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

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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(13, 148, 136, 0.15);
    color: #134e4a;
}

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

::-webkit-scrollbar-track {
    background: #f8fafc;
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Navigation */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 1px;
    background: #0d9488;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

.nav-link:hover {
    color: #0d9488;
}

/* Hero Animations */
.hero-eyebrow {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.hero-title {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

.hero-subtitle {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}

.hero-cta {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.8s;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    animation: fadeInUp 1s ease forwards;
    animation-delay: 1.2s;
    opacity: 0;
}

/* Section Styles */
.section-eyebrow {
    letter-spacing: 0.2em;
}

.section-title {
    color: #1e293b;
}

.section-subtitle {
    color: #64748b;
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal:nth-child(2) {
    transition-delay: 0.1s;
}

.reveal:nth-child(3) {
    transition-delay: 0.2s;
}

.reveal:nth-child(4) {
    transition-delay: 0.3s;
}

/* Service Cards */
.service-card {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease, border-color 0.5s ease;
}

.service-card:hover {
    transform: translateY(-4px);
}

/* Testimonial Cards */
.testimonial-card {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.5s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
}

/* Trust Items */
.trust-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.trust-item.revealed {
    opacity: 1;
    transform: translateY(0);
}

.trust-item:nth-child(1) { transition-delay: 0s; }
.trust-item:nth-child(2) { transition-delay: 0.1s; }
.trust-item:nth-child(3) { transition-delay: 0.2s; }
.trust-item:nth-child(4) { transition-delay: 0.3s; }

/* Step Numbers */
.step-number {
    box-shadow: 0 0 0 8px rgba(13, 148, 136, 0.1);
    transition: box-shadow 0.3s ease;
}

.step-number:hover {
    box-shadow: 0 0 0 12px rgba(13, 148, 136, 0.15);
}

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

input::placeholder,
textarea::placeholder {
    color: #94a3b8;
}

/* Mobile Menu */
#mobile-menu {
    transition: opacity 0.4s ease, pointer-events 0.4s ease;
}

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

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

/* Mobile Links */
.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* Navbar Background */
.nav-scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.nav-scrolled .nav-link {
    color: #475569;
}

.nav-scrolled .scroll-indicator {
    display: none;
}

/* Responsive */
@media (max-width: 767px) {
    .section-title {
        font-size: 2.25rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .trust-number {
        font-size: 2rem;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .section-title {
        font-size: 3rem;
    }
}