/* Custom Root Variables */
:root {
    --primary-gradient: linear-gradient(90deg, #5b21b6, #a855f7);
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.2);
    --text-primary: #f3e8ff;
    --text-secondary: #d8b4fe;
}

/* Base Styles */
body {
    font-family: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #e0e7ff, #f3e8ff, #fce7f3);
    color: #1f2937;
    scroll-behavior: smooth;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

/* Glassmorphism Effect with Fallback */
.glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
}

/* Fallback for browsers without backdrop-filter support */
@supports not (backdrop-filter: blur(12px)) {
    .glass {
        background: rgba(255, 255, 255, 0.3);
    }
}

.glass:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* Header Styles */
.header-gradient {
    background: var(--primary-gradient);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.navbar {
    padding: 1rem 0;
}

.navbar-brand {
    color: var(--text-primary) !important;
    font-size: 1.875rem;
    font-weight: 700;
    line-height: 1;
}

.navbar-nav .nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem;
    position: relative;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--text-secondary) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--text-secondary);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
    transition: transform 0.3s ease;
}

.navbar-toggler:hover {
    transform: scale(1.1);
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.95%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 1.75em;
    height: 1.75em;
}

.navbar-collapse {
    transition: transform 0.3s ease;
    transform-origin: top;
}

@media (max-width: 991px) {
    .navbar-collapse {
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        border-radius: 8px;
        padding: 1rem;
        margin-top: 0.5rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
        transform: translateY(-10px);
    }

    .navbar-collapse.show {
        transform: translateY(0);
    }

    .navbar-nav {
        align-items: center;
    }

    .navbar-nav .nav-link {
        padding: 0.75rem;
        font-size: 1.25rem;
        text-align: center;
        margin: 0.2rem 0;
    }

    .navbar-nav .nav-link::after {
        bottom: 0.25rem;
    }

    .navbar {
        padding: 0.5rem 0;
    }

    main {
        padding-top: 16px !important;
    }
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Button Styles */
.btn-gradient {
    background: var(--primary-gradient);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 9999px;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
    display: inline-block;
}

.btn-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-gradient:hover::before {
    left: 100%;
}

.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* Form Input Styles */
.form-input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 12px;
    width: 100%;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: #a855f7;
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.3);
}

/* Footer Icons */
.social-icon {
    transition: transform 0.3s ease, color 0.3s ease;
}

.social-icon:hover {
    transform: scale(1.2);
    color: #a855f7;
}

/* Features Section Background */
.features-bg {
    background: var(--primary-gradient);
}

/* Contact Section Background */
.contact-bg {
    background: linear-gradient(135deg, #4c1d95, #6b7280);
}

/* About Section Background */
.about-bg {
    background: linear-gradient(45deg, #6b7280, #4b5563);
    background-size: 200% 200%;
    animation: gradientShift 10s ease infinite;
}

/* Responsive Adjustments for Non-Header Sections */
@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr;
    }

    .text-5xl {
        font-size: 2.5rem;
    }

    .text-7xl {
        font-size: 3.5rem;
    }
}