/* =====================================================
   Main Styles - Patryk Grenda Website
   ===================================================== */

/* === Reset & Base === */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-theme), color var(--transition-theme);
    overflow-x: hidden;
}

/* Selection */
::selection {
    background: var(--glow-primary);
    color: var(--text-primary);
}

/* Links */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Lists */
ul, ol {
    list-style: none;
}

/* Buttons */
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* === Container === */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    line-height: 1.2;
}

.section-tag {
    display: inline-block;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    margin-bottom: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
}

.section-title {
    font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
    margin-bottom: var(--space-lg);
}

.section-description {
    font-size: var(--fs-lg);
    color: var(--text-secondary);
    max-width: 600px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

/* === Glass Card === */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    font-weight: var(--fw-medium);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--btn-primary-text);
    border: none;
    box-shadow: 0 4px 20px var(--glow-primary);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--glow-primary);
}

.btn--primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn--primary:hover::before {
    left: 100%;
}

.btn--secondary {
    background: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
    border: 1px solid var(--btn-secondary-border);
}

.btn--secondary:hover {
    background: var(--glass-bg);
    border-color: var(--glow-primary);
}

.btn--full {
    width: 100%;
}

/* === Header === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-md) 0;
    background: var(--header-bg);
    backdrop-filter: blur(var(--header-blur));
    -webkit-backdrop-filter: blur(var(--header-blur));
    border-bottom: 1px solid var(--border-secondary);
    transition: all var(--transition-base);
}

.header.scrolled {
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-md);
}

.header__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    font-family: var(--font-heading);
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    display: flex;
    gap: var(--space-xs);
}

.logo-text {
    color: var(--text-primary);
}

.logo-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav__list {
    display: flex;
    gap: var(--space-xl);
}

.nav__link {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    position: relative;
    padding: var(--space-xs) 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
    color: var(--text-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

/* === Nav submenu (dropdown Portfolio: YouTube + Reels) === */
.nav__item {
    position: relative;
}

.nav__item--has-submenu > .nav__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.nav__chevron {
    transition: transform var(--transition-base);
    opacity: 0.7;
}

.nav__item--has-submenu:hover .nav__chevron,
.nav__item--has-submenu:focus-within .nav__chevron,
.nav__item--has-submenu .nav__link[aria-expanded="true"] .nav__chevron {
    transform: rotate(180deg);
    opacity: 1;
}

/* Mobile-only toggle button — ukryty na desktop */
.nav__submenu-toggle {
    display: none;
    background: transparent;
    border: 0;
    padding: var(--space-xs);
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
}

.nav__submenu-toggle svg {
    transition: transform var(--transition-base);
}

.nav__submenu-toggle[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.nav__submenu {
    position: absolute;
    top: calc(100% + var(--space-sm));
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    width: max-content;
    min-width: 0;
    padding: var(--space-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
    z-index: var(--z-dropdown);
    display: flex;
    flex-direction: column;
    gap: 2px;
    list-style: none;
}

/* Niewidzialny "most" eliminujący przerwę między linkiem a submenu */
.nav__submenu::before {
    content: '';
    position: absolute;
    top: calc(-1 * var(--space-sm) - 4px);
    left: 0;
    right: 0;
    height: calc(var(--space-sm) + 4px);
}

.nav__item--has-submenu:hover .nav__submenu,
.nav__item--has-submenu:focus-within .nav__submenu,
.nav__submenu.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.nav__sublink {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-primary);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), color var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.nav__sublink svg {
    flex-shrink: 0;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.nav__sublink small {
    margin-left: auto;
    font-size: var(--fs-xs);
    font-weight: var(--fw-regular);
    color: var(--text-secondary);
    padding-left: var(--space-md);
}

.nav__sublink:hover,
.nav__sublink:focus-visible,
.nav__sublink[aria-current="location"] {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    outline: none;
}

.nav__sublink:hover svg,
.nav__sublink:focus-visible svg,
.nav__sublink[aria-current="location"] svg {
    color: transparent;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
}

.nav__sublink[aria-current="location"] {
    position: relative;
}

.nav__sublink[aria-current="location"]::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

@media (prefers-reduced-motion: reduce) {
    .nav__submenu,
    .nav__chevron,
    .nav__submenu-toggle svg,
    .nav__sublink,
    .nav__sublink svg {
        transition: none;
    }
}

.header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Theme Toggle */
.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    background: var(--glow-primary);
    border-color: transparent;
}

[data-theme="dark"] .icon-sun {
    display: block;
}

[data-theme="dark"] .icon-moon {
    display: none;
}

[data-theme="light"] .icon-sun {
    display: none;
}

[data-theme="light"] .icon-moon {
    display: block;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 24px;
    padding: 0;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

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

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

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

/* === Hero Section === */
.hero {
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: var(--space-5xl) var(--container-padding) var(--space-3xl);
    overflow: hidden;
}

/* Parallax Background */
.hero__parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.parallax-layer {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
}

.parallax-layer--1 {
    width: clamp(220px, 30vw, 450px);
    height: clamp(220px, 30vw, 450px);
    background: var(--parallax-layer-1);
    top: -10%;
    right: -10%;
}

.parallax-layer--2 {
    width: clamp(180px, 25vw, 380px);
    height: clamp(180px, 25vw, 380px);
    background: var(--parallax-layer-2);
    bottom: 10%;
    left: -15%;
}

.parallax-layer--3 {
    width: clamp(120px, 15vw, 220px);
    height: clamp(120px, 15vw, 220px);
    background: var(--parallax-layer-3);
    top: 40%;
    left: 30%;
}

.hero__content {
    text-align: center;
    max-width: 900px;
    z-index: 1;
}

.hero__subtitle {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-tertiary);
    margin-bottom: var(--space-lg);
}

.hero__title {
    font-size: clamp(var(--fs-3xl), 6vw, var(--fs-6xl));
    font-weight: var(--fw-bold);
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.hero__title .gradient-text {
    display: inline-block;
    filter: drop-shadow(0 0 30px var(--glow-primary));
}

.hero__description {
    font-size: var(--fs-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
}

.hero__buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero Stats */
.hero__stats {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    margin-top: var(--space-3xl);
    flex-wrap: wrap;
}

.stat-item {
    padding: var(--space-lg) var(--space-xl);
    text-align: center;
    min-width: 160px;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: var(--fs-3xl);
    font-weight: var(--fw-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-plus {
    font-family: var(--font-heading);
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    display: block;
    font-size: var(--fs-sm);
    color: var(--text-tertiary);
    margin-top: var(--space-xs);
}

/* Floating Frames */
.hero__floating-frames {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.floating-frame {
    position: absolute;
    width: clamp(100px, 14vw, 180px);
    height: clamp(70px, 9vw, 120px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--border-accent);
    box-shadow: 0 0 40px var(--glow-primary);
}

.floating-frame--1 {
    top: 20%;
    right: 5%;
    transform: rotate(5deg);
}

.floating-frame--2 {
    bottom: 25%;
    left: 5%;
    transform: rotate(-5deg);
}

.frame-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Scroll Indicator */
.hero__scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-tertiary);
    font-size: var(--fs-sm);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* === About Section === */
.about {
    min-height: clamp(600px, 90vh, 900px);
    padding: clamp(3rem, 8vh, 6rem) 0;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    box-sizing: border-box;
}

.about > .container {
    height: 100%;
    display: flex;
    align-items: center;
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(1.5rem, 4vw, 5rem);
    align-items: center;
    width: 100%;
}

.about__image-wrapper {
    position: relative;
    padding: var(--space-lg);
    overflow: visible;
}

.image-placeholder {
    height: clamp(250px, 55vh, 500px);
    max-height: 100%;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    color: var(--text-tertiary);
}

.image-placeholder svg {
    opacity: 0.5;
}

.image-placeholder span {
    font-size: var(--fs-sm);
}

.image-glow {
    position: absolute;
    width: 80%;
    height: 80%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--gradient-primary);
    filter: blur(60px);
    opacity: 0.3;
    z-index: -1;
    border-radius: 50%;
}

.about__text {
    color: var(--text-secondary);
    margin-bottom: clamp(0.5rem, 1.5vh, 1rem);
    font-size: clamp(0.875rem, 2vh, 1.125rem);
    line-height: 1.6;
}

.about__skills {
    margin-top: var(--space-2xl);
}

.skills-title {
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    margin-bottom: var(--space-lg);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.skill-item:hover {
    border-color: var(--glow-primary);
    box-shadow: 0 0 20px var(--glow-primary);
}

.skill-icon {
    color: var(--text-tertiary);
    transition: color var(--transition-base);
}

.skill-item:hover .skill-icon {
    color: var(--text-primary);
}

.skill-item span {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
}

/* === Portfolio Section === */
.portfolio {
    min-height: clamp(700px, 90vh, 1000px);
    padding: clamp(3rem, 8vh, 6rem) 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
}

.portfolio__header {
    text-align: center;
    margin-bottom: clamp(0.75rem, 2vh, 2rem);
}

.portfolio__header .section-description {
    margin: 0 auto;
}

.portfolio__filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: clamp(0.5rem, 1.5vh, 1.5rem);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--glow-primary);
}

.filter-btn.active {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
}

/* ==================================================================
   PORTFOLIO TILES — iOS-bulletproof stack
   ==================================================================
   History: filmów na portfolio nie było widać na iPhone (Safari + Brave),
   działały tylko na Androidzie. Po debugowaniu na realnym iOS 18.6 okazało
   się, że karty miały width=0 mimo prawidłowego grid tracka — udokumentowany
   bug WebKit z `1fr` + aspect-ratio child.
   Iteracja v=29: poprzedni auto-fit z `minmax(min(280px,100%),1fr)` dawał
   niedeterministyczne wyniki na desktopie (czasem 1 kolumna zamiast 3 przy
   szerokim viewport). Przejście na explicit @media breakpointy 640px / 1024px
   eliminuje tę zmienność, ZACHOWUJĄC wszystkie safeguardy iOS.
   Stack (każda warstwa działa niezależnie, jedna pada = kolejna trzyma):
     1. HTML: <img width="1280" height="720"> rezerwuje proporcje od HTML 2.0
     2. CSS: `grid-template-columns: minmax(0, 1fr)` mobile + repeat(2|3,
        minmax(0, 1fr)) w breakpointach — `minmax(0, 1fr)` zamiast bare `1fr`
        blokuje WebKit Safari intrinsic-size collapse
     3. CSS: explicit `height: clamp(180px, 56.25vw, 540px)` na .thumbnail
     4. CSS: `min-width: 0` na .portfolio__item (grid item) — drugi
        safeguard przeciw collapse, niezależny od warstwy 2
     5. CSS: .portfolio__card bez `display: flex` (block layout)
     6. JS:  initThumbnailHeightGuard wymusza wymiary jeśli wszystko padnie
   NIE WRACAJ do `aspect-ratio` ani do `padding-bottom: 56.25%` tricku —
   oba walą się w WebKit w grid/flex children. Sprawdzone empirycznie.
   NIE WRACAJ do `auto-fit` ani do `bare 1fr` w grid-template-columns —
   pierwsze daje niedeterministyczny layout, drugie WebKit grid collapse.
   ================================================================== */
.portfolio__grid {
    display: grid;
    /* Deterministyczna siatka 1/2/3 kolumny przez explicit breakpointy.
       Wcześniej był `repeat(auto-fit, minmax(min(280px, 100%), 1fr))` — sprytny
       ale niedeterministyczny: container-type: inline-size + padding kontenera
       sprawiały że na desktopie czasem layout collapsował do 1 kolumny zamiast
       oczekiwanych 3. Explicit @media (min-width: 640px / 1024px) eliminuje tę
       zmienność. KLUCZ: `minmax(0, 1fr)` zamiast bare `1fr` — bez tego WebKit
       Safari kolapsuje grid track gdy child ma intrinsic sizing (img 1280×720).
       Drugi safeguard: `min-width: 0` na .portfolio__item (linia niżej). */
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(1rem, 2vw, 1.5rem);
    container-type: inline-size;
    container-name: portfolio-grid;
}

@media (min-width: 640px) {
    .portfolio__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
    .portfolio__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@container portfolio-grid (max-width: 600px) {
    .portfolio__info { padding: var(--space-sm); }
    .portfolio__title { font-size: var(--fs-sm); }
}

.portfolio__item {
    transition: opacity var(--transition-base), transform var(--transition-base);
    /* Patrz header bloku PORTFOLIO TILES — `min-width: 0` razem z
       `minmax(0, 1fr)` w gridzie blokuje overflow/collapse w iOS Safari. */
    min-width: 0;
}

.portfolio__item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
    position: absolute;
}

.portfolio__card {
    /* NIE dodawaj `display: flex` ani `height: 100%` — iOS Safari 18.6
       miał bug gdzie flex column child z `width: 100%` w grid trackcie
       liczył się jako 0 width. Block layout omija to całkowicie.
       Single child (.portfolio__thumbnail) ma explicit height z clamp(). */
    overflow: hidden;
    width: 100%;
}

/* Container query container DLA THUMBNAILA, żeby thumbnail mógł użyć `cqi`
   (= 1% szerokości tej karty) do utrzymania ratio 16:9 niezależnie od liczby
   kolumn gridu. Bez tego wysokość była liczona z `vw` — na desktopie
   szeroki viewport + wąska kolumna w siatce 4× = pionowa karta zamiast 16:9.
   @supports na wypadek starych przeglądarek (iOS 13–15, Chrome <105) —
   tam container-type nie jest wspierane, więc i tak nie ma kogo serwować. */
@supports (container-type: inline-size) {
    .portfolio__card { container-type: inline-size; }
}

/* iOS Safari rendering bug: backdrop-filter on a card with border-radius +
   overflow:hidden + child translateZ(0) can make children render blank or
   clipped. The blur is invisible behind a full-cover thumbnail anyway, so
   for portfolio cards we drop the glass blur entirely and just use a solid
   tinted background. This removes an entire class of iOS rendering bugs. */
.portfolio__card.glass-card {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--bg-secondary);
}

/* Wysokość = funkcja SZEROKOŚCI KARTY (nie viewportu) żeby ratio 16:9 było
   poprawne także na desktopie gdzie viewport jest szeroki ale kolumna w
   gridzie (4×) wąska. Layered:
     Layer 1 (fallback, iOS 13–15, Chrome <105 — bez CQ): clamp(vw) — działa
       OK na mobile (kafelek ≈ viewport), na desktopie da wyższe karty ale
       wszystko widoczne i klikalne.
     Layer 2 (modern, iOS 16+, Chrome 105+, FF 110+): clamp(cqi) — precyzyjne
       16:9 oparte na szerokości .portfolio__card (container query inline).
       56.25% szerokości karty = 9/16 — czyste ratio 16:9.
   NIE WRACAJ do `aspect-ratio` ani `padding-bottom: 56.25%` — oba walą się
   w WebKit gdy child jest w grid/flex containerze (sprawdzone empirycznie
   na iOS 18.6). cqi jest bezpieczne — to tylko jednostka długości. */
.portfolio__thumbnail {
    position: relative;
    width: 100%;
    height: clamp(180px, 56.25vw, 540px);
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a2e 0%, #0a0a0f 100%);
    background-image:
        linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(118, 75, 162, 0.15)),
        var(--ytmark-svg);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover, clamp(36px, 8vw, 56px);
}

@supports (height: 1cqi) {
    .portfolio__thumbnail {
        height: clamp(180px, 56.25cqi, 540px);
    }
}

.portfolio__thumbnail img {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: var(--bg-tertiary);
}

/* Vertical reels: 9:16 — analogicznie do horizontal, vw-fallback dla starych
   przeglądarek + cqi-override na modern (precyzyjne 16/9 ratio = 177.78cqi
   wysokości na każde 100cqi szerokości karty). */
.portfolio__thumbnail.thumbnail--vertical {
    width: 100%;
    height: clamp(320px, 60vw, 600px);
}

@supports (height: 1cqi) {
    .portfolio__thumbnail.thumbnail--vertical {
        height: clamp(320px, 177.78cqi, 600px);
    }
}

.thumbnail-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
}

.portfolio__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio__card:hover .portfolio__overlay {
    opacity: 1;
}

/* Touch devices (iOS/Android): no real hover — keep a softened overlay always
   visible so a missing or slow-loading thumbnail still signals "tap to play".
   Reels keep their own overlay rules (.reel-overlay) and aren't affected. */
@media (hover: none) and (pointer: coarse) {
    .portfolio__card .portfolio__overlay:not(.reel-overlay) {
        opacity: 1;
        background: linear-gradient(180deg, rgba(0,0,0,0) 50%, rgba(0,0,0,0.45) 100%);
    }
    .portfolio__card .portfolio__overlay:not(.reel-overlay) .play-btn {
        transform: scale(1);
        opacity: 0.92;
    }
}

.play-btn {
    width: clamp(48px, 6vw, 64px);
    height: clamp(48px, 6vw, 64px);
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transform: scale(0.8);
    transition: transform var(--transition-base);
    box-shadow: 0 0 30px var(--glow-primary);
}

[data-video-id] {
    cursor: pointer;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.portfolio__card:hover .play-btn {
    transform: scale(1);
}

.play-btn svg {
    margin-left: 4px;
}

.portfolio__info {
    padding: clamp(0.5rem, 1vh, 1.5rem);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.portfolio__category {
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    margin-bottom: var(--space-sm);
}

.portfolio__title {
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    margin-bottom: var(--space-xs);
}

.portfolio__description {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
}

/* === Contact Section === */
.contact {
    min-height: auto;
    padding: var(--space-5xl) 0;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    box-sizing: border-box;
}

.contact__content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.contact__cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.contact__card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-2xl) var(--space-xl);
    text-decoration: none;
    transition: all var(--transition-base);
}

.contact__card:hover {
    transform: translateY(-6px);
    border-color: var(--glow-primary);
    box-shadow: 0 0 30px var(--glow-primary);
}

.contact__card-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.contact__card:hover .contact__card-icon {
    border-color: var(--glow-primary);
    box-shadow: 0 0 20px var(--glow-primary);
}

.contact__card-label {
    font-size: var(--fs-sm);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact__card-value {
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
}

.contact__text {
    font-size: var(--fs-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.contact__item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.contact__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.contact__label {
    display: block;
    font-size: var(--fs-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--space-xs);
}

.contact__value {
    font-size: var(--fs-base);
    font-weight: var(--fw-medium);
    color: var(--text-primary);
}

.contact__value:hover {
    color: var(--glow-primary);
}

.social-label {
    display: block;
    font-size: var(--fs-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--space-md);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.social-link:hover {
    color: var(--text-primary);
    border-color: var(--glow-primary);
    box-shadow: 0 0 20px var(--glow-primary);
    transform: translateY(-4px);
}

/* Contact Form */
.contact__form {
    padding: var(--space-2xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.form-input {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    color: var(--input-text);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.form-input::placeholder {
    color: var(--input-placeholder);
}

.form-input:focus {
    outline: none;
    border-color: var(--input-focus-border);
    box-shadow: 0 0 20px var(--glow-primary);
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236b6b80' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-md) center;
    padding-right: var(--space-3xl);
}

.form-textarea {
    resize: none;
    min-height: clamp(60px, 10vh, 120px);
}

/* === Video Modal === */
.video-modal {
    position: fixed;
    /* iOS Safari <14.5 doesn't support `inset` shorthand — provide longhand fallback */
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(16px, 4vw, 32px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.video-modal.active {
    opacity: 1;
    visibility: visible;
}

.video-modal__backdrop {
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
}

.video-modal__content {
    position: relative;
    width: min(100%, 960px);
    max-width: 960px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.video-modal.active .video-modal__content {
    transform: scale(1);
}

.video-modal__wrapper {
    position: relative;
    padding-bottom: 56.25%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 0 60px rgba(0, 0, 0, 0.5);
}

.video-modal__wrapper iframe,
.video-modal__wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    background: #000;
    object-fit: contain;
}

.video-modal__close {
    align-self: flex-end;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.video-modal__close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.video-modal--ios {
    padding: 16px;
}

.video-modal--ios .video-modal__backdrop {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(0, 0, 0, 0.92);
}

.video-modal--ios .video-modal__content {
    transform: none;
}

/* iOS Safari: transform on parent breaks iframe rendering - must override .active specificity */
.video-modal--ios.active .video-modal__content {
    transform: none !important;
}

/* iOS Safari: overflow:hidden + border-radius clips iframe content */
.video-modal--ios .video-modal__wrapper {
    border-radius: 0;
    overflow: visible;
}

/* === Reels: inline video w boxie (miniaturka = pierwsza klatka MP4) === */
.reel-thumb {
    background: #0a0a0f;
}

.reel-video {
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #000;
    display: block;
    border: 0;
}

.reel-card--playing .reel-video {
    object-fit: contain;
    z-index: 2;
}

.reel-card--playing .reel-overlay {
    display: none;
}

.reel-card:not(.reel-card--playing) {
    cursor: pointer;
}

/* === Reels: pozioma karuzela ze scroll-snap (2026 layout, brak obcinania pionowego) === */
.reels-carousel {
    position: relative;
    max-width: var(--container-max);
    margin-inline: auto;
}

.reels-carousel__track {
    display: flex;
    gap: clamp(0.75rem, 1.5vw, 1.25rem);
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    scroll-padding-inline: var(--space-md);
    padding: var(--space-sm) var(--space-xs) var(--space-md);
    scrollbar-width: thin;
    scrollbar-color: rgba(102, 126, 234, 0.5) transparent;
    /* Wygładzanie scrolla na touchpadzie/iOS */
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
}

.reels-carousel__track:focus-visible {
    outline: 2px solid rgba(102, 126, 234, 0.5);
    outline-offset: 4px;
    border-radius: var(--radius-md);
}

.reels-carousel__track::-webkit-scrollbar {
    height: 6px;
}

.reels-carousel__track::-webkit-scrollbar-track {
    background: var(--border-secondary);
    border-radius: var(--radius-full);
}

.reels-carousel__track::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.reels-carousel__track > .portfolio__item {
    /* Mobile-first: nowoczesne telefony 360–430px → ~1.6 kart widoczne (peek następnej) */
    flex: 0 0 min(62vw, 220px);
    scroll-snap-align: start;
}

@media (min-width: 768px) {
    .reels-carousel__track > .portfolio__item {
        /* Tablet/laptop/desktop: karta dostosowana do wysokości viewportu (svh = bez chrome przeglądarki),
           tak aby cała sekcja z headerem i paddingiem mieściła się w polu roboczym z marginesem na dole.
           Formuła: dostępna wysokość po odjęciu paddingu sekcji + headera + karuzeli + scrollbara,
           pomnożona przez 9/16. */
        flex: 0 0 clamp(170px, min(22vw, calc((100svh - 380px) * 9 / 16)), 260px);
    }
}

.reels-carousel__btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    cursor: pointer;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: opacity var(--transition-base), transform var(--transition-base), background var(--transition-base);
}

.reels-carousel__btn--prev {
    left: calc(-1 * var(--space-md));
}

.reels-carousel__btn--next {
    right: calc(-1 * var(--space-md));
}

.reels-carousel__btn:hover:not([disabled]) {
    background: var(--bg-tertiary);
    transform: translateY(-50%) scale(1.08);
}

.reels-carousel__btn:focus-visible {
    outline: 2px solid rgba(102, 126, 234, 0.6);
    outline-offset: 2px;
}

.reels-carousel__btn[disabled] {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-50%) scale(0.85);
}

/* Touch / mobile: brak przycisków — wystarczy swipe */
@media (max-width: 767px) {
    .reels-carousel__btn {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .reels-carousel__track {
        scroll-behavior: auto;
    }
    .reels-carousel__btn {
        transition: none;
    }
}

/* === Reels: sekcja musi mieć naturalną wysokość + kompaktowy padding pod laptopa === */
.portfolio--reels {
    height: auto;
    min-height: auto;
    max-height: none;
    overflow: visible;
    /* Padding sekcji wrażliwy na wysokość viewportu — na laptopach mniej, na desktop więcej */
    padding: clamp(1.5rem, 4svh, 3rem) 0 clamp(2rem, 5svh, 3.5rem);
}

.portfolio--reels > .container {
    max-height: none;
}

.portfolio--reels .portfolio__header {
    /* Kompresja headera tak aby cała sekcja mieściła się w polu roboczym laptopa */
    margin-bottom: clamp(0.75rem, 2svh, 1.75rem);
}

.portfolio--reels .section-title {
    margin-bottom: clamp(0.5rem, 1.2svh, 1rem);
}

.portfolio--reels .section-tag {
    margin-bottom: clamp(0.5rem, 1svh, 1rem);
}

/* === Footer === */
.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    border-top: 1px solid var(--border-secondary);
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--border-secondary);
    margin-bottom: var(--space-xl);
}

.footer__logo {
    font-family: var(--font-heading);
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    display: flex;
    gap: var(--space-xs);
}

.footer__tagline {
    font-size: var(--fs-sm);
    color: var(--text-tertiary);
    margin-top: var(--space-xs);
}

.footer__links {
    display: flex;
    gap: var(--space-xl);
}

.footer__links a {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer__links a:hover {
    color: var(--text-primary);
}

.footer__social {
    display: flex;
    gap: var(--space-sm);
}

.footer__social .social-link {
    width: 40px;
    height: 40px;
}

.footer__bottom {
    text-align: center;
}

.footer__copyright {
    font-size: var(--fs-sm);
    color: var(--text-tertiary);
}