/* ===================================================================
   Animations · Scroll Reveals · Mobile Menu · Decorative Backgrounds
   =================================================================== */

/* --- Scroll Reveal Base --- */
.reveal {
    opacity: 0;
    transform: translate3d(0, 30px, 0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.reveal.revealed {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

/* Direction variants */
.reveal-left {
    opacity: 0;
    transform: translate3d(-40px, 0, 0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.reveal-right {
    opacity: 0;
    transform: translate3d(40px, 0, 0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.reveal-scale {
    opacity: 0;
    transform: scale3d(0.9, 0.9, 1);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.reveal-scale.revealed {
    opacity: 1;
    transform: scale3d(1, 1, 1);
}

/* Stagger delays for child elements */
.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.12s; }
.stagger-3 { transition-delay: 0.2s; }
.stagger-4 { transition-delay: 0.28s; }
.stagger-5 { transition-delay: 0.36s; }
.stagger-6 { transition-delay: 0.44s; }


/* --- Hero Banner Entrance --- */
.hero-banner__content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    animation: hero-entrance 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both;
}

@keyframes hero-entrance {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.hero-banner__title {
    font-family: var(--font-heading);
    font-size: var(--font-size-hero);
    font-weight: 700;
    color: var(--color-charcoal);
    margin-bottom: var(--space-sm);
    text-shadow: 0 2px 8px rgba(255, 255, 255, 0.6);
    animation: text-reveal 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.6s both;
}

.hero-banner__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-charcoal-soft);
    font-weight: 300;
    letter-spacing: 0.06em;
    text-shadow: 0 1px 4px rgba(255, 255, 255, 0.5);
    animation: text-reveal 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.85s both;
}

@keyframes text-reveal {
    from {
        opacity: 0;
        transform: translateY(15px);
        filter: blur(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

/* Hero image slow zoom */
.hero-banner__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 0;
    animation: hero-zoom 25s ease-in-out infinite alternate;
}

@keyframes hero-zoom {
    from { transform: scale(1); }
    to   { transform: scale(1.06); }
}


/* --- Mobile Navigation Animated --- */
@media (max-width: 768px) {
    .site-nav__links {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        padding: var(--space-md) var(--space-lg);
        background: var(--glass-bg-heavy);
        backdrop-filter: blur(var(--glass-blur-lg));
        -webkit-backdrop-filter: blur(var(--glass-blur-lg));
        border-bottom: 1px solid var(--glass-border);
        box-shadow: 0 8px 32px var(--color-shadow-md);

        max-height: 0;
        overflow: hidden;
        padding-top: 0;
        padding-bottom: 0;
        opacity: 0;
        transform: translate3d(0, -8px, 0);
        transition: max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1),
                    opacity 0.3s ease,
                    transform 0.3s ease,
                    padding 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        will-change: transform, opacity, max-height;
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }

    .site-nav__links.open {
        display: flex;
        max-height: 400px;
        opacity: 1;
        transform: translate3d(0, 0, 0);
        padding-top: var(--space-md);
        padding-bottom: var(--space-md);
    }

    /* Stagger nav items */
    .site-nav__links .site-nav__link {
        opacity: 0;
        transform: translate3d(-15px, 0, 0);
        transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    }

    .site-nav__links.open .site-nav__link {
        opacity: 1;
        transform: translateX(0);
    }

    .site-nav__links.open li:nth-child(1) .site-nav__link { transition-delay: 0.06s; }
    .site-nav__links.open li:nth-child(2) .site-nav__link { transition-delay: 0.12s; }
    .site-nav__links.open li:nth-child(3) .site-nav__link { transition-delay: 0.18s; }
    .site-nav__links.open li:nth-child(4) .site-nav__link { transition-delay: 0.24s; }
    .site-nav__links.open li:nth-child(5) .site-nav__link { transition-delay: 0.30s; }
}

/* Mobile toggle icon animation (visibility in header.css) */
.site-nav__toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    color: var(--color-charcoal);
    font-size: 1.25rem;
    transition: transform var(--transition-fast);
}

.site-nav__toggle.active {
    transform: rotate(90deg);
}


/* --- Glass Card Hover Enhancements --- */
.glass-card {
    position: relative;
    overflow: hidden; /* For glint effect */
    display: flex;
    flex-direction: column;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: 0 4px 24px var(--color-shadow);
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
                border-color 0.4s ease;
    will-change: transform, box-shadow;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transform: translateZ(0);
}

/* Glint effect on hover */
.glass-card::after {
    content: "";
    position: absolute;
    top: 0;
    left: -150%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transform: skewX(-20deg);
    transition: none;
    pointer-events: none;
}

.glass-card:hover {
    transform: translate3d(0, -10px, 0) scale3d(1.02, 1.02, 1);
    box-shadow: 0 20px 60px var(--color-shadow-md);
    border-color: rgba(255, 255, 255, 0.6);
}

.glass-card:hover::after {
    animation: glint 0.8s ease forwards;
}

@keyframes glint {
    0% { left: -150%; }
    100% { left: 150%; }
}

.glass-card .btn-outline-glass,
.glass-card .btn-primary-glass {
    opacity: 0.9;
    margin-top: auto;
    transform: translate3d(0, 10px, 0);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.glass-card:hover .btn-outline-glass,
.glass-card:hover .btn-primary-glass {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

/* Animated floating icon for premium feel */
.glass-card:hover .glass-card__icon {
    animation: float 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate3d(0, 0, 0) scale3d(1.1, 1.1, 1); }
    50% { transform: translate3d(0, -8px, 0) scale3d(1.1, 1.1, 1); }
}

.glass-card:hover .btn-outline-glass {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}


/* --- Section Divider Animation --- */
.section-heading__divider {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    margin: var(--space-md) auto;
    border: none;
    transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.section-heading.revealed .section-heading__divider {
    width: 100px;
}


/* --- Footer Column Reveal --- */
.site-footer__grid > div {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-footer__grid.revealed > div {
    opacity: 1;
    transform: translateY(0);
}

.site-footer__grid.revealed > div:nth-child(1) { transition-delay: 0.05s; }
.site-footer__grid.revealed > div:nth-child(2) { transition-delay: 0.15s; }
.site-footer__grid.revealed > div:nth-child(3) { transition-delay: 0.25s; }
.site-footer__grid.revealed > div:nth-child(4) { transition-delay: 0.35s; }

/* Footer bottom slide up */
.site-footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.6s ease 0.5s,
                transform 0.6s ease 0.5s;
}

.site-footer__grid.revealed ~ .site-footer__divider ~ .site-footer__bottom,
.site-footer.revealed .site-footer__bottom {
    opacity: 1;
    transform: translateY(0);
}

/* Footer list items stagger */
.site-footer__list li {
    margin-bottom: var(--space-sm);
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.site-footer__grid.revealed .site-footer__list li {
    opacity: 1;
    transform: translateX(0);
}

.site-footer__grid.revealed .site-footer__list li:nth-child(1) { transition-delay: 0.2s; }
.site-footer__grid.revealed .site-footer__list li:nth-child(2) { transition-delay: 0.28s; }
.site-footer__grid.revealed .site-footer__list li:nth-child(3) { transition-delay: 0.36s; }
.site-footer__grid.revealed .site-footer__list li:nth-child(4) { transition-delay: 0.44s; }

/* Footer contact items stagger */
.site-footer__contact li {
    color: rgba(184, 169, 154, 0.85);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-md);
    line-height: 1.6;
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.site-footer__grid.revealed .site-footer__contact li {
    opacity: 1;
    transform: translateX(0);
}

.site-footer__grid.revealed .site-footer__contact li:nth-child(1) { transition-delay: 0.2s; }
.site-footer__grid.revealed .site-footer__contact li:nth-child(2) { transition-delay: 0.3s; }
.site-footer__grid.revealed .site-footer__contact li:nth-child(3) { transition-delay: 0.4s; }


/* --- Respect Reduced Motion --- */
/* ═══════════════════════════════════════════════════════════════
   Signature Gallery – Premium Entrance + Float
   Each photo enters from a unique scattered direction like
   polaroids thrown onto a table, then settles and levitates.
   ═══════════════════════════════════════════════════════════════ */

/* Hide before reveal */
.signature-gallery__item.reveal-scale {
    opacity: 0;
}

/* ── Entrance keyframes ── */
@keyframes sg-enter-feature {
    0%   { opacity: 0; transform: translate(-52px, 36px) scale(0.82) rotate(-3.2deg);
           filter: blur(10px) saturate(0.15) brightness(1.25); }
    60%  { filter: blur(0) saturate(1.08) brightness(1.04); }
    80%  { transform: translate(5px, -5px) scale(1.025) rotate(0.4deg); }
    100% { opacity: 1; transform: translate(0,0) scale(1) rotate(0deg);
           filter: blur(0) saturate(1) brightness(1); }
}

@keyframes sg-enter-portrait {
    0%   { opacity: 0; transform: translate(32px, -44px) scale(0.83) rotate(3.8deg);
           filter: blur(10px) saturate(0.15) brightness(1.25); }
    60%  { filter: blur(0) saturate(1.08) brightness(1.04); }
    80%  { transform: translate(-4px, 5px) scale(1.03) rotate(-0.5deg); }
    100% { opacity: 1; transform: translate(0,0) scale(1) rotate(0deg);
           filter: blur(0) saturate(1) brightness(1); }
}

@keyframes sg-enter-square {
    0%   { opacity: 0; transform: translate(44px, 44px) scale(0.76) rotate(-2.8deg);
           filter: blur(10px) saturate(0.15) brightness(1.25); }
    60%  { filter: blur(0) saturate(1.08) brightness(1.04); }
    80%  { transform: translate(-5px, -4px) scale(1.035) rotate(0.6deg); }
    100% { opacity: 1; transform: translate(0,0) scale(1) rotate(0deg);
           filter: blur(0) saturate(1) brightness(1); }
}

@keyframes sg-enter-wide {
    0%   { opacity: 0; transform: translate(-24px, 58px) scale(0.84) rotate(2deg);
           filter: blur(10px) saturate(0.15) brightness(1.25); }
    60%  { filter: blur(0) saturate(1.08) brightness(1.04); }
    80%  { transform: translate(4px, -6px) scale(1.02) rotate(-0.4deg); }
    100% { opacity: 1; transform: translate(0,0) scale(1) rotate(0deg);
           filter: blur(0) saturate(1) brightness(1); }
}

@keyframes sg-enter-tall {
    0%   { opacity: 0; transform: translate(52px, 22px) scale(0.81) rotate(3.4deg);
           filter: blur(10px) saturate(0.15) brightness(1.25); }
    60%  { filter: blur(0) saturate(1.08) brightness(1.04); }
    80%  { transform: translate(-5px, 4px) scale(1.025) rotate(-0.5deg); }
    100% { opacity: 1; transform: translate(0,0) scale(1) rotate(0deg);
           filter: blur(0) saturate(1) brightness(1); }
}

/* ── Per-type float keyframes (subtle rotation = more life) ── */
@keyframes sg-float-feature {
    0%, 100% { transform: translateY(0)    rotate(0deg); }
    40%       { transform: translateY(-11px) rotate(-0.6deg); }
    60%       { transform: translateY(-13px) rotate(-0.9deg); }
}

@keyframes sg-float-portrait {
    0%, 100% { transform: translateY(0)    rotate(0deg); }
    40%       { transform: translateY(-9px)  rotate(0.7deg); }
    60%       { transform: translateY(-11px) rotate(1deg); }
}

@keyframes sg-float-square {
    0%, 100% { transform: translateY(0)   rotate(0deg); }
    40%       { transform: translateY(-7px) rotate(-0.5deg); }
    60%       { transform: translateY(-9px) rotate(-0.7deg); }
}

@keyframes sg-float-wide {
    0%, 100% { transform: translateY(0)   rotate(0deg); }
    40%       { transform: translateY(-8px) rotate(0.4deg); }
    60%       { transform: translateY(-10px) rotate(0.6deg); }
}

@keyframes sg-float-tall {
    0%, 100% { transform: translateY(0)    rotate(0deg); }
    40%       { transform: translateY(-10px) rotate(-0.8deg); }
    60%       { transform: translateY(-12px) rotate(-1.1deg); }
}

/* ── Apply when revealed ── */
.signature-gallery__item--feature.reveal-scale.revealed {
    animation:
        sg-enter-feature 0.95s cubic-bezier(0.34, 1.56, 0.64, 1) both,
        sg-float-feature  7s  ease-in-out 1.05s infinite;
}

.signature-gallery__item--portrait.reveal-scale.revealed {
    animation:
        sg-enter-portrait 0.88s cubic-bezier(0.34, 1.56, 0.64, 1) both,
        sg-float-portrait  8s  ease-in-out 1.0s infinite;
}

.signature-gallery__item--square.reveal-scale.revealed {
    animation:
        sg-enter-square 0.82s cubic-bezier(0.34, 1.56, 0.64, 1) both,
        sg-float-square  9s  ease-in-out 0.95s infinite;
}

.signature-gallery__item--wide.reveal-scale.revealed {
    animation:
        sg-enter-wide  1.0s  cubic-bezier(0.34, 1.56, 0.64, 1) both,
        sg-float-wide  8.5s  ease-in-out 1.1s infinite;
}

.signature-gallery__item--tall.reveal-scale.revealed {
    animation:
        sg-enter-tall  0.9s  cubic-bezier(0.34, 1.56, 0.64, 1) both,
        sg-float-tall  7.5s  ease-in-out 1.02s infinite;
}

/* ── Stagger delays for mosaic context ── */
/* Format: entry-delay, float-start-delay */
.signature-gallery__mosaic .stagger-1.reveal-scale.revealed { animation-delay:    0s, 1.05s; }
.signature-gallery__mosaic .stagger-2.reveal-scale.revealed { animation-delay: 0.16s, 1.21s; }
.signature-gallery__mosaic .stagger-3.reveal-scale.revealed { animation-delay: 0.32s, 1.37s; }
.signature-gallery__mosaic .stagger-4.reveal-scale.revealed { animation-delay: 0.48s, 1.53s; }
.signature-gallery__mosaic .stagger-5.reveal-scale.revealed { animation-delay: 0.64s, 1.69s; }

/* --- Respect Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    .reveal,
    .reveal-left,
    .reveal-right,
    .reveal-scale,
    .site-footer__grid > div,
    .site-footer__list li,
    .site-footer__contact li,
    .site-footer__bottom {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }

    .hero-banner__content,
    .hero-banner__title,
    .hero-banner__subtitle {
        animation: none !important;
    }

    .hero-banner__image {
        animation: none !important;
    }

    .site-nav__links,
    .site-nav__links .site-nav__link {
        transition: none !important;
    }

    /* Signature gallery: show instantly, no float */
    .signature-gallery__item.reveal-scale,
    .signature-gallery__item--feature.reveal-scale.revealed,
    .signature-gallery__item--portrait.reveal-scale.revealed,
    .signature-gallery__item--square.reveal-scale.revealed,
    .signature-gallery__item--wide.reveal-scale.revealed,
    .signature-gallery__item--tall.reveal-scale.revealed {
        opacity: 1 !important;
        animation: none !important;
        filter: none !important;
        transform: none !important;
    }
}


/* --- Decorative Background --- */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    right: -30%;
    width: 80vw;
    height: 80vw;
    border-radius: 50%;
    background: radial-gradient(circle, var(--color-rose-soft) 0%, transparent 70%);
    opacity: 0.3;
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    bottom: -40%;
    left: -20%;
    width: 60vw;
    height: 60vw;
    border-radius: 50%;
    background: radial-gradient(circle, var(--color-blush) 0%, transparent 70%);
    opacity: 0.25;
    z-index: -1;
    pointer-events: none;
}