/* =============================================
   STARTRAINING — DEVORYN-INSPIRED DESIGN
   Glassmorphism · Frosted · Premium
   ============================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    /* Devoryn Color System */
    --primary:       #3b82f6;
    --primary-dark:  #2563eb;
    --primary-rgb:   59, 130, 246;
    --secondary:     #06b6d4;
    --accent:        #8b5cf6;
    --success:       #10b981;
    --warning:       #f59e0b;
    --danger:        #ef4444;

    /* Background */
    --bg-main:       #c8d8e8;
    --bg-gradient:   linear-gradient(135deg, #c8d8e8 0%, #d4e4f0 40%, #bdd0e0 100%);

    /* Glass Effect */
    --glass-bg:      rgba(255, 255, 255, 0.55);
    --glass-bg-dark: rgba(255, 255, 255, 0.35);
    --glass-border:  rgba(255, 255, 255, 0.7);
    --glass-shadow:  0 8px 32px rgba(59, 130, 246, 0.12), 0 2px 8px rgba(0,0,0,0.08);
    --glass-shadow-hover: 0 16px 48px rgba(59, 130, 246, 0.2), 0 4px 16px rgba(0,0,0,0.1);

    /* Sidebar */
    --sidebar-bg:    rgba(255, 255, 255, 0.6);
    --sidebar-width: 240px;

    /* Text */
    --text-primary:   #0f172a;
    --text-secondary: #64748b;
    --text-muted:     #94a3b8;

    /* Borders */
    --border-light: rgba(255, 255, 255, 0.8);
    --border-glass: rgba(255, 255, 255, 0.5);

    /* Font */
    --font: 'Inter', sans-serif;

    /* Misc */
    --radius-card: 20px;
    --radius-btn:  12px;
    --radius-input: 12px;
    --header-height: 80px;
    --shadow-neon: 0 0 20px rgba(59, 130, 246, 0.3);
}

/* Dark mode - keeps frosted look but darker base */
[data-theme="dark"] {
    --bg-main:       #0f172a;
    --bg-gradient:   linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    --glass-bg:      rgba(30, 41, 59, 0.7);
    --glass-bg-dark: rgba(15, 23, 42, 0.8);
    --glass-border:  rgba(255, 255, 255, 0.08);
    --glass-shadow:  0 8px 32px rgba(0,0,0,0.3);
    --glass-shadow-hover: 0 16px 48px rgba(59,130,246,0.15);
    --sidebar-bg:    rgba(15, 23, 42, 0.95);
    --text-primary:  #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted:    #64748b;
    --border-light:  rgba(255,255,255,0.08);
    --border-glass:  rgba(255,255,255,0.06);
}

*, *::before, *::after {
    margin: 0; padding: 0;
    box-sizing: border-box;
    transition: background-color 0.25s ease, color 0.2s ease, border-color 0.25s ease, box-shadow 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
    background: var(--bg-gradient);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.9rem;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ============================
   SIDEBAR — DEVORYN STYLE
   ============================ */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0; top: 0; bottom: 0;
    background: var(--sidebar-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-right: 1px solid var(--border-light);
    z-index: 1005;
    display: flex;
    flex-direction: column;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), width 0.4s ease;
    overflow: hidden;
}

.sidebar.collapsed { transform: translateX(calc(var(--sidebar-width) * -1)); }

.sidebar-logo {
    padding: 1.8rem 1.5rem 1.2rem;
    border-bottom: 1px solid var(--border-light);
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    color: var(--primary);
    display: block;
    line-height: 1;
}

.logo-tag {
    font-size: 0.52rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-top: 0.3rem;
    display: block;
}

/* Mini grid icon — like Devoryn */
.sidebar-grid-icon {
    display: grid;
    grid-template-columns: repeat(3, 5px);
    gap: 3px;
    margin-bottom: 1rem;
}
.sidebar-grid-icon span {
    width: 5px; height: 5px;
    background: var(--text-primary);
    border-radius: 1px;
}

.sidebar-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin: 0.75rem;
    background: rgba(59, 130, 246, 0.06);
    border: 1px solid rgba(59, 130, 246, 0.12);
    border-radius: 14px;
    text-decoration: none;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.sidebar-profile:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.25);
}

.sidebar-profile-img {
    width: 38px; height: 38px;
    border-radius: 10px;
    border: 2px solid rgba(59, 130, 246, 0.3);
    object-fit: cover;
    flex-shrink: 0;
}

.sidebar-profile-name {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 130px;
}

.sidebar-profile-role {
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--primary);
}

.nav-section-label {
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0.8rem 1.2rem 0.3rem;
}

.nav-group {
    flex: 1;
    padding: 0.4rem 0.75rem;
    overflow-y: auto;
    scrollbar-width: none;
}
.nav-group::-webkit-scrollbar { display: none; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 12px;
    margin-bottom: 0.15rem;
    font-weight: 500;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.nav-link i {
    font-size: 0.95rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
    color: var(--text-primary);
}

.nav-link:hover {
    background: rgba(59, 130, 246, 0.08);
    color: var(--primary);
}

.nav-link.active {
    background: rgba(59, 130, 246, 0.12);
    color: var(--primary);
    font-weight: 700;
}

[data-theme="dark"] .nav-link.active {
    background: rgba(59, 130, 246, 0.15);
}

.nav-link.danger { color: var(--danger); }
.nav-link.danger:hover { background: rgba(239, 68, 68, 0.08); }

.sidebar-bottom {
    padding: 0.75rem;
    border-top: 1px solid var(--border-light);
    flex-shrink: 0;
}

/* ============================
   TOP HEADER
   ============================ */
.top-header {
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    padding: 0 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border-bottom: 1px solid var(--border-light);
    z-index: 1002;
    transition: left 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] .top-header {
    background: rgba(15, 23, 42, 0.85);
    border-bottom-color: var(--border-glass);
}

.top-header.expanded { left: 0; }

.menu-trigger {
    background: rgba(255,255,255,0.6);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    width: 40px; height: 40px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.menu-trigger:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    border-color: rgba(59,130,246,0.3);
}

.theme-toggle-btn {
    width: 40px; height: 40px;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
    color: var(--primary);
    background: rgba(59,130,246,0.08);
    border-color: rgba(59,130,246,0.3);
}

.profile-chip {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0.9rem 0.4rem 0.4rem;
    background: rgba(255,255,255,0.7);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
}

.profile-chip:hover {
    background: rgba(255,255,255,0.9);
    box-shadow: var(--glass-shadow);
}

[data-theme="dark"] .profile-chip {
    background: rgba(30,41,59,0.7);
    border-color: var(--border-glass);
}

.profile-chip-img {
    width: 36px; height: 36px;
    border-radius: 9px;
    object-fit: cover;
    border: 1.5px solid rgba(59,130,246,0.3);
}

.profile-chip-name {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.profile-chip-role {
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--primary);
}

/* Notification bell */
.notif-btn {
    width: 40px; height: 40px;
    background: rgba(255,255,255,0.6);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    position: relative;
    font-size: 0.95rem;
}

.notif-btn .dot {
    position: absolute;
    top: 8px; right: 8px;
    width: 7px; height: 7px;
    background: var(--danger);
    border-radius: 50%;
    border: 1.5px solid white;
}

/* Notif Dropdown */
.notif-dropdown {
    position: absolute;
    top: 55px;
    right: 0;
    width: 320px;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
    display: none;
    flex-direction: column;
    overflow: hidden;
    z-index: 2000;
    animation: slideUpFade 0.25s ease;
}
[data-theme="dark"] .notif-dropdown {
    background: rgba(15, 23, 42, 0.9);
    border-color: var(--border-glass);
}
.notif-dropdown.show { display: flex; }
.notif-header { padding: 1.25rem; font-weight: 800; font-size: 0.8rem; border-bottom: 1px solid var(--border-light); display: flex; justify-content: space-between; align-items: center; }
.notif-body { max-height: 380px; overflow-y: auto; }
.notif-item { padding: 1rem 1.25rem; display: flex; gap: 1rem; border-bottom: 1px solid var(--border-light); transition: all 0.2s; cursor: pointer; text-decoration: none; }
.notif-item:hover { background: rgba(59, 130, 246, 0.05); }
.notif-icon { width: 36px; height: 36px; border-radius: 10px; background: rgba(59, 130, 246, 0.1); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 0.85rem; flex-shrink: 0; }
.notif-content { flex: 1; min-width: 0; }
.notif-title { font-weight: 700; font-size: 0.78rem; color: var(--text-primary); margin-bottom: 0.15rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.notif-sub { font-size: 0.7rem; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.notif-time { font-size: 0.62rem; color: var(--text-muted); margin-top: 0.25rem; display: block; }
.notif-footer { padding: 0.85rem; text-align: center; background: rgba(59, 130, 246, 0.04); font-size: 0.72rem; font-weight: 700; color: var(--primary); text-decoration: none; border-top: 1px solid var(--border-light); }
.notif-footer:hover { background: rgba(59, 130, 246, 0.08); }

/* ============================
   MAIN CONTENT
   ============================ */
.main-content {
    margin-left: var(--sidebar-width);
    padding: calc(var(--header-height) + 2rem) 2.5rem 2rem;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    scrollbar-width: thin;
}

.main-content.expanded { margin-left: 0; }

/* ============================
   GLASS CARDS — DEVORYN
   ============================ */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-card);
    padding: 1.75rem;
    box-shadow: var(--glass-shadow);
    transition: all 0.3s ease;
}

.glass-card:hover {
    box-shadow: var(--glass-shadow-hover);
    transform: translateY(-1px);
}

[data-theme="dark"] .glass-card {
    background: var(--glass-bg);
    border-color: var(--border-glass);
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
}

/* Stat Cards */
.stat-card {
    text-align: center;
    padding: 1.75rem 1.5rem;
}

.stat-value {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin: 0.4rem 0 0.2rem;
}

.stat-label {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin: 0;
}

.stat-icon { color: var(--primary); font-size: 1.5rem; margin-bottom: 0.5rem; }

/* ============================
   TYPOGRAPHY
   ============================ */
h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.2; color: var(--text-primary); }
h1 { font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 800; }
h2 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
h3 { font-size: clamp(1rem, 1.5vw, 1.2rem); }

.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-muted   { color: var(--text-muted) !important; }
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger  { color: var(--danger) !important; }

.xsmall { font-size: 0.68rem; }
.small   { font-size: 0.78rem; }
.fw-500 { font-weight: 500 !important; }
.fw-600 { font-weight: 600 !important; }
.fw-700 { font-weight: 700 !important; }
.fw-800 { font-weight: 800 !important; }
.fw-900 { font-weight: 900 !important; }
.ls-1 { letter-spacing: 0.5px; }
.ls-2 { letter-spacing: 1px; }
.ls-3 { letter-spacing: 2px; }

/* ============================
   BUTTONS — DEVORYN
   ============================ */
.btn-futuristic {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff !important;
    border: none;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.3px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.35);
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: var(--font);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-futuristic::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
}
.btn-futuristic:hover::before { width: 250px; height: 250px; }

.btn-futuristic:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

.btn-futuristic:active { transform: scale(0.97); }

.btn-ghost {
    background: rgba(255,255,255,0.6);
    color: var(--text-primary) !important;
    border: 1px solid var(--border-light);
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: var(--font);
}

.btn-ghost:hover {
    background: rgba(255,255,255,0.9);
    box-shadow: var(--glass-shadow);
    color: var(--primary) !important;
}

[data-theme="dark"] .btn-ghost {
    background: rgba(255,255,255,0.06);
    border-color: var(--border-glass);
    color: var(--text-primary) !important;
}

.btn-danger-ghost {
    background: rgba(239,68,68,0.06);
    color: var(--danger) !important;
    border: 1px solid rgba(239,68,68,0.2);
    padding: 0.5rem 1rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.78rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    text-decoration: none;
    font-family: var(--font);
}

.btn-danger-ghost:hover {
    background: rgba(239,68,68,0.12);
}

.w-100 { width: 100%; }

/* ============================
   FORMS
   ============================ */
.form-group { margin-bottom: 1.25rem; }

.form-label {
    display: block;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.7);
    border: 1.5px solid rgba(255,255,255,0.8);
    border-radius: var(--radius-input);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    outline: none;
    font-weight: 500;
    font-size: 0.88rem;
    font-family: var(--font);
    transition: all 0.2s ease;
}

.form-input:focus {
    border-color: var(--primary);
    background: rgba(255,255,255,0.9);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}

.form-input::placeholder { color: var(--text-muted); }
.form-input:read-only { opacity: 0.5; cursor: not-allowed; }

[data-theme="dark"] .form-input {
    background: rgba(30,41,59,0.7);
    border-color: var(--border-glass);
    color: var(--text-primary);
}

[data-theme="dark"] .form-input:focus {
    background: rgba(30,41,59,0.9);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.2);
}

/* ============================
   BADGES
   ============================ */
.badge {
    display: inline-block;
    padding: 0.25rem 0.7rem;
    border-radius: 8px;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.badge-primary { background: rgba(59,130,246,0.1); color: var(--primary); border: 1px solid rgba(59,130,246,0.2); }
.badge-success { background: rgba(16,185,129,0.1); color: var(--success); border: 1px solid rgba(16,185,129,0.2); }
.badge-warning { background: rgba(245,158,11,0.1); color: var(--warning); border: 1px solid rgba(245,158,11,0.2); }
.badge-danger  { background: rgba(239,68,68,0.1);  color: var(--danger);  border: 1px solid rgba(239,68,68,0.2);  }

/* ============================
   TABLE — DEVORYN
   ============================ */
.table-cyber { width: 100%; border-collapse: collapse; }

.table-cyber thead tr {
    background: rgba(255,255,255,0.3);
    border-bottom: 1px solid var(--border-light);
}

[data-theme="dark"] .table-cyber thead tr {
    background: rgba(255,255,255,0.03);
    border-bottom: 1px solid var(--border-glass);
}

.table-cyber thead th {
    padding: 0.9rem 1.25rem;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-secondary);
    white-space: nowrap;
}

.table-cyber tbody tr {
    border-bottom: 1px solid rgba(255,255,255,0.3);
    transition: background 0.15s ease;
}

[data-theme="dark"] .table-cyber tbody tr {
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

.table-cyber tbody tr:last-child { border-bottom: none; }
.table-cyber tbody tr:hover { background: rgba(59,130,246,0.04); }
.table-cyber tbody td { padding: 1rem 1.25rem; vertical-align: middle; }

/* ============================
   MODAL
   ============================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(10px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal-glass {
    background: rgba(255,255,255,0.92);
    border: 1px solid var(--border-light);
    border-radius: 24px;
    padding: 2.5rem;
    max-width: 480px;
    width: 100%;
    text-align: center;
    box-shadow: 0 40px 80px rgba(0,0,0,0.15);
    animation: modalPop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] .modal-glass {
    background: rgba(15, 23, 42, 0.97);
    border-color: var(--border-glass);
}

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.9) translateY(15px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-icon { font-size: 3rem; margin-bottom: 1.2rem; display: block; }
.modal-icon .fa-check-circle { color: var(--success); }
.modal-icon .fa-exclamation-triangle { color: var(--warning); }
.modal-icon .fa-info-circle { color: var(--primary); }
.modal-icon .fa-times-circle { color: var(--danger); }

.detail-modal { max-width: 680px; text-align: left; }
.detail-modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}
.detail-field-label {
    font-size: 0.6rem; font-weight: 700;
    letter-spacing: 1.5px; text-transform: uppercase;
    color: var(--text-muted); margin-bottom: 0.25rem;
}
.detail-field-value { font-size: 0.9rem; font-weight: 600; color: var(--text-primary); }

/* ============================
   MATCH BARS
   ============================ */
.match-bar-bg {
    height: 5px;
    background: rgba(0,0,0,0.08);
    border-radius: 10px;
    overflow: hidden;
    margin-top: 0.3rem;
}

[data-theme="dark"] .match-bar-bg { background: rgba(255,255,255,0.08); }

.match-bar-fill {
    height: 100%;
    border-radius: 10px;
    transition: width 0.8s ease;
}

/* ============================
   THEME TOGGLE
   ============================ */
.switch-btn {
    width: 48px; height: 26px;
    background: rgba(255,255,255,0.4);
    border: 1px solid var(--border-light);
    border-radius: 30px;
    position: relative;
    cursor: pointer;
}

.switch-btn::after {
    content: '';
    width: 18px; height: 18px;
    background: var(--primary);
    position: absolute;
    top: 3px; left: 3px;
    border-radius: 50%;
    transition: left 0.25s ease;
}

[data-theme="dark"] .switch-btn::after { left: 27px; }

/* ============================
   LAYOUT HELPERS
   ============================ */
.row { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.col { flex: 1; min-width: 0; }
.col-1 { flex: 0 0 calc(8.333% - 1.15rem); }
.col-2 { flex: 0 0 calc(16.666% - 1.04rem); }
.col-3 { flex: 0 0 calc(25% - 0.93rem); }
.col-4 { flex: 0 0 calc(33.333% - 0.84rem); }
.col-5 { flex: 0 0 calc(41.666% - 0.72rem); }
.col-6 { flex: 0 0 calc(50% - 0.625rem); }
.col-7 { flex: 0 0 calc(58.333% - 0.53rem); }
.col-8 { flex: 0 0 calc(66.666% - 0.42rem); }
.col-9 { flex: 0 0 calc(75% - 0.31rem); }
.col-10 { flex: 0 0 calc(83.333% - 0.21rem); }
.col-11 { flex: 0 0 calc(91.666% - 0.1rem); }
.col-12 { flex: 0 0 100%; }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.justify-content-end { justify-content: flex-end; }
.flex-1 { flex: 1; }
.ms-auto { margin-left: auto; }

.text-center { text-align: center; }
.text-end { text-align: right; }
.mt-auto { margin-top: auto; }

.gap-1 { gap: 0.25rem; } .gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; } .gap-4 { gap: 1.25rem; }
.gap-5 { gap: 2rem; }

.mb-0{margin-bottom:0}.mb-1{margin-bottom:0.25rem}.mb-2{margin-bottom:0.5rem}
.mb-3{margin-bottom:0.75rem}.mb-4{margin-bottom:1.25rem}.mb-5{margin-bottom:2rem}
.mt-1{margin-top:0.25rem}.mt-2{margin-top:0.5rem}.mt-3{margin-top:0.75rem}
.mt-4{margin-top:1.25rem}.mt-5{margin-top:2rem}
.me-1{margin-right:0.25rem}.me-2{margin-right:0.5rem}.ms-1{margin-left:0.25rem}.ms-2{margin-left:0.5rem}
.p-2{padding:0.5rem}.p-3{padding:0.75rem}.p-4{padding:1.25rem}.p-5{padding:2rem}
.px-3{padding-left:0.75rem;padding-right:0.75rem}
.px-4{padding-left:1.25rem;padding-right:1.25rem}
.px-5{padding-left:2rem;padding-right:2rem}
.py-2{padding-top:0.5rem;padding-bottom:0.5rem}
.py-3{padding-top:0.75rem;padding-bottom:0.75rem}
.py-4{padding-top:1.25rem;padding-bottom:1.25rem}
.py-5{padding-top:2.5rem;padding-bottom:2.5rem}
.pt-3{padding-top:0.75rem}.pt-4{padding-top:1.25rem}
.pb-3{padding-bottom:0.75rem}
.ps-4{padding-left:1.25rem}.ps-5{padding-left:2rem}
.pe-4{padding-right:1.25rem}.pe-5{padding-right:2rem}
.overflow-hidden{overflow:hidden}
.opacity-50{opacity:0.5}

.border-top { border-top: 1px solid var(--border-light) !important; }
.border-bottom { border-bottom: 1px solid var(--border-light) !important; }

[data-theme="dark"] .border-top { border-top-color: var(--border-glass) !important; }
[data-theme="dark"] .border-bottom { border-bottom-color: var(--border-glass) !important; }

/* ============================
   ANIMATIONS
   ============================ */
@keyframes slideUpFade {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.animate { animation: slideUpFade 0.4s ease forwards; }

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 1024px) {
    :root { --sidebar-width: 220px; }
    .col-1, .col-2, .col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 { flex: 1 1 100%; max-width: 100%; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(calc(var(--sidebar-width) * -1)); box-shadow: 4px 0 30px rgba(0,0,0,0.15); }
    .sidebar.mobile-open { transform: translateX(0); }
    .main-content { margin-left: 0 !important; padding: calc(var(--header-height) + 1.5rem) 1.25rem 2rem; }
    .top-header { left: 0 !important; padding: 0 1.25rem; }
    .row { flex-direction: column; }
}