:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #94a3b8;
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-glass: rgba(15, 23, 42, 0.6);
    --border-glass: rgba(255, 255, 255, 0.08);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --font-main: 'Tahoma', 'Segoe UI', 'Arial', sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 3rem;
    --touch-min: 44px;
}

*, *::before, *::after { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font-main); background-color: var(--bg-dark); color: var(--text-main); margin: 0; padding: 0; line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
button, input, select, textarea { font-family: inherit; }

.container { padding-left: var(--space-md); padding-right: var(--space-md); width: 100%; margin-right: auto; margin-left: auto; }
@media (min-width: 576px) { .container { max-width: 540px; } }
@media (min-width: 768px) { .container { max-width: 720px; } }
@media (min-width: 992px) { .container { max-width: 960px; } }
@media (min-width: 1200px) { .container { max-width: 1140px; } }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.gap-1 { gap: var(--space-xs); }
.gap-2 { gap: var(--space-sm); }
.gap-3 { gap: var(--space-md); }
.w-100 { width: 100%; }
.h-100 { height: 100%; }
.text-center { text-align: center; }
.text-end { text-align: right; }
.text-start { text-align: left; }

.text-primary { color: var(--primary) !important; }
.text-white { color: #fff !important; }
.text-muted { color: var(--text-muted) !important; }
.bg-primary { background-color: var(--primary) !important; }
.bg-dark { background-color: var(--bg-dark) !important; }

.glass-panel { background: var(--bg-glass); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid var(--border-glass); border-radius: var(--radius-md); }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.75rem 1.5rem; border-radius: var(--radius-md); font-weight: 600; transition: transform 0.2s, box-shadow 0.2s; cursor: pointer; border: none; min-height: var(--touch-min); }
.btn:active { transform: scale(0.98); }
.btn-primary { background-color: var(--primary); color: white; box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3); }
.btn-primary:hover { background-color: var(--primary-dark); }

.grid { display: grid; gap: var(--space-md); }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: 1fr; }
    html { font-size: 15px; }
    .container { padding-left: var(--space-md); padding-right: var(--space-md); }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

[data-aos] { opacity: 1 !important; transform: none !important; transition: none !important; }
body[data-aos-easing] [data-aos] { opacity: 0 !important; transition-property: opacity, transform !important; }
body[data-aos-easing] [data-aos].aos-animate { opacity: 1 !important; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: #334155; border-radius: var(--radius-full); }
.touch-target { min-width: var(--touch-min); min-height: var(--touch-min); display: flex; align-items: center; justify-content: center; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; } }

/* DASHBOARD LAYOUT & SIDEBAR */
.dashboard-wrapper { display: flex; min-height: 100vh; }
.main-content { flex-grow: 1; width: 100%; }

.sidebar-desktop {
    width: 280px; background: rgba(15, 23, 42, 0.95); backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-glass); position: fixed; inset: 0 0 0 auto;
    z-index: 1000; display: flex; flex-direction: column; padding: 25px;
    transition: transform 0.3s;
}
.sidebar-header { margin-bottom: 40px; display: flex; align-items: center; gap: 15px; }
.logo-box { width: 50px; height: 50px; background: rgba(99, 102, 241, 0.1); border-radius: 14px; display: grid; place-items: center; }
.sidebar-nav { display: flex; flex-direction: column; gap: 10px; flex-grow: 1; }
.nav-item {
    display: flex; align-items: center; gap: 15px; padding: 16px 20px;
    color: var(--text-muted); border-radius: 16px; transition: 0.3s;
    font-weight: 500;
}
.nav-item:hover, .nav-item.active {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.15), transparent);
    color: #fff; border-right: 3px solid var(--primary);
}
.nav-item i { width: 24px; text-align: center; }

.sidebar-footer { padding-top: 20px; border-top: 1px solid var(--border-glass); }
.user-profile-link { display: flex; align-items: center; gap: 15px; padding: 10px; border-radius: 16px; transition: 0.3s; }
.user-profile-link:hover { background: rgba(255,255,255,0.05); }
.user-avatar { width: 45px; height: 45px; border-radius: 50%; background: var(--bg-card); display: grid; place-items: center; border: 1px solid var(--border-glass); }

.mobile-bottom-nav {
    display: none; position: fixed; bottom: 0; left: 0; right: 0;
    height: 80px; background: rgba(15, 23, 42, 0.95); backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-glass); z-index: 1000;
    padding: 0 20px; justify-content: space-around; align-items: center;
}
.mobile-nav-item {
    display: flex; flex-direction: column; align-items: center; gap: 5px;
    color: var(--text-muted); font-size: 0.75rem; transition: 0.3s;
    width: 60px;
}
.mobile-nav-item i { font-size: 1.4rem; transition: 0.3s; }
.mobile-nav-item.active { color: var(--primary); }
.mobile-nav-item.active i { transform: translateY(-5px); filter: drop-shadow(0 0 10px var(--primary)); }

.fab-btn {
    width: 60px; height: 60px; background: var(--primary); border-radius: 50%;
    display: grid; place-items: center; color: white; font-size: 1.5rem;
    transform: translateY(-30px); border: 5px solid var(--bg-dark);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.5); transition: 0.3s;
}
.fab-btn:active { transform: translateY(-25px) scale(0.95); }

.hide-footer-ui .footer-bg { display: none !important; }

@media (max-width: 992px) {
    .sidebar-desktop { display: none; }
    .mobile-bottom-nav { display: flex; }
    .main-content { margin-right: 0 !important; width: 100% !important; padding: 20px 20px 100px 20px !important; }
}
@media (min-width: 993px) {
    .main-content { margin-right: 280px; padding: 40px; }
}