html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f8f9ff;
    color: #0b1c30;
}

/* Header Elevation & Smooth Transition */
header {
    box-shadow: 0 4px 20px -2px rgba(0, 22, 54, 0.08);
    transition: box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease;
    will-change: box-shadow;
}

header.scrolled {
    box-shadow: 0 10px 30px -5px rgba(0, 22, 54, 0.15);
}

.glass-panel {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.ambient-shadow {
    box-shadow: 0 10px 40px -10px rgba(0, 22, 54, 0.08);
}

/* Mobile menu toggle */
#mobile-menu:not(.hidden) {
    display: flex;
}

/* Header Navigation Links & Active State */
.nav-link {
    position: relative;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-link:hover {
    color: #0060ac;
}

/* Active Link State */
.nav-link.active {
    color: #0060ac !important;
    font-weight: 700 !important;
}

/* Active indicator underline for desktop */
@media (min-width: 1024px) {
    .nav-link.active::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 100%;
        height: 2px;
        background-color: #0060ac;
        border-radius: 2px 2px 0 0;
    }
}

/* Mobile menu specific active link styling */
#mobile-menu .nav-link {
    padding: 0.625rem 0.875rem;
    border-radius: 0.5rem;
}

#mobile-menu .nav-link.active {
    background-color: rgba(0, 96, 172, 0.08);
}

#mobile-menu .nav-link.active::after {
    display: none;
}

/* Footer Link Active State */
.footer-link {
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: #0060ac;
}

.footer-link.active {
    color: #0060ac !important;
    font-weight: 700 !important;
    text-decoration: underline;
    text-underline-offset: 4px;
}

@layer utilities {
    .material-symbols-outlined {
        font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    }
}

.custom-shadow {
    box-shadow: 0px 4px 15px rgba(0, 22, 54, 0.04);
}

/* Step Transitions & Price Inquiry Styles */
.step-transition {
    transition: opacity 0.35s ease-in-out, transform 0.35s ease-in-out;
}

.step-transition.fade-out {
    opacity: 0;
    transform: translateY(10px);
}

.step-transition.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.radio-card-selected {
    border-color: #0060ac !important;
    background-color: rgba(0, 96, 172, 0.04) !important;
    box-shadow: 0 0 0 1px #0060ac;
}

.timeslot-chip.selected {
    background-color: #001636 !important;
    color: #ffffff !important;
    border-color: #001636 !important;
}