/* ═══ SIDEBAR & APP LAYOUT (PREMIUM) ═══ */

/* Override old dashboard nav */
.dashboard-screen.active { display: block; }
.dashboard-screen .d-nav { display: none; }
.dashboard-screen .d-main { all: unset; }
.page-heading {
    font-size: 1.4rem; font-weight: 800; color: var(--navy-800);
    background: linear-gradient(135deg, var(--navy-800), var(--navy-600));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.page-subheading { color: var(--g400); font-size: .9rem; margin-top: 2px; }

/* Layout */
.app-layout { display: flex; height: 100vh; overflow: hidden; }

/* Sidebar */
.app-sidebar {
    width: 260px; min-width: 260px;
    background: linear-gradient(180deg, #0d1b2e 0%, #060e1a 100%);
    display: flex; flex-direction: column;
    border-right: 1px solid rgba(255,255,255,.04);
    transition: width .35s var(--ease), min-width .35s var(--ease);
    z-index: 50; position: relative; overflow: hidden;
}
/* Subtle ambient glow inside sidebar */
.app-sidebar::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(42,109,168,.06), transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(211,47,47,.03), transparent 40%);
    pointer-events: none; z-index: 0;
}
.app-sidebar.collapsed { width: 72px; min-width: 72px; }
.app-sidebar.collapsed .sb-logo-text,
.app-sidebar.collapsed .sb-nav-label,
.app-sidebar.collapsed .sb-section-title,
.app-sidebar.collapsed .sb-user-info,
.app-sidebar.collapsed .sb-badge { opacity: 0; width: 0; overflow: hidden; white-space: nowrap; }
.app-sidebar.collapsed .sb-logo { justify-content: center; padding: 20px 0; }
.app-sidebar.collapsed .sb-nav-link { justify-content: center; padding: 12px 0; border-radius: 12px; margin: 2px 10px; }
.app-sidebar.collapsed .sb-nav-link .sb-nav-icon { margin-right: 0; }
.app-sidebar.collapsed .sb-user { justify-content: center; padding: 16px 10px; }
.app-sidebar.collapsed .sb-user-avatar { margin-right: 0; }
.app-sidebar.collapsed .sb-toggle-icon { transform: rotate(180deg); }

/* Sidebar header */
.sb-logo { display: flex; align-items: center; padding: 20px 20px 8px; transition: padding .35s var(--ease); position: relative; z-index: 1; }
.sb-logo-img { height: 32px; width: auto; flex-shrink: 0; filter: brightness(1.1) drop-shadow(0 0 12px rgba(42,109,168,.2)); }
.sb-logo-text { margin-left: 10px; font-size: .7rem; font-weight: 700; color: var(--g400); text-transform: uppercase; letter-spacing: .12em; transition: opacity .25s; }
.sb-toggle {
    position: absolute; top: 22px; right: -13px;
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--navy-700); border: 2px solid var(--navy-600);
    color: var(--g400); display: flex; align-items: center; justify-content: center;
    transition: all .3s var(--ease); z-index: 5; cursor: pointer;
}
.sb-toggle:hover { background: var(--navy-600); color: white; border-color: var(--navy-400); transform: scale(1.1); }
.sb-toggle svg { width: 12px; height: 12px; }
.sb-toggle-icon { transition: transform .35s var(--ease); }

/* Sidebar nav */
.sb-nav { flex: 1; padding: 12px; overflow-y: auto; overflow-x: hidden; position: relative; z-index: 1; }
.sb-nav::-webkit-scrollbar { width: 3px; }
.sb-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 10px; }
.sb-section-title {
    font-size: .65rem; font-weight: 700; color: var(--g600); text-transform: uppercase;
    letter-spacing: .14em; padding: 16px 12px 8px; transition: opacity .25s;
}
.sb-nav-link {
    display: flex; align-items: center; padding: 11px 14px;
    border-radius: var(--radius-sm, 10px); color: var(--g400);
    font-size: .88rem; font-weight: 500;
    transition: all .25s var(--ease); cursor: pointer; margin-bottom: 2px;
    position: relative; overflow: hidden; text-decoration: none;
}
.sb-nav-link::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(42,109,168,.06), transparent);
    opacity: 0; transition: opacity .3s; pointer-events: none;
}
.sb-nav-link:hover { color: var(--g200); background: rgba(255,255,255,.04); }
.sb-nav-link:hover::after { opacity: 1; }
.sb-nav-link.active {
    color: white; background: rgba(42,109,168,.18);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(42,109,168,.08);
}
.sb-nav-link.active::before {
    content: ''; position: absolute; left: 0; top: 20%; bottom: 20%;
    width: 3px; border-radius: 0 3px 3px 0; background: var(--red-400);
    box-shadow: 0 0 8px rgba(211,47,47,.3);
}
.sb-nav-link.active::after { opacity: 1; }
.sb-nav-icon { width: 20px; height: 20px; flex-shrink: 0; margin-right: 12px; transition: all .35s var(--ease); }
.sb-nav-link.active .sb-nav-icon { filter: drop-shadow(0 0 4px rgba(255,255,255,.15)); }
.sb-nav-label { transition: opacity .25s; white-space: nowrap; }
.sb-divider { height: 1px; background: rgba(255,255,255,.05); margin: 8px 12px; }

/* Sidebar user */
.sb-user {
    display: flex; align-items: center; padding: 16px;
    border-top: 1px solid rgba(255,255,255,.05);
    transition: padding .35s var(--ease);
    position: relative; z-index: 1;
}
.sb-user-avatar {
    width: 36px; height: 36px; border-radius: var(--radius-sm, 10px); flex-shrink: 0;
    background: linear-gradient(135deg, var(--navy-500), var(--red-500));
    display: flex; align-items: center; justify-content: center;
    font-size: .75rem; font-weight: 800; color: white;
    margin-right: 12px; transition: all .35s var(--ease);
    box-shadow: 0 2px 8px rgba(211,47,47,.2);
}
.sb-user-info { transition: opacity .25s; overflow: hidden; }
.sb-user-name { display: block; font-size: .85rem; font-weight: 600; color: var(--g200); white-space: nowrap; }
.sb-user-role { display: block; font-size: .72rem; color: var(--g500); white-space: nowrap; }

/* Content area */
.app-content-wrap { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

/* Topbar */
.app-topbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 28px;
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--g200); min-height: 60px; flex-shrink: 0;
    position: relative; z-index: 10;
    transition: box-shadow .3s;
}
/* Subtle bottom glow on topbar */
.app-topbar::after {
    content: ''; position: absolute; bottom: -1px; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(42,109,168,.1), transparent);
}
.topbar-left { display: flex; align-items: center; gap: 14px; }
.sb-hamburger {
    display: none; width: 38px; height: 38px; border-radius: var(--radius-sm, 10px);
    align-items: center; justify-content: center; color: var(--g500);
    border: 1px solid var(--g200); transition: all .25s var(--ease); cursor: pointer; background: none;
}
.sb-hamburger:hover { background: var(--g50); color: var(--navy-600); transform: scale(1.05); }
.sb-hamburger svg { width: 20px; height: 20px; }
.topbar-title { font-size: 1.15rem; font-weight: 800; color: var(--navy-800); }
.topbar-right { display: flex; align-items: center; gap: 10px; }

.topbar-user-pill {
    display: flex; align-items: center; gap: 8px;
    padding: 4px 14px 4px 4px; background: var(--g50);
    border-radius: 50px; border: 1px solid var(--g200);
    transition: all .3s var(--ease);
}
.topbar-user-pill:hover { background: var(--white); border-color: var(--navy-100); box-shadow: var(--shadow-xs, 0 1px 2px rgba(0,0,0,.04)); }
.topbar-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: linear-gradient(135deg, var(--navy-600), var(--navy-800));
    display: flex; align-items: center; justify-content: center;
    font-size: .72rem; font-weight: 800; color: white;
    box-shadow: 0 1px 3px rgba(0,0,0,.1);
}
.topbar-name { font-size: .85rem; font-weight: 600; color: var(--g700); }
.topbar-badge { font-size: .62rem; font-weight: 700; padding: 2px 7px; border-radius: 20px; }
.topbar-badge.sucursal { background: var(--navy-50); color: var(--navy-500); }
.topbar-badge.cliente { background: #ecfdf5; color: var(--success); }

.btn-topbar-out {
    width: 38px; height: 38px; border-radius: var(--radius-sm, 10px); display: flex;
    align-items: center; justify-content: center; color: var(--g400);
    transition: all .25s var(--ease); cursor: pointer; background: none; border: none;
}
.btn-topbar-out:hover { background: #fef2f2; color: var(--red-500); transform: scale(1.05); }
.btn-topbar-out svg { width: 18px; height: 18px; }

/* Scrollable content */
.app-content {
    flex: 1; overflow-y: auto; padding: 28px;
    background: linear-gradient(180deg, var(--g50) 0%, rgba(241,245,249,.4) 100%);
    position: relative;
}
/* Subtle dot pattern background */
.app-content::before {
    content: ''; position: fixed; inset: 0; pointer-events: none;
    background-image: radial-gradient(circle, var(--g200) .5px, transparent .5px);
    background-size: 24px 24px;
    opacity: .3;
    z-index: 0;
}
.app-content > * { position: relative; z-index: 1; }
.app-content::-webkit-scrollbar { width: 6px; }
.app-content::-webkit-scrollbar-thumb { background: var(--g300); border-radius: 10px; }

/* Pages */
.app-page { display: none; animation: pageIn .45s var(--ease) both; }
.app-page.active { display: block; }
@keyframes pageIn { from { opacity: 0; transform: translateY(14px); } }

/* Placeholder pages */
.placeholder-page { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 400px; text-align: center; }
.pp-icon { font-size: 4rem; margin-bottom: 12px; opacity: .5; animation: float 3s ease-in-out infinite; }
.pp-title { font-size: 1.3rem; font-weight: 800; color: var(--navy-800); margin-bottom: 8px; }
.pp-desc { color: var(--g400); font-size: .9rem; max-width: 360px; line-height: 1.6; }
.pp-badge {
    margin-top: 16px; padding: 6px 16px; border-radius: 20px;
    background: #fffbeb; color: #b45309; font-size: .78rem; font-weight: 700;
    animation: badgePulse 2s ease-in-out infinite;
}
@keyframes badgePulse { 0%,100%{box-shadow:0 0 0 0 rgba(245,158,11,.15)}50%{box-shadow:0 0 0 8px rgba(245,158,11,0)} }

/* Mobile overlay */
.sb-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,.5); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
    z-index: 45; opacity: 0; transition: opacity .3s;
}
.sb-overlay.active { opacity: 1; }

/* Responsive */
@media (max-width: 899px) {
    .app-sidebar {
        position: fixed; left: 0; top: 0; bottom: 0;
        transform: translateX(-100%);
        transition: transform .35s var(--ease);
        z-index: 50; width: 280px; min-width: 280px;
    }
    .app-sidebar.mobile-open { transform: translateX(0); }
    .sb-overlay { display: block; }
    .sb-toggle { display: none; }
    .sb-hamburger { display: flex; }
    .app-content { padding: 20px 16px; }
    .app-topbar { padding: 12px 16px; }
    .topbar-name { display: none; }
}
@media (min-width: 900px) {
    .sb-hamburger { display: none; }
    .sb-overlay { display: none !important; }
}