/* ===== TRON THEME - Core Variables ===== */
:root {
    --tron-bg: #0a0a1a;
    --tron-surface: #0d1117;
    --tron-surface-hover: #161b22;
    --tron-border: #1a3a5c;
    --tron-cyan: #00d4ff;
    --tron-cyan-dim: #0099cc;
    --tron-cyan-glow: rgba(0, 212, 255, 0.3);
    --tron-orange: #ff6a00;
    --tron-orange-glow: rgba(255, 106, 0, 0.3);
    --tron-text: #c9d1d9;
    --tron-text-muted: #6e7a88;
    --tron-white: #e6edf3;
    --tron-success: #00ff88;
    --tron-danger: #ff3366;
    --tron-warning: #ffaa00;
    --sidebar-width: 260px;
    --sidebar-collapsed: 56px;
    --topbar-height: 48px;
}

/* ===== Reset & Base ===== */
html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}
@media (min-width: 768px) {
    html { font-size: 15px; }
}

body {
    margin: 0;
    padding: 0;
    background: var(--tron-bg);
    color: var(--tron-text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    overflow-x: hidden;
}

a { color: var(--tron-cyan); text-decoration: none; }
a:hover { color: var(--tron-white); text-shadow: 0 0 8px var(--tron-cyan-glow); }

::selection {
    background: var(--tron-cyan);
    color: var(--tron-bg);
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--tron-bg); }
::-webkit-scrollbar-thumb { background: var(--tron-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--tron-cyan-dim); }

/* ===== Top Bar ===== */
.tron-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-height);
    background: var(--tron-surface);
    border-bottom: 1px solid var(--tron-border);
    display: flex;
    align-items: center;
    padding: 0 16px;
    z-index: 1040;
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.5);
}

.tron-topbar .hamburger-btn {
    background: none;
    border: 1px solid transparent;
    color: var(--tron-text);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s;
    line-height: 1;
}
.tron-topbar .hamburger-btn:hover {
    color: var(--tron-cyan);
    border-color: var(--tron-border);
    background: var(--tron-surface-hover);
}

.tron-topbar .brand {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tron-cyan);
    margin-left: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-shadow: 0 0 10px var(--tron-cyan-glow);
}

.tron-topbar .topbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

.tron-topbar .user-info {
    color: var(--tron-text-muted);
    font-size: 0.85rem;
}

/* ===== Sidebar ===== */
.tron-sidebar {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--tron-surface);
    border-right: 1px solid var(--tron-border);
    z-index: 1030;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-x: hidden;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.tron-sidebar .sidebar-nav {
    padding: 8px 0;
    flex: 1;
}

.tron-sidebar .nav-section {
    padding: 16px 16px 4px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--tron-text-muted);
    white-space: nowrap;
    overflow: hidden;
}

.tron-sidebar .nav-item {
    display: block;
    padding: 10px 16px;
    color: var(--tron-text);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    transition: all 0.15s;
    border-left: 3px solid transparent;
    display: flex;
    align-items: center;
    gap: 12px;
}

.tron-sidebar .nav-item .nav-icon {
    width: 22px;
    text-align: center;
    flex-shrink: 0;
    font-size: 1rem;
}

.tron-sidebar .nav-item:hover {
    background: var(--tron-surface-hover);
    color: var(--tron-cyan);
    border-left-color: var(--tron-cyan-dim);
    text-decoration: none;
    text-shadow: 0 0 6px var(--tron-cyan-glow);
}

.tron-sidebar .nav-item.active {
    color: var(--tron-cyan);
    background: rgba(0, 212, 255, 0.06);
    border-left-color: var(--tron-cyan);
    text-shadow: 0 0 8px var(--tron-cyan-glow);
}

/* Pin button in sidebar footer */
.tron-sidebar .sidebar-footer {
    padding: 8px 16px;
    border-top: 1px solid var(--tron-border);
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.pin-btn {
    background: none;
    border: 1px solid var(--tron-border);
    color: var(--tron-text-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}
.pin-btn:hover {
    color: var(--tron-cyan);
    border-color: var(--tron-cyan-dim);
}
.pin-btn.pinned {
    color: var(--tron-cyan);
    border-color: var(--tron-cyan);
    background: rgba(0, 212, 255, 0.08);
}
.pin-btn .pin-icon {
    transition: transform 0.2s;
}
.pin-btn.pinned .pin-icon {
    transform: rotate(45deg);
}

/* Sidebar states */
body.sidebar-pinned .tron-sidebar {
    transform: translateX(0);
}
body.sidebar-pinned .tron-main {
    margin-left: var(--sidebar-width);
}

body:not(.sidebar-pinned) .tron-sidebar {
    transform: translateX(-100%);
}
body:not(.sidebar-pinned) .tron-sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.6);
}
body:not(.sidebar-pinned) .tron-main {
    margin-left: 0;
}

/* Overlay when sidebar open and unpinned */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1025;
}
body:not(.sidebar-pinned) .tron-sidebar.open ~ .sidebar-overlay {
    display: block;
}

/* ===== Main Content ===== */
.tron-main {
    padding-top: calc(var(--topbar-height) + 20px);
    padding-left: 24px;
    padding-right: 24px;
    padding-bottom: 40px;
    min-height: 100vh;
    transition: margin-left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Footer ===== */
.tron-footer {
    border-top: 1px solid var(--tron-border);
    padding: 12px 24px;
    color: var(--tron-text-muted);
    font-size: 0.8rem;
    background: var(--tron-surface);
}

/* ===== Cards (Tron style) ===== */
.card {
    background: var(--tron-surface);
    border: 1px solid var(--tron-border);
    border-radius: 6px;
    color: var(--tron-text);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.card:hover {
    border-color: var(--tron-cyan-dim);
    box-shadow: 0 0 16px rgba(0, 212, 255, 0.08);
}
.card-header {
    background: rgba(0, 212, 255, 0.04);
    border-bottom: 1px solid var(--tron-border);
    color: var(--tron-cyan);
    font-weight: 600;
    letter-spacing: 0.5px;
}
.card-title { color: var(--tron-white); }

/* ===== Tables ===== */
.table {
    color: var(--tron-text);
    --bs-table-bg: transparent;
    --bs-table-striped-bg: rgba(0, 212, 255, 0.02);
    --bs-table-hover-bg: rgba(0, 212, 255, 0.05);
    border-color: var(--tron-border);
}
.table thead th {
    background: rgba(0, 212, 255, 0.06);
    border-bottom: 1px solid var(--tron-cyan-dim);
    color: var(--tron-cyan);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}
.table td { border-color: var(--tron-border); }
.table-light { --bs-table-bg: rgba(0, 212, 255, 0.06); --bs-table-color: var(--tron-cyan); }
.table-sm td, .table-sm th { padding: 0.5rem 0.65rem; }

/* ===== Buttons ===== */
.btn { border-radius: 4px; font-weight: 500; letter-spacing: 0.3px; transition: all 0.2s; }

.btn-primary, .btn-outline-primary {
    --bs-btn-bg: transparent;
    --bs-btn-border-color: var(--tron-cyan);
    --bs-btn-color: var(--tron-cyan);
    --bs-btn-hover-bg: var(--tron-cyan);
    --bs-btn-hover-border-color: var(--tron-cyan);
    --bs-btn-hover-color: var(--tron-bg);
    --bs-btn-active-bg: var(--tron-cyan-dim);
    --bs-btn-active-border-color: var(--tron-cyan-dim);
    --bs-btn-active-color: var(--tron-bg);
}
.btn-primary:hover, .btn-outline-primary:hover {
    box-shadow: 0 0 14px var(--tron-cyan-glow);
}

.btn-outline-secondary {
    --bs-btn-border-color: var(--tron-border);
    --bs-btn-color: var(--tron-text-muted);
    --bs-btn-hover-bg: var(--tron-surface-hover);
    --bs-btn-hover-border-color: var(--tron-text-muted);
    --bs-btn-hover-color: var(--tron-text);
}

.btn-outline-success, .btn-success {
    --bs-btn-border-color: var(--tron-success);
    --bs-btn-color: var(--tron-success);
    --bs-btn-hover-bg: var(--tron-success);
    --bs-btn-hover-border-color: var(--tron-success);
    --bs-btn-hover-color: var(--tron-bg);
}
.btn-outline-success:hover { box-shadow: 0 0 14px rgba(0, 255, 136, 0.25); }

.btn-outline-danger, .btn-danger {
    --bs-btn-border-color: var(--tron-danger);
    --bs-btn-color: var(--tron-danger);
    --bs-btn-hover-bg: var(--tron-danger);
    --bs-btn-hover-border-color: var(--tron-danger);
    --bs-btn-hover-color: var(--tron-white);
}

.btn-outline-info {
    --bs-btn-border-color: var(--tron-cyan-dim);
    --bs-btn-color: var(--tron-cyan-dim);
    --bs-btn-hover-bg: var(--tron-cyan-dim);
    --bs-btn-hover-border-color: var(--tron-cyan-dim);
    --bs-btn-hover-color: var(--tron-bg);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.15rem var(--tron-cyan-glow);
}

/* ===== Forms ===== */
.form-control, .form-select {
    background: var(--tron-bg);
    border: 1px solid var(--tron-border);
    color: var(--tron-text);
    border-radius: 4px;
}
.form-control:focus, .form-select:focus {
    background: var(--tron-bg);
    border-color: var(--tron-cyan);
    color: var(--tron-text);
    box-shadow: 0 0 0 2px var(--tron-cyan-glow);
}
.form-control::placeholder { color: var(--tron-text-muted); }
.form-label { color: var(--tron-text-muted); font-size: 0.85rem; font-weight: 500; }

/* ===== Badges ===== */
.badge {
    font-weight: 500;
    letter-spacing: 0.5px;
    border: 1px solid transparent;
}
.bg-info { background: rgba(0, 212, 255, 0.15) !important; color: var(--tron-cyan) !important; border-color: var(--tron-cyan-dim); }
.bg-warning { background: rgba(255, 170, 0, 0.15) !important; color: var(--tron-warning) !important; border-color: var(--tron-warning); }
.bg-success { background: rgba(0, 255, 136, 0.15) !important; color: var(--tron-success) !important; border-color: var(--tron-success); }
.bg-danger { background: rgba(255, 51, 102, 0.15) !important; color: var(--tron-danger) !important; border-color: var(--tron-danger); }
.bg-secondary { background: rgba(110, 122, 136, 0.15) !important; color: var(--tron-text-muted) !important; border-color: var(--tron-text-muted); }

/* ===== Alerts ===== */
.alert {
    border-radius: 4px;
    border-width: 1px;
    background: var(--tron-surface);
}
.alert-success {
    border-color: var(--tron-success);
    color: var(--tron-success);
    background: rgba(0, 255, 136, 0.06);
}
.alert-danger {
    border-color: var(--tron-danger);
    color: var(--tron-danger);
    background: rgba(255, 51, 102, 0.06);
}
.alert-warning {
    border-color: var(--tron-warning);
    color: var(--tron-warning);
    background: rgba(255, 170, 0, 0.06);
}
.btn-close { filter: invert(0.7); }

/* ===== Progress Bars ===== */
.progress {
    background: rgba(0, 212, 255, 0.08);
    border-radius: 3px;
    border: 1px solid var(--tron-border);
}
.progress-bar {
    background: var(--tron-cyan);
    font-size: 0.65rem;
    font-weight: 600;
    box-shadow: 0 0 8px var(--tron-cyan-glow);
}
.progress-bar.bg-danger {
    background: var(--tron-danger) !important;
    box-shadow: 0 0 8px rgba(255, 51, 102, 0.3);
}

/* ===== Pagination ===== */
.page-item .page-link {
    background: var(--tron-surface);
    border-color: var(--tron-border);
    color: var(--tron-text);
}
.page-item .page-link:hover {
    background: var(--tron-surface-hover);
    border-color: var(--tron-cyan-dim);
    color: var(--tron-cyan);
}
.page-item.active .page-link {
    background: var(--tron-cyan);
    border-color: var(--tron-cyan);
    color: var(--tron-bg);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 { color: var(--tron-white); }
.text-muted { color: var(--tron-text-muted) !important; }
.text-dark { color: var(--tron-text) !important; }
.text-success { color: var(--tron-success) !important; }
.text-danger { color: var(--tron-danger) !important; }
.text-warning { color: var(--tron-warning) !important; }
.display-6 { font-weight: 300; }

code {
    background: rgba(0, 212, 255, 0.08);
    color: var(--tron-cyan);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.85em;
}

/* ===== Tron Glow Accents ===== */
.glow-line {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--tron-cyan), transparent);
    opacity: 0.4;
    margin: 16px 0;
}

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

.login-page::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

.login-card {
    position: relative;
    width: 100%;
    max-width: 420px;
    padding: 48px 40px;
    background: var(--tron-surface);
    border: 1px solid var(--tron-border);
    border-radius: 8px;
    box-shadow:
        0 0 40px rgba(0, 0, 0, 0.5),
        0 0 80px rgba(0, 212, 255, 0.05),
        inset 0 1px 0 rgba(0, 212, 255, 0.1);
}

.login-card::before {
    content: '';
    position: absolute;
    top: -1px; left: 20%; right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--tron-cyan), transparent);
    border-radius: 2px;
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo .logo-text {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 6px;
    text-transform: uppercase;
    color: var(--tron-cyan);
    text-shadow: 0 0 20px var(--tron-cyan-glow), 0 0 40px rgba(0, 212, 255, 0.15);
}

.login-logo .logo-sub {
    font-size: 0.75rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--tron-text-muted);
    margin-top: 4px;
}

.login-card .form-control {
    background: rgba(0, 0, 0, 0.3);
    border-color: var(--tron-border);
    padding: 12px 16px;
    font-size: 0.95rem;
}
.login-card .form-control:focus {
    border-color: var(--tron-cyan);
    box-shadow: 0 0 0 3px var(--tron-cyan-glow);
}

.login-card .btn-login {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--tron-cyan);
    color: var(--tron-cyan);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}
.login-card .btn-login:hover {
    background: var(--tron-cyan);
    color: var(--tron-bg);
    box-shadow: 0 0 30px var(--tron-cyan-glow), 0 0 60px rgba(0, 212, 255, 0.1);
}

.login-card .btn-login-entra {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--tron-orange);
    color: var(--tron-orange);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
    transition: all 0.3s;
}
.login-card .btn-login-entra:hover {
    background: var(--tron-orange);
    color: var(--tron-bg);
    box-shadow: 0 0 30px var(--tron-orange-glow);
}

.login-divider {
    display: flex;
    align-items: center;
    margin: 24px 0;
    color: var(--tron-text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}
.login-divider::before, .login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--tron-border), transparent);
}
.login-divider span { padding: 0 16px; }

/* Hex decorations on login */
.hex-decoration {
    position: absolute;
    opacity: 0.06;
    font-size: 8rem;
    color: var(--tron-cyan);
    pointer-events: none;
}
.hex-decoration.top-right { top: -30px; right: -20px; }
.hex-decoration.bottom-left { bottom: -30px; left: -20px; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .tron-main { padding-left: 16px; padding-right: 16px; }
    body.sidebar-pinned .tron-main { margin-left: 0; }
    body.sidebar-pinned .tron-sidebar { transform: translateX(-100%); }
    body.sidebar-pinned .tron-sidebar.open { transform: translateX(0); }
}