:root {
    --primary-color: #0ea5e9;
    --secondary-color: #000000;
    --accent-color: #0ea5e9;
    --accent-hover: #0284c7;
    --dark-bg: #000000;
    --light-bg: #ffffff;
    --font-main: 'Inter', sans-serif;
}

body {
    font-family: var(--font-main);
    color: #333;
    overflow-x: hidden;
}

/* Typography */
.fw-800 {
    font-weight: 800;
}

.ls-1 {
    letter-spacing: 1px;
}

/* Colors */
.text-orange {
    color: var(--accent-color) !important;
}

.bg-orange {
    background-color: var(--accent-color) !important;
}

.bg-soft-orange {
    background-color: rgba(14, 165, 233, 0.1) !important;
}

/* Navbar */
.custom-nav {
    padding-top: 15px;
    padding-bottom: 15px;
    transition: all 0.3s ease;
}

.brand-logo {
    height: 40px;
}

.nav-link {
    color: #333;
    font-weight: 600;
    margin: 0 10px;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
}

/* Buttons */
.btn-orange {
    background-color: var(--accent-color);
    border: 2px solid var(--accent-color);
    transition: all 0.3s ease;
}

.btn-orange:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-outline-orange {
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    background: transparent;
    transition: all 0.3s ease;
}

.btn-outline-orange:hover {
    background-color: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

/* Utilities */
.hover-up {
    transition: transform 0.3s ease;
}

.hover-up:hover {
    transform: translateY(-5px);
}

.text-primary-gradient {
    background: linear-gradient(45deg, #0ea5e9, #38bdf8);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Grayscale Hover Effect */
.grayscale-hover i {
    transition: all 0.3s ease;
    filter: grayscale(100%);
    opacity: 0.5;
    cursor: pointer;
}

.grayscale-hover i:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.2);
}

/* Mobile Adjustments */
@media (max-width: 991px) {
    .display-3 {
        font-size: 2.5rem;
    }

    .hero-split {
        padding-top: 100px;
        text-align: center;
    }

    .hero-split .d-flex {
        justify-content: center;
    }
}

/* Dashboard Styles */
.dashboard-card {
    border: none;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
}

.stat-icon-wrapper {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.sidebar-nav .nav-link {
    color: #6c757d;
    padding: 12px 20px;
    border-radius: 12px;
    margin-bottom: 8px;
    font-weight: 600;
    transition: all 0.2s;
}

.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active {
    background-color: rgba(14, 165, 233, 0.1);
    /* Soft Sky Blue */
    color: var(--accent-color);
}

.sidebar-nav .nav-link.active {
    background-color: var(--accent-color);
    color: white;
}

.task-card {
    border-left: 4px solid transparent;
    transition: all 0.2s;
}

.task-card:hover {
    background-color: #f8f9fa;
}

.task-card.completed {
    border-left-color: #0ea5e9;
    background-color: rgba(14, 165, 233, 0.05);
}

.task-card.pending {
    border-left-color: #000000;
}

.certificate-locked {
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all 0.4s;
}

.certificate-locked:hover {
    filter: grayscale(0%);
    opacity: 1;
}