/* =============================================
   Aviation Medical Specialists — Custom Styles
   ============================================= */

/* ---- Base & Typography ---- */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- Custom Scrollbar ---- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f0f4ff;
}
::-webkit-scrollbar-thumb {
    background: #91a7ff;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #4c6ef3;
}

/* ---- Navbar ---- */
.navbar-scrolled #navbar {
    background: rgba(15, 29, 74, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.navbar-scrolled .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
}

.navbar-scrolled .nav-logo-text {
    color: white !important;
}

/* ---- Hero Animations ---- */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-up-delay {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

.fade-in-up-delay-2 {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Scroll Reveal (progressive enhancement) ---- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(40px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
}

/* ---- FAQ Accordion ---- */
.faq-item {
    transition: box-shadow 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 20px rgba(30, 58, 138, 0.06);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-content.open {
    max-height: 300px;
}

.faq-icon {
    flex-shrink: 0;
}

/* ---- Mobile Menu ---- */
.mobile-nav-link {
    position: relative;
    padding-left: 0;
}

.mobile-nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(to right, #4db896, #91a7ff);
    transition: width 0.3s ease;
}

.mobile-nav-link:hover::before {
    width: 16px;
}

/* ---- Input Focus Styles ---- */
input:focus,
select:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(77, 184, 150, 0.15);
}

/* ---- Button Hover Glow ---- */
button[type="submit"]:hover {
    box-shadow: 0 10px 40px rgba(30, 58, 138, 0.3) !important;
}

/* ---- Selection Color ---- */
::selection {
    background: rgba(77, 184, 150, 0.3);
    color: #1e3a8a;
}

/* ---- Print Styles ---- */
@media print {
    nav, .reveal, #contact-form, .faq-content {
        display: none !important;
    }
    body {
        color: #000;
        background: #fff;
    }
}