/* Base */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    overflow-x: hidden;
}

::selection {
    background: rgba(125, 211, 192, 0.2);
    color: #0a1628;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #0a1628;
}
::-webkit-scrollbar-thumb {
    background: rgba(125, 211, 192, 0.3);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(125, 211, 192, 0.5);
}

/* Navbar */
#navbar {
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    transition: background-color 0.5s ease, backdrop-filter 0.5s ease, box-shadow 0.5s ease;
}

#navbar.scrolled {
    background-color: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #7dd3c0;
    transition: width 0.3s ease;
}

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

/* Mobile Menu */
.mobile-link {
    font-size: 1.75rem;
}

#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.open .mobile-link {
    animation: fadeUp 0.4s ease forwards;
}

#mobile-menu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
}

#menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

#menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}

#menu-btn.active .menu-line:nth-child(3) {
    width: 1.5rem;
    transform: rotate(-45deg) translate(3px, -3px);
}

/* Hero Animations */
.hero-subtitle {
    animation: fadeInUp 0.8s ease 0.3s forwards;
}

.hero-title {
    animation: fadeInUp 0.8s ease 0.5s forwards;
}

.hero-tagline {
    animation: fadeInUp 0.8s ease 0.7s forwards;
}

.hero-cta {
    animation: fadeInUp 0.8s ease 0.9s forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Indicator */
.scroll-line {
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 0.6; transform: scaleY(1.2); }
}

/* Reveal Animations */
.reveal-section {
    /* Default state: visible for progressive enhancement */
}

.reveal-section.revealed {
    animation: revealUp 0.7s ease forwards;
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid #7dd3c0;
    outline-offset: 2px;
}

/* Form inputs */
input::placeholder, textarea::placeholder {
    color: rgba(10, 22, 40, 0.15);
}

/* Service card hover */
.reveal-section.bg-white:hover {
    transform: translateY(-2px);
    transition: transform 0.3s ease;
}

/* Map pulse */
@keyframes mapPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(125, 211, 192, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(125, 211, 192, 0); }
}

.animate-pulse {
    animation: mapPulse 2s ease-in-out infinite;
}