/* ============================================
   PIXELPULSE BILLING — STYLESHEET
   Font: Syne (display) + DM Sans (body)
   ============================================ */

/* ===== CSS VARIABLES / THEME ENGINE ===== */
:root {
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: 200ms cubic-bezier(.4,0,.2,1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow: 0 4px 16px rgba(0,0,0,.12), 0 2px 6px rgba(0,0,0,.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.2), 0 8px 24px rgba(0,0,0,.1);
  --sidebar-w: 260px;
  --topbar-h: 64px;
}

/* ============================
   DARK THEME (Default)
   ============================ */
[data-theme="dark"] {
  --bg: #0d0e12;
  --bg-2: #13141a;
  --bg-3: #1a1b23;
  --bg-4: #22232e;
  --border: rgba(255,255,255,.07);
  --border-hover: rgba(255,255,255,.14);
  --text: #f0f0f5;
  --text-muted: #8888aa;
  --text-faint: #44445a;
  --accent: #6C63FF;
  --accent-2: #FF6B9D;
  --accent-glow: rgba(108,99,255,.25);
  --accent-hover: #7c74ff;
  --success: #2ecc71;
  --warning: #f39c12;
  --danger: #e74c3c;
  --card-bg: rgba(255,255,255,.04);
  --card-border: rgba(255,255,255,.07);
  --input-bg: rgba(255,255,255,.05);
  --sidebar-bg: #0d0e12;
  --topbar-bg: rgba(13,14,18,.9);
}

/* ============================
   LIGHT THEME
   ============================ */
[data-theme="light"] {
  --bg: #f4f5f9;
  --bg-2: #ffffff;
  --bg-3: #f0f1f6;
  --bg-4: #e8eaf0;
  --border: rgba(0,0,0,.08);
  --border-hover: rgba(0,0,0,.16);
  --text: #1a1b2e;
  --text-muted: #6b7280;
  --text-faint: #d1d5db;
  --accent: #6C63FF;
  --accent-2: #FF6B9D;
  --accent-glow: rgba(108,99,255,.15);
  --accent-hover: #5a52e0;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --card-bg: #ffffff;
  --card-border: rgba(0,0,0,.06);
  --input-bg: #f9fafb;
  --sidebar-bg: #ffffff;
  --topbar-bg: rgba(255,255,255,.92);
}

/* ============================
   BLUE THEME
   ============================ */
[data-theme="blue"] {
  --bg: #050d1a;
  --bg-2: #091426;
  --bg-3: #0e1f3d;
  --bg-4: #132a52;
  --border: rgba(100,160,255,.1);
  --border-hover: rgba(100,160,255,.2);
  --text: #e0eeff;
  --text-muted: #6a9fcc;
  --text-faint: #1e3a5f;
  --accent: #4da6ff;
  --accent-2: #00d4ff;
  --accent-glow: rgba(77,166,255,.25);
  --accent-hover: #6ab8ff;
  --success: #00c896;
  --warning: #ffb830;
  --danger: #ff5c6a;
  --card-bg: rgba(77,166,255,.05);
  --card-border: rgba(77,166,255,.1);
  --input-bg: rgba(77,166,255,.07);
  --sidebar-bg: #050d1a;
  --topbar-bg: rgba(5,13,26,.9);
}

/* ============================
   PURPLE THEME
   ============================ */
[data-theme="purple"] {
  --bg: #0d0518;
  --bg-2: #130820;
  --bg-3: #1c0f30;
  --bg-4: #261640;
  --border: rgba(180,120,255,.1);
  --border-hover: rgba(180,120,255,.2);
  --text: #f0e8ff;
  --text-muted: #9970cc;
  --text-faint: #3a1f5a;
  --accent: #b47fff;
  --accent-2: #ff7bce;
  --accent-glow: rgba(180,127,255,.25);
  --accent-hover: #c490ff;
  --success: #6af0b0;
  --warning: #ffcc44;
  --danger: #ff6680;
  --card-bg: rgba(180,127,255,.05);
  --card-border: rgba(180,127,255,.1);
  --input-bg: rgba(180,127,255,.07);
  --sidebar-bg: #0d0518;
  --topbar-bg: rgba(13,5,24,.9);
}

/* ============================
   GOLD THEME
   ============================ */
[data-theme="gold"] {
  --bg: #0f0d06;
  --bg-2: #1a1608;
  --bg-3: #26200d;
  --bg-4: #322a12;
  --border: rgba(200,160,60,.12);
  --border-hover: rgba(200,160,60,.24);
  --text: #fff8e8;
  --text-muted: #a08040;
  --text-faint: #3a2e10;
  --accent: #d4a72c;
  --accent-2: #ff9f4a;
  --accent-glow: rgba(212,167,44,.25);
  --accent-hover: #e0b83c;
  --success: #6dcc7a;
  --warning: #ffaa22;
  --danger: #ff6060;
  --card-bg: rgba(212,167,44,.05);
  --card-border: rgba(212,167,44,.1);
  --input-bg: rgba(212,167,44,.07);
  --sidebar-bg: #0f0d06;
  --topbar-bg: rgba(15,13,6,.9);
}

/* ============================
   GLASS THEME
   ============================ */
[data-theme="glass"] {
  --bg: linear-gradient(135deg,#1a1060 0%,#0a1830 40%,#001028 100%);
  --bg-2: rgba(255,255,255,.06);
  --bg-3: rgba(255,255,255,.04);
  --bg-4: rgba(255,255,255,.08);
  --border: rgba(255,255,255,.12);
  --border-hover: rgba(255,255,255,.24);
  --text: #ffffff;
  --text-muted: rgba(255,255,255,.55);
  --text-faint: rgba(255,255,255,.2);
  --accent: #a78bfa;
  --accent-2: #f472b6;
  --accent-glow: rgba(167,139,250,.3);
  --accent-hover: #b89dfb;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --card-bg: rgba(255,255,255,.06);
  --card-border: rgba(255,255,255,.12);
  --input-bg: rgba(255,255,255,.08);
  --sidebar-bg: rgba(255,255,255,.04);
  --topbar-bg: rgba(255,255,255,.05);
}

/* ============================
   CORPORATE THEME
   ============================ */
[data-theme="corporate"] {
  --bg: #f0f2f5;
  --bg-2: #ffffff;
  --bg-3: #e8ecf0;
  --bg-4: #dde3ea;
  --border: #d0d8e4;
  --border-hover: #b8c4d4;
  --text: #1a2332;
  --text-muted: #536880;
  --text-faint: #c0ccd8;
  --accent: #1a4fa0;
  --accent-2: #0099cc;
  --accent-glow: rgba(26,79,160,.15);
  --accent-hover: #1a5fbe;
  --success: #1e8a4c;
  --warning: #cc7a00;
  --danger: #cc2222;
  --card-bg: #ffffff;
  --card-border: #d8e0ea;
  --input-bg: #f5f7fa;
  --sidebar-bg: #1a2332;
  --topbar-bg: rgba(255,255,255,.95);
}
[data-theme="corporate"] .sidebar {
  --text: #c8d6e8;
  --text-muted: #8899aa;
  --border: rgba(255,255,255,.08);
}

/* ============================
   MINIMAL THEME
   ============================ */
[data-theme="minimal"] {
  --bg: #fafafa;
  --bg-2: #ffffff;
  --bg-3: #f5f5f5;
  --bg-4: #eeeeee;
  --border: #e5e5e5;
  --border-hover: #cccccc;
  --text: #111111;
  --text-muted: #777777;
  --text-faint: #dddddd;
  --accent: #111111;
  --accent-2: #555555;
  --accent-glow: rgba(0,0,0,.1);
  --accent-hover: #333333;
  --success: #22AA66;
  --warning: #BB8800;
  --danger: #DD3333;
  --card-bg: #ffffff;
  --card-border: #eeeeee;
  --input-bg: #f8f8f8;
  --sidebar-bg: #111111;
  --topbar-bg: rgba(255,255,255,.95);
}
[data-theme="minimal"] .sidebar { --text:#f0f0f0; --text-muted:#888888; --border:rgba(255,255,255,.08); }

/* ============================
   ELEGANT THEME
   ============================ */
[data-theme="elegant"] {
  --bg: #1a1510;
  --bg-2: #221d16;
  --bg-3: #2c2518;
  --bg-4: #362e1e;
  --border: rgba(200,180,140,.1);
  --border-hover: rgba(200,180,140,.2);
  --text: #f5ede0;
  --text-muted: #9c8866;
  --text-faint: #4a3e28;
  --accent: #c8a46e;
  --accent-2: #e8c894;
  --accent-glow: rgba(200,164,110,.2);
  --accent-hover: #d4b27e;
  --success: #7abf7a;
  --warning: #d4a840;
  --danger: #c05050;
  --card-bg: rgba(200,164,110,.05);
  --card-border: rgba(200,164,110,.1);
  --input-bg: rgba(200,164,110,.06);
  --sidebar-bg: #1a1510;
  --topbar-bg: rgba(26,21,16,.9);
}

/* ============================
   SOFT THEME
   ============================ */
[data-theme="soft"] {
  --bg: #fdf6ff;
  --bg-2: #ffffff;
  --bg-3: #f8f0fe;
  --bg-4: #f0e8fc;
  --border: #e8d8f8;
  --border-hover: #d0b8f0;
  --text: #3a1a5a;
  --text-muted: #9060a0;
  --text-faint: #ddc8f4;
  --accent: #b06cd0;
  --accent-2: #e090b8;
  --accent-glow: rgba(176,108,208,.2);
  --accent-hover: #c07ce0;
  --success: #40bb88;
  --warning: #d4922a;
  --danger: #cc4466;
  --card-bg: #ffffff;
  --card-border: #f0e0fc;
  --input-bg: #fdf8ff;
  --sidebar-bg: #2a1040;
  --topbar-bg: rgba(253,246,255,.95);
}
[data-theme="soft"] .sidebar { --text:#f0e0ff; --text-muted:#c080e0; --border:rgba(255,255,255,.08); }

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea {
  font-family: inherit;
  font-size: .9375rem;
  color: var(--text);
}
textarea { resize: vertical; }

h1,h2,h3,h4,h5 { font-family: 'Syne', sans-serif; }

.hidden { display: none !important; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

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

.login-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 30%, transparent 100%);
  opacity: .6;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.orb-1 { width: 400px; height: 400px; background: rgba(108,99,255,.18); top: -100px; left: -100px; }
.orb-2 { width: 300px; height: 300px; background: rgba(255,107,157,.14); bottom: -80px; right: -80px; }
.orb-3 { width: 200px; height: 200px; background: rgba(0,212,255,.10); top: 40%; left: 30%; }

.login-card {
  position: relative;
  z-index: 10;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  animation: loginFadeIn .5s ease both;
}

@keyframes loginFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.login-brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 2rem;
}
.login-logo-wrap { flex-shrink: 0; }
.login-brand-name {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text);
}
.login-brand-tag {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  background: var(--accent-glow);
  padding: .2em .5em;
  border-radius: 4px;
}

.login-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
}
.login-subtitle {
  color: var(--text-muted);
  font-size: .9375rem;
  margin: .4rem 0 1.5rem;
}

.login-error {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: rgba(231,76,60,.12);
  border: 1px solid rgba(231,76,60,.3);
  color: var(--danger);
  border-radius: var(--radius-sm);
  padding: .625rem .875rem;
  font-size: .875rem;
  margin-bottom: 1rem;
}

.login-form { display: flex; flex-direction: column; gap: 1rem; }

.form-group { display: flex; flex-direction: column; gap: .375rem; }
.form-group label {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.input-icon {
  position: absolute;
  left: .875rem;
  color: var(--text-muted);
  pointer-events: none;
  flex-shrink: 0;
}
.input-wrap input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .75rem .875rem .75rem 2.5rem;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.input-wrap input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.toggle-pass {
  position: absolute;
  right: .75rem;
  background: none;
  border: none;
  color: var(--text-muted);
  padding: .25rem;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}
.toggle-pass:hover { color: var(--text); }

.btn-login {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: .875rem 1.5rem;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  transition: opacity var(--transition), transform var(--transition);
  margin-top: .5rem;
}
.btn-login:hover { opacity: .9; transform: translateY(-1px); }
.btn-login:active { transform: translateY(0); }

.login-footer {
  text-align: center;
  color: var(--text-faint);
  font-size: .75rem;
  margin-top: 1.5rem;
}

/* =============================================
   APP SHELL LAYOUT
   ============================================= */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.brand-name {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text);
}
.brand-sub {
  font-size: .7rem;
  color: var(--text-muted);
  letter-spacing: .04em;
}

.sidebar-close {
  display: none;
  background: none;
  border: none;
  color: var(--text-muted);
  padding: .375rem;
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
}
.sidebar-close:hover { background: var(--bg-4); color: var(--text); }

.sidebar-nav {
  flex: 1;
  padding: 1rem .75rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: .125rem;
}

.nav-section-label {
  font-size: .6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-faint);
  padding: .875rem .5rem .375rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .625rem .75rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: .9375rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
  position: relative;
}
.nav-item:hover { background: var(--bg-3); color: var(--text); text-decoration: none; }
.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent);
}
.nav-item svg { flex-shrink: 0; }

.nav-badge {
  margin-left: auto;
  background: var(--accent-glow);
  color: var(--accent);
  font-size: .7rem;
  font-weight: 700;
  padding: .15em .45em;
  border-radius: 99px;
  min-width: 1.4em;
  text-align: center;
}

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding: .875rem .75rem;
}

.user-card {
  display: flex;
  align-items: center;
  gap: .625rem;
  padding: .5rem .625rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.user-card:hover { background: var(--bg-3); }

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: .875rem;
  color: #fff;
  flex-shrink: 0;
}
.user-avatar.sm { width: 28px; height: 28px; font-size: .75rem; border-radius: 8px; }

.user-info { flex: 1; min-width: 0; }
.user-name { font-size: .875rem; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: .75rem; color: var(--text-muted); }

.logout-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: .375rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  transition: background var(--transition), color var(--transition);
}
.logout-btn:hover { background: rgba(231,76,60,.12); color: var(--danger); }

.company-info {
  font-size: .7rem;
  color: var(--text-faint);
  text-align: center;
  padding-top: .625rem;
  letter-spacing: .02em;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 99;
  backdrop-filter: blur(2px);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== TOPBAR ===== */
.topbar {
  height: var(--topbar-h);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  gap: 1rem;
}

.topbar-left { display: flex; align-items: center; gap: 1rem; flex-shrink: 0; }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-muted);
  padding: .375rem;
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
}
.menu-toggle:hover { background: var(--bg-3); color: var(--text); }

.topbar-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--text);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex: 1;
  justify-content: flex-end;
}

.topbar-search {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .4rem .75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  max-width: 280px;
  width: 100%;
}
.topbar-search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.topbar-search svg { color: var(--text-muted); flex-shrink: 0; }
.topbar-search input {
  background: none;
  border: none;
  outline: none;
  width: 100%;
  font-size: .875rem;
}

.topbar-date { font-size: .8125rem; color: var(--text-muted); white-space: nowrap; }

.user-chip {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .25rem .75rem .25rem .25rem;
  font-size: .875rem;
  font-weight: 500;
}

/* ===== PAGE CONTAINER ===== */
.page-container { flex: 1; padding: 1.75rem 1.5rem; }

.page { display: none; }
.page.active { display: block; animation: pageFade .25s ease both; }
@keyframes pageFade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}
.page-title { font-size: 1.625rem; font-weight: 800; color: var(--text); }
.page-subtitle { color: var(--text-muted); font-size: .9375rem; margin-top: .2rem; }

.header-actions { display: flex; gap: .625rem; flex-wrap: wrap; }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: .625rem 1.125rem;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: .875rem;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn-primary:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 4px 16px var(--accent-glow); }
.btn-primary:active { transform: translateY(0); }
.btn-primary.sm { padding: .4rem .8rem; font-size: .8125rem; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  padding: .625rem 1rem;
  font-size: .875rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn-ghost:hover { background: var(--bg-4); color: var(--text); border-color: var(--border-hover); }
.btn-ghost.sm { padding: .4rem .75rem; font-size: .8125rem; }
.btn-ghost.danger { color: var(--danger); border-color: rgba(231,76,60,.2); }
.btn-ghost.danger:hover { background: rgba(231,76,60,.1); }

/* ===== STAT CARDS ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover { border-color: var(--border-hover); transform: translateY(-2px); box-shadow: var(--shadow); }

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-icon-purple { background: rgba(108,99,255,.15); color: #6C63FF; }
.stat-icon-green { background: rgba(46,204,113,.15); color: var(--success); }
.stat-icon-orange { background: rgba(243,156,18,.15); color: var(--warning); }
.stat-icon-blue { background: rgba(52,152,219,.15); color: #3498db; }

.stat-content { display: flex; flex-direction: column; gap: .25rem; min-width: 0; }
.stat-label { font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); }
.stat-value { font-family: 'Syne', sans-serif; font-size: 1.5rem; font-weight: 800; color: var(--text); line-height: 1; }
.stat-delta { font-size: .75rem; color: var(--text-muted); }
.stat-delta.positive { color: var(--success); }
.stat-delta.warning { color: var(--warning); }

/* ===== SECTION CARD ===== */
.section-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.section-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.section-card-header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

/* ===== DATA TABLE ===== */
.table-wrap { overflow-x: auto; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
.data-table th {
  padding: .75rem 1.25rem;
  text-align: left;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}
.data-table th:hover { color: var(--text); }
.sort-icon { opacity: .4; }

.data-table td {
  padding: .875rem 1.25rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-3); }

.empty-row td {
  text-align: center;
  color: var(--text-muted);
  padding: 2.5rem;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .25em .65em;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-paid { background: rgba(46,204,113,.12); color: var(--success); }
.badge-unpaid { background: rgba(243,156,18,.12); color: var(--warning); }
.badge-overdue { background: rgba(231,76,60,.12); color: var(--danger); }

/* Row actions */
.row-actions { display: flex; gap: .375rem; }
.row-actions button {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: .3rem .55rem;
  border-radius: 6px;
  font-size: .75rem;
  transition: all var(--transition);
  white-space: nowrap;
}
.row-actions button:hover { background: var(--bg-3); color: var(--text); border-color: var(--border-hover); }
.row-actions button.danger:hover { background: rgba(231,76,60,.1); color: var(--danger); border-color: rgba(231,76,60,.3); }

/* =============================================
   CREATE INVOICE PAGE
   ============================================= */
.invoice-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

.invoice-form-panel { display: flex; flex-direction: column; gap: 1rem; }

.form-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.form-card-title {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: .9375rem;
  color: var(--text);
  margin-bottom: 1rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--border);
}

.form-row { display: flex; gap: .75rem; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.three-col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: .75rem; }

.form-group { display: flex; flex-direction: column; gap: .375rem; }
.form-group label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .625rem .875rem;
  color: var(--text);
  outline: none;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group input[readonly] { opacity: .6; cursor: default; }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .75rem center; padding-right: 2rem; }

.input-addon-wrap { display: flex; }
.input-addon-wrap input { border-radius: var(--radius-sm) 0 0 var(--radius-sm); border-right: none; flex: 1; }
.input-addon-wrap select { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; width: auto; min-width: 80px; border-left: none; }

/* Logo Upload */
.logo-upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: .5rem;
  min-height: 90px;
  color: var(--text-muted);
  font-size: .875rem;
}
.logo-upload-area:hover { border-color: var(--accent); background: var(--accent-glow); }
.logo-upload-area small { font-size: .75rem; color: var(--text-faint); }
.logo-preview { max-height: 60px; max-width: 200px; object-fit: contain; border-radius: 6px; }

/* Items Table */
.items-table-wrap { overflow-x: auto; margin-bottom: .75rem; }
.items-table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.items-table th {
  padding: .5rem .625rem;
  text-align: left;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.items-table td { padding: .4rem .25rem; vertical-align: middle; }

.items-table input {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .45rem .6rem;
  color: var(--text);
  outline: none;
  width: 100%;
  font-size: .875rem;
  transition: border-color var(--transition);
}
.items-table input:focus { border-color: var(--accent); }
.items-table .item-total { font-weight: 600; color: var(--text); padding: 0 .5rem; white-space: nowrap; }

.remove-item-btn {
  background: none;
  border: none;
  color: var(--text-faint);
  padding: .35rem;
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
  display: flex;
  align-items: center;
}
.remove-item-btn:hover { background: rgba(231,76,60,.1); color: var(--danger); }

.add-item-btn {
  width: 100%;
  justify-content: center;
  border-style: dashed;
}

/* Totals */
.totals-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; margin-bottom: 1rem; }
.totals-summary { display: flex; flex-direction: column; gap: .5rem; }
.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .5rem .75rem;
  border-radius: 8px;
  font-size: .9rem;
  color: var(--text-muted);
}
.total-row:hover { background: var(--bg-3); }
.total-row.grand {
  background: var(--accent-glow);
  border: 1px solid rgba(108,99,255,.2);
  color: var(--accent);
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.05rem;
}

/* ===== INVOICE PREVIEW PANEL ===== */
.invoice-preview-panel {
  position: sticky;
  top: calc(var(--topbar-h) + 1.75rem);
  max-height: calc(100vh - var(--topbar-h) - 3.5rem);
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  gap: .5rem;
  flex-wrap: wrap;
}
.preview-label {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
}
.preview-actions { display: flex; gap: .5rem; flex-wrap: wrap; }

.preview-scroll { flex: 1; overflow-y: auto; padding: 1rem; background: #e8e8e8; }

/* =============================================
   INVOICE DOCUMENT STYLES (Preview & PDF)
   ============================================= */
.invoice-doc {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  background: #fff;
  color: #1a1b2e;
  font-family: 'DM Sans', sans-serif;
  box-shadow: 0 4px 24px rgba(0,0,0,.12);
  border-radius: 4px;
  overflow: hidden;
}

/* ---- TEMPLATE: Modern (default) ---- */
.invoice-doc.template-modern .inv-header {
  background: linear-gradient(135deg, #1a1b2e, #2d2e45);
  color: #fff;
  padding: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}
.invoice-doc.template-modern .inv-logo img { max-height: 50px; max-width: 140px; object-fit: contain; }
.invoice-doc.template-modern .inv-logo-text { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.5rem; color: #6C63FF; }
.invoice-doc.template-modern .inv-header-right { text-align: right; }
.invoice-doc.template-modern .inv-title { font-family: 'Syne', sans-serif; font-size: 2rem; font-weight: 800; color: #fff; margin-bottom: .25rem; }
.invoice-doc.template-modern .inv-number { color: rgba(255,255,255,.5); font-size: .9rem; }
.invoice-doc.template-modern .inv-status-tag { display: inline-block; margin-top: .5rem; padding: .3em .8em; border-radius: 999px; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.invoice-doc.template-modern .inv-body { padding: 2rem 2.5rem; }
.invoice-doc.template-modern .inv-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.invoice-doc.template-modern .inv-meta-label { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: #888; margin-bottom: .2rem; }
.invoice-doc.template-modern .inv-meta-value { font-size: .95rem; font-weight: 500; color: #1a1b2e; }
.invoice-doc.template-modern .inv-table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; }
.invoice-doc.template-modern .inv-table thead th { background: #f8f8fc; padding: .75rem 1rem; text-align: left; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: #888; border-bottom: 2px solid #e0e0f0; }
.invoice-doc.template-modern .inv-table tbody td { padding: .875rem 1rem; border-bottom: 1px solid #f0f0f8; font-size: .9rem; }
.invoice-doc.template-modern .inv-table tbody tr:last-child td { border-bottom: none; }
.invoice-doc.template-modern .inv-totals { display: flex; justify-content: flex-end; margin-bottom: 2rem; }
.invoice-doc.template-modern .inv-totals-table { width: 280px; }
.invoice-doc.template-modern .inv-totals-row { display: flex; justify-content: space-between; padding: .4rem 0; font-size: .9rem; color: #555; border-bottom: 1px solid #f0f0f0; }
.invoice-doc.template-modern .inv-totals-row:last-child { border-bottom: none; }
.invoice-doc.template-modern .inv-totals-row.grand { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.1rem; color: #6C63FF; padding: .6rem 0; }
.invoice-doc.template-modern .inv-footer { background: #f8f8fc; padding: 1.25rem 2.5rem; border-top: 1px solid #e8e8f0; display: flex; justify-content: space-between; align-items: center; font-size: .78rem; color: #999; }

/* ---- TEMPLATE: Classic ---- */
.invoice-doc.template-classic { font-family: Georgia, serif; }
.invoice-doc.template-classic .inv-header { padding: 2rem 2.5rem; display: flex; justify-content: space-between; align-items: flex-start; border-bottom: 3px double #c0a070; }
.invoice-doc.template-classic .inv-logo-text { font-size: 1.6rem; font-weight: 700; color: #8B4513; }
.invoice-doc.template-classic .inv-title { font-size: 2rem; color: #8B4513; font-style: italic; }
.invoice-doc.template-classic .inv-number { color: #888; font-size: .85rem; }
.invoice-doc.template-classic .inv-body { padding: 1.5rem 2.5rem; }
.invoice-doc.template-classic .inv-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }
.invoice-doc.template-classic .inv-meta-label { font-size: .8rem; font-weight: bold; text-transform: uppercase; color: #8B4513; }
.invoice-doc.template-classic .inv-meta-value { font-size: .95rem; color: #333; }
.invoice-doc.template-classic .inv-table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; }
.invoice-doc.template-classic .inv-table thead th { background: #8B4513; color: #fff; padding: .6rem 1rem; text-align: left; font-size: .8rem; text-transform: uppercase; }
.invoice-doc.template-classic .inv-table tbody td { padding: .75rem 1rem; border-bottom: 1px solid #e0d0c0; font-size: .9rem; }
.invoice-doc.template-classic .inv-totals { display: flex; justify-content: flex-end; margin-bottom: 1.5rem; }
.invoice-doc.template-classic .inv-totals-table { width: 280px; border-top: 2px solid #8B4513; padding-top: .5rem; }
.invoice-doc.template-classic .inv-totals-row { display: flex; justify-content: space-between; padding: .35rem 0; font-size: .9rem; color: #555; }
.invoice-doc.template-classic .inv-totals-row.grand { font-weight: 700; font-size: 1.05rem; color: #8B4513; border-top: 1px solid #c0a070; padding-top: .5rem; }
.invoice-doc.template-classic .inv-footer { border-top: 3px double #c0a070; padding: 1rem 2.5rem; font-size: .78rem; color: #888; text-align: center; }

/* ---- TEMPLATE: Minimal ---- */
.invoice-doc.template-minimal { font-family: 'DM Sans', sans-serif; }
.invoice-doc.template-minimal .inv-header { padding: 2.5rem; border-bottom: 1px solid #eee; display: flex; justify-content: space-between; align-items: flex-start; }
.invoice-doc.template-minimal .inv-logo-text { font-size: 1.3rem; font-weight: 800; color: #111; letter-spacing: -.02em; }
.invoice-doc.template-minimal .inv-title { font-size: 1.5rem; font-weight: 800; color: #111; }
.invoice-doc.template-minimal .inv-number { color: #aaa; font-size: .85rem; }
.invoice-doc.template-minimal .inv-body { padding: 2rem 2.5rem; }
.invoice-doc.template-minimal .inv-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.invoice-doc.template-minimal .inv-meta-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: #aaa; margin-bottom: .2rem; }
.invoice-doc.template-minimal .inv-meta-value { font-size: .9rem; color: #111; }
.invoice-doc.template-minimal .inv-table { width: 100%; border-collapse: collapse; margin-bottom: 2rem; }
.invoice-doc.template-minimal .inv-table thead th { padding: .6rem 0; text-align: left; font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: #aaa; border-bottom: 1px solid #111; }
.invoice-doc.template-minimal .inv-table tbody td { padding: .75rem 0; border-bottom: 1px solid #eee; font-size: .9rem; color: #333; }
.invoice-doc.template-minimal .inv-totals { display: flex; justify-content: flex-end; margin-bottom: 2rem; }
.invoice-doc.template-minimal .inv-totals-table { width: 240px; }
.invoice-doc.template-minimal .inv-totals-row { display: flex; justify-content: space-between; padding: .35rem 0; font-size: .85rem; color: #666; }
.invoice-doc.template-minimal .inv-totals-row.grand { font-weight: 800; font-size: 1rem; color: #111; border-top: 1px solid #111; padding-top: .5rem; }
.invoice-doc.template-minimal .inv-footer { padding: 1.25rem 2.5rem; border-top: 1px solid #eee; font-size: .75rem; color: #bbb; display: flex; justify-content: space-between; }

/* ---- TEMPLATE: Bold ---- */
.invoice-doc.template-bold .inv-header { background: #FF6B35; padding: 2.5rem; display: flex; justify-content: space-between; align-items: flex-start; }
.invoice-doc.template-bold .inv-logo-text { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.6rem; color: #fff; }
.invoice-doc.template-bold .inv-title { font-family: 'Syne', sans-serif; font-size: 2.2rem; font-weight: 900; color: #fff; text-transform: uppercase; letter-spacing: -.02em; }
.invoice-doc.template-bold .inv-number { color: rgba(255,255,255,.7); }
.invoice-doc.template-bold .inv-body { padding: 2rem 2.5rem; }
.invoice-doc.template-bold .inv-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.invoice-doc.template-bold .inv-meta-label { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: #FF6B35; margin-bottom: .2rem; }
.invoice-doc.template-bold .inv-meta-value { font-size: .95rem; color: #1a1a1a; font-weight: 500; }
.invoice-doc.template-bold .inv-table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; }
.invoice-doc.template-bold .inv-table thead th { background: #FF6B35; color: #fff; padding: .75rem 1rem; text-align: left; font-size: .75rem; font-weight: 700; text-transform: uppercase; }
.invoice-doc.template-bold .inv-table tbody td { padding: .875rem 1rem; border-bottom: 2px solid #ffede5; font-size: .9rem; }
.invoice-doc.template-bold .inv-totals { display: flex; justify-content: flex-end; margin-bottom: 2rem; }
.invoice-doc.template-bold .inv-totals-table { width: 280px; }
.invoice-doc.template-bold .inv-totals-row { display: flex; justify-content: space-between; padding: .4rem 0; font-size: .9rem; color: #555; border-bottom: 1px solid #ffe8e0; }
.invoice-doc.template-bold .inv-totals-row.grand { background: #FF6B35; color: #fff; padding: .7rem 1rem; border-radius: 6px; font-weight: 800; font-size: 1.1rem; }
.invoice-doc.template-bold .inv-footer { background: #1a1a1a; color: #fff; padding: 1.25rem 2.5rem; font-size: .78rem; display: flex; justify-content: space-between; }

/* ---- TEMPLATE: Ocean ---- */
.invoice-doc.template-ocean .inv-header { background: linear-gradient(135deg, #006994, #00b4d8); padding: 2.5rem; display: flex; justify-content: space-between; align-items: flex-start; }
.invoice-doc.template-ocean .inv-logo-text { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.5rem; color: #fff; }
.invoice-doc.template-ocean .inv-title { font-family: 'Syne', sans-serif; font-size: 1.8rem; font-weight: 800; color: #fff; }
.invoice-doc.template-ocean .inv-number { color: rgba(255,255,255,.6); }
.invoice-doc.template-ocean .inv-body { padding: 2rem 2.5rem; }
.invoice-doc.template-ocean .inv-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.invoice-doc.template-ocean .inv-meta-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .07em; color: #006994; margin-bottom: .2rem; font-weight: 700; }
.invoice-doc.template-ocean .inv-meta-value { font-size: .9rem; color: #1a2b3c; }
.invoice-doc.template-ocean .inv-table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; }
.invoice-doc.template-ocean .inv-table thead th { background: #e8f4f8; padding: .65rem 1rem; text-align: left; font-size: .72rem; font-weight: 700; text-transform: uppercase; color: #006994; border-bottom: 2px solid #00b4d8; }
.invoice-doc.template-ocean .inv-table tbody td { padding: .8rem 1rem; border-bottom: 1px solid #e8f4f8; font-size: .9rem; }
.invoice-doc.template-ocean .inv-totals { display: flex; justify-content: flex-end; margin-bottom: 2rem; }
.invoice-doc.template-ocean .inv-totals-table { width: 280px; }
.invoice-doc.template-ocean .inv-totals-row { display: flex; justify-content: space-between; padding: .4rem 0; font-size: .9rem; color: #555; border-bottom: 1px solid #e8f4f8; }
.invoice-doc.template-ocean .inv-totals-row.grand { background: linear-gradient(135deg,#006994,#00b4d8); color: #fff; padding: .7rem 1rem; border-radius: 6px; font-weight: 800; font-size: 1.05rem; }
.invoice-doc.template-ocean .inv-footer { background: #e8f4f8; padding: 1.25rem 2.5rem; border-top: 2px solid #00b4d8; font-size: .78rem; color: #006994; display: flex; justify-content: space-between; }

/* ===== STATUS CHIP in invoice ===== */
.inv-status-paid { background: rgba(46,204,113,.15); color: #27ae60; }
.inv-status-unpaid { background: rgba(243,156,18,.15); color: #d68910; }
.inv-status-overdue { background: rgba(231,76,60,.15); color: #c0392b; }

/* =============================================
   SETTINGS PAGE
   ============================================= */
.settings-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 1.25rem; }

/* Theme Grid */
.theme-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: .625rem; }
.theme-swatch {
  aspect-ratio: 1;
  border-radius: 10px;
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}
.theme-swatch:hover { transform: scale(1.05); }
.theme-swatch.active { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.theme-swatch .swatch-inner { width: 100%; height: 100%; display: flex; flex-direction: column; }
.theme-swatch-label { position: absolute; bottom: 0; left: 0; right: 0; background: rgba(0,0,0,.5); color: #fff; font-size: .6rem; font-weight: 700; text-align: center; padding: .2rem; letter-spacing: .05em; text-transform: uppercase; }

/* Template Grid */
.template-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: .75rem; }
.template-card {
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition);
}
.template-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.template-card.active { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.template-thumb { height: 80px; position: relative; overflow: hidden; }
.template-name { font-size: .7rem; font-weight: 700; text-align: center; padding: .4rem; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); background: var(--bg-3); }

/* =============================================
   MODAL
   ============================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 1.5rem;
  overflow-y: auto;
}

.modal-box {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 820px;
  box-shadow: var(--shadow-lg);
  animation: modalIn .2s ease both;
  overflow: hidden;
}
@keyframes modalIn { from { opacity:0; transform:scale(.96) translateY(10px); } to { opacity:1; transform:none; } }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
  flex-wrap: wrap;
}
.modal-header h3 { font-size: 1rem; font-weight: 700; }
.modal-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: .375rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  transition: all var(--transition);
}
.modal-close:hover { background: rgba(231,76,60,.1); color: var(--danger); }
.modal-body { padding: 1.25rem; background: #e8e8e8; max-height: 80vh; overflow-y: auto; }

/* =============================================
   TOAST
   ============================================= */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .875rem 1.25rem;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text);
  z-index: 999;
  box-shadow: var(--shadow-lg);
  animation: toastIn .25s ease both;
  max-width: 320px;
}
@keyframes toastIn { from { opacity:0; transform: translateY(10px); } to { opacity:1; transform:none; } }
.toast.success { border-color: rgba(46,204,113,.4); background: rgba(46,204,113,.1); color: var(--success); }
.toast.error { border-color: rgba(231,76,60,.4); background: rgba(231,76,60,.1); color: var(--danger); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .invoice-layout { grid-template-columns: 1fr; }
  .invoice-preview-panel { position: static; max-height: none; }
  .three-col { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 260px; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .sidebar-close { display: flex; }
  .sidebar-overlay.open { display: block; }
  .main-content { margin-left: 0; }
  .menu-toggle { display: flex; }
  .topbar-search { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .two-col, .three-col { grid-template-columns: 1fr; }
  .page-container { padding: 1.25rem 1rem; }
  .topbar { padding: 0 1rem; }
  .topbar-date { display: none; }
  .settings-grid { grid-template-columns: 1fr; }
  .theme-grid { grid-template-columns: repeat(5, 1fr); }
  .totals-grid { grid-template-columns: 1fr; }
  .modal-overlay { padding: .75rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .theme-grid { grid-template-columns: repeat(5, 1fr); }
  .invoice-doc .inv-header { flex-direction: column; gap: 1rem; }
  .invoice-doc .inv-meta-grid { grid-template-columns: 1fr; gap: 1rem; }
  .page-header { flex-direction: column; align-items: flex-start; }
  .user-chip span { display: none; }
}

/* =============================================
   TEMPLATE THUMBNAIL PREVIEWS
   ============================================= */
.t-thumb-modern { background: linear-gradient(135deg,#1a1b2e,#2d2e45); }
.t-thumb-classic { background: linear-gradient(135deg,#f5f0e8,#e8d8b8); }
.t-thumb-minimal { background: #fff; border-bottom: 3px solid #111; }
.t-thumb-bold { background: #FF6B35; }
.t-thumb-ocean { background: linear-gradient(135deg,#006994,#00b4d8); }
.t-thumb-purple { background: linear-gradient(135deg,#4a0080,#9b30d8); }
.t-thumb-gold { background: linear-gradient(135deg,#2a1f00,#d4a72c); }
.t-thumb-rose { background: linear-gradient(135deg,#4a0020,#e05080); }
.t-thumb-forest { background: linear-gradient(135deg,#1a3a1a,#4a8a4a); }
.t-thumb-slate { background: linear-gradient(135deg,#2a3040,#4a5570); }
.t-thumb-coral { background: linear-gradient(135deg,#ff6b6b,#ffd56b); }
.t-thumb-midnight { background: #05060e; border: 1px solid #2020ff; }
.t-thumb-paper { background: #f5f0e0; border-bottom: 3px solid #8B4513; }
.t-thumb-cyber { background: #0d0d0d; border: 1px solid #00ff88; }
.t-thumb-luxury { background: linear-gradient(135deg,#1a1510,#c8a46e); }
.t-thumb-nordic { background: linear-gradient(135deg,#2c3e50,#4fc3f7); }
.t-thumb-sakura { background: linear-gradient(135deg,#ffe4e8,#ffb3c6); }
.t-thumb-terra { background: linear-gradient(135deg,#5c2a00,#d4622a); }
.t-thumb-electric { background: linear-gradient(135deg,#0d0030,#6c00ff); }
.t-thumb-fresh { background: linear-gradient(135deg,#e8fff0,#4adb8a); }

/* Pulse animation for active nav */
@keyframes navPulse { 0%,100%{opacity:1} 50%{opacity:.7} }
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 25%;
  bottom: 25%;
  width: 3px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

/* Glass theme special styles */
[data-theme="glass"] body { background: #1a1060; }
[data-theme="glass"] .sidebar { backdrop-filter: blur(20px); border-right: 1px solid rgba(255,255,255,.1); }
[data-theme="glass"] .form-card, [data-theme="glass"] .stat-card, [data-theme="glass"] .section-card { backdrop-filter: blur(12px); }

/* Print Styles */
@media print {
  .app-shell, .login-screen { display: none; }
  body { background: #fff; }
}