/* Base styles and custom utilities */
html {
    scroll-behavior: smooth;
}

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

/* Custom selection color */
::selection {
    background-color: rgba(13, 148, 136, 0.2);
    color: #0f766e;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Navbar scroll state */
.navbar-scrolled {
    background: rgba(255, 255, 255, 0.97) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

/* Service card hover - icon scale */
.service-card .service-icon {
    transition: transform 0.3s ease;
}
.service-card:hover .service-icon {
    transform: scale(1.1) rotate(-3deg);
}

/* Fade-in animation for scroll */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.fade-in-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.fade-in-stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.fade-in-stagger.visible > *:nth-child(3) { transition-delay: 0.15s; }
.fade-in-stagger.visible > *:nth-child(4) { transition-delay: 0.2s; }
.fade-in-stagger.visible > *:nth-child(5) { transition-delay: 0.25s; }
.fade-in-stagger.visible > *:nth-child(6) { transition-delay: 0.3s; }
.fade-in-stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile menu animation */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
#mobile-menu.open {
    max-height: 400px;
}

/* Geometric shape float animation */
@keyframes float {
    0%, 100% { transform: translateY(0) rotate(12deg); }
    50% { transform: translateY(-12px) rotate(12deg); }
}
@keyframes float-reverse {
    0%, 100% { transform: translateY(0) rotate(-12deg); }
    50% { transform: translateY(12px) rotate(-12deg); }
}
@keyframes float-circle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
.geo-float { animation: float 6s ease-in-out infinite; }
.geo-float-reverse { animation: float-reverse 5s ease-in-out infinite; }
.geo-float-circle { animation: float-circle 4s ease-in-out infinite; }

/* Pulse dot */
@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}
.animate-pulse-dot {
    animation: pulse-dot 2s ease-in-out infinite;
}

/* Image hover zoom */
img {
    transition: transform 0.5s ease;
}
.rounded-3xl:hover img {
    transform: scale(1.03);
}