/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }

/* ── Hero Gradient ── */
.hero-gradient {
    background: linear-gradient(135deg, #16181c 0%, #25282e 30%, #373c44 60%, #4b5059 100%);
}
.hero-gradient::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 20% 40%, rgba(255,127,80,0.15) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 60%, rgba(255,143,110,0.1) 0%, transparent 50%);
}

/* ── Hero Animations ── */
.hero-eyebrow {
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeUp 0.8s ease forwards 0.2s;
}
.hero-headline {
    opacity: 0;
    transform: translateY(30px);
    animation: heroFadeUp 0.8s ease forwards 0.4s;
}
.hero-subtitle {
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeUp 0.8s ease forwards 0.6s;
}
.hero-ctas {
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeUp 0.8s ease forwards 0.8s;
}
.hero-scroll-indicator {
    opacity: 0;
    animation: heroFadeUp 0.8s ease forwards 1.2s;
}
@keyframes heroFadeUp {
    to { opacity: 1; transform: translateY(0); }
}

/* ── Reveal Sections (below the fold) ── */
.reveal-section {
    opacity: 1;
}
.reveal-text, .reveal-left, .reveal-right, .reveal-image {
    opacity: 1;
    transform: none;
}
.reveal-image {
    transition: transform 0.7s ease;
}
.gallery-item img {
    transition: transform 0.7s ease;
}

/* ── Navbar ── */
.nav-link { position: relative; }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

/* ── Scroll-triggered reveals ── */
.reveal-section[data-reveal="true"] .reveal-text,
.reveal-section[data-reveal="true"] .reveal-left,
.reveal-section[data-reveal="true"] .reveal-right {
    animation: revealUp 0.7s ease forwards;
}
.reveal-section[data-reveal="true"] .reveal-image {
    animation: revealImage 0.9s ease forwards;
}
.reveal-section[data-reveal="true"] .gallery-item {
    animation: revealUp 0.6s ease forwards;
}
.reveal-section[data-reveal="true"] .gallery-item:nth-child(1) { animation-delay: 0s; }
.reveal-section[data-reveal="true"] .gallery-item:nth-child(2) { animation-delay: 0.1s; }
.reveal-section[data-reveal="true"] .gallery-item:nth-child(3) { animation-delay: 0.2s; }
.reveal-section[data-reveal="true"] .gallery-item:nth-child(4) { animation-delay: 0.3s; }
.reveal-section[data-reveal="true"] .gallery-item:nth-child(5) { animation-delay: 0.4s; }
.reveal-section[data-reveal="true"] .gallery-item:nth-child(6) { animation-delay: 0.5s; }

@keyframes revealUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes revealImage {
    from { opacity: 0; transform: scale(1.03); }
    to { opacity: 1; transform: scale(1); }
}

/* ── Service Cards ── */
.service-icon {
    transition: transform 0.4s ease;
}
.service-card:hover .service-icon {
    transform: translateY(-4px);
}

/* ── Buttons ── */
.btn-submit {
    position: relative;
    overflow: hidden;
}
.btn-submit::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s ease;
}
.btn-submit:hover::before { left: 100%; }

/* ── Mobile Menu ── */
.mobile-nav-link { display: block; }

/* ── Reduced Motion ── */
@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; }
    .reveal-section[data-reveal="true"] .reveal-text,
    .reveal-section[data-reveal="true"] .reveal-left,
    .reveal-section[data-reveal="true"] .reveal-right {
        animation: none;
        opacity: 1;
        transform: none;
    }
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .hero-headline { font-size: 2.5rem; }
    @media (min-width: 769px) { .hero-headline { font-size: 3.75rem; } }
    @media (min-width: 1024px) { .hero-headline { font-size: 4.5rem; } }
    @media (min-width: 1280px) { .hero-headline { font-size: 5rem; } }
}