/* ============================================================
   KOSHA — Tailwind companion stylesheet
   Holds custom component styles that don't fit cleanly in utility classes:
   scroll-driven header, reveal animations, service/step cards, portfolio,
   filter buttons, and form inputs.
   ============================================================ */

html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* ---------- Preloader ---------- */
#preloader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #161412;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

#preloader .loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

#preloader .loader-logo {
    width: 180px;
    max-width: 60vw;
    height: auto;
    animation: kosha-pulse 1.8s ease-in-out infinite;
    filter: drop-shadow(0 8px 28px rgba(168, 117, 68, 0.25));
}

#preloader .loader-bar {
    position: relative;
    width: 220px;
    max-width: 70vw;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    overflow: hidden;
    border-radius: 2px;
}

#preloader .loader-bar span {
    position: absolute;
    inset: 0 auto 0 0;
    width: 40%;
    background: linear-gradient(90deg, transparent, #a87544, #8b5a2b, transparent);
    animation: kosha-slide 1.4s ease-in-out infinite;
}

@keyframes kosha-pulse {
    0%, 100% { opacity: 0.85; transform: scale(1); }
    50%      { opacity: 1;    transform: scale(1.04); }
}

@keyframes kosha-slide {
    0%   { left: -40%; }
    100% { left: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    #preloader .loader-logo,
    #preloader .loader-bar span { animation: none; }
}

/* ---------- Hero logo ---------- */
.home-logo {
    display: block;
    width: clamp(217px, 31vw, 405px);
    max-width: 100%;
    height: auto;
    margin-inline: auto;
    filter: brightness(2) invert(1) drop-shadow(0 12px 32px rgba(0, 0, 0, 0.45));
}

@media (max-width: 640px) {
    .home-logo {
        width: clamp(173px, 55vw, 275px);
    }
}

.hero-bg-video,
.hero-poster {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero-bg-video {
    z-index: 1;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.hero-bg-video.is-ready {
    opacity: 1;
}

.hero-bg-video.is-ready ~ .hero-poster {
    opacity: 0;
}

.hero-poster {
    z-index: 0;
    transition: opacity 0.6s ease;
}

.hero-overlay {
    z-index: 2;
}

@media (min-width: 769px) {
    .hero-bg-video {
        object-fit: contain;
        transform: scale(2.45);
    }

    .hero-bg-video.is-ready ~ .hero-poster {
        opacity: 0.38;
        filter: blur(10px) scale(1.04);
    }
}

/* ---------- Header scroll state ---------- */
#site-header {
    background: transparent;
}

#site-header.scrolled {
    background: rgba(22, 20, 18, 0.85);
    backdrop-filter: saturate(150%) blur(14px);
    -webkit-backdrop-filter: saturate(150%) blur(14px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.nav-brand {
    transition: color 0.3s ease;
}

/* ---------- Reveal animation ---------- */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1);
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Services ---------- */
.service-card {
    background: #ffffff;
    border: 1px solid rgba(22, 20, 18, 0.06);
    border-radius: 1rem;
    padding: 2rem;
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.service-card:hover {
    transform: translateY(-6px);
    border-color: rgba(168, 117, 68, 0.35);
    box-shadow: 0 30px 60px -30px rgba(82, 51, 23, 0.25);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 9999px;
    background: #f5f0e8;
    color: #8b5a2b;
    font-size: 1.25rem;
    margin-bottom: 1.25rem;
    transition: background 0.3s ease, color 0.3s ease;
}

.service-card:hover .service-icon {
    background: #8b5a2b;
    color: #fff;
}

/* ---------- Workshop steps ---------- */
.step-tile {
    position: relative;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1rem;
    padding: 2rem 1.75rem 1.75rem;
    transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
    overflow: hidden;
}

.step-tile::before {
    content: "";
    position: absolute;
    inset: auto -40% -60% auto;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(168, 117, 68, 0.25), transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.step-tile:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(168, 117, 68, 0.4);
    transform: translateY(-4px);
}

.step-tile:hover::before { opacity: 1; }

.step-num {
    display: inline-block;
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.5rem;
    color: #a87544;
    line-height: 1;
    margin-bottom: 0.75rem;
}

/* ---------- Portfolio ---------- */
.portfolio-card {
    position: relative;
    overflow: hidden;
    border-radius: 0.85rem;
    background: #efe6d6;
    aspect-ratio: 4 / 5;
    cursor: pointer;
    /* skip rendering work for off-screen cards */
    content-visibility: auto;
    contain-intrinsic-size: 320px 400px;
}

.portfolio-card.is-hidden {
    display: none;
}

.portfolio-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    background: #efe6d6;
}

.portfolio-card:hover img {
    transform: scale(1.06);
}

.portfolio-info {
    position: absolute;
    inset: auto 0 0 0;
    padding: 1rem 1.25rem;
    background: linear-gradient(to top, rgba(22, 20, 18, 0.92), transparent);
    color: #fff;
    transform: translateY(20%);
    opacity: 0;
    transition: transform 0.4s ease, opacity 0.4s ease;
}

.portfolio-card:hover .portfolio-info {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-info h4 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.35rem;
    margin: 0;
}

.portfolio-info p {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
    margin-top: 0.15rem;
}

/* ---------- CTA pill (nav "Teklif Al" / "Get a Quote") ---------- */
.cta-pill {
    --pill-fg: #ffffff;
    --pill-border: rgba(255, 255, 255, 0.25);
    --pill-accent: #8b5a2b;
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.4rem 0.45rem 0.4rem 1.15rem;
    border-radius: 9999px;
    border: 1px solid var(--pill-border);
    background: transparent;
    color: var(--pill-fg);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    line-height: 1;
    overflow: hidden;
    isolation: isolate;
    transition: border-color 0.4s ease, color 0.4s ease, padding-right 0.4s ease;
}

.cta-pill::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--pill-accent);
    transform: translateX(-101%);
    transition: transform 0.5s cubic-bezier(0.65, 0, 0.35, 1);
    z-index: -1;
}

.cta-pill:hover {
    border-color: var(--pill-accent);
    padding-right: 0.55rem;
}

.cta-pill:hover::before {
    transform: translateX(0);
}

.cta-pill .pill-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.85rem;
    height: 1.85rem;
    border-radius: 9999px;
    background: var(--pill-accent);
    color: #fff;
    font-size: 0.7rem;
    transition: background 0.4s ease, transform 0.5s cubic-bezier(0.65, 0, 0.35, 1);
}

.cta-pill:hover .pill-icon {
    background: rgba(255, 255, 255, 0.18);
    transform: translateX(2px);
}

.cta-pill .pill-icon i {
    transition: transform 0.4s ease;
}

.cta-pill:hover .pill-icon i {
    transform: translateX(2px);
}

/* ---------- Lightbox ---------- */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 13, 11, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
    padding: 5rem 1.5rem 1.5rem;
}

.lightbox.is-open {
    opacity: 1;
    visibility: visible;
}

body.lb-lock { overflow: hidden; }

.lightbox-stage {
    position: relative;
    max-width: min(1100px, 92vw);
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    transform: scale(0.97);
    transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1);
    margin: 0;
}

.lightbox.is-open .lightbox-stage { transform: scale(1); }

.lightbox-img {
    display: block;
    max-width: 100%;
    max-height: 78vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 0.5rem;
    box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.6);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox-img.is-loaded { opacity: 1; }

.lightbox-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 38px;
    height: 38px;
    margin: -19px 0 0 -19px;
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-top-color: #a87544;
    border-radius: 50%;
    animation: lb-spin 0.9s linear infinite;
    opacity: 1;
    transition: opacity 0.2s ease;
}

.lightbox-img.is-loaded ~ .lightbox-spinner,
.lightbox-stage:has(.is-loaded) .lightbox-spinner { opacity: 0; }

@keyframes lb-spin { to { transform: rotate(360deg); } }

.lightbox-caption {
    display: flex;
    align-items: baseline;
    gap: 0.85rem;
    color: #fff;
    font-size: 0.85rem;
}

.lightbox-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.4rem;
    line-height: 1;
}

.lightbox-meta {
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.7rem;
}

.lightbox-close,
.lightbox-nav {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
    border-radius: 9999px;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
    z-index: 2;
}

.lightbox-close:hover,
.lightbox-nav:hover {
    background: rgba(168, 117, 68, 0.85);
    border-color: rgba(168, 117, 68, 0.85);
}

.lightbox-close {
    top: 1.25rem;
    right: 1.25rem;
}

.lightbox-prev { left: 1.25rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1.25rem; top: 50%; transform: translateY(-50%); }

.lightbox-prev:hover { transform: translate(-3px, -50%); }
.lightbox-next:hover { transform: translate(3px, -50%); }

@media (max-width: 640px) {
    .lightbox-prev { left: 0.5rem; }
    .lightbox-next { right: 0.5rem; }
    .lightbox-close { top: 0.75rem; right: 0.75rem; }
}

@media (prefers-reduced-motion: reduce) {
    .lightbox,
    .lightbox-stage,
    .lightbox-img,
    .lightbox-spinner { transition: none; animation: none; }
}

/* ---------- Filter buttons ---------- */
.filter-btn {
    padding: 0.6rem 1.5rem;
    border-radius: 9999px;
    border: 1px solid rgba(22, 20, 18, 0.15);
    background: transparent;
    color: #2a2622;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.filter-btn:hover {
    border-color: #8b5a2b;
    color: #8b5a2b;
}

.filter-btn.active {
    background: #161412;
    color: #fff;
    border-color: #161412;
}

/* ---------- Form ---------- */
.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    padding: 0.9rem 1.1rem;
    color: #fff;
    font-size: 0.95rem;
    transition: border-color 0.25s ease, background 0.25s ease;
}

.form-input::placeholder { color: rgba(255, 255, 255, 0.45); }

.form-input:focus {
    outline: none;
    border-color: #a87544;
    background: rgba(255, 255, 255, 0.07);
}

.form-input.is-invalid {
    border-color: #c44545;
    background: rgba(196, 69, 69, 0.08);
}

/* ---------- Back to top ---------- */
#back-to-top.is-visible {
    opacity: 1;
    pointer-events: auto;
}

/* ---------- Mobile menu ---------- */
#mobile-menu.is-open { display: block; }

/* ---------- Selection ---------- */
::selection {
    background: #8b5a2b;
    color: #fff;
}