/* ================================================
   MOTION & ANIMATIONS
   Premium microinteractions inspired by hen-ry.com
   ================================================ */

/* ─────────────────────────────────────────────
   REDUCED MOTION SUPPORT
   ───────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .parallax {
        transform: none !important;
    }

    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ─────────────────────────────────────────────
   AMBIENT NOISE OVERLAY (Subtle grain)
   ───────────────────────────────────────────── */
.noise-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    animation: grain 8s steps(10) infinite;
}

@keyframes grain {

    0%,
    100% {
        transform: translate(0, 0);
    }

    10% {
        transform: translate(-5%, -10%);
    }

    20% {
        transform: translate(-15%, 5%);
    }

    30% {
        transform: translate(7%, -25%);
    }

    40% {
        transform: translate(-5%, 25%);
    }

    50% {
        transform: translate(-15%, 10%);
    }

    60% {
        transform: translate(15%, 0%);
    }

    70% {
        transform: translate(0%, 15%);
    }

    80% {
        transform: translate(3%, 35%);
    }

    90% {
        transform: translate(-10%, 10%);
    }
}

/* ─────────────────────────────────────────────
   SCROLL REVEAL ANIMATIONS
   ───────────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Staggered reveal for lists */
.reveal-stagger>* {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-stagger.visible>*:nth-child(1) {
    transition-delay: 0ms;
}

.reveal-stagger.visible>*:nth-child(2) {
    transition-delay: 80ms;
}

.reveal-stagger.visible>*:nth-child(3) {
    transition-delay: 160ms;
}

.reveal-stagger.visible>*:nth-child(4) {
    transition-delay: 240ms;
}

.reveal-stagger.visible>*:nth-child(5) {
    transition-delay: 320ms;
}

.reveal-stagger.visible>*:nth-child(6) {
    transition-delay: 400ms;
}

.reveal-stagger.visible>* {
    opacity: 1;
    transform: translateY(0);
}

/* ─────────────────────────────────────────────
   HERO PHOTO COLLAGE
   ───────────────────────────────────────────── */
.hero-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--space-12);
    align-items: center;
}

@media (max-width: 900px) {
    .hero-layout {
        grid-template-columns: 1fr;
    }

    .photo-collage {
        order: -1;
        justify-self: center;
        max-width: 300px;
    }
}

.photo-collage {
    position: relative;
    height: 450px;
    perspective: 1000px;
}

.photo-card {
    position: absolute;
    width: 280px;
    background: white;
    border-radius: var(--radius-md);
    padding: 12px;
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition:
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform;
}

.photo-card img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    display: block;
    filter: grayscale(100%) contrast(1.05);
    transition: filter 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.photo-card:hover img {
    filter: grayscale(100%) contrast(1.1);
}

/* Photo positioning with slight rotations */
.photo-card:nth-child(1) {
    top: 0;
    left: 20px;
    transform: rotate(-3deg);
    z-index: 3;
}

.photo-card:nth-child(2) {
    top: 40px;
    left: 80px;
    transform: rotate(2deg);
    z-index: 2;
}

.photo-card:nth-child(3) {
    top: 80px;
    left: 40px;
    transform: rotate(-1deg);
    z-index: 1;
}

@media (max-width: 900px) {
    .photo-collage {
        height: 380px;
    }

    .photo-card {
        width: 220px;
    }

    .photo-card:nth-child(1) {
        left: 10px;
    }

    .photo-card:nth-child(2) {
        top: 30px;
        left: 50px;
    }

    .photo-card:nth-child(3) {
        top: 60px;
        left: 30px;
    }
}

/* Hover: straighten + lift */
.photo-card:hover {
    transform: rotate(0deg) translateY(-8px) scale(1.02);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.12),
        0 4px 12px rgba(0, 0, 0, 0.06);
    z-index: 10;
}

/* Parallax on scroll */
.photo-card.parallax {
    transition: transform 0.1s linear;
}

/* ─────────────────────────────────────────────
   MAGNETIC CTA BUTTON
   ───────────────────────────────────────────── */
.btn-magnetic {
    position: relative;
    overflow: hidden;
}

.btn-magnetic::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(255, 255, 255, 0.2) 0%,
            rgba(255, 255, 255, 0) 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-magnetic:hover::before {
    opacity: 1;
}

/* ─────────────────────────────────────────────
   ANIMATED LINK UNDERLINES
   ───────────────────────────────────────────── */
.link-animated {
    position: relative;
    display: inline-block;
}

.link-animated::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.link-animated:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ─────────────────────────────────────────────
   ENHANCED CARD HOVER
   ───────────────────────────────────────────── */
.card-interactive {
    transition:
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        border-color 0.3s ease;
}

.card-interactive:hover {
    transform: translateY(-6px);
    box-shadow:
        0 0 0 1px var(--color-accent),
        0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--color-accent);
}

/* ─────────────────────────────────────────────
   NAV ACTIVE INDICATOR
   ───────────────────────────────────────────── */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
    transform: translateX(-50%) scale(0);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link.active::after {
    transform: translateX(-50%) scale(1);
}

/* ─────────────────────────────────────────────
   SECTION BACKGROUND BANDS
   ───────────────────────────────────────────── */
.section-alt {
    background: var(--color-bg-elevated);
    position: relative;
}

.section-alt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
            transparent 0%,
            var(--color-border) 20%,
            var(--color-border) 80%,
            transparent 100%);
}

/* ─────────────────────────────────────────────
   SMOOTH PAGE TRANSITIONS
   ───────────────────────────────────────────── */
.page-enter {
    animation: pageEnter 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─────────────────────────────────────────────
   MOBILE MENU ANIMATION
   ───────────────────────────────────────────── */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 0.3s ease,
        visibility 0.3s ease;
}

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

.mobile-menu a {
    font-size: var(--text-2xl);
    font-weight: 600;
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity 0.3s ease,
        transform 0.3s ease,
        color 0.2s ease;
}

.mobile-menu.open a {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu.open a:nth-child(1) {
    transition-delay: 0.1s;
}

.mobile-menu.open a:nth-child(2) {
    transition-delay: 0.15s;
}

.mobile-menu.open a:nth-child(3) {
    transition-delay: 0.2s;
}

.mobile-menu.open a:nth-child(4) {
    transition-delay: 0.25s;
}

.mobile-menu.open a:nth-child(5) {
    transition-delay: 0.3s;
}

/* Hamburger button */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition:
        transform 0.3s ease,
        opacity 0.3s ease;
}

.menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
}

/* ─────────────────────────────────────────────
   LOADING STATE
   ───────────────────────────────────────────── */
.loading {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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