/* Santosh Traders — custom styles on top of Tailwind */
:root {
    --gold: #D4AF37;
    --gold-light: #E8CC6E;
    --ink: #111111;
}

::selection { background: var(--gold); color: var(--ink); }

/* Navbar becomes solid after scrolling */
#navbar.scrolled { background: rgba(11, 11, 11, .92); backdrop-filter: blur(10px); box-shadow: 0 1px 0 rgba(255,255,255,.05); }
#navbar.scrolled nav { height: 4.5rem; }

.nav-link { position: relative; color: #d4d4d4; transition: color .3s; }
.nav-link::after { content: ''; position: absolute; left: 0; bottom: -6px; width: 0; height: 1px; background: var(--gold); transition: width .3s; }
.nav-link:hover, .nav-link.active { color: #fff; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.mobile-link { color: #d4d4d4; }
.mobile-link:hover { color: var(--gold); }

/* Buttons */
.btn-gold, .btn-outline, .btn-whatsapp {
    display: inline-flex; align-items: center; gap: .6rem;
    padding: 1rem 1.75rem; font-size: .8rem; font-weight: 700;
    letter-spacing: .15em; text-transform: uppercase;
    transition: all .3s ease; cursor: pointer;
}
.btn-gold { background: var(--gold); color: var(--ink); }
.btn-gold:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 10px 30px -10px rgba(212,175,55,.6); }
.btn-outline { border: 1px solid rgba(255,255,255,.3); color: #fff; }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-whatsapp { background: #25D366; color: #fff; }
.btn-whatsapp:hover { background: #1ebe5a; transform: translateY(-2px); box-shadow: 0 10px 30px -10px rgba(37,211,102,.6); }

/* Headings */
.eyebrow { display: flex; align-items: center; gap: .75rem; color: var(--gold); text-transform: uppercase; letter-spacing: .35em; font-size: .75rem; margin-bottom: 1rem; }
.eyebrow::before { content: ''; width: 2.5rem; height: 1px; background: var(--gold); }
.section-title { font-family: 'Playfair Display', Georgia, serif; color: #fff; font-size: clamp(2rem, 4vw, 3rem); line-height: 1.15; }

/* Services */
.service-card { background: #111; padding: 2.5rem; transition: background .4s; }
.service-card:hover { background: #1A1A1A; }

/* Portfolio filters */
.filter-btn { padding: .55rem 1.1rem; font-size: .75rem; letter-spacing: .15em; text-transform: uppercase; border: 1px solid rgba(255,255,255,.15); color: #a3a3a3; transition: all .3s; }
.filter-btn:hover { border-color: var(--gold); color: var(--gold); }
.filter-btn.active { background: var(--gold); border-color: var(--gold); color: var(--ink); }
.portfolio-item.is-hidden { display: none; }

/* Form */
.form-label { display: block; font-size: .7rem; letter-spacing: .15em; text-transform: uppercase; color: #a3a3a3; margin-bottom: .5rem; }
.form-input { width: 100%; background: #111; border: 1px solid rgba(255,255,255,.1); color: #fff; padding: .85rem 1rem; transition: border-color .3s; }
.form-input:focus { outline: none; border-color: var(--gold); }
.form-input:user-invalid { border-color: #ef4444; }
select.form-input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23D4AF37' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .9rem center; background-size: 1rem; padding-right: 2.5rem; }

.contact-icon { flex-shrink: 0; width: 3rem; height: 3rem; display: grid; place-items: center; border: 1px solid rgba(212,175,55,.4); color: var(--gold); }

/* Floating WhatsApp */
.wa-float {
    position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 50;
    width: 3.75rem; height: 3.75rem; border-radius: 9999px;
    display: grid; place-items: center; background: #25D366; color: #fff;
    box-shadow: 0 10px 25px -5px rgba(37,211,102,.5);
    transition: transform .3s;
}
.wa-float::before { content: ''; position: absolute; inset: 0; border-radius: inherit; background: #25D366; animation: wa-pulse 2s infinite; z-index: -1; }
.wa-float:hover { transform: scale(1.1); }
.wa-tooltip { position: absolute; right: calc(100% + .75rem); white-space: nowrap; background: #fff; color: var(--ink); font-size: .8rem; font-weight: 700; padding: .4rem .8rem; border-radius: .4rem; opacity: 0; transform: translateX(10px); transition: all .3s; pointer-events: none; }
.wa-float:hover .wa-tooltip { opacity: 1; transform: translateX(0); }
@keyframes wa-pulse { 0% { transform: scale(1); opacity: .6; } 100% { transform: scale(1.6); opacity: 0; } }
@media (max-width: 639px) { .wa-float { bottom: 4.5rem; right: 1rem; width: 3.25rem; height: 3.25rem; } }

/* Hero slow zoom */
.hero-zoom { animation: hero-zoom 20s ease-out forwards; }
@keyframes hero-zoom { from { transform: scale(1.15); } to { transform: scale(1); } }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0ms); }
.reveal.visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

#lightbox.open { display: flex; }
body.lb-open { overflow: hidden; }

details summary::-webkit-details-marker { display: none; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .reveal { opacity: 1; transform: none; }
}