/* ============================================================
   BKP HOMES — Modern Enhancement Layer
   Loaded AFTER global.css so it refines & extends the base.
   Design language: luxury gold-on-black, glassmorphism,
   layered depth, cinematic scroll motion.
   ============================================================ */

:root {
    /* --- Brand palette (extended) --- */
    --gold: #d4af37;
    --gold-soft: #e8cd7a;
    --gold-deep: #b5952f;
    --gold-glow: rgba(212, 175, 55, 0.45);
    --ink: #0f0f0f;
    --ink-soft: #1a1a1a;
    --ink-700: #222225;
    --cream: #f7f5f0;
    --cream-2: #efece4;

    /* --- Signature gradients --- */
    --grad-gold: linear-gradient(135deg, #f3dd92 0%, #d4af37 45%, #b5952f 100%);
    --grad-ink: linear-gradient(160deg, #161616 0%, #0c0c0c 100%);
    --grad-sheen: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.25) 50%, transparent 70%);

    /* --- Radii --- */
    --r-sm: 8px;
    --r-md: 16px;
    --r-lg: 24px;
    --r-xl: 32px;
    --r-pill: 999px;

    /* --- Elevation (soft, layered) --- */
    --shadow-sm: 0 2px 8px rgba(15, 15, 15, 0.06);
    --shadow-md: 0 12px 30px rgba(15, 15, 15, 0.08), 0 4px 10px rgba(15, 15, 15, 0.04);
    --shadow-lg: 0 30px 60px -20px rgba(15, 15, 15, 0.22), 0 10px 22px -12px rgba(15, 15, 15, 0.12);
    --shadow-gold: 0 18px 45px -12px var(--gold-glow);

    /* --- Motion --- */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-smooth: cubic-bezier(0.65, 0.05, 0.36, 1);
    --t-fast: 0.25s;
    --t-med: 0.45s;
    --t-slow: 0.8s;
}

/* ============================================================
   1. TYPOGRAPHY & RHYTHM POLISH
   ============================================================ */
body { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

h1, h2, h3 { letter-spacing: -0.015em; }

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

/* Gold gradient text accent */
.text-gradient {
    background: var(--grad-gold);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* Eyebrow / kicker label used above headings */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--gold-deep);
    margin-bottom: 1.1rem;
}
.eyebrow::before {
    content: '';
    width: 34px;
    height: 2px;
    background: var(--grad-gold);
    display: inline-block;
}
.eyebrow.center { justify-content: center; }
.eyebrow.on-dark { color: var(--gold-soft); }

/* ============================================================
   2. SECTION HEADER UPGRADE (shared .section-header)
   ============================================================ */
.section-header h2 { letter-spacing: -0.02em; }
.section-header .underline,
.underline {
    background: var(--grad-gold);
    border-radius: var(--r-pill);
    position: relative;
}

/* ============================================================
   3. BUTTON SYSTEM (refines global .btn + new variants)
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    background: var(--grad-gold);
    background-size: 100% 100%;
    border-radius: var(--r-pill);
    box-shadow: 0 10px 24px -10px var(--gold-glow);
    transition: transform var(--t-fast) var(--ease-out),
                box-shadow var(--t-fast) var(--ease-out),
                background-color var(--t-fast) var(--ease-out);
    will-change: transform;
}
.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-sheen);
    background-size: 220% 100%;
    background-position: 150% 0;
    opacity: 0;
    transition: opacity var(--t-fast) ease;
    pointer-events: none;
}
.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold);
    animation: none; /* override base shimmer keyframe loop */
}
.btn:hover::after {
    opacity: 1;
    animation: btn-sheen 0.9s var(--ease-out);
}
.btn:active { transform: translateY(-1px) scale(0.99); }

@keyframes btn-sheen {
    from { background-position: 150% 0; }
    to   { background-position: -50% 0; }
}

/* Outline / ghost variant */
.btn-outline {
    background: transparent;
    border: 1.5px solid var(--gold);
    color: var(--gold);
    box-shadow: none;
    -webkit-text-fill-color: currentColor;
}
.btn-outline:hover {
    background: var(--gold);
    color: var(--ink);
    box-shadow: var(--shadow-gold);
}
.btn-outline.on-dark { border-color: rgba(255,255,255,0.7); color: #fff; }
.btn-outline.on-dark:hover { background: #fff; color: var(--ink); border-color: #fff; }

/* Small button (used in nav CTA) */
.btn-sm {
    padding: 0.6rem 1.4rem;
    font-size: 0.72rem;
}

/* ============================================================
   4. CARD & SURFACE PRIMITIVES
   ============================================================ */
.surface {
    background: #fff;
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(15, 15, 15, 0.05);
}

.card-glass {
    border-radius: var(--r-lg);
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 20px 50px -20px rgba(0,0,0,0.5);
}

/* Hover lift utility — add to any card */
.hover-lift {
    transition: transform var(--t-med) var(--ease-out),
                box-shadow var(--t-med) var(--ease-out);
    will-change: transform;
}
.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

/* Animated gradient border on hover */
.border-glow {
    position: relative;
    isolation: isolate;
}
.border-glow::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: var(--grad-gold);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--t-med) ease;
    z-index: 2;
    pointer-events: none;
}
.border-glow:hover::before { opacity: 1; }

/* Image zoom-on-hover wrapper */
.img-zoom {
    overflow: hidden;
    border-radius: inherit;
}
.img-zoom img {
    transition: transform 1.1s var(--ease-out);
    display: block;
    width: 100%;
}
.img-zoom:hover img { transform: scale(1.07); }

/* ============================================================
   5. FORM FIELD UPGRADE
   ============================================================ */
input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
select,
textarea {
    transition: border-color var(--t-fast) ease,
                box-shadow var(--t-fast) ease,
                background-color var(--t-fast) ease;
}
input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.16);
}

/* ============================================================
   6. ACCESSIBILITY — focus + reduced motion
   ============================================================ */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
    border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
    [data-aos] { opacity: 1 !important; transform: none !important; }
}

/* ============================================================
   7. REUSABLE SCROLL-REVEAL (CSS fallback / non-AOS pages)
   Element starts hidden; .in-view (or AOS) reveals it.
   ============================================================ */
.reveal-up   { opacity: 0; transform: translateY(40px); transition: opacity var(--t-slow) var(--ease-out), transform var(--t-slow) var(--ease-out); }
.reveal-up.in-view { opacity: 1; transform: none; }

/* Stagger helper for grids: set --i on children */
.stagger > * { transition-delay: calc(var(--i, 0) * 90ms); }

/* ============================================================
   8. AMBIENT MOTION — floating gold orbs / glow accents
   Add a <span class="orb"></span> inside a positioned section.
   ============================================================ */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    background: radial-gradient(circle at 30% 30%, var(--gold-glow), transparent 70%);
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
    animation: orb-float 14s var(--ease-smooth) infinite alternate;
}
.orb.orb-lg { width: 420px; height: 420px; }
.orb.orb-md { width: 260px; height: 260px; }
.orb.orb-slow { animation-duration: 22s; }

@keyframes orb-float {
    from { transform: translate(0, 0) scale(1); }
    to   { transform: translate(40px, -50px) scale(1.15); }
}

/* Soft top/bottom fade between dark & light sections */
.fade-edge-top { -webkit-mask-image: linear-gradient(to bottom, transparent, #000 8%); mask-image: linear-gradient(to bottom, transparent, #000 8%); }

/* ============================================================
   9. HEADER / NAV refinement (glass on scroll feel)
   ============================================================ */
.main-header {
    backdrop-filter: saturate(140%);
    border-bottom: 1px solid rgba(212, 175, 55, 0.12);
}
.nav-bar a { transition: color var(--t-fast) ease; }
.nav-bar > ul > li > a:not(.btn)::after {
    content: '';
    position: absolute;
    left: 0; bottom: 2px;
    width: 0; height: 2px;
    background: var(--grad-gold);
    border-radius: var(--r-pill);
    transition: width var(--t-fast) var(--ease-out);
}
.nav-bar > ul > li > a:not(.btn):hover::after,
.nav-bar > ul > li > a.active:not(.btn)::after { width: 100%; }

@media (max-width: 900px) {
    .nav-bar > ul > li > a:not(.btn)::after { display: none; }
}

/* ============================================================
   10. FLOATING WIDGETS polish
   ============================================================ */
.chat-toggle-btn { transition: transform var(--t-fast) var(--ease-out), box-shadow var(--t-fast) var(--ease-out); }
.chat-toggle-btn:hover { box-shadow: var(--shadow-gold); }

.scroll-top-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.social-icon { transition: width var(--t-fast) var(--ease-out), padding var(--t-fast) var(--ease-out); }

/* Pulsing ring on chat button */
.chat-toggle-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--r-pill);
    box-shadow: 0 0 0 0 var(--gold-glow);
    animation: chat-pulse 2.6s var(--ease-out) infinite;
}
.chat-open .chat-toggle-btn::before { animation: none; }

@keyframes chat-pulse {
    0%   { box-shadow: 0 0 0 0 var(--gold-glow); }
    70%  { box-shadow: 0 0 0 18px rgba(212,175,55,0); }
    100% { box-shadow: 0 0 0 0 rgba(212,175,55,0); }
}

/* ============================================================
   11. SHARED SECTION SCAFFOLD used by redesigned pages
   ============================================================ */
.page-hero {
    position: relative;
    overflow: hidden;
    background: var(--grad-ink);
    color: #fff;
    padding: clamp(6rem, 14vh, 11rem) 0 clamp(4rem, 9vh, 7rem);
    text-align: center;
    isolation: isolate;
}
.page-hero::after {
    /* subtle gold grid/vignette */
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 50% -10%, rgba(212,175,55,0.18), transparent 55%);
    z-index: -1;
}
.page-hero h1 {
    font-size: clamp(2.4rem, 5vw, 4.2rem);
    color: #fff;
    margin: 0 0 1rem;
    line-height: 1.05;
}
.page-hero p {
    color: rgba(255,255,255,0.72);
    max-width: 640px;
    margin: 0 auto;
    font-size: clamp(1rem, 1.4vw, 1.2rem);
    font-weight: 300;
}

.section { padding: clamp(4.5rem, 10vh, 8rem) 0; }
.section.tint { background: var(--cream); }
.section.dark { background: var(--grad-ink); color: #fff; }
.section.dark h2 { color: #fff; }