/* ============================================================
   DESIGN TOKENS
============================================================ */
:root {
    --pink-light:  #f9e8f0;
    --pink-mid:    #f0b8d0;
    --pink-rich:   #d4779b;
    --pink-deep:   #b0456e;
    --mauve:       #c8a0c8;
    --cream:       #fdf6f0;
    --ivory:       #faf7f4;
    --dark:        #140a10;
    --dark2:       #1e0f18;
    --font-serif:  'Playfair Display', Georgia, serif;
    --font-alt:    'Cormorant Garamond', Georgia, serif;
    --font-sans:   'Montserrat', sans-serif;
    --ease-out:    cubic-bezier(.22,.68,0,1.2);
    --ease-smooth: cubic-bezier(.4,0,.2,1);
    --transition:  .4s var(--ease-smooth);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    background: var(--dark);
    color: #fff;
    font-family: var(--font-sans);
    overflow-x: hidden;
}

img, video { display: block; max-width: 100%; }

/* ============================================================
   LOCK SCREEN
============================================================ */
.lock-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity .8s var(--ease-smooth), visibility .8s;
}

.lock-screen.unlocking {
    opacity: 0;
    visibility: hidden;
}

.lock-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.lock-particle {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--pink-rich);
    opacity: 0;
    animation: floatUp 6s ease-in-out infinite;
}

@keyframes floatUp {
    0%   { transform: translateY(0) scale(1);   opacity: 0; }
    20%  { opacity: .4; }
    80%  { opacity: .2; }
    100% { transform: translateY(-110vh) scale(.3); opacity: 0; }
}

.lock-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 50px 40px 44px;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(212,119,155,.2);
    border-radius: 28px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 30px 80px rgba(0,0,0,.5), 0 0 60px rgba(212,119,155,.06);
    width: min(400px, 90vw);
}

.lock-heart {
    font-size: 2.8rem;
    color: var(--pink-rich);
    animation: heartbeat 2s ease-in-out infinite;
    line-height: 1;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    30%       { transform: scale(1.18); }
    50%       { transform: scale(1); }
    60%       { transform: scale(1.1); }
}

.lock-hint {
    font-family: var(--font-alt);
    font-size: 1.1rem;
    font-style: italic;
    color: rgba(255,255,255,.55);
    text-align: center;
}

.lock-input-wrap {
    display: flex;
    width: 100%;
    border: 1.5px solid rgba(212,119,155,.35);
    border-radius: 50px;
    overflow: hidden;
    transition: border-color .3s;
}

.lock-input-wrap:focus-within {
    border-color: var(--pink-rich);
    box-shadow: 0 0 0 3px rgba(212,119,155,.15);
}

.lock-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 14px 22px;
    font-family: var(--font-sans);
    font-size: .95rem;
    color: #fff;
    letter-spacing: .08em;
}

.lock-input::placeholder { color: rgba(255,255,255,.3); }

.lock-btn {
    background: linear-gradient(135deg, var(--pink-rich), var(--pink-deep));
    border: none;
    padding: 0 22px;
    cursor: pointer;
    color: #fff;
    font-size: 1.3rem;
    transition: opacity .3s;
}

.lock-btn:hover { opacity: .85; }

.lock-error {
    font-family: var(--font-sans);
    font-size: .8rem;
    color: #f87;
    letter-spacing: .05em;
    min-height: 1em;
    text-align: center;
}

/* ============================================================
   MAIN CONTENT
============================================================ */
.main-content {
    transition: opacity .8s var(--ease-smooth);
}

.main-content.hidden {
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}

/* Hearts canvas */
#hearts-canvas {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

/* ============================================================
   SCROLL ANIMATIONS
============================================================ */
.fade-in, .fade-up {
    opacity: 0;
    transition: opacity .9s var(--ease-smooth) var(--d, 0s),
                transform .9s var(--ease-smooth) var(--d, 0s);
}

.fade-in { transform: none; }
.fade-up  { transform: translateY(40px); }

.fade-in.visible, .fade-up.visible {
    opacity: 1;
    transform: none;
}

/* ============================================================
   HERO
============================================================ */
.section-hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: -10%;
    background-size: cover;
    background-position: center;
    will-change: transform;
}

.hero-veil {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(20,10,16,.55) 0%,
        rgba(20,10,16,.25) 50%,
        rgba(20,10,16,.75) 100%
    );
}

.hero-text {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
}

.hero-eyebrow {
    font-family: var(--font-alt);
    font-style: italic;
    font-size: 1.1rem;
    color: var(--pink-mid);
    letter-spacing: .25em;
    margin-bottom: 16px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.4rem, 7vw, 5.5rem);
    font-weight: 400;
    line-height: 1.15;
    color: #fff;
    text-shadow: 0 4px 40px rgba(0,0,0,.5);
}

.hero-scroll {
    margin-top: 48px;
    display: flex;
    justify-content: center;
}

.hero-scroll span {
    display: block;
    width: 22px;
    height: 36px;
    border: 2px solid rgba(255,255,255,.4);
    border-radius: 20px;
    position: relative;
}

.hero-scroll span::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255,255,255,.6);
    border-radius: 4px;
    animation: scrollDot 1.8s ease-in-out infinite;
}

@keyframes scrollDot {
    0%   { transform: translateX(-50%) translateY(0); opacity: 1; }
    100% { transform: translateX(-50%) translateY(12px); opacity: 0; }
}

/* ============================================================
   GALLERY SECTIONS
============================================================ */
.section-gallery {
    position: relative;
    z-index: 1;
    padding: 100px 0 80px;
    background: var(--cream);
}

/* Fade z tmava do bíla nahoře */
.section-gallery::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 120px;
    background: linear-gradient(to bottom, var(--dark), transparent);
    z-index: 2;
    pointer-events: none;
}

/* Fade z bíla do tmava dole */
.section-gallery::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 120px;
    background: linear-gradient(to top, var(--dark), transparent);
    z-index: 2;
    pointer-events: none;
}

.section-dark {
    background: var(--dark2);
}

.section-kocicky {
    background:
        linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(249,232,240,.92) 34%, rgba(247,223,235,.95) 100%);
}

.section-kocicky::before {
    background: linear-gradient(to bottom, rgba(20,10,16,.78), rgba(20,10,16,0));
}

.section-kocicky::after {
    background: linear-gradient(to top, rgba(20,10,16,.92), rgba(20,10,16,0));
}

.gallery-label {
    text-align: center;
    padding: 0 24px;
    margin-bottom: 60px;
}

.gallery-eyebrow {
    display: block;
    font-family: var(--font-sans);
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: .3em;
    text-transform: uppercase;
    color: var(--pink-rich);
    margin-bottom: 12px;
}

.gallery-title {
    font-family: var(--font-serif);
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 400;
    color: var(--dark);
    line-height: 1;
}

.section-dark .gallery-title {
    color: #fff;
}

.gallery-line {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--pink-rich), var(--mauve));
    margin: 18px auto 0;
    border-radius: 2px;
}

/*  MASONRY GRID  */
.masonry-grid {
    columns: 3;
    column-gap: 14px;
    padding: 0 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.mason-item {
    break-inside: avoid;
    margin-bottom: 14px;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    position: relative;
}

.mason-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, transparent 50%, rgba(212,119,155,.3));
    opacity: 0;
    transition: opacity .4s;
    border-radius: 16px;
}

.mason-item:hover::after { opacity: 1; }

.mason-item img {
    width: 100%;
    display: block;
    transition: transform .7s var(--ease-smooth);
}

.section-kocicky .mason-item {
    box-shadow: 0 14px 40px rgba(176, 69, 110, .12);
}

.mason-item:hover img { transform: scale(1.04); }

.mason-tall { grid-row: span 2; }

@media (max-width: 900px) {
    .masonry-grid { columns: 2; padding: 0 20px; }
}
@media (max-width: 550px) {
    .masonry-grid { columns: 1; padding: 0 16px; }
}

/*  VIDEOS FLOW  */
.videos-flow {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    padding: 0 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.vf-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.vf-card {
    width: 100%;
    aspect-ratio: 9 / 16;
    border-radius: 20px;
    overflow: hidden;
    background: #0a0508;
    box-shadow: 0 12px 40px rgba(0,0,0,.5);
    transition: transform .4s var(--ease-smooth), box-shadow .4s;
}

.vf-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 24px 60px rgba(212,119,155,.25);
}

.vf-card video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vf-date {
    font-family: var(--font-sans);
    font-size: .72rem;
    font-weight: 500;
    color: var(--pink-mid);
    letter-spacing: .07em;
    text-align: center;
}

@media (max-width: 1100px) { .videos-flow { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 750px)  { .videos-flow { grid-template-columns: repeat(2, 1fr); padding: 0 20px; } }
@media (max-width: 480px)  { .videos-flow { grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 0 12px; } }

/* ============================================================
   TRANSITION PANEL
============================================================ */
.transition-panel {
    position: relative;
    height: 380px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.transition-bg {
    position: absolute;
    inset: -10%;
    background-size: cover;
    background-position: center 30%;
    z-index: 0;
}

.transition-veil {
    position: absolute;
    inset: 0;
    background: rgba(14, 6, 18, 0.52);
    z-index: 1;
}

#particleCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.transition-text {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-align: center;
}

.t-line {
    font-family: var(--font-alt);
    font-style: italic;
    font-size: clamp(1.4rem, 4vw, 2.4rem);
    color: rgba(255,255,255,.85);
    letter-spacing: .05em;
}

.t-heart {
    font-size: 3rem;
    color: var(--pink-rich);
    animation: heartbeat 2.2s ease-in-out infinite;
}

/* ============================================================
   CLOSING
============================================================ */
.section-closing {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.closing-bg {
    position: absolute;
    inset: -10%;
    background-size: cover;
    background-position: center top;
    filter: blur(3px);
}

.closing-veil {
    position: absolute;
    inset: 0;
    background: rgba(20,10,16,.7);
}

.closing-text {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
}

.closing-heart {
    font-size: 3.5rem;
    color: var(--pink-rich);
    animation: heartbeat 2s ease-in-out infinite;
    margin-bottom: 20px;
}

.closing-title {
    font-family: var(--font-serif);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 400;
    color: #fff;
    text-shadow: 0 4px 40px rgba(0,0,0,.5);
    margin-bottom: 16px;
}

.closing-sub {
    font-family: var(--font-alt);
    font-style: italic;
    font-size: 1.3rem;
    color: var(--pink-mid);
    letter-spacing: .12em;
}

/* ============================================================
   LIGHTBOX
============================================================ */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 8000;
    background: rgba(10,4,8,.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .35s, visibility .35s;
    backdrop-filter: blur(16px);
}

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

.lb-img-wrap {
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lb-img-wrap img {
    max-width: 90vw;
    max-height: 88vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 80px rgba(0,0,0,.8);
}

.lb-close, .lb-prev, .lb-next {
    position: absolute;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.2);
    color: #fff;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .3s;
    backdrop-filter: blur(8px);
}

.lb-close:hover, .lb-prev:hover, .lb-next:hover {
    background: rgba(212,119,155,.35);
}

.lb-close {
    top: 20px; right: 20px;
    width: 44px; height: 44px;
    font-size: 1.5rem;
}

.lb-prev, .lb-next {
    top: 50%; transform: translateY(-50%);
    width: 48px; height: 48px;
    font-size: 1.2rem;
}

.lb-prev { left: 16px; }
.lb-next { right: 16px; }