/* ══════════════════════════════════════════════════════════════
   Firm2B — Premium GST Practice OS
   Inter + Plus Jakarta Sans | Indigo-Violet | Modern & Animated
   ══════════════════════════════════════════════════════════════ */
:root {
  /* ─── Surface & Background ──────────── */
  --bg: #f4f6fb;
  --surface: #f6f8fd;
  --surface-dim: #c8d3ea;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #eef2fb;
  --surface-container: #e6ecf7;
  --surface-container-high: #dde4f2;
  --surface-container-highest: #d4dcee;
  --surface-variant: #d4dcee;

  /* ─── Primary (Indigo-Violet) ──────────── */
  --primary: #4f46e5;
  --primary-container: #6366f1;
  --on-primary: #ffffff;
  --on-primary-container: #eef0ff;
  --primary-fixed: #e0e0ff;

  /* ─── Secondary ──────────── */
  --secondary: #7c3aed;
  --secondary-container: #8b5cf6;
  --on-secondary: #ffffff;
  --on-secondary-container: #faf5ff;
  --secondary-fixed: #ede9fe;

  /* ─── Tertiary ──────────── */
  --tertiary: #0891b2;
  --tertiary-container: #06b6d4;

  /* ─── Error ──────────── */
  --error: #dc2626;
  --error-container: #fecaca;
  --on-error: #ffffff;

  /* ─── Text ──────────── */
  --on-surface: #111827;
  --on-surface-variant: #4b5563;
  --on-background: #111827;
  --text-1: #111827;
  --text-2: #4b5563;
  --text-3: #9ca3af;

  /* ─── Outline ──────────── */
  --outline: #9ca3af;
  --outline-variant: #e5e7eb;
  --border: #e5e7eb;

  /* ─── Inverse ──────────── */
  --inverse-surface: #1e1b4b;
  --inverse-on-surface: #eef2ff;

  /* ─── Semantic ──────────── */
  --green: #059669;
  --green-bg: #ecfdf5;
  --red: #dc2626;
  --red-bg: #fef2f2;
  --amber: #d97706;
  --amber-bg: #fffbeb;
  --blue: #2563eb;
  --blue-bg: #eff6ff;
  --orange: #ea580c;
  --orange-bg: #fff7ed;

  /* ─── Aliases for new components ──────────── */
  --bg-1: #ffffff;
  --bg-2: #f1f5f9;

  /* ─── Spacing ──────────── */
  --sb-w: 280px;
  --bottom-nav-h: 72px;
  --top-bar-h: 56px;

  /* ─── Radius ──────────── */
  --r: 12px;
  --r-sm: 8px;
  --r-full: 9999px;

  /* ─── Shadows ──────────── */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.06), 0 2px 4px -2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.06), 0 4px 6px -4px rgba(0,0,0,0.04);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--on-surface);
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}
.hidden { display: none !important; }

/* ═══ GLOBAL ANIMATIONS ═══════════════════════════════════ */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.7; } }
@keyframes gradientShift { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }

/* ═══ TYPOGRAPHY ═══════════════════════════════════════════ */
.font-headline { font-family: 'Plus Jakarta Sans', sans-serif; }
h1, h2, h3, .card-title, .section-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
}

/* ═══ AUTH SCREENS ════════════════════════════════════════ */
.auth-wrapper {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--surface-container-low), var(--surface));
  padding: 16px;
}
.auth-card {
  background: var(--surface-container-lowest); border: 1px solid var(--outline-variant);
  border-radius: 20px; padding: 36px; width: 100%; max-width: 420px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
}
.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-logo h1 { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 28px; font-weight: 700; color: var(--primary); }
.auth-logo p { font-size: 14px; color: var(--on-surface-variant); margin-top: 4px; }
.auth-tabs { display: flex; gap: 4px; margin-bottom: 20px; background: var(--surface-container); border-radius: var(--r-full); padding: 4px; }
.auth-tab { flex: 1; padding: 10px; text-align: center; border-radius: var(--r-full); font-size: 14px; font-weight: 500; cursor: pointer; border: none; background: transparent; color: var(--on-surface-variant); transition: all .2s; }
.auth-tab.active { background: var(--secondary-container); color: var(--on-secondary-container); font-weight: 600; }
.auth-footer { text-align: center; margin-top: 16px; font-size: 13px; color: var(--on-surface-variant); }
.auth-link { color: var(--primary); cursor: pointer; font-weight: 500; }
.trust-text { text-align: center; margin-top: 20px; font-size: 12px; color: var(--on-surface-variant); }
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 16px 0; font-size: 12px; color: var(--on-surface-variant); }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--outline-variant); }

/* ─── Form ──────────── */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--on-surface-variant); margin-bottom: 6px; }
.form-input {
  width: 100%; padding: 12px 14px; border: 1px solid var(--outline-variant); border-radius: var(--r);
  font-size: 14px; background: var(--surface-container-lowest); color: var(--on-surface);
  outline: none; transition: border .2s, box-shadow .2s; font-family: inherit;
}
.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,74,198,0.08); }
.form-row { display: flex; gap: 12px; }

/* ─── Buttons ──────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 20px; border-radius: var(--r); font-size: 14px; font-weight: 600;
  border: none; cursor: pointer; transition: all .25s cubic-bezier(.4,0,.2,1); font-family: inherit; white-space: nowrap;
  position: relative; overflow: hidden;
}
.btn:active { transform: scale(0.96); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary-container), var(--primary));
  color: var(--on-primary);
  box-shadow: 0 2px 8px rgba(99,102,241,0.3), 0 1px 2px rgba(99,102,241,0.2);
}
.btn-primary:hover {
  box-shadow: 0 4px 20px rgba(99,102,241,0.4), 0 2px 4px rgba(99,102,241,0.2);
  transform: translateY(-1px);
}
.btn-secondary { background: var(--surface-container); color: var(--on-surface); border: 1px solid var(--outline-variant); }
.btn-secondary:hover { background: var(--surface-container-high); border-color: var(--primary); }
.btn-ghost { background: none; color: var(--primary); }
.btn-ghost:hover { background: rgba(99,102,241,0.06); }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; border-radius: 14px; }
.btn-block { width: 100%; }
.btn-google {
  width: 100%; padding: 12px; border: 1px solid var(--outline-variant); border-radius: var(--r);
  background: var(--surface-container-lowest); color: var(--on-surface); font-weight: 500;
  display: flex; align-items: center; justify-content: center; gap: 10px; cursor: pointer; font-size: 14px;
  transition: all .2s; font-family: inherit;
}
.btn-google:hover { background: var(--surface-container-low); border-color: var(--primary); }

/* ═══ PLANS SCREEN ═══ */
.plans-wrapper { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 24px; background: var(--surface); }
.plans-header { text-align: center; margin-bottom: 24px; }
.plans-header h2 { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 28px; font-weight: 700; }
.plans-header p { color: var(--on-surface-variant); font-size: 15px; margin-top: 8px; }

/* ═══ APP SHELL ══════════════════════════════════════════ */
.app-container { min-height: 100vh; position: relative; }

/* ─── Desktop Sidebar ──────────── */
.sidebar {
  width: var(--sb-w); height: 100vh;
  background: linear-gradient(180deg, #1e1b4b 0%, #312e81 50%, #1e1b4b 100%);
  box-shadow: 4px 0 32px rgba(30,27,75,0.15);
  position: fixed; left: 0; top: 0; z-index: 60;
  display: flex; flex-direction: column;
}
.sidebar-brand {
  padding: 20px 16px; border-bottom: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; gap: 12px;
}
.sidebar-brand .material-symbols-outlined { font-size: 28px; color: #a5b4fc; }
.sidebar-brand .name { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 20px; font-weight: 700; color: #e0e7ff; }
.sidebar-nav { flex: 1; padding: 8px; overflow-y: auto; margin-top: 8px; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 12px; padding: 11px 16px; margin: 2px 8px;
  border-radius: var(--r); font-size: 13px; color: rgba(255,255,255,0.6);
  transition: all .25s cubic-bezier(.4,0,.2,1); text-decoration: none;
}
.sidebar-nav a:hover { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.9); }
.sidebar-nav a.active {
  background: linear-gradient(135deg, rgba(99,102,241,0.3), rgba(139,92,246,0.2));
  color: #e0e7ff; font-weight: 600;
  box-shadow: 0 0 0 1px rgba(165,180,252,0.2);
}
.sidebar-nav a .material-symbols-outlined { font-size: 20px; }
.sidebar-footer {
  padding: 16px; border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; gap: 12px;
}
.user-card { display: flex; align-items: center; gap: 12px; flex: 1; }
.avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, #818cf8, #a78bfa);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px; overflow: hidden;
}
.user-info .name { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 14px; font-weight: 600; color: #e0e7ff; }
.user-info .meta { font-size: 12px; color: rgba(255,255,255,0.5); }

/* ─── Mobile Top Bar ──────────── */
.mobile-header {
  display: none; position: sticky; top: 0; z-index: 50;
  background: var(--surface); padding: 12px 16px;
  align-items: center; justify-content: space-between;
}
.mobile-header .left { display: flex; align-items: center; gap: 12px; }
.mobile-header .hamburger { background: none; border: none; cursor: pointer; padding: 4px; border-radius: var(--r-full); color: var(--on-surface); }
.mobile-header .hamburger:hover { background: var(--surface-variant); }
.mobile-header .brand-group { display: flex; align-items: center; gap: 8px; }
.mobile-header .brand-group .material-symbols-outlined { color: var(--primary); font-size: 24px; }
.mobile-header .brand-group span:last-child { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 18px; font-weight: 700; }
.mobile-header .user-avatar {
  width: 32px; height: 32px; border-radius: 50%; background: var(--primary-container);
  color: var(--on-primary-container); display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 12px;
}

/* ─── Sidebar Overlay ──────────── */
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 55; }
.sidebar-overlay.open { display: block; }

/* ─── Main Content ──────────── */
.main-content {
  margin-left: var(--sb-w); min-height: 100vh; padding: 24px 32px;
}

/* ─── Bottom Navigation (Mobile) ──────────── */
.bottom-nav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
  background: rgba(248,249,255,0.9); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--outline-variant); border-radius: 16px 16px 0 0;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.06); padding: 8px 16px;
  padding-bottom: max(8px, env(safe-area-inset-bottom));
  justify-content: space-around; align-items: center;
}
.bottom-nav a {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font-size: 11px; font-weight: 500; color: var(--on-surface-variant);
  text-decoration: none; padding: 4px 12px; transition: color .2s;
  letter-spacing: 0.05em;
}
.bottom-nav a.active { color: var(--primary); font-weight: 700; }
.bottom-nav a .material-symbols-outlined { font-size: 24px; }

/* ═══ TOPBAR (per page) ══════════════════════════════════ */
.topbar { margin-bottom: 20px; }
.topbar .breadcrumb { font-size: 14px; color: var(--on-surface-variant); margin-bottom: 2px; }
.topbar h2 { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 28px; font-weight: 700; letter-spacing: -0.02em; }
.topbar-right { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ═══ METRIC CARDS ═══════════════════════════════════════ */
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 20px; }
.stat-card {
  background: var(--surface-container-lowest); border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--r); padding: 16px; display: flex; flex-direction: column; gap: 12px;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  animation: fadeInUp .4s ease both;
}
.stat-card:nth-child(1) { animation-delay: 0s; }
.stat-card:nth-child(2) { animation-delay: .05s; }
.stat-card:nth-child(3) { animation-delay: .1s; }
.stat-card:nth-child(4) { animation-delay: .15s; }
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: rgba(99,102,241,0.2); }
.sc-icon {
  width: 40px; height: 40px; border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
}
.sc-icon .material-symbols-outlined { font-size: 22px; }
.sc-value { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 24px; font-weight: 700; line-height: 32px; }
.sc-label { font-size: 14px; color: var(--on-surface-variant); }

/* ═══ CARDS ═════════════════════════════════════════════ */
.card {
  background: var(--surface-container-lowest); border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--r); padding: 16px; margin-bottom: 16px;
  transition: box-shadow .3s, border-color .3s;
}
.card:hover { box-shadow: var(--shadow-md); }
.card-title { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 16px; font-weight: 600; margin-bottom: 12px; }

/* ─── Tonal Inset ──────────── */
.tonal-inset { background: #F1F3F5; border-radius: var(--r-sm); }

/* ═══ DASHBOARD LAYOUT ═════════════════════════════════ */
.dash-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; }
.dash-grid > div { display: flex; flex-direction: column; gap: 16px; }

/* ─── Activity Empty State ──────────── */
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 16px; text-align: center; gap: 12px; }
.empty-state .material-symbols-outlined { font-size: 40px; color: var(--outline-variant); }
.empty-state .title { font-size: 16px; font-weight: 500; }
.empty-state .subtitle { font-size: 14px; color: var(--on-surface-variant); }

/* ─── Quick Action Buttons ──────────── */
.action-card {
  background: var(--surface-container-low); border-radius: var(--r); padding: 14px;
  display: flex; align-items: center; gap: 12px; cursor: pointer;
  transition: all .25s cubic-bezier(.4,0,.2,1); width: 100%; border: 1px solid transparent;
  text-align: left; font-family: inherit;
}
.action-card:hover { background: var(--surface-container); border-color: rgba(99,102,241,0.2); transform: translateX(4px); }
.ac-icon {
  width: 36px; height: 36px; border-radius: var(--r-sm);
  background: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(139,92,246,0.1));
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  transition: all .25s;
}
.action-card:hover .ac-icon { background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(139,92,246,0.2)); }
.ac-icon .material-symbols-outlined { font-size: 20px; }
.ac-label { font-size: 15px; font-weight: 500; }
.ac-desc { font-size: 13px; color: var(--on-surface-variant); }

/* ─── Deadline Cards ──────────── */
.deadline-card {
  background: #F1F3F5; border-radius: var(--r-sm); padding: 12px;
  border-left: 4px solid #eab308;
}
.deadline-card .dl-label { font-size: 12px; color: var(--on-surface-variant); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; margin-bottom: 4px; }
.deadline-card .dl-date { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 20px; font-weight: 600; margin-bottom: 6px; }
.deadline-card .dl-meta { font-size: 12px; font-weight: 500; display: flex; align-items: center; gap: 4px; }
.dl-meta.urgent { color: var(--error); }
.dl-meta.normal { color: #ca8a04; }

/* ═══ CLIENTS PAGE ════════════════════════════════════════ */
.client-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }
.client-card {
  background: var(--surface-container-lowest); border: 1px solid var(--border);
  border-radius: var(--r); padding: 16px;
  box-shadow: var(--shadow);
  transition: all .3s cubic-bezier(.4,0,.2,1);
  animation: fadeInUp .4s ease both;
}
.client-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: rgba(99,102,241,0.15); }
.cc-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.cc-avatar {
  width: 36px; height: 36px; border-radius: var(--r-sm);
  background: linear-gradient(135deg, #c7d2fe, #ddd6fe);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600; color: #4338ca;
  transition: transform .3s;
}
.client-card:hover .cc-avatar { transform: scale(1.1); }
.cc-name { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 15px; font-weight: 600; }
.cc-gstin { font-size: 12px; color: var(--on-surface-variant); font-family: monospace; }
.cc-actions { display: flex; gap: 8px; margin-top: 12px; }
.badge { padding: 3px 10px; border-radius: var(--r-full); font-size: 11px; font-weight: 600; transition: transform .2s; }
.badge:hover { transform: scale(1.05); }
.badge-green { background: var(--green-bg); color: var(--green); }
.badge-red { background: var(--red-bg); color: var(--red); }
.badge-amber { background: var(--amber-bg); color: var(--amber); }
.risk-meter { display: flex; align-items: center; gap: 8px; margin: 8px 0; }
.risk-track { flex: 1; height: 4px; background: var(--surface-container); border-radius: 2px; overflow: hidden; }
.risk-fill { height: 100%; border-radius: 2px; transition: width .8s cubic-bezier(.4,0,.2,1); }
.risk-label { font-size: 11px; font-weight: 600; }

/* ═══ UPLOAD PAGE ══════════════════════════════════════════ */
.stepper { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; padding: 12px 0; }
.step-circle { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; border: 2px solid var(--outline-variant); color: var(--on-surface-variant); }
.step-circle.active { background: var(--primary-container); border-color: var(--primary-container); color: var(--on-primary); }
.step-circle.done { background: var(--green); border-color: var(--green); color: #fff; }
.step-label { font-size: 12px; color: var(--on-surface-variant); }
.step-label.active { color: var(--primary); font-weight: 600; }
.step-line { flex: 1; height: 2px; background: var(--outline-variant); min-width: 16px; }
.upload-row { display: flex; gap: 16px; }
.upload-zone {
  flex: 1; border: 2px dashed var(--outline-variant); border-radius: var(--r); padding: 36px 20px;
  text-align: center; cursor: pointer; transition: all .3s cubic-bezier(.4,0,.2,1);
  position: relative;
}
.upload-zone:hover {
  border-color: var(--primary); background: rgba(99,102,241,0.03);
  transform: scale(1.01);
  box-shadow: 0 0 0 4px rgba(99,102,241,0.06);
}
.upload-zone.success {
  border-color: var(--green); border-style: solid; background: var(--green-bg);
  animation: scaleIn .3s ease;
}
.upload-zone.error { border-color: var(--red); border-style: solid; background: var(--red-bg); }
.upload-zone .uz-icon { font-size: 40px; margin-bottom: 12px; color: var(--on-surface-variant); transition: transform .3s; }
.upload-zone:hover .uz-icon { transform: translateY(-4px); }
.upload-zone .uz-text { font-size: 14px; color: var(--on-surface-variant); }
.upload-zone .uz-hint { font-size: 12px; color: var(--outline); margin-top: 6px; }
.upload-zone .uz-success { color: var(--green); font-weight: 600; }
.upload-zone .uz-count { color: var(--green); font-size: 12px; margin-top: 4px; }

/* ═══ RESULTS PAGE ═════════════════════════════════════════ */
.results-actions { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.ra-btn {
  padding: 10px 16px; border-radius: var(--r); font-size: 13px; font-weight: 600;
  border: none; cursor: pointer; transition: all .25s cubic-bezier(.4,0,.2,1); font-family: inherit; white-space: nowrap;
  position: relative; overflow: hidden;
}
.ra-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.ra-btn:active { transform: translateY(0); }
.ra-green { background: linear-gradient(135deg, #10b981, #059669); color: #fff; }
.ra-purple { background: linear-gradient(135deg, #8b5cf6, #6366f1); color: #fff; }
.ra-whatsapp { background: linear-gradient(135deg, #25D366, #128C7E); color: #fff; }
.ra-outline { background: var(--surface-container); color: var(--on-surface); border: 1px solid var(--outline-variant); }
.ra-primary { background: linear-gradient(135deg, var(--primary-container), var(--primary)); color: var(--on-primary); }

.summary-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.summary-card { background: var(--surface-container-lowest); border: 1px solid #E2E8F0; border-radius: var(--r); padding: 14px; }

.tabs-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 16px; scrollbar-width: none; }
.tabs-scroll::-webkit-scrollbar { display: none; }
.tabs {
  display: flex; gap: 4px; background: var(--surface-container); border: 1px solid var(--outline-variant);
  border-radius: var(--r); padding: 4px; min-width: max-content;
}
.tab {
  padding: 8px 14px; border-radius: var(--r-sm); font-size: 13px; font-weight: 500;
  background: transparent; border: none; color: var(--on-surface-variant); cursor: pointer;
  transition: all .2s; white-space: nowrap;
}
.tab.active { background: var(--surface-container-lowest); color: var(--on-surface); font-weight: 600; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.tab:hover:not(.active) { background: var(--surface-container-high); }

.table-scroll { background: var(--surface-container-lowest); border: 1px solid #E2E8F0; border-radius: var(--r); overflow-x: auto; -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; min-width: 700px; }
.data-table th { padding: 12px 14px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--on-surface-variant); background: var(--surface-container-low); text-align: left; border-bottom: 1px solid var(--outline-variant); position: sticky; top: 0; }
.data-table td { padding: 10px 14px; font-size: 13px; border-bottom: 1px solid var(--surface-container); }
.data-table tr:hover { background: var(--surface-container-low); cursor: pointer; }
.text-right { text-align: right; }
.text-center { text-align: center; }

/* ─── Detail Panel ──────────── */
.detail-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 200; display: flex; justify-content: flex-end; }
.detail-panel { width: 420px; max-width: 100%; background: var(--surface-container-lowest); height: 100vh; overflow-y: auto; padding: 24px; box-shadow: -8px 0 32px rgba(0,0,0,0.1); }
.detail-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }

/* ═══ REPORTS PAGE ═════════════════════════════════════════ */
.report-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.report-card {
  background: var(--surface-container-lowest); border: 1px solid #E2E8F0; border-radius: var(--r);
  padding: 20px; display: flex; gap: 16px;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
}
.rc-icon { width: 44px; height: 44px; border-radius: var(--r-sm); display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.rc-title { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.rc-desc { font-size: 13px; color: var(--on-surface-variant); }

/* ═══ SEARCH & FILTER ══════════════════════════════════════ */
.search-bar {
  display: flex; align-items: center; gap: 10px; background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant); border-radius: var(--r); padding: 10px 14px; margin-bottom: 16px;
}
.search-bar:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,74,198,0.08); }
.search-bar input { flex: 1; background: none; border: none; color: var(--on-surface); font-size: 14px; outline: none; font-family: inherit; }
.search-bar input::placeholder { color: var(--outline); }
.filter-chips { display: flex; gap: 6px; margin-bottom: 16px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.chip { padding: 6px 14px; border-radius: var(--r-full); font-size: 12px; font-weight: 500; background: var(--surface-container); color: var(--on-surface-variant); border: 1px solid var(--outline-variant); cursor: pointer; white-space: nowrap; transition: all .2s; }
.chip.active { background: var(--secondary-container); color: var(--on-secondary-container); border-color: transparent; }

/* ═══ MODAL ════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
  z-index: 150; display: flex; align-items: center; justify-content: center; padding: 16px;
  animation: fadeIn .2s ease;
}
.modal {
  background: var(--surface-container-lowest); border-radius: 20px; padding: 28px;
  max-width: 560px; width: 100%; max-height: 85vh; overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.15);
  animation: scaleIn .25s cubic-bezier(.4,0,.2,1);
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.modal h3 { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 20px; font-weight: 700; }

/* ═══ ITC BAR ══════════════════════════════════════════════ */
.itc-bar { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.progress-bar { height: 8px; background: var(--surface-container); border-radius: 4px; overflow: hidden; }
.progress-fill {
  height: 100%; border-radius: 4px;
  background: linear-gradient(90deg, var(--primary-container), var(--secondary));
  background-size: 200% 100%; animation: gradientShift 3s ease infinite;
  transition: width .6s cubic-bezier(.4,0,.2,1);
}

/* ═══ TOAST ════════════════════════════════════════════════ */
.toast-container { position: fixed; bottom: 90px; right: 16px; z-index: 1000; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 14px 20px; border-radius: var(--r); font-size: 13px; font-weight: 500;
  animation: toastIn 0.35s cubic-bezier(.4,0,.2,1);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12); min-width: 280px;
  backdrop-filter: blur(12px);
}
.toast-success { background: rgba(236,253,245,0.95); border: 1px solid rgba(5,150,105,0.2); color: var(--green); }
.toast-error { background: rgba(254,242,242,0.95); border: 1px solid rgba(220,38,38,0.2); color: var(--red); }
.toast-info { background: rgba(239,246,255,0.95); border: 1px solid rgba(37,99,235,0.2); color: var(--blue); }
@keyframes toastIn { from { opacity: 0; transform: translateY(16px) scale(0.95); } to { opacity: 1; transform: translateY(0) scale(1); } }

/* ═══ SCROLLBAR ════════════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--outline-variant); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--outline); }

/* ═══ DESKTOP (4-col stats) ════════════════════════════════ */
@media(min-width: 1024px) {
  .stat-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ═══ MOBILE ═══════════════════════════════════════════════ */
@media(max-width: 768px) {
  .sidebar { left: -300px; transition: left .3s ease; z-index: 60; }
  .sidebar.open { left: 0; }
  .mobile-header { display: flex !important; }
  .bottom-nav { display: flex !important; }
  .main-content { margin-left: 0 !important; padding: 8px 16px 88px !important; }
  .topbar h2 { font-size: 22px; }

  .results-actions { flex-wrap: nowrap; overflow-x: auto; gap: 6px; scrollbar-width: none; }
  .results-actions::-webkit-scrollbar { display: none; }
  .ra-btn { flex-shrink: 0; padding: 8px 12px; font-size: 12px; }

  .stat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .upload-row { flex-direction: column; }
  .form-row { flex-direction: column; }
  .client-grid { grid-template-columns: 1fr; }
  .dash-grid { grid-template-columns: 1fr; }
  .summary-strip { grid-template-columns: 1fr 1fr; }
  .report-grid { grid-template-columns: 1fr; }

  .tabs { flex-wrap: nowrap; }
  .tab { white-space: nowrap; flex-shrink: 0; font-size: 12px; padding: 8px 12px; }

  .cc-actions { flex-wrap: wrap; }
  .cc-actions .btn { flex: 1; min-width: 0; text-align: center; font-size: 12px; padding: 8px; }
  .card { padding: 14px; }

  .modal { width: 94vw; }
  .detail-panel { width: 100%; }
  .auth-card { margin: 16px; padding: 24px; }

  .stepper { gap: 2px; font-size: 11px; }
  .step-label { font-size: 10px; }
  .step-line { min-width: 12px; }
  .step-circle { width: 28px; height: 28px; font-size: 12px; }

  .toast-container { bottom: 90px; left: 16px; right: 16px; }
  .toast { min-width: auto; }
}

@media(max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .summary-strip { grid-template-columns: 1fr; }
  .topbar h2 { font-size: 20px; }
  .upload-zone { padding: 24px 12px; }
}

/* ═══ SETTINGS TABS ═══ */
.settings-tabs{display:flex;gap:4px;padding:0 24px;margin-bottom:24px;border-bottom:1px solid var(--border);overflow-x:auto}
.settings-tab{
  padding:12px 20px;border:none;background:none;font-size:13px;font-weight:500;color:var(--text-3);
  cursor:pointer;border-bottom:2px solid transparent;transition:all .3s cubic-bezier(.4,0,.2,1);
  white-space:nowrap;font-family:inherit;position:relative
}
.settings-tab:hover{color:var(--text-1);background:rgba(99,102,241,0.03)}
.settings-tab.active{color:var(--primary);border-bottom-color:var(--primary)}
.settings-panel{padding:0 24px;animation:fadeInUp .35s ease both}

.profile-header{display:flex;align-items:center;gap:20px;margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.profile-avatar-large{
  width:72px;height:72px;border-radius:20px;
  background:linear-gradient(135deg,#6366f1,#8b5cf6);
  display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700;color:#fff;
  flex-shrink:0;overflow:hidden;box-shadow:0 4px 16px rgba(99,102,241,0.3);
  transition:transform .3s
}
.profile-avatar-large:hover{transform:scale(1.05)}
.profile-avatar-large img{width:100%;height:100%;border-radius:20px;object-fit:cover}
.profile-name{font-size:20px;font-weight:700}
.profile-email{font-size:13px;color:var(--text-3);margin-top:2px}

.pref-item{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--border);transition:background .2s}
.pref-item:hover{background:rgba(99,102,241,0.02);margin:0 -8px;padding:16px 8px;border-radius:8px}
.pref-item:last-child{border-bottom:none}
.pref-label{font-weight:600;font-size:14px}
.pref-desc{font-size:12px;color:var(--text-3);margin-top:2px}

.about-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.about-stat{
  background:var(--bg-2);border-radius:12px;padding:20px;text-align:center;
  border:1px solid var(--border);transition:all .3s cubic-bezier(.4,0,.2,1)
}
.about-stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(99,102,241,0.2)}
.about-stat .material-symbols-outlined{font-size:24px;color:var(--primary);margin-bottom:8px}
.about-stat div{font-size:12px;color:var(--text-3)}
.about-stat strong{font-size:20px;display:block;margin-top:4px}

.nav-section-label{font-size:10px;text-transform:uppercase;letter-spacing:1.5px;color:rgba(255,255,255,0.3);padding:20px 16px 6px;font-weight:600}

/* ═══ ITC LEDGER ═══ */
.ledger-table{width:100%;border-collapse:collapse;font-size:13px}
.ledger-table th{text-align:left;padding:12px 16px;font-size:11px;text-transform:uppercase;letter-spacing:0.5px;color:var(--text-3);background:var(--bg-2);border-bottom:2px solid var(--border);font-weight:600}
.ledger-table td{padding:12px 16px;border-bottom:1px solid var(--border);transition:background .2s}
.ledger-table tr:hover td{background:rgba(99,102,241,0.03)}
.ledger-table .positive{color:var(--green);font-weight:600}
.ledger-table .negative{color:var(--red);font-weight:600}
.ledger-table tfoot td{font-weight:700;background:var(--bg-2);border-top:2px solid var(--border)}

/* ═══ CALENDAR ═══ */
.calendar-layout{display:grid;grid-template-columns:1fr 300px;gap:24px;padding:0 24px}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;background:var(--border);border-radius:12px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.cal-header{padding:10px;text-align:center;font-size:11px;font-weight:600;text-transform:uppercase;color:var(--text-3);background:var(--bg-2)}
.cal-day{padding:8px;min-height:80px;background:#fff;font-size:12px;position:relative;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1)}
.cal-day:hover{background:rgba(99,102,241,0.04);box-shadow:inset 0 0 0 1px rgba(99,102,241,0.15)}
.cal-day .num{font-weight:600;margin-bottom:4px;transition:color .2s}
.cal-day:hover .num{color:var(--primary)}
.cal-day.today{background:rgba(99,102,241,0.06)}
.cal-day.today .num{color:var(--primary);font-weight:800}
.cal-day.other-month{opacity:0.3}
.cal-event{font-size:9px;padding:2px 6px;border-radius:4px;margin-bottom:2px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:transform .2s}
.cal-day:hover .cal-event{transform:scale(1.05)}
.cal-event.gstr1{background:#dbeafe;color:#1d4ed8}
.cal-event.gstr2b{background:#fef3c7;color:#92400e}
.cal-event.gstr3b{background:#fce7f3;color:#be185d}
.cal-sidebar .card{margin-bottom:16px}
.upcoming-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--border);transition:transform .2s}
.upcoming-item:hover{transform:translateX(4px)}
.upcoming-item:last-child{border-bottom:none}
.upcoming-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;transition:transform .3s}
.upcoming-item:hover .upcoming-dot{transform:scale(1.3)}

/* ═══ NOTICE TRACKER ═══ */
.notice-status{padding:4px 10px;border-radius:6px;font-size:11px;font-weight:600;display:inline-block;transition:all .2s}
.notice-status:hover{transform:scale(1.05)}
.notice-status.open{background:#fef2f2;color:#dc2626}
.notice-status.responded{background:#fef3c7;color:#92400e}
.notice-status.closed{background:#dcfce7;color:#16a34a}

/* ═══ GSTR-3B PAGE ═══ */
.gstr3b-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:0 24px}
.gstr3b-table{width:100%;border-collapse:collapse;font-size:13px}
.gstr3b-table th{text-align:left;padding:12px 16px;font-size:11px;text-transform:uppercase;letter-spacing:0.5px;color:var(--text-3);background:var(--bg-2);font-weight:600}
.gstr3b-table td{padding:12px 16px;border-bottom:1px solid var(--border);transition:background .2s}
.gstr3b-table tr:hover td{background:rgba(99,102,241,0.03)}
.gstr3b-safe-box{
  background:linear-gradient(135deg,#ecfdf5,#d1fae5);border:2px solid rgba(5,150,105,0.2);
  border-radius:16px;padding:32px;text-align:center;
  box-shadow:0 4px 24px rgba(5,150,105,0.1);
  animation:fadeInUp .5s ease both
}
.gstr3b-safe-box .label{font-size:12px;color:var(--green);text-transform:uppercase;letter-spacing:1.5px;font-weight:700}
.gstr3b-safe-box .amount{font-size:40px;font-weight:900;color:var(--green);margin-top:8px;letter-spacing:-1px}
.gstr3b-safe-box .sub{font-size:13px;color:var(--text-3);margin-top:4px}

/* ═══ SKELETON LOADING ═══ */
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
.skeleton{background:linear-gradient(90deg,var(--bg-2) 25%,var(--border) 50%,var(--bg-2) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:8px}

/* ═══ PAGE TRANSITIONS ═══ */
.page{animation:fadeInUp .35s ease both}

/* ═══ DATA TABLE ANIMATIONS ═══ */
.data-table tbody tr{animation:fadeInUp .3s ease both}
.data-table tbody tr:nth-child(1){animation-delay:0s}
.data-table tbody tr:nth-child(2){animation-delay:.02s}
.data-table tbody tr:nth-child(3){animation-delay:.04s}
.data-table tbody tr:nth-child(4){animation-delay:.06s}
.data-table tbody tr:nth-child(5){animation-delay:.08s}

/* ═══ REPORT CARD ANIMATIONS ═══ */
.report-card{transition:all .3s cubic-bezier(.4,0,.2,1)}
.report-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(99,102,241,0.15)}
.report-card .rc-icon{transition:transform .3s}
.report-card:hover .rc-icon{transform:scale(1.1) rotate(5deg)}

/* ═══ FORM INPUT FOCUS ═══ */
.form-input{transition:all .25s cubic-bezier(.4,0,.2,1)}
.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,0.1)}

@media(max-width:768px){
  .settings-tabs{padding:0 16px}
  .settings-panel{padding:0 16px}
  .calendar-layout{grid-template-columns:1fr}
  .gstr3b-grid{grid-template-columns:1fr}
  .about-stats{grid-template-columns:1fr}
  .profile-header{flex-direction:column;text-align:center}
}