/* FinTrack — Sistema visual (minimalista · limpio · moderno) con tema claro/oscuro */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ── DESIGN TOKENS ──────────────────────────────────────────
   Los nombres de variable se conservan para que todas las páginas
   (incluidos los estilos inline) hereden el tema automáticamente.   */
:root,
:root[data-theme="light"] {
  --bg:            #F6F7F9;
  --bg-card:       #FFFFFF;
  --bg-subtle:     #F1F3F5;
  --bg-elevated:   #FFFFFF;
  --border:        #E7E9ED;
  --border-strong: #D6DAE0;
  --text:          #16181D;
  --text-soft:     #3F434C;
  --text-muted:    #71757E;

  --accent:        #4F46E5;
  --accent-hover:  #4338CA;
  --accent-light:  #EEF0FE;
  --accent-contrast:#FFFFFF;

  --success:       #14804A;
  --success-bg:    #E3F5EA;
  --danger:        #D02F2F;
  --danger-bg:     #FBEBEB;
  --warning:       #B45309;
  --warning-bg:    #FCF1DD;

  --sidebar-w:     244px;
  --radius:        14px;
  --radius-sm:     9px;
  --radius-pill:   999px;

  --shadow:        0 1px 2px rgba(16,24,40,.04), 0 1px 3px rgba(16,24,40,.06);
  --shadow-md:     0 8px 24px rgba(16,24,40,.10), 0 2px 6px rgba(16,24,40,.06);
  --ring:          0 0 0 3px rgba(79,70,229,.18);
}

:root[data-theme="dark"] {
  --bg:            #0E1014;
  --bg-card:       #171A21;
  --bg-subtle:     #1E222B;
  --bg-elevated:   #1C2029;
  --border:        #272C36;
  --border-strong: #353B47;
  --text:          #E7E9EE;
  --text-soft:     #B6BAC4;
  --text-muted:    #8A909C;

  --accent:        #7C83FF;
  --accent-hover:  #969BFF;
  --accent-light:  #20232F;
  --accent-contrast:#0E1014;

  --success:       #4ADE80;
  --success-bg:    #16261E;
  --danger:        #F87171;
  --danger-bg:     #2A1A1C;
  --warning:       #FBBF24;
  --warning-bg:    #2A2114;

  --shadow:        0 1px 2px rgba(0,0,0,.40), 0 1px 3px rgba(0,0,0,.30);
  --shadow-md:     0 12px 32px rgba(0,0,0,.55), 0 2px 8px rgba(0,0,0,.40);
  --ring:          0 0 0 3px rgba(124,131,255,.28);
}

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

html { font-size: 15px; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background .25s ease, color .25s ease;
}

::selection { background: var(--accent-light); color: var(--accent); }

/* Scrollbar discreto */
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 99px; border: 3px solid transparent; background-clip: content-box; }
*::-webkit-scrollbar-thumb:hover { background: var(--text-muted); background-clip: content-box; }

/* ── LAYOUT ─────────────────────────────── */
.app-layout { display: flex; min-height: 100vh; }

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform .25s ease, background .25s ease, border-color .25s ease;
}

.sidebar-logo { padding: 1.5rem 1.25rem 1.1rem; }
.sidebar-logo h1 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.4px;
  display: flex; align-items: center; gap: .5rem;
}
.sidebar-logo h1::before {
  content: ""; width: 11px; height: 11px; border-radius: 4px;
  background: var(--accent); box-shadow: 0 0 0 4px var(--accent-light);
}
.sidebar-logo span { display: block; font-weight: 400; color: var(--text-muted); font-size: .76rem; margin-top: .35rem; padding-left: .05rem; }

.sidebar-nav { flex: 1; padding: .5rem .6rem; overflow-y: auto; }
.nav-section {
  padding: .9rem .65rem .35rem; font-size: .68rem; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: .09em;
}
.nav-link {
  display: flex; align-items: center; gap: .7rem;
  padding: .55rem .65rem;
  margin: 1px 0;
  color: var(--text-soft);
  text-decoration: none;
  font-size: .875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background .15s, color .15s;
}
.nav-link svg { width: 18px; height: 18px; flex-shrink: 0; opacity: .85; }
.nav-link:hover  { background: var(--bg-subtle); color: var(--text); }
.nav-link.active { background: var(--accent-light); color: var(--accent); font-weight: 600; }
.nav-link.active svg { opacity: 1; }

.sidebar-footer {
  padding: .9rem 1rem;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: .6rem;
  font-size: .8rem;
  color: var(--text-muted);
}
.sidebar-user { font-weight: 600; color: var(--text); font-size: .85rem; line-height: 1.2; flex: 1; min-width: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#btn-logout {
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: .78rem; padding: .25rem .35rem; border-radius: 6px;
  transition: color .15s, background .15s;
}
#btn-logout:hover { color: var(--danger); background: var(--danger-bg); }

/* Theme toggle */
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-subtle); color: var(--text-soft);
  cursor: pointer; transition: color .15s, background .15s, border-color .15s;
  flex-shrink: 0;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* MAIN CONTENT */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 2.25rem 2.5rem;
  min-width: 0;
  max-width: 1500px;
}

.page-header { margin-bottom: 1.75rem; }
.page-header h2 { font-size: 1.5rem; font-weight: 700; letter-spacing: -.5px; }
.page-header p  { color: var(--text-muted); font-size: .9rem; margin-top: .25rem; }

/* ── CARDS ──────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.35rem;
  transition: background .25s ease, border-color .25s ease, box-shadow .2s ease;
}
.card-title {
  font-size: .76rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .55rem;
}
.card-value {
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.5px;
}
.card-sub { font-size: .8rem; color: var(--text-muted); margin-top: .3rem; }

/* ── GRIDS ──────────────────────────────── */
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.1rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.1rem; }

@media (max-width: 1100px) { .grid-4 { grid-template-columns: repeat(2,1fr); } }
@media (max-width:  700px) { .grid-4,.grid-2,.grid-3 { grid-template-columns: 1fr; } }

/* ── TABLES ─────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
th { text-align: left; padding: .7rem .85rem; color: var(--text-muted);
  font-weight: 600; font-size: .72rem; text-transform: uppercase;
  letter-spacing: .05em; border-bottom: 1px solid var(--border); }
td { padding: .7rem .85rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background .12s; }
tbody tr:hover td { background: var(--bg-subtle); }

/* ── BADGES ─────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .2rem .6rem;
  border-radius: var(--radius-pill);
  font-size: .72rem;
  font-weight: 600;
  line-height: 1.4;
}
.badge-green  { background: var(--success-bg); color: var(--success); }
.badge-red    { background: var(--danger-bg);  color: var(--danger);  }
.badge-blue   { background: var(--accent-light); color: var(--accent); }
.badge-yellow { background: var(--warning-bg); color: var(--warning); }

/* ── PROGRESS BAR ───────────────────────── */
.progress-bar-wrap { background: var(--bg-subtle); border-radius: 99px; height: 8px; overflow: hidden; }
.progress-bar      { height: 100%; border-radius: 99px; background: var(--accent);
  transition: width .4s ease; }
.progress-bar.over { background: var(--danger); }

/* ── BUTTONS ────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .55rem 1.05rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s, color .15s, border-color .15s, box-shadow .15s, transform .05s;
  white-space: nowrap;
}
.btn svg { width: 15px; height: 15px; flex-shrink: 0; }
.btn:active { transform: translateY(.5px); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn-primary   { background: var(--accent); color: var(--accent-contrast); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-subtle); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--border-strong); background: var(--bg-card); }
.btn-danger    { background: var(--danger-bg); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm        { padding: .35rem .75rem; font-size: .8rem; }
.btn-icon      { padding: .4rem; background: var(--bg-card); border: 1px solid var(--border); color: var(--text-soft); }
.btn-icon:hover { border-color: var(--accent); color: var(--accent); }
.btn-icon svg  { width: 15px; height: 15px; }

/* ── FORMS ──────────────────────────────── */
.form-group { margin-bottom: .95rem; }
label { display: block; font-size: .8rem; font-weight: 500; margin-bottom: .35rem; color: var(--text-soft); }
input, textarea, select {
  width: 100%;
  padding: .55rem .8rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: .875rem;
  background: var(--bg-card);
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
input::placeholder, textarea::placeholder { color: var(--text-muted); }
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--ring);
}

/* Select personalizado (flecha SVG via currentColor-friendly stroke) */
select {
  padding-right: 2.25rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2371757E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .7rem center;
  background-size: 1rem;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}
select:hover { border-color: var(--accent); }
select option { background: var(--bg-card); color: var(--text); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .85rem; }

/* ── MODAL ──────────────────────────────── */
.modal-backdrop {
  display: none;
  position: fixed; inset: 0;
  background: rgba(10,12,16,.55);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-backdrop.open { display: flex; animation: fadeIn .15s ease; }
.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 480px;
  padding: 1.75rem;
  position: relative;
  animation: popIn .18s cubic-bezier(.2,.8,.3,1);
}
.modal h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 1.25rem; letter-spacing: -.3px; }
.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  width: 30px; height: 30px; border-radius: 8px;
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 1.3rem; line-height: 1;
  transition: background .15s, color .15s;
}
.modal-close:hover { background: var(--bg-subtle); color: var(--text); }
.modal-footer { display: flex; justify-content: flex-end; gap: .6rem; margin-top: 1.25rem; }

@keyframes fadeIn { from { opacity: 0; } }
@keyframes popIn  { from { opacity: 0; transform: translateY(8px) scale(.98); } }

/* ── PERIOD SELECTOR ────────────────────── */
.period-selector { display: flex; align-items: center; gap: .5rem; }
.period-selector label { margin-bottom: 0; font-size: .8rem; color: var(--text-muted); white-space: nowrap; }
.period-selector select { width: auto; }

/* ── WEEK TABS ──────────────────────────── */
.week-tabs { display: flex; gap: .35rem; margin-bottom: 1rem; flex-wrap: wrap; }
.tab-btn {
  padding: .4rem .9rem; border-radius: var(--radius-pill); border: 1px solid var(--border);
  background: var(--bg-card); cursor: pointer; font-size: .8rem; font-weight: 500;
  color: var(--text-muted); transition: all .15s;
}
.tab-btn:hover { border-color: var(--accent); color: var(--accent); }
.tab-btn.active { background: var(--accent); color: var(--accent-contrast); border-color: var(--accent); }

/* ── COLOR / TEXT HELPERS ───────────────── */
.text-success { color: var(--success); }
.text-danger  { color: var(--danger);  }
.text-muted   { color: var(--text-muted); }
.text-accent  { color: var(--accent); }
.text-right   { text-align: right; }
.fw-600       { font-weight: 600; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1.1rem; }
.mt-3 { margin-top: 1.6rem; }
.mb-1 { margin-bottom: 1.1rem; }

/* ── AUTH ───────────────────────────────── */
.auth-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(900px 500px at 12% -5%, var(--accent-light), transparent 60%),
    var(--bg);
  padding: 1rem;
}
.auth-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
  width: 100%; max-width: 400px;
}
.auth-box h1 { font-size: 1.6rem; font-weight: 700; color: var(--text); margin-bottom: .3rem; letter-spacing: -.5px;
  display: flex; align-items: center; gap: .55rem; }
.auth-box h1::before {
  content: ""; width: 13px; height: 13px; border-radius: 5px;
  background: var(--accent); box-shadow: 0 0 0 4px var(--accent-light);
}
.auth-box p  { color: var(--text-muted); font-size: .875rem; margin-bottom: 1.5rem; }
.auth-toggle { text-align: center; margin-top: 1.1rem; font-size: .875rem; color: var(--text-muted); }
.auth-toggle a { color: var(--accent); cursor: pointer; font-weight: 600; text-decoration: none; }
.auth-toggle a:hover { text-decoration: underline; }
.auth-error { color: var(--danger); background: var(--danger-bg); border-radius: var(--radius-sm);
  padding: .55rem .8rem; font-size: .85rem; margin-bottom: 1rem; display: none; }

/* ── SPINNER ────────────────────────────── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── EMPTY STATE ────────────────────────── */
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--text-muted); }
.empty-state svg { width: 48px; height: 48px; margin-bottom: 1rem; opacity: .4; }

/* ── CHART CONTAINER ────────────────────── */
.chart-wrap { position: relative; }
.chart-wrap canvas { max-height: 280px; }

/* ── TOAST ──────────────────────────────── */
#toast-container {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  display: flex; flex-direction: column; gap: .5rem;
  z-index: 999;
}
.toast {
  background: var(--text);
  color: var(--bg-card);
  padding: .7rem 1.05rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: slideIn .2s ease;
  max-width: 320px;
}
.toast.success { background: var(--success); color: #fff; }
.toast.error   { background: var(--danger);  color: #fff; }
.toast.info    { background: var(--accent);  color: var(--accent-contrast); }
@keyframes slideIn { from { transform: translateX(20px); opacity: 0; } }

/* ── MOBILE MENU ────────────────────────── */
.menu-toggle {
  display: none;
  position: fixed; top: 1rem; left: 1rem; z-index: 300;
  background: var(--bg-card); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: .5rem; cursor: pointer; box-shadow: var(--shadow);
}
.menu-toggle svg { width: 20px; height: 20px; }

@media (max-width: 900px) { .main-content { padding: 1.75rem; } }
@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .sidebar { transform: translateX(-100%); box-shadow: var(--shadow-md); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 1rem; padding-top: 4rem; }
}