/* ============================================================
   S.C.M — style.css
   Design: Preto + Vermelho | Fonte: Inter | Responsivo
   ============================================================ */

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black:       #0a0a0a;
  --black-2:     #111111;
  --black-3:     #1a1a1a;
  --black-4:     #222222;
  --black-5:     #2d2d2d;
  --red:         #E53935;
  --red-dark:    #B71C1C;
  --red-light:   #EF5350;
  --red-glow:    rgba(229,57,53,.18);
  --white:       #ffffff;
  --white-60:    rgba(255,255,255,.6);
  --white-20:    rgba(255,255,255,.12);
  --white-08:    rgba(255,255,255,.06);
  --sidebar-w:   260px;
  --topbar-h:    64px;
  --radius:      12px;
  --radius-sm:   8px;
  --radius-lg:   18px;
  --shadow:      0 4px 24px rgba(0,0,0,.45);
  --shadow-red:  0 4px 24px rgba(229,57,53,.28);
  --trans:       .2s ease;
  --font:        'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--black);
  color: var(--white);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }
input, textarea, select {
  font-family: var(--font);
  background: var(--black-4);
  border: 1px solid var(--white-20);
  color: var(--white);
  border-radius: var(--radius-sm);
  padding: .65rem 1rem;
  width: 100%;
  transition: border-color var(--trans), box-shadow var(--trans);
  outline: none;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px var(--red-glow);
}
input::placeholder, textarea::placeholder { color: var(--white-60); }
select option { background: var(--black-3); }
ul { list-style: none; }

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--black-3); }
::-webkit-scrollbar-thumb { background: var(--black-5); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--red-dark); }

/* ── Layout com Sidebar ───────────────────────────────────── */
body.has-sidebar { display: flex; overflow-x: hidden; }

/* ── Sidebar ──────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--black-2);
  border-right: 1px solid var(--white-08);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: transform var(--trans);
  overflow-y: auto;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 1.2rem 1rem;
  border-bottom: 1px solid var(--white-08);
}
.logo-link {
  display: flex; align-items: center; gap: .6rem;
  font-size: 1.5rem; font-weight: 900; letter-spacing: .06em;
}
.logo-icon { color: var(--red); font-size: 1.7rem; }
.logo-accent { color: var(--red); }
.sidebar-close {
  display: none;
  color: var(--white-60); font-size: 1.2rem;
  padding: .3rem; border-radius: 6px;
  transition: color var(--trans);
}
.sidebar-close:hover { color: var(--white); }

.sidebar-profile {
  display: flex; align-items: center; gap: .8rem;
  padding: 1.1rem 1.2rem;
  border-bottom: 1px solid var(--white-08);
}
.profile-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--red-dark);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .95rem;
  flex-shrink: 0; overflow: hidden;
}
.profile-avatar img { width: 100%; height: 100%; object-fit: cover; }
.profile-name { font-weight: 600; font-size: .9rem; }
.profile-role { font-size: .72rem; color: var(--white-60); }

.sidebar-nav { flex: 1; padding: .8rem 0; }
.nav-section-label {
  font-size: .65rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--white-60);
  padding: .9rem 1.2rem .3rem;
}
.nav-item a {
  display: flex; align-items: center; gap: .75rem;
  padding: .65rem 1.2rem;
  border-radius: 0;
  font-size: .87rem; font-weight: 500;
  color: var(--white-60);
  transition: color var(--trans), background var(--trans);
  position: relative;
}
.nav-item a i { width: 18px; text-align: center; font-size: .9rem; }
.nav-item a:hover { color: var(--white); background: var(--white-08); }
.nav-item.active a {
  color: var(--white);
  background: var(--red-glow);
}
.nav-item.active a::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--red); border-radius: 0 3px 3px 0;
}
.nav-logout { color: var(--red) !important; }
.nav-logout:hover { background: rgba(229,57,53,.1) !important; }

.sidebar-footer {
  padding: .9rem 1.2rem;
  font-size: .72rem; color: var(--white-60);
  border-top: 1px solid var(--white-08);
}

/* ── Overlay mobile ───────────────────────────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 190;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(2px);
}
.sidebar-overlay.visible { display: block; }

/* ── Main Wrapper ─────────────────────────────────────────── */
.main-wrapper {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-width: 0;
}

/* ── Topbar ───────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--black-2);
  border-bottom: 1px solid var(--white-08);
  display: flex; align-items: center;
  padding: 0 1.5rem; gap: 1rem;
  position: sticky; top: 0; z-index: 100;
}
.topbar-toggle {
  display: none;
  color: var(--white-60); font-size: 1.2rem;
  padding: .4rem; border-radius: 6px;
  transition: color var(--trans);
}
.topbar-toggle:hover { color: var(--white); }
.topbar-title {
  font-size: 1rem; font-weight: 600;
  flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar-actions { display: flex; align-items: center; gap: .5rem; }
.topbar-btn {
  position: relative;
  color: var(--white-60); font-size: 1rem;
  padding: .5rem; border-radius: 8px;
  transition: color var(--trans), background var(--trans);
}
.topbar-btn:hover { color: var(--white); background: var(--white-08); }
.notif-badge {
  position: absolute; top: 2px; right: 2px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--red); font-size: .6rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.topbar-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--red-dark);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .8rem; overflow: hidden;
  border: 2px solid var(--white-20);
}
.topbar-avatar img { width: 100%; height: 100%; object-fit: cover; }

/* ── Main Content ─────────────────────────────────────────── */
.main-content {
  flex: 1; padding: 2rem 1.75rem;
  max-width: 1280px; width: 100%;
}

/* ── Auth Layout ──────────────────────────────────────────── */
body.auth-layout {
  display: flex; align-items: center; justify-content: center;
  background: var(--black);
  min-height: 100vh;
  padding: 1rem;
}
.auth-wrapper {
  width: 100%; max-width: 440px;
}
.auth-card {
  background: var(--black-2);
  border: 1px solid var(--white-08);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow);
}
.auth-logo {
  text-align: center; margin-bottom: 2rem;
  font-size: 2.2rem; font-weight: 900; letter-spacing: .1em;
}
.auth-logo i { color: var(--red); display: block; font-size: 2.8rem; margin-bottom: .5rem; }
.auth-logo .logo-accent { color: var(--red); }
.auth-title { font-size: 1.2rem; font-weight: 700; margin-bottom: .25rem; }
.auth-sub { font-size: .85rem; color: var(--white-60); margin-bottom: 1.8rem; }

/* ── Botões ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem; padding: .7rem 1.4rem;
  border-radius: var(--radius-sm); font-weight: 600;
  font-size: .875rem; transition: all var(--trans); cursor: pointer;
  font-family: var(--font); border: none; text-align: center;
}
.btn-primary {
  background: var(--red); color: var(--white);
  box-shadow: var(--shadow-red);
}
.btn-primary:hover { background: var(--red-light); box-shadow: 0 6px 28px rgba(229,57,53,.4); }
.btn-outline {
  background: transparent; color: var(--white);
  border: 1px solid var(--white-20);
}
.btn-outline:hover { border-color: var(--red); color: var(--red); }
.btn-ghost { background: var(--white-08); color: var(--white); }
.btn-ghost:hover { background: var(--white-20); }
.btn-danger { background: var(--red-dark); color: var(--white); }
.btn-danger:hover { background: var(--red); }
.btn-sm { padding: .45rem 1rem; font-size: .8rem; }
.btn-lg { padding: .9rem 2rem; font-size: 1rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .45; pointer-events: none; }

/* ── Form Group ───────────────────────────────────────────── */
.form-group { margin-bottom: 1.2rem; }
.form-label {
  display: block; margin-bottom: .4rem;
  font-size: .82rem; font-weight: 600; color: var(--white-60);
}
.form-hint { font-size: .75rem; color: var(--white-60); margin-top: .3rem; }
.form-error { font-size: .75rem; color: var(--red-light); margin-top: .3rem; }
.input-icon { position: relative; }
.input-icon i {
  position: absolute; left: .85rem; top: 50%; transform: translateY(-50%);
  color: var(--white-60); font-size: .85rem; pointer-events: none;
}
.input-icon input { padding-left: 2.4rem; }

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--black-2);
  border: 1px solid var(--white-08);
  border-radius: var(--radius);
  overflow: hidden;
}
.card-body { padding: 1.4rem; }
.card-header {
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid var(--white-08);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.card-title { font-size: 1rem; font-weight: 700; }
.card-footer {
  padding: 1rem 1.4rem;
  border-top: 1px solid var(--white-08);
  display: flex; align-items: center; gap: .75rem;
}

/* ── Training Card ────────────────────────────────────────── */
.training-card {
  background: var(--black-2);
  border: 1px solid var(--white-08);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
  cursor: pointer;
  display: flex; flex-direction: column;
}
.training-card:hover {
  border-color: var(--red);
  transform: translateY(-3px);
  box-shadow: var(--shadow-red);
}
.training-thumb {
  width: 100%; aspect-ratio: 16/9;
  background: var(--black-4);
  position: relative; overflow: hidden;
}
.training-thumb img { width: 100%; height: 100%; object-fit: cover; }
.training-thumb .play-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.4);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity var(--trans);
}
.training-thumb .play-overlay i { font-size: 2.5rem; color: var(--white); }
.training-card:hover .play-overlay { opacity: 1; }
.training-badge {
  position: absolute; top: .6rem; left: .6rem;
  background: var(--red); color: var(--white);
  font-size: .65rem; font-weight: 700; letter-spacing: .05em;
  padding: .2rem .55rem; border-radius: 4px; text-transform: uppercase;
}
.training-info { padding: 1rem 1.1rem; flex: 1; }
.training-cat {
  font-size: .7rem; color: var(--red); font-weight: 700;
  text-transform: uppercase; letter-spacing: .08em; margin-bottom: .3rem;
}
.training-title { font-size: .95rem; font-weight: 700; margin-bottom: .5rem; line-height: 1.4; }
.training-meta {
  display: flex; align-items: center; gap: 1rem;
  font-size: .75rem; color: var(--white-60);
}
.training-meta i { color: var(--red); margin-right: .25rem; }

/* ── Grid ─────────────────────────────────────────────────── */
.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

/* ── Stats ────────────────────────────────────────────────── */
.stat-card {
  background: var(--black-2);
  border: 1px solid var(--white-08);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
  display: flex; align-items: center; gap: 1rem;
}
.stat-icon {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  background: var(--red-glow);
  display: flex; align-items: center; justify-content: center;
  color: var(--red); font-size: 1.2rem; flex-shrink: 0;
}
.stat-value { font-size: 1.6rem; font-weight: 800; line-height: 1; }
.stat-label { font-size: .78rem; color: var(--white-60); margin-top: .2rem; }

/* ── Page Header ──────────────────────────────────────────── */
.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem; margin-bottom: 1.75rem;
}
.page-title { font-size: 1.5rem; font-weight: 800; }
.page-subtitle { font-size: .875rem; color: var(--white-60); margin-top: .25rem; }
.page-actions { display: flex; gap: .75rem; flex-wrap: wrap; }

/* ── Badges / Pills ───────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .2rem .7rem; border-radius: 99px;
  font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
}
.badge-red     { background: var(--red-glow);           color: var(--red-light); }
.badge-green   { background: rgba(34,197,94,.12);       color: #4ade80; }
.badge-yellow  { background: rgba(234,179,8,.12);       color: #facc15; }
.badge-gray    { background: var(--white-08);           color: var(--white-60); }

/* ── Category Pills ───────────────────────────────────────── */
.cat-pills { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.cat-pill {
  padding: .4rem 1rem; border-radius: 99px;
  font-size: .8rem; font-weight: 600;
  background: var(--black-3); color: var(--white-60);
  border: 1px solid var(--white-08);
  cursor: pointer; transition: all var(--trans);
}
.cat-pill:hover, .cat-pill.active {
  background: var(--red); color: var(--white);
  border-color: var(--red); box-shadow: var(--shadow-red);
}

/* ── Modal ────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,.75); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.modal-box {
  background: var(--black-2);
  border: 1px solid var(--white-08);
  border-radius: var(--radius-lg);
  width: 100%; max-width: 680px;
  max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow);
  animation: modalIn .25s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(20px) scale(.97); }
  to   { opacity: 1; transform: none; }
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.2rem 1.4rem;
  border-bottom: 1px solid var(--white-08);
}
.modal-title { font-size: 1.05rem; font-weight: 700; }
.modal-close {
  color: var(--white-60); font-size: 1.1rem; padding: .35rem;
  border-radius: 6px; transition: color var(--trans);
}
.modal-close:hover { color: var(--white); }
.modal-body { padding: 1.4rem; }
.modal-footer {
  padding: 1rem 1.4rem;
  border-top: 1px solid var(--white-08);
  display: flex; justify-content: flex-end; gap: .75rem;
}

/* ── Player ───────────────────────────────────────────────── */
.modal-player { max-width: 780px; }
.player-body { padding: 1.25rem 1.4rem; }
.player-video-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--black);
  aspect-ratio: 16/9;
  margin-bottom: 1.25rem;
}
.player-video-wrap iframe,
.player-video-wrap video { width: 100%; height: 100%; border: none; }
.player-timer {
  position: relative;
  width: 130px; height: 130px;
  margin: 0 auto 1.25rem;
}
.timer-ring { width: 100%; height: 100%; transform: rotate(-90deg); }
.timer-track { fill: none; stroke: var(--black-5); stroke-width: 8; }
.timer-progress {
  fill: none; stroke: var(--red); stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset .9s linear;
}
.timer-label {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: .1rem;
}
#timerDisplay { font-size: 1.5rem; font-weight: 800; }
#timerPhase   { font-size: .7rem; color: var(--white-60); text-transform: uppercase; }
.player-controls {
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  margin-bottom: 1.25rem;
}
.ctrl-btn {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--black-4); color: var(--white);
  font-size: 1rem; display: flex; align-items: center; justify-content: center;
  transition: background var(--trans);
}
.ctrl-btn:hover { background: var(--black-5); }
.ctrl-main {
  width: 56px; height: 56px;
  background: var(--red); font-size: 1.2rem;
  box-shadow: var(--shadow-red);
}
.ctrl-main:hover { background: var(--red-light); }
.player-description {
  font-size: .85rem; color: var(--white-60);
  line-height: 1.7; text-align: center;
}

/* ── Toast ────────────────────────────────────────────────── */
.toast-container {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  z-index: 9999; display: flex; flex-direction: column; gap: .6rem;
}
.toast {
  min-width: 260px; max-width: 360px;
  padding: .85rem 1.1rem;
  background: var(--black-3); border: 1px solid var(--white-08);
  border-radius: var(--radius-sm); box-shadow: var(--shadow);
  display: flex; align-items: center; gap: .75rem;
  font-size: .85rem; animation: toastIn .25s ease;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: none; }
}
.toast.success { border-left: 3px solid #4ade80; }
.toast.error   { border-left: 3px solid var(--red); }
.toast.info    { border-left: 3px solid #60a5fa; }
.toast i { font-size: 1rem; }
.toast.success i { color: #4ade80; }
.toast.error   i { color: var(--red-light); }
.toast.info    i { color: #60a5fa; }

/* ── Table ────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
th {
  text-align: left; padding: .75rem 1rem;
  font-size: .72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .08em;
  color: var(--white-60);
  border-bottom: 1px solid var(--white-08);
}
td {
  padding: .8rem 1rem;
  border-bottom: 1px solid var(--white-08);
  color: var(--white-60);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--white-08); color: var(--white); }

/* ── Alert ────────────────────────────────────────────────── */
.alert {
  padding: .9rem 1.1rem; border-radius: var(--radius-sm);
  font-size: .875rem; display: flex; align-items: flex-start; gap: .7rem;
  margin-bottom: 1.2rem;
}
.alert-error   { background: rgba(229,57,53,.1); border: 1px solid rgba(229,57,53,.3); color: var(--red-light); }
.alert-success { background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.3); color: #4ade80; }
.alert-info    { background: rgba(96,165,250,.1); border: 1px solid rgba(96,165,250,.3); color: #93c5fd; }

/* ── Schedule / Week ──────────────────────────────────────── */
.week-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: .5rem;
}
.week-day {
  background: var(--black-3); border: 1px solid var(--white-08);
  border-radius: var(--radius-sm); padding: .8rem .6rem;
  text-align: center; cursor: pointer;
  transition: all var(--trans);
}
.week-day:hover { border-color: var(--red); }
.week-day.active { background: var(--red-glow); border-color: var(--red); }
.week-day .day-name { font-size: .7rem; font-weight: 700; text-transform: uppercase; color: var(--white-60); }
.week-day .day-num  { font-size: 1.2rem; font-weight: 800; margin-top: .1rem; }
.week-day.active .day-name { color: var(--red-light); }

/* ── Progress ring ────────────────────────────────────────── */
.progress-ring { display: flex; align-items: center; gap: 1rem; }
.prog-ring-wrap { position: relative; width: 72px; height: 72px; flex-shrink: 0; }
.prog-ring-wrap svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.prog-ring-wrap circle { fill: none; stroke-width: 7; }
.prog-ring-track { stroke: var(--black-5); }
.prog-ring-fill  { stroke: var(--red); stroke-linecap: round; transition: stroke-dashoffset .6s ease; }
.prog-ring-label {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem; font-weight: 800;
}

/* ── Drag Handle (rotina builder) ─────────────────────────── */
.drag-handle {
  cursor: grab; color: var(--white-60); padding: 0 .5rem;
  font-size: 1.1rem;
}
.drag-handle:active { cursor: grabbing; }
.routine-item {
  display: flex; align-items: center; gap: .8rem;
  background: var(--black-3); border: 1px solid var(--white-08);
  border-radius: var(--radius-sm); padding: .7rem 1rem;
  margin-bottom: .5rem; transition: border-color var(--trans);
}
.routine-item:hover { border-color: var(--white-20); }
.routine-item.dragging { opacity: .4; }

/* ── Empty State ──────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 4rem 1rem;
  color: var(--white-60);
}
.empty-state i {
  font-size: 3rem; color: var(--black-5); margin-bottom: 1rem; display: block;
}
.empty-state h3 { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: .5rem; }
.empty-state p { font-size: .875rem; }

/* ── Divider ──────────────────────────────────────────────── */
.divider { height: 1px; background: var(--white-08); margin: 1.5rem 0; }
.divider-text {
  display: flex; align-items: center; gap: 1rem;
  color: var(--white-60); font-size: .8rem;
}
.divider-text::before, .divider-text::after {
  content: ''; flex: 1; height: 1px; background: var(--white-08);
}

/* ── Utilities ────────────────────────────────────────────── */
.text-red    { color: var(--red); }
.text-muted  { color: var(--white-60); }
.text-sm     { font-size: .85rem; }
.text-xs     { font-size: .75rem; }
.fw-700      { font-weight: 700; }
.fw-800      { font-weight: 800; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 260px; }

  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: flex; }
  .main-wrapper { margin-left: 0; }
  .topbar-toggle { display: flex; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-auto { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }

  .main-content { padding: 1.25rem 1rem; }
  .page-header { flex-direction: column; }
  .week-grid { grid-template-columns: repeat(4, 1fr); }

  .modal-box { max-height: 95vh; border-radius: var(--radius); }
}

@media (max-width: 480px) {
  .week-grid { grid-template-columns: repeat(3, 1fr); }
  .auth-card { padding: 1.75rem 1.25rem; }
  .toast-container { right: .75rem; bottom: .75rem; left: .75rem; }
  .toast { min-width: 0; width: 100%; }
}