/* ═══════════════════════════════════════
   Manzolillo Chiropractic Center — Styles
   ═══════════════════════════════════════ */

/* ── Reset & Base ── */
*, *::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(27, 67, 50, 0.15);
    color: #1B4332;
}

/* ── Smooth scroll offset for fixed nav ── */
section[id] {
    scroll-margin-top: 80px;
}

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

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

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

/* ── Floating cards ── */
.card-float-1 {
    animation: float1 6s ease-in-out infinite;
}

.card-float-2 {
    animation: float2 7s ease-in-out infinite;
}

.card-float-3 {
    animation: float3 5.5s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(10px); }
}

@keyframes float3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

/* ── Service cards ── */
.service-card {
    transition: background-color 0.5s ease, transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-2px);
}

/* ── Scroll reveal (progressive enhancement) ── */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.revealed {
    opacity: 0;
    transform: translateY(30px);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .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; }
}

/* ── Mobile menu ── */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

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

.mobile-link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

#mobile-menu.closed .mobile-link {
    opacity: 0;
    transform: translateY(20px);
}

/* ── Contact form ── */
.form-input {
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
    padding: 12px 0;
    font-size: 14px;
    font-weight: 300;
    width: 100%;
    outline: none;
    transition: border-color 0.3s ease;
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-input:focus {
    border-bottom-color: rgba(255, 255, 255, 0.6);
}

.form-input.error {
    border-bottom-color: #f87171;
}

.error-message {
    color: #fca5a5;
    font-size: 12px;
    font-weight: 300;
    margin-top: 4px;
    display: none;
}

.success-message {
    display: none;
    text-align: center;
    padding: 20px;
}

.success-message.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

/* ── Accessibility ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .card-float-1, .card-float-2, .card-float-3 {
        animation: none;
    }
}

/* ── Focus styles ── */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid #1B4332;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ── Print styles ── */
@media print {
    nav, #mobile-menu, .card-float-1, .card-float-2, .card-float-3 {
        display: none !important;
    }

    body {
        background: white !important;
        color: black !important;
    }

    a {
        color: black !important;
    }
}