/* ── Custom Properties ── */
:root {
    --terra-500: #B8572D;
    --terra-400: #ee7352;
    --sand-100: #faf5ec;
    --bark-900: #2a1e16;
    --bark-950: #1a120c;
}

/* ── Base ── */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

/* ── Navbar ── */
.nav-text {
    transition: color 0.3s ease;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--terra-500);
    transition: width 0.3s ease;
}

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

/* ── Floating cards ── */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

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

.floating-card {
    animation: float 4s ease-in-out infinite;
}

.floating-card.animate-float-delayed {
    animation: float-delayed 4.5s ease-in-out infinite;
    animation-delay: 0.5s;
}

/* ── Scroll line ── */
@keyframes scroll-line {
    0% { top: -100%; }
    100% { top: 100%; }
}

.animate-scroll-line {
    animation: scroll-line 2s ease-in-out infinite;
}

/* ── Service cards ── */
.service-card {
    will-change: transform;
}

/* ── Testimonial cards ── */
.testimonial-card {
    will-change: transform;
}

/* ── Scroll reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease, transform 0.7s 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; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

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

#menu-toggle.active #bar1 {
    transform: translateY(6px) rotate(45deg);
}

#menu-toggle.active #bar2 {
    opacity: 0;
}

#menu-toggle.active #bar3 {
    transform: translateY(-6px) rotate(-45deg);
}

/* ── Selection ── */
::selection {
    background: var(--terra-500);
    color: white;
}

/* ── Focus visible ── */
:focus-visible {
    outline: 2px solid var(--terra-500);
    outline-offset: 2px;
}

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

::-webkit-scrollbar-track {
    background: var(--sand-100);
}

::-webkit-scrollbar-thumb {
    background: var(--terra-500);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--terra-600);
}