/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=Poppins:wght@400;600;700&display=swap');

:root {
    /* Brand Colors */
    /* Brand Colors */
    --primary-color: #93D500;
    /* Lime Green - Vibrancy */
    --secondary-color: #001689;
    /* Deep Blue - Trust */
    --accent-color: #7ab300;
    /* Slightly darker green for hover */

    /* Light Mode */
    --bg-color: #f8fafc;
    --text-color: #1e293b;
    --card-bg: rgba(255, 255, 255, 0.8);
    --nav-bg: rgba(255, 255, 255, 0.9);
    --accordion-color: #1e293b;
    --navbar-toggler-color: #1e293b;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 15px rgba(99, 102, 241, 0.3);

    /* Radii */
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Adaptive Text Colors (Light Mode Default) */
    --text-primary-adaptive: #65a30d;
    /* Darker green for readability on white */
    --text-secondary-adaptive: #001689;
    /* Brand Deep Blue */
}

/* Dark Mode Variables */
.dark-mode {
    --bg-color: #242f47;
    --text-color: #f1f5f9;
    --card-bg: rgba(30, 41, 59, 0.8);
    --nav-bg: rgba(15, 23, 42, 0.9);
    --accordion-color: #f1f5f9;
    --navbar-toggler-color: #f1f5f9;

    /* Adaptive Text Colors (Dark Mode) */
    --text-primary-adaptive: #93D500;
    /* Vibrant Lime Green */
    --text-secondary-adaptive: #f1f5f9;
    /* White/Slate 100 */
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    padding-top: 80px;
    /* Space for fixed navbar */
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
}

p {
    color: var(--text-secondary-adaptive);
}

.accordion-item {
    color: var(--accordion-color);
}

.accordion-button {
    color: var(--accordion-color);
}

.accordion-button:not(.collapsed) {
    color: var(--text-primary-adaptive);
}

/* Fix Accordion Arrow Color using Mask */
.accordion-button::after {
    background-image: none !important;
    -webkit-mask-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23212529'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    mask-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23212529'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: contain;
    mask-size: contain;
    background-color: currentColor;
}

/* Glassmorphism Utilities */
.glass {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-sm);
}

.text-primary {
    color: var(--text-primary-adaptive) !important;
}

.bg-primary {
    background-color: var(--primary-color) !important;
    color: var(--secondary-color) !important;
}

.text-secondary {
    color: var(--text-secondary-adaptive) !important;
}

.bg-secondary {
    background-color: var(--secondary-color) !important;
    color: white !important;
}

/* Navbar Customization */
.navbar {
    background-color: transparent;
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar.scrolled {
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    padding: 0.7rem 0;
}

@media (max-width: 991.98px) {
    .navbar-collapse {
        background-color: var(--nav-bg);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        padding: 1rem;
        border-radius: var(--radius-lg);
        margin-top: 10px;
        box-shadow: var(--shadow-md);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-toggler {
    color: var(--navbar-toggler-color);
    border-color: var(--navbar-toggler-color);
    /* Also colorful border */
}

/* Fix Navbar Toggler Icon Color using Mask */
.navbar-toggler-icon {
    background-image: none !important;
    -webkit-mask-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 0, 0, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    mask-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 0, 0, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: contain;
    mask-size: contain;
    background-color: currentColor;
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary-adaptive) !important;
    position: relative;
    margin: 0 10px;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

/* Buttons */
.btn-primary-gradient {
    background: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
    color: var(--secondary-color);
    /* Dark text for contrast on lime green */
    font-weight: 700;
    box-shadow: var(--shadow-glow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(147, 213, 0, 0.5);
    color: var(--secondary-color);
}

/* Cards */
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: var(--radius-lg);
    border: none;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.dark-mode .card {
    background-color: var(--card-bg);
    color: var(--text-color);
}

/* Dark Mode Toggle Button */
#theme-toggle {
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background: var(--card-bg);
    color: var(--text-color);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: white;
    margin-top: 5rem;
}

footer .text-muted {
    color: rgba(255, 255, 255, 0.7) !important;
}

footer a.text-muted:hover {
    color: var(--primary-color) !important;
}