/* =====================================================================
   Farmacia Dr Nahúm — Diseño Profesional + Mobile-First
   ===================================================================== */

/* ===== VARIABLES ===== */
:root {
    --navy:        #0f2942;
    --navy-light:  #1a3a5c;
    --primary:     #1d6fa4;
    --primary-h:   #155d89;
    --emerald:     #059669;
    --emerald-h:   #047857;
    --amber:       #d97706;
    --rose:        #dc2626;
    --sky:         #0ea5e9;
    --bg:          #f1f5f9;
    --surface:     #ffffff;
    --border:      #e2e8f0;
    --text:        #1e293b;
    --muted:       #64748b;
    --sidebar-w:   260px;
    --nav-h:       58px;
    --bottom-nav-h: 64px;
    --radius:      12px;
    --radius-sm:   8px;
    --shadow:      0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
    --shadow-md:   0 4px 6px rgba(0,0,0,.07), 0 10px 30px rgba(0,0,0,.1);
    /* iPhone safe areas */
    --safe-top:    env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left:   env(safe-area-inset-left, 0px);
    --safe-right:  env(safe-area-inset-right, 0px);
}

/* ===== RESET / BASE ===== */
*, *::before, *::after { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: -apple-system, 'Segoe UI', system-ui, sans-serif;
    font-size: 1rem;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    min-height: -webkit-fill-available;
    display: flex;
    flex-direction: column;
    overscroll-behavior: none;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--emerald); }
img { max-width: 100%; height: auto; }

/* ===== SCROLLBAR (desktop) ===== */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

/* =====================================================================
   NAVBAR
   ===================================================================== */
.navbar {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    height: var(--nav-h);
    padding: 0 1rem 0 calc(1rem + var(--safe-left));
    box-shadow: 0 2px 12px rgba(0,0,0,.25);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
}

.navbar-inner {
    display: flex;
    align-items: center;
    width: 100%;
    gap: .75rem;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: .55rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff !important;
    letter-spacing: .2px;
    flex-shrink: 0;
}
.brand-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, var(--emerald), #34d399);
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #fff;
    box-shadow: 0 2px 8px rgba(5,150,105,.4);
    flex-shrink: 0;
}
.brand-text { display: none; }

/* Navbar links desktop */
.navbar-nav-desktop {
    display: none;
    list-style: none;
    padding: 0;
    margin: 0 0 0 1rem;
    gap: .25rem;
    flex: 1;
}
.navbar-nav-desktop .nav-link {
    color: rgba(255,255,255,.78);
    font-size: .875rem;
    font-weight: 500;
    padding: .38rem .75rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: .35rem;
    transition: all .18s;
    white-space: nowrap;
}
.navbar-nav-desktop .nav-link:hover { color: #fff; background: rgba(255,255,255,.12); }
.navbar-nav-desktop .dropdown-toggle::after { margin-left: .3rem; }

/* Dropdown desktop */
.navbar-nav-desktop .dropdown-menu {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    min-width: 200px;
    padding: .4rem;
    margin-top: .4rem;
}
.navbar-nav-desktop .dropdown-item {
    border-radius: var(--radius-sm);
    padding: .5rem .85rem;
    font-size: .875rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: .6rem;
    transition: all .15s;
}
.navbar-nav-desktop .dropdown-item i { width: 16px; }
.navbar-nav-desktop .dropdown-item:hover { background: #eff6ff; color: var(--primary); }

/* Hamburger button (mobile) */
.navbar-hamburger {
    background: none;
    border: none;
    color: rgba(255,255,255,.85);
    font-size: 1.5rem;
    padding: .3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background .15s;
    min-width: 40px;
    min-height: 40px;
}
.navbar-hamburger:hover { background: rgba(255,255,255,.12); }

/* User area navbar */
.navbar-user {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-left: auto;
}
.avatar {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--sky));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .8rem;
    color: #fff;
    font-weight: 700;
    flex-shrink: 0;
}
.avatar-name { display: none; color: rgba(255,255,255,.85); font-size: .85rem; }
.btn-logout {
    background: rgba(255,255,255,.1);
    color: rgba(255,255,255,.8);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-sm);
    padding: .3rem .65rem;
    font-size: .8rem;
    display: none;
    align-items: center;
    gap: .3rem;
    transition: all .2s;
    cursor: pointer;
    text-decoration: none;
}
.btn-logout:hover { background: rgba(220,38,38,.7); border-color: transparent; color: #fff; }

/* =====================================================================
   DRAWER LATERAL (sidebar móvil)
   ===================================================================== */
.drawer-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 1100;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}
.drawer-overlay.open { display: block; }

.drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    background: var(--surface);
    z-index: 1200;
    transform: translateX(-100%);
    transition: transform .28s cubic-bezier(.4,0,.2,1);
    display: flex;
    flex-direction: column;
    padding-top: var(--safe-top);
    padding-bottom: calc(var(--bottom-nav-h) + var(--safe-bottom));
    box-shadow: 4px 0 24px rgba(0,0,0,.15);
    overflow-y: auto;
}
.drawer.open { transform: translateX(0); }

.drawer-header {
    background: linear-gradient(135deg, var(--navy), var(--navy-light));
    padding: 1.25rem 1.25rem 1rem;
    display: flex;
    align-items: center;
    gap: .75rem;
    flex-shrink: 0;
}
.drawer-header .brand-icon { width: 38px; height: 38px; font-size: 1.1rem; }
.drawer-header .brand-name {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.2;
}
.drawer-header .brand-sub { color: rgba(255,255,255,.6); font-size: .72rem; }
.drawer-close {
    margin-left: auto;
    background: rgba(255,255,255,.12);
    border: none;
    color: rgba(255,255,255,.8);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
}

.drawer-body { flex: 1; padding: .75rem 0; }

/* =====================================================================
   SIDEBAR — MENÚ (compartido drawer y desktop)
   ===================================================================== */
.sidebar-label {
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--muted);
    padding: .9rem 1.25rem .35rem;
}
.sidebar-link {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .7rem 1.25rem;
    color: #475569;
    font-size: .9rem;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all .15s;
    min-height: 44px;
}
.sidebar-link i { font-size: 1rem; width: 20px; text-align: center; flex-shrink: 0; opacity: .7; }
.sidebar-link:hover { background: #f0f9ff; color: var(--primary); border-left-color: var(--primary); }
.sidebar-link:hover i { opacity: 1; }
.sidebar-link.active {
    background: linear-gradient(90deg,#eff6ff,#f0f9ff);
    color: var(--primary);
    border-left-color: var(--primary);
    font-weight: 600;
}
.sidebar-link.active i { opacity: 1; }
.sidebar-divider { height: 1px; background: var(--border); margin: .4rem 1.25rem; }

/* =====================================================================
   SIDEBAR DESKTOP
   ===================================================================== */
.sidebar-desktop {
    width: var(--sidebar-w);
    flex-shrink: 0;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: none;
    flex-direction: column;
    position: sticky;
    top: var(--nav-h);
    height: calc(100vh - var(--nav-h));
    overflow-y: auto;
    padding: 1rem 0 1.5rem;
}

/* =====================================================================
   LAYOUT
   ===================================================================== */
.layout-body { display: flex; flex: 1; }

.main-content {
    flex: 1;
    padding: 1rem;
    min-width: 0;
    /* espacio para bottom nav en móvil */
    padding-bottom: calc(var(--bottom-nav-h) + var(--safe-bottom) + 1rem);
}

/* =====================================================================
   BOTTOM NAV (móvil)
   ===================================================================== */
.bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--bottom-nav-h) + var(--safe-bottom));
    background: var(--surface);
    border-top: 1px solid var(--border);
    z-index: 999;
    box-shadow: 0 -4px 20px rgba(0,0,0,.08);
    padding-bottom: var(--safe-bottom);
}
.bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .2rem;
    color: var(--muted);
    font-size: .65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .4px;
    text-decoration: none;
    min-height: 44px;
    padding: .4rem .2rem;
    border-top: 2px solid transparent;
    transition: all .18s;
}
.bottom-nav-item i { font-size: 1.3rem; line-height: 1; }
.bottom-nav-item.active {
    color: var(--primary);
    border-top-color: var(--primary);
}
.bottom-nav-item:hover { color: var(--primary); }
.bottom-nav-item.pos-btn {
    background: var(--primary);
    color: #fff;
    border-radius: 14px;
    margin: .35rem .3rem;
    min-height: auto;
    border-top: none;
    box-shadow: 0 4px 12px rgba(29,111,164,.35);
}
.bottom-nav-item.pos-btn i { font-size: 1.4rem; }
.bottom-nav-item.pos-btn:hover { background: var(--primary-h); color: #fff; }

/* =====================================================================
   PÁGINA DE LOGIN
   ===================================================================== */
.login-page {
    min-height: calc(100vh - var(--nav-h));
    display: flex;
    align-items: stretch;
}
.login-brand-panel {
    flex: 1;
    background: linear-gradient(145deg, var(--navy) 0%, #1a3a5c 40%, #1d5f84 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2.5rem;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.login-brand-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 20% 50%, rgba(5,150,105,.2) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(14,165,233,.15) 0%, transparent 50%);
}
.login-brand-panel > * { position: relative; z-index: 1; }
.login-brand-icon {
    width: 76px;
    height: 76px;
    background: linear-gradient(135deg, var(--emerald), #34d399);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    margin: 0 auto 1.4rem;
    box-shadow: 0 8px 32px rgba(5,150,105,.4);
}
.login-brand-title { font-size: 1.9rem; font-weight: 800; margin-bottom: .5rem; text-align: center; }
.login-brand-sub { color: rgba(255,255,255,.65); font-size: .9rem; text-align: center; margin-bottom: 2.5rem; }
.login-features { list-style: none; padding: 0; margin: 0; width: 100%; max-width: 280px; }
.login-features li {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .6rem 0;
    color: rgba(255,255,255,.82);
    font-size: .875rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.login-features li:last-child { border-bottom: none; }
.login-features li i { color: #34d399; font-size: 1rem; flex-shrink: 0; }

.login-form-panel {
    width: 460px;
    flex-shrink: 0;
    background: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 2.5rem;
}
.login-form-inner { width: 100%; max-width: 360px; }
.login-form-panel .form-title { font-size: 1.5rem; font-weight: 700; color: var(--text); margin-bottom: .35rem; }
.login-form-panel .form-sub { color: var(--muted); font-size: .875rem; margin-bottom: 1.75rem; }

/* =====================================================================
   KPI CARDS
   ===================================================================== */
.kpi-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.2rem 1.1rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: .3rem;
    border: 1px solid var(--border);
    transition: box-shadow .2s, transform .2s;
    position: relative;
    overflow: hidden;
}
.kpi-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--sky));
}
.kpi-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.kpi-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: .2rem;
}
.kpi-icon.bg-primary { background: linear-gradient(135deg, var(--primary), var(--sky)) !important; }
.kpi-icon.bg-success { background: linear-gradient(135deg, var(--emerald), #34d399) !important; }
.kpi-icon.bg-warning { background: linear-gradient(135deg, var(--amber), #fbbf24) !important; }
.kpi-icon.bg-danger  { background: linear-gradient(135deg, var(--rose), #f87171) !important; }
.kpi-icon.bg-info    { background: linear-gradient(135deg, var(--sky), #38bdf8) !important; }

.kpi-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}
.kpi-label {
    font-size: .75rem;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.kpi-change { font-size: .75rem; font-weight: 600; }
.kpi-change.positive { color: var(--emerald); }
.kpi-change.negative { color: var(--rose); }

/* =====================================================================
   HERO CARD (home)
   ===================================================================== */
.hero-card {
    background: linear-gradient(135deg, var(--navy) 0%, #1a3a5c 60%, #1d5f84 100%);
    border-radius: var(--radius);
    color: #fff;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}
.hero-card::after {
    content: '';
    position: absolute;
    right: -2rem;
    top: 50%;
    transform: translateY(-50%);
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(255,255,255,.04);
}
.hero-title { font-size: 1.3rem; font-weight: 800; margin-bottom: .35rem; }
.hero-sub { color: rgba(255,255,255,.65); margin-bottom: 1.1rem; font-size: .875rem; }
.hero-stat {
    background: rgba(255,255,255,.12);
    border-radius: 10px;
    padding: .65rem .9rem;
    text-align: center;
    border: 1px solid rgba(255,255,255,.12);
}
.hero-stat .stat-val { font-size: 1.3rem; font-weight: 800; line-height: 1; }
.hero-stat .stat-lbl { font-size: .7rem; color: rgba(255,255,255,.6); margin-top: .15rem; }

/* =====================================================================
   QUICK ACTIONS
   ===================================================================== */
.quick-action {
    display: flex;
    align-items: center;
    gap: .9rem;
    padding: .9rem 1rem;
    border-radius: 10px;
    border: 1.5px solid var(--border);
    background: #fff;
    color: var(--text);
    font-weight: 600;
    font-size: .875rem;
    transition: all .18s;
    text-decoration: none;
    min-height: 56px;
}
.quick-action:hover,
.quick-action:active {
    border-color: var(--primary);
    background: #eff6ff;
    color: var(--primary);
    transform: translateX(3px);
    box-shadow: 0 4px 14px rgba(29,111,164,.12);
}
.qa-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    flex-shrink: 0;
}
.qa-arrow { margin-left: auto; color: var(--muted); transition: transform .18s; }
.quick-action:hover .qa-arrow, .quick-action:active .qa-arrow {
    transform: translateX(3px);
    color: var(--primary);
}

/* =====================================================================
   CARDS
   ===================================================================== */
.card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    background: var(--surface);
    overflow: hidden;
}
.card-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: .9rem 1.1rem;
    font-weight: 600;
    font-size: .9rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: .5rem;
}
.card-header i { color: var(--primary); }
.card-body { padding: 1.1rem; }

/* =====================================================================
   TABLAS
   ===================================================================== */
.table { margin: 0; font-size: .875rem; }
.table-responsive { -webkit-overflow-scrolling: touch; }
.table thead th {
    background: #f8fafc;
    font-weight: 700;
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .6px;
    color: var(--muted);
    border-bottom: 2px solid var(--border);
    padding: .75rem 1rem;
    white-space: nowrap;
}
.table tbody td {
    padding: .8rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #f1f5f9;
    color: var(--text);
}
.table tbody tr:last-child td { border-bottom: none; }
.table-hover tbody tr:hover { background: #f8faff; }

/* =====================================================================
   BADGES
   ===================================================================== */
.badge {
    font-weight: 600;
    font-size: .7rem;
    padding: .35em .65em;
    border-radius: 6px;
    letter-spacing: .2px;
}
.badge-stock-alto  { background: #dcfce7; color: #166534; }
.badge-stock-medio { background: #fef9c3; color: #854d0e; }
.badge-stock-bajo  { background: #fee2e2; color: #991b1b; }
.badge.bg-success   { background-color: #dcfce7 !important; color: #166534 !important; }
.badge.bg-info      { background-color: #e0f2fe !important; color: #075985 !important; }
.badge.bg-warning   { background-color: #fef9c3 !important; color: #854d0e !important; }
.badge.bg-danger    { background-color: #fee2e2 !important; color: #991b1b !important; }
.badge.bg-secondary { background-color: #f1f5f9 !important; color: #475569 !important; }
.badge.bg-primary   { background-color: #dbeafe !important; color: #1e40af !important; }

/* =====================================================================
   BOTONES
   ===================================================================== */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: .875rem;
    padding: .5rem 1rem;
    transition: all .18s;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    min-height: 40px;
}
.btn-lg { padding: .7rem 1.4rem; font-size: .95rem; min-height: 48px; }
.btn-sm { padding: .35rem .7rem; font-size: .8rem; min-height: 36px; }

.btn-primary  { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover  { background: var(--primary-h); border-color: var(--primary-h); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(29,111,164,.3); }
.btn-success  { background: var(--emerald); border-color: var(--emerald); color: #fff; }
.btn-success:hover  { background: var(--emerald-h); border-color: var(--emerald-h); color: #fff; }
.btn-outline-primary  { color: var(--primary); border-color: var(--primary); }
.btn-outline-primary:hover  { background: var(--primary); color: #fff; }
.btn-outline-success  { color: var(--emerald); border-color: var(--emerald); }
.btn-outline-success:hover  { background: var(--emerald); color: #fff; }
.btn-outline-info  { color: var(--sky); border-color: var(--sky); }
.btn-outline-info:hover  { background: var(--sky); color: #fff; }
.btn-outline-warning  { color: var(--amber); border-color: var(--amber); }
.btn-outline-warning:hover  { background: var(--amber); color: #fff; }
.btn-outline-danger  { color: var(--rose); border-color: var(--rose); }
.btn-outline-danger:hover  { background: var(--rose); color: #fff; }

/* =====================================================================
   FORMULARIOS
   ===================================================================== */
.form-label { font-weight: 600; font-size: .875rem; color: #374151; margin-bottom: .4rem; }
.form-control, .form-select {
    border: 1.5px solid #d1d5db;
    border-radius: var(--radius-sm);
    padding: .6rem 1rem;
    font-size: 1rem;     /* 16px evita zoom en iOS */
    color: var(--text);
    background: #fff;
    transition: border-color .18s, box-shadow .18s;
    min-height: 46px;
    -webkit-appearance: none;
    appearance: none;
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(29,111,164,.15);
    outline: none;
}
.form-control.is-invalid { border-color: var(--rose); }

/* =====================================================================
   ALERTS
   ===================================================================== */
.alert {
    border: none;
    border-radius: var(--radius);
    padding: .9rem 1.1rem;
    font-size: .9rem;
    display: flex;
    align-items: flex-start;
    gap: .6rem;
}
.alert i { font-size: 1.05rem; flex-shrink: 0; margin-top: 1px; }
.alert-success { background: #f0fdf4; color: #166534; border-left: 4px solid var(--emerald); }
.alert-danger, .alert-error { background: #fff5f5; color: #991b1b; border-left: 4px solid var(--rose); }
.alert-warning { background: #fffbeb; color: #92400e; border-left: 4px solid var(--amber); }
.alert-info    { background: #eff6ff; color: #1e40af; border-left: 4px solid var(--primary); }

/* =====================================================================
   FOOTER
   ===================================================================== */
#footer {
    background: var(--navy);
    color: rgba(255,255,255,.55);
    text-align: center;
    padding: 1rem 1.5rem;
    font-size: .8rem;
    /* No se ve en móvil (cubierto por bottom nav) */
}
#footer strong { color: rgba(255,255,255,.9); }
.footer-links a { color: rgba(255,255,255,.45); margin: 0 .4rem; font-size: .78rem; transition: color .2s; }
.footer-links a:hover { color: rgba(255,255,255,.9); }

/* =====================================================================
   UTILIDADES
   ===================================================================== */
.page-title { font-size: 1.4rem; font-weight: 700; color: var(--text); margin: 0 0 .2rem; }
.page-title i { color: var(--primary); margin-right: .4rem; }
.page-subtitle { color: var(--muted); font-size: .875rem; margin: 0; }
.page-header { margin-bottom: 1.25rem; }

/* =====================================================================
   ★  BREAKPOINTS  ★
   ===================================================================== */

/* ── SM+ (≥576px) ── */
@media (min-width: 576px) {
    .main-content { padding: 1.25rem; padding-bottom: calc(var(--bottom-nav-h) + var(--safe-bottom) + 1rem); }
    .hero-title { font-size: 1.5rem; }
    .brand-text { display: inline; }
}

/* ── MD+ (≥768px) ── */
@media (min-width: 768px) {
    .main-content { padding: 1.5rem 1.75rem; padding-bottom: 1.5rem; }
    .bottom-nav { display: none; }
    .kpi-value { font-size: 2rem; }
    .hero-title { font-size: 1.75rem; }
    .avatar-name { display: inline; }
    .btn-logout { display: inline-flex; }
    .hero-card { padding: 2rem 2.5rem; }
}

/* ── LG+ (≥992px) ── */
@media (min-width: 992px) {
    .sidebar-desktop { display: flex; }
    .navbar-hamburger { display: none; }
    .navbar-nav-desktop { display: flex; }
    .main-content { padding: 2rem 1.75rem; }
    .page-title { font-size: 1.625rem; }
}

/* ── XL (≥1200px) ── */
@media (min-width: 1200px) {
    .navbar { padding: 0 1.5rem; }
}

/* =====================================================================
   SOLO MÓVIL (iPhone)
   ===================================================================== */
@media (max-width: 767px) {
    /* Touch feedback */
    .sidebar-link:active, .quick-action:active, .bottom-nav-item:active {
        opacity: .75;
    }
    /* Tablas compactas */
    .table thead th, .table tbody td { padding: .6rem .75rem; font-size: .82rem; }
    /* Cards sin hover effect */
    .card:hover { box-shadow: var(--shadow); transform: none; }
    .kpi-card:hover { box-shadow: var(--shadow); transform: none; }
    /* Badges más legibles */
    .badge { font-size: .72rem; }
}

/* =====================================================================
   MODO OSCURO (preferencia del sistema — opcional)
   ===================================================================== */
@media (prefers-color-scheme: dark) {
    /* Activar si se desea dark mode en el futuro */
}