding: 12px;
   text-align: left;
   font-weight: 600;
   color: var(--text2);
   font-size: .74rem;
   text-transform: uppercase;
   letter-spacing: .5px;
   white-space: nowrap
}

td {
   padding: 10px 12px;
   border-top: 1px solid var(--surface3);
   white-space: nowrap
}

tr {
   transition: var(--transition)
}

tbody tr:hover {
   background: var(--surface2)
}

.badge {
   display: inline-block;
   padding: 3px 10px;
   border-radius: 20px;
   font-size: .72rem;
   font-weight: 600;
   text-transform: uppercase
}

.badge-cash {
   background: rgba(253, 203, 110, .12);
   color: var(--yellow)
}

.badge-upi {
   background: rgba(108, 92, 231, .15);
   color: var(--accent2)
}

.badge-card {
   background: rgba(162, 155, 254, .12);
   color: var(--accent2)
}

.action-btns {
   display: flex;
   gap: 5px
}

.empty-state {
   text-align: center;
   padding: 40px;
   color: var(--text3);
   font-size: .9rem
}

/* ── P&L Cards ────────────────────── */
.pl-grid {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 14px;
   margin-top: 16px
}

.pl-card {
   padding: 22px;
   border-radius: var(--radius);
   text-align: center;
   border: 1px solid var(--surface3)
}

.pl-card.income {
   background: linear-gradient(135deg, rgba(0, 184, 148, .08), rgba(0, 184, 148, .02))
}

.pl-card.expense {
   background: linear-gradient(135deg, rgba(255, 107, 107, .08), rgba(255, 107, 107, .02))
}

.pl-card.profit {
   background: linear-gradient(135deg, rgba(108, 92, 231, .08), rgba(108, 92, 231, .02))
}

.pl-label {
   font-size: .74rem;
   text-transform: uppercase;
   letter-spacing: .5px;
   color: var(--text2);
   font-weight: 600
}

.pl-sublabel {
   font-size: .7rem;
   color: var(--text3);
   margin-top: 2px
}

.pl-value {
   font-size: 1.5rem;
   font-weight: 700;
   margin-top: 8px
}

.pl-card.income .pl-value {
   color: var(--green)
}

.pl-card.expense .pl-value {
   color: var(--red)
}

.pl-card.profit .pl-value {
   color: var(--accent2)
}

.pl-card.profit .pl-value.negative {
   color: var(--red)
}

/* ── Modal ────────────────────────── */
.modal-overlay {
   position: fixed;
   inset: 0;
   background: rgba(0, 0, 0, .6);
   z-index: 200;
   display: flex;
   align-items: center;
   justify-content: center;
   opacity: 0;
   pointer-events: none;
   transition: var(--transition)
}

.modal-overlay.show {
   opacity: 1;
   pointer-events: all
}

.modal {
   background: var(--surface);
   border: 1px solid var(--surface3);
   border-radius: var(--radius);
   padding: 28px;
   width: 90%;
   max-width: 480px;
   box-shadow: var(--shadow);
   transform: scale(.95);
   transition: var(--transition)
}

.modal-overlay.show .modal {
   transform: scale(1)
}

.modal h3 {
   font-size: 1rem;
   margin-bottom: 16px;
   color: var(--accent2)
}

/* ═══════════════════════════════════════════
   SEAT MAP
   ═══════════════════════════════════════════ */
.seat-legend {
   display: flex;
   gap: 20px;
   margin-bottom: 16px;
   font-size: .82rem;
   color: var(--text2)
}

.seat-legend-item {
   display: flex;
   align-items: center;
   gap: 6px
}

.seat-legend-dot {
   width: 16px;
   height: 16px;
   border-radius: 4px
}

.seat-legend-dot.available {
   background: var(--green)
}

.seat-legend-dot.occupied {
   background: var(--red)
}

.seat-map-container {
   overflow-x: auto;
   padding: 8px 0
}

.seat-row {
   display: flex;
   align-items: center;
   gap: 6px;
   margin-bottom: 6px
}

.seat-row-label {
   width: 32px;
   text-align: center;
   font-weight: 700;
   color: var(--accent2);
   font-size: .88rem;
   flex-shrink: 0
}

.seat-cell {
   width: 52px;
   height: 48px;
   border-radius: var(--radius-sm);
   display: flex;
   flex-direction: column;
   align-items: center;
   justify-content: center;
   font-size: .7rem;
   font-weight: 600;
   cursor: pointer;
   transition: var(--transition);
   border: 2px solid transparent;
   flex-shrink: 0
}

.seat-cell:hover {
   transform: scale(1.1);
   z-index: 2;
   box-shadow: 0 4px 16px rgba(0, 0, 0, .3)
}

.seat-cell.available {
   background: rgba(0, 184, 148, .1);
   color: var(--green);
   border-color: rgba(0, 184, 148, .25)
}

.seat-cell.available:hover {
   background: rgba(0, 184, 148, .2);
   border-color: var(--green)
}

.seat-cell.occupied {
   background: rgba(255, 107, 107, .1);
   color: var(--red);
   border-color: rgba(255, 107, 107, .25)
}

.seat-cell.occupied:hover {
   background: rgba(255, 107, 107, .2);
   border-color: var(--red)
}

.seat-cell .seat-num {
   font-size: .72rem;
   font-weight: 700
}

.seat-cell .seat-occupant {
   font-size: .58rem;
   max-width: 46px;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
   opacity: .8
}

/* ═══════════════════════════════════════════
   STUDENT RESULT CARD (Allocation flow)
   ═══════════════════════════════════════════ */
.student-found {
   background: rgba(0, 184, 148, .08);
   border: 1px solid rgba(0, 184, 148, .25);
   border-radius: var(--radius-sm);
   padding: 14px 18px;
   display: flex;
   align-items: center;
   gap: 12px
}

.student-found .sf-icon {
   font-size: 1.4rem
}

.student-found .sf-info {
   flex: 1
}

.student-found .sf-name {
   font-weight: 600;
   color: var(--green)
}

.student-found .sf-mobile {
   font-size: .82rem;
   color: var(--text2)
}

.student-notfound {
   background: rgba(253, 203, 110, .08);
   border: 1px solid rgba(253, 203, 110, .25);
   border-radius: var(--radius-sm);
   padding: 18px
}

.student-notfound .snf-title {
   font-weight: 600;
   color: var(--yellow);
   margin-bottom: 12px;
   font-size: .9rem
}

/* ═══════════════════════════════════════════
   NAME SEARCH RESULTS (clickable list)
   ═══════════════════════════════════════════ */
.name-result-list {
   background: var(--surface2);
   border: 1px solid var(--surface3);
   border-radius: var(--radius-sm);
   overflow: hidden
}

.nrl-title {
   padding: 10px 14px;
   font-size: .78rem;
   font-weight: 600;
   color: var(--text2);
   text-transform: uppercase;
   letter-spacing: .5px;
   border-bottom: 1px solid var(--surface3)
}

.name-result-item {
   padding: 10px 14px;
   cursor: pointer;
   transition: var(--transition);
   font-size: .85rem;
   border-bottom: 1px solid var(--surface3);
   display: flex;
   align-items: center;
   gap: 8px
}

.name-result-item:last-child {
   border-bottom: none
}

.name-result-item:hover {
   background: var(--accent-glow);
   color: var(--accent2)
}

/* ═══════════════════════════════════════════
   MOBILE BOTTOM NAV
   ═══════════════════════════════════════════ */
.mobile-nav {
   display: none
}

@media(max-width:768px) {
   .form-grid {
      grid-template-columns: 1fr
   }

   .pl-grid {
      grid-template-columns: 1fr
   }

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

   .seat-cell {
      width: 42px;
      height: 40px
   }

   .seat-cell .seat-num {
      font-size: .64rem
   }

   .seat-cell .seat-occupant {
      display: none
   }

   .header-inner {
      flex-direction: column;
      gap: 10px
   }

   .header h1 {
      font-size: 1.15rem
   }

   .login-card {
      padding: 28px 20px
   }

   /* Hide original horizontal tabs on mobile */
   .tabs {
      display: none
   }

   /* Show mobile bottom nav */
   .mobile-nav {
      display: flex;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 150;
      background: var(--surface);
      border-top: 1px solid var(--surface3);
      padding: 0;
      justify-content: space-around;
      align-items: stretch;
      backdrop-filter: blur(16px);
      box-shadow: 0 -4px 24px rgba(0, 0, 0, .35)
   }

   .mobile-nav-btn {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 2px;
      padding: 8px 2px 10px;
      background: none;
      border: none;
      color: var(--text3);
      font-size: .6rem;
      font-family: inherit;
      font-weight: 500;
      cursor: pointer;
      transition: var(--transition);
      position: relative;
      -webkit-tap-highlight-color: transparent
   }

   .mobile-nav-btn .nav-icon {
      font-size: 1.25rem;
      line-height: 1;
      transition: var(--transition)
   }

   .mobile-nav-btn .nav-label {
      font-size: .55rem;
      letter-spacing: .3px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 56px
   }

   .mobile-nav-btn.active {
      color: var(--accent2)
   }

   .mobile-nav-btn.active .nav-icon {
      transform: scale(1.15)
   }

   .mobile-nav-btn.active::before {
      content: '';
      position: absolute;
      top: 0;
      left: 20%;
      right: 20%;
      height: 3px;
      background: var(--accent);
      border-radius: 0 0 4px 4px
   }

   .mobile-nav-btn:active {
      background: var(--surface2)
   }

   /* Extra bottom padding for content so it doesn't hide behind bottom nav */
   .container {
      padding-bottom: 90px
   }
}