/* ── Reset & Base ── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #0A1628;
    color: #fff;
    padding: 8px 16px;
    z-index: 100;
    font-size: 14px;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
}

/* ── Hero Section ── */
.hero {
    position: relative;
    background: #fff;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(15, 31, 56, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #14B8A6;
    border-radius: 1px;
    transition: width 0.2s ease;
}

.nav-link:hover::after {
    width: 60%;
}

/* ── Service Cards ── */
.service-card {
    background: #fff;
    border: 1px solid rgba(10, 22, 40, 0.06);
    border-radius: 1.25rem;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #14B8A6, #0D9488);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(10, 22, 40, 0.08);
    border-color: transparent;
}

.service-card:hover::before {
    opacity: 1;
}

/* ── Testimonial Cards ── */
.testimonial-card {
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 48px rgba(10, 22, 40, 0.08);
}

/* ── Scroll Reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

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

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
}

/* ── Mobile Menu ── */
#mobile-menu {
    animation: slideDown 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Focus Styles ── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #5EEAD4;
    outline-offset: 2px;
}

/* ── Utility ── */
.text-balance {
    text-wrap: balance;
}