/* Base & Utilities */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

/* Scroll Reveal Animations */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.reveal[data-reveal-delay="1"] { transition-delay: 100ms; }
.reveal[data-reveal-delay="2"] { transition-delay: 200ms; }
.reveal[data-reveal-delay="3"] { transition-delay: 300ms; }
.reveal[data-reveal-delay="4"] { transition-delay: 400ms; }

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    .reveal.visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06), 0 4px 20px rgba(0, 0, 0, 0.04);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #0d9488, #2dd4bf);
    border-radius: 1px;
    transition: width 0.3s ease;
}

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

/* Mobile Menu */
#mobile-menu {
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f0fdfa;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #99f6e4, #2dd4bf);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #2dd4bf, #0d9488);
}

/* Selection */
::selection {
    background: rgba(13, 148, 136, 0.2);
    color: #134e4a;
}

/* Smooth image loading */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #14b8a6;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Subtle gradient text for hero */
.gradient-text {
    background: linear-gradient(135deg, #5eead4 0%, #2dd4bf 50%, #14b8a6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Card hover glow */
.glow-hover:hover {
    box-shadow: 0 0 40px rgba(13, 148, 136, 0.15);
}

/* Animated underline for section labels */
.section-label {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.section-label::before,
.section-label::after {
    content: '';
    width: 32px;
    height: 1px;
    background: linear-gradient(90deg, transparent, #5eead4);
}

.section-label::after {
    background: linear-gradient(90deg, #5eead4, transparent);
}

/* Pulse animation for status dot */
@keyframes softPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}

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