/* NATYANUT — Custom styles (beyond Tailwind) */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-navy: #0f172a;
    --color-slate: #64748b;
    --header-h: 76px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #1e293b;
    background: #ffffff;
    overflow-x: hidden;
}

/* ── Header ─────────────────────────────────────── */
#site-header {
    transition: background-color 0.35s ease, box-shadow 0.35s ease, backdrop-filter 0.35s ease, border-color 0.35s ease;
    border-bottom: 1px solid transparent;
}

#site-header.header-scrolled {
    background-color: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px) saturate(1.4);
    -webkit-backdrop-filter: blur(16px) saturate(1.4);
    box-shadow: 0 4px 24px -4px rgba(15, 23, 42, 0.08);
    border-bottom-color: rgba(226, 232, 240, 0.8);
}

/* Logo shine */
.logo-shine::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.35) 50%, transparent 60%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}
.logo-link:hover .logo-shine::after {
    transform: translateX(100%);
}

/* Desktop nav pills */
.nav-pills {
    flex-wrap: nowrap;
}

.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: #475569;
    border-radius: 9999px;
    white-space: nowrap;
    line-height: 1.2;
    transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

@media (min-width: 1280px) {
    .nav-link {
        padding: 0.45rem 0.7rem;
        font-size: 0.8125rem;
    }
}

@media (min-width: 1536px) {
    .nav-link {
        padding: 0.5rem 0.8rem;
        font-size: 0.875rem;
    }
}

.nav-link:hover {
    color: #2563eb;
    background-color: rgba(255, 255, 255, 0.95);
}

.nav-link.is-active {
    color: #2563eb;
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
    font-weight: 600;
}

.nav-link-accent {
    color: #1d4ed8;
    font-weight: 600;
}

.nav-link-accent:hover,
.nav-link-accent.is-active {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    color: #1d4ed8;
}

/* Nav "Ещё" dropdown */
.nav-more-btn {
    gap: 0;
}

.nav-more-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 180px;
    padding: 0.4rem;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.875rem;
    box-shadow: 0 12px 32px -8px rgba(15, 23, 42, 0.15);
    z-index: 60;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.nav-more.is-open .nav-more-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-more.is-open .nav-more-btn {
    color: #2563eb;
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

.nav-more.is-open .nav-more-btn svg {
    transform: rotate(180deg);
}

.nav-more-btn svg {
    transition: transform 0.2s ease;
}

.nav-more-item {
    display: block;
    padding: 0.55rem 0.85rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: #334155;
    border-radius: 0.5rem;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.nav-more-item:hover {
    background-color: #eff6ff;
    color: #2563eb;
}

.nav-more-item.is-active {
    background-color: #eff6ff;
    color: #1d4ed8;
    font-weight: 600;
}

/* CTA glow pulse */
.btn-glow {
    position: relative;
}
.btn-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(135deg, #3b82f6, #2563eb, #1d4ed8);
    z-index: -1;
    opacity: 0;
    filter: blur(8px);
    transition: opacity 0.3s ease;
}
.btn-glow:hover::before {
    opacity: 0.55;
}

/* Mobile menu */
#mobile-menu {
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

#mobile-menu.menu-open {
    transform: translateX(0);
}

#mobile-menu-overlay {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

#mobile-menu-overlay.overlay-visible {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-link {
    display: block;
    padding: 0.85rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    color: #334155;
    border-radius: 0.75rem;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
    background-color: #eff6ff;
    color: #2563eb;
    transform: translateX(4px);
}

.mobile-nav-link-accent {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    color: #1d4ed8;
    font-weight: 600;
}

/* Hamburger */
#mobile-menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: #0f172a;
    border-radius: 1px;
    transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.2s ease;
}

#mobile-menu-toggle.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
#mobile-menu-toggle.is-active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
#mobile-menu-toggle.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Particles ──────────────────────────────────── */
#particles-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* ── Reveal animations (stronger) ───────────────── */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition:
        opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-scale {
    opacity: 0;
    transform: translateY(32px) scale(0.96);
    transition:
        opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.revealed {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-36px);
    transition:
        opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(36px);
    transition:
        opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-delay-1 { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }
.reveal-delay-3 { transition-delay: 0.36s; }
.reveal-delay-4 { transition-delay: 0.48s; }
.reveal-delay-5 { transition-delay: 0.6s; }

@media (prefers-reduced-motion: reduce) {
    .reveal,
    .reveal-scale,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .float-badge,
    .blob,
    .hero-img,
    .animate-pulse-soft,
    .section-line::after {
        animation: none !important;
    }
}

/* ── Floating badges ────────────────────────────── */
.float-badge {
    animation: floatY 4.5s ease-in-out infinite;
}

.float-badge-delayed {
    animation-delay: 1.2s;
    animation-duration: 5s;
}

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

@keyframes pulseSoft {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.65; transform: scale(0.92); }
}

.animate-pulse-soft {
    animation: pulseSoft 2s ease-in-out infinite;
}

/* Blobs subtle drift */
.blob {
    animation: blobDrift 12s ease-in-out infinite;
}

.blob-2 {
    animation-delay: 3s;
    animation-duration: 14s;
}

@keyframes blobDrift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(12px, -10px) scale(1.05); }
    66% { transform: translate(-8px, 8px) scale(0.97); }
}

/* Hero image subtle zoom on load */
.hero-img {
    transition: transform 8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.revealed .hero-img {
    transform: scale(1.03);
}

/* ── Section title accent line ──────────────────── */
.section-line {
    position: relative;
    display: inline-block;
}

.section-line::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -10px;
    width: 0;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, #2563eb, #93c5fd);
    transform: translateX(-50%);
    transition: width 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}

.reveal.revealed .section-line::after,
.section-line.line-visible::after {
    width: 48px;
}

/* ── Cards hover ────────────────────────────────── */
.feature-card,
.condition-card,
.ceiling-card {
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 0.35s ease,
                border-color 0.3s ease;
}

.feature-card:hover,
.condition-card:hover,
.ceiling-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px -12px rgba(15, 23, 42, 0.14);
}

.condition-card:hover {
    border-color: rgba(37, 99, 235, 0.2);
    background-color: #fff;
}

.feature-card .icon-wrap,
.condition-card .icon-wrap {
    transition: transform 0.35s ease, background-color 0.3s ease;
}

.feature-card:hover .icon-wrap,
.condition-card:hover .icon-wrap {
    transform: scale(1.08);
}

/* Icon bounce on hover for primary icons */
.feature-card:hover .w-11,
.condition-card:hover .w-12 {
    transform: scale(1.08) rotate(-3deg);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── Masonry Gallery ────────────────────────────── */
.masonry {
    column-count: 1;
    column-gap: 1rem;
}

@media (min-width: 640px) {
    .masonry { column-count: 2; }
}
@media (min-width: 1024px) {
    .masonry { column-count: 3; }
}
@media (min-width: 1280px) {
    .masonry { column-count: 4; }
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: 1rem;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border-radius: 0.75rem;
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.masonry-item:hover {
    box-shadow: 0 12px 28px -8px rgba(15, 23, 42, 0.2);
}

.masonry-item img {
    width: 100%;
    display: block;
    transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.masonry-item:hover img {
    transform: scale(1.06);
}

.masonry-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.6), transparent 55%);
    opacity: 0;
    transition: opacity 0.35s ease;
    display: flex;
    align-items: flex-end;
    padding: 1rem;
}

.masonry-item:hover .masonry-overlay {
    opacity: 1;
}

/* ── Lightbox ───────────────────────────────────── */
#lightbox {
    transition: opacity 0.3s ease;
    opacity: 0;
}

#lightbox.lightbox-open {
    opacity: 1;
}

#lightbox-img {
    max-width: min(90vw, 1100px);
    max-height: 85vh;
    object-fit: contain;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ── Timeline ───────────────────────────────────── */
.timeline-line {
    position: absolute;
    left: 1.25rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #2563eb, #93c5fd);
}

@media (min-width: 768px) {
    .timeline-line {
        left: 50%;
        transform: translateX(-50%);
    }
}

.timeline-step-num {
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.reveal.revealed .timeline-step-num {
    animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes popIn {
    from { transform: scale(0.6); opacity: 0.5; }
    to { transform: scale(1); opacity: 1; }
}

/* ── Calculator ranges ──────────────────────────── */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 999px;
    background: #e2e8f0;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #2563eb;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.4);
    transition: transform 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.12);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #2563eb;
    cursor: pointer;
    border: none;
}

.ceiling-type-label {
    transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.ceiling-type-label:hover {
    transform: translateY(-1px);
}

input[name="ceiling-type"]:checked + .ceiling-type-label {
    border-color: #2563eb;
    background-color: #eff6ff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.method-label {
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

input[name="contact-method"]:checked + .method-label {
    border-color: #2563eb;
    background-color: #eff6ff;
}

/* Price total pop */
#price-total {
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#price-total.price-bump {
    transform: scale(1.06);
}

/* ── Modal ──────────────────────────────────────── */
.modal {
    transition: opacity 0.3s ease;
    opacity: 0;
}

.modal.modal-open {
    opacity: 1;
}

.modal .modal-panel {
    transform: translateY(20px) scale(0.96);
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.modal.modal-open .modal-panel {
    transform: translateY(0) scale(1);
}

.input-error {
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

/* ── FAQ ────────────────────────────────────────── */
[data-faq-panel] {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-open [data-faq-icon] {
    transform: rotate(180deg);
}

[data-faq-icon] {
    transition: transform 0.3s ease;
}

[data-faq-item] {
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.faq-open {
    border-color: rgba(37, 99, 235, 0.25) !important;
    box-shadow: 0 4px 16px -4px rgba(37, 99, 235, 0.1);
}

/* ── Focus visible ──────────────────────────────── */
:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
    outline: none;
}

/* ── Swiper overrides ───────────────────────────── */
.reviews-pagination .swiper-pagination-bullet {
    background: #94a3b8;
    opacity: 1;
    transition: background 0.25s ease, transform 0.25s ease;
}

.reviews-pagination .swiper-pagination-bullet-active {
    background: #2563eb;
    transform: scale(1.25);
}

/* Utility */
.section-padding {
    padding-top: 4.5rem;
    padding-bottom: 4.5rem;
}

@media (min-width: 768px) {
    .section-padding {
        padding-top: 6rem;
        padding-bottom: 6rem;
    }
}

/* Gradient text accent (optional utility) */
.text-gradient {
    background: linear-gradient(135deg, #1d4ed8, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Soft grid background for sections */
.bg-grid-soft {
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
}

/* Stagger children helper — applied via JS data attribute */
.stagger-children.revealed > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children.revealed > *:nth-child(2) { transition-delay: 0.12s; }
.stagger-children.revealed > *:nth-child(3) { transition-delay: 0.19s; }
.stagger-children.revealed > *:nth-child(4) { transition-delay: 0.26s; }
.stagger-children.revealed > *:nth-child(5) { transition-delay: 0.33s; }
.stagger-children.revealed > *:nth-child(6) { transition-delay: 0.4s; }
.stagger-children.revealed > *:nth-child(7) { transition-delay: 0.47s; }
.stagger-children.revealed > *:nth-child(8) { transition-delay: 0.54s; }