/* Custom styles for Dr. Sutapa Khatua website */

/* Base font smoothing */
html, body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Smooth scroll for anchor links */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #ecfdf5;
}

::-webkit-scrollbar-thumb {
    background: #a7f3d0;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #6ee7b7;
}

/* Selection color */
::selection {
    background: #d1fae5;
    color: #064e3b;
}

/* Navigation transition */
#navbar {
    transition: background-color 0.5s ease, backdrop-filter 0.5s ease, box-shadow 0.5s ease;
}

#navbar.scrolled {
    background-color: rgba(254, 253, 248, 0.92);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(6, 95, 70, 0.08);
}

/* Nav links underline animation */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #059669;
    transition: width 0.3s ease;
}

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

/* Mobile menu animations */
.mobile-link {
    opacity: 1;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Reveal animations */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal[data-reveal-delay="1"] {
    transition-delay: 0.1s;
}

.reveal[data-reveal-delay="2"] {
    transition-delay: 0.2s;
}

.reveal[data-reveal-delay="3"] {
    transition-delay: 0.3s;
}

.reveal[data-reveal-delay="4"] {
    transition-delay: 0.4s;
}

.reveal[data-reveal-delay="5"] {
    transition-delay: 0.5s;
}

.reveal[data-reveal-delay="6"] {
    transition-delay: 0.6s;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    * {
        transition-duration: 0.01ms !important;
    }
}

/* Form focus styles */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

/* Select arrow */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23059669' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
    padding-right: 2.5rem;
}

/* Button hover lift */
button, a {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Image hover zoom */
img {
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Gradient text utility */
.text-gradient {
    background: linear-gradient(135deg, #059669, #10b981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Subtle card border on hover */
.group:hover .group-hover\:border-emerald-400 {
    border-color: #6ee7b7;
}

/* Loading state for form */
button[type="submit"]:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Print styles */
@media print {
    nav, #contact, footer {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}