/* ==========================================================================
   style.css
   Wspólny arkusz stylów dla całej aplikacji "Zdjęcia z imprezy".
   Podejście: mobile first, białe tło, kolor przewodni #ff4fa3,
   delikatne cienie, zaokrąglone rogi, duże odstępy.
   Czysty CSS3 - bez żadnych frameworków (Bootstrap/Tailwind itp.).
   ========================================================================== */

/* --------------------------------------------------------------------
   1. Zmienne globalne (CSS custom properties)
   -------------------------------------------------------------------- */
:root {
    --color-accent: #ff4fa3;
    --color-accent-dark: #e63d90;
    --color-accent-light: #ffe3f1;
    --color-bg: #ffffff;
    --color-bg-soft: #fafafa;
    --color-text: #1c1c1e;
    --color-text-light: #7a7a7e;
    --color-border: #f0f0f2;
    --color-success: #22c55e;
    --color-error: #ef4444;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;

    --shadow-soft: 0 4px 16px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.10);

    --space-xs: 0.5rem;
    --space-sm: 0.85rem;
    --space-md: 1.25rem;
    --space-lg: 2rem;
    --space-xl: 3rem;

    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
}

/* --------------------------------------------------------------------
   2. Reset i podstawy
   -------------------------------------------------------------------- */
* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
    line-height: 1.5;
    min-height: 100vh;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
}

/* Ukrywanie elementów (np. natywnych inputów plikowych) */
.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden {
    display: none !important;
}

/* --------------------------------------------------------------------
   3. Nagłówek strony
   -------------------------------------------------------------------- */
.site-header {
    text-align: center;
    padding: var(--space-lg) var(--space-md) var(--space-md);
}

.site-header__title {
    margin: 0;
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

@media (min-width: 600px) {
    .site-header__title {
        font-size: 2.1rem;
    }
}

/* --------------------------------------------------------------------
   4. Główny kontener strony
   -------------------------------------------------------------------- */
.page {
    max-width: 640px;
    margin: 0 auto;
    padding: 0 var(--space-md) var(--space-xl);
}

.page--wide {
    max-width: 1200px;
}

.page__heading {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: var(--space-md) 0 var(--space-xs);
}

.page__description {
    text-align: center;
    color: var(--color-text-light);
    font-size: 1rem;
    margin: 0 0 var(--space-lg);
}

/* --------------------------------------------------------------------
   5. Przyciski
   -------------------------------------------------------------------- */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    min-height: 60px;
    padding: 0.9rem 1.5rem;
    font-size: 1.05rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    box-shadow: var(--shadow-soft);
    transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn:active {
    transform: scale(0.97);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background-color: var(--color-accent);
    color: #ffffff;
    box-shadow: 0 8px 20px rgba(255, 79, 163, 0.35);
}

.btn-primary:hover {
    background-color: var(--color-accent-dark);
}

.btn-secondary {
    background-color: var(--color-accent-light);
    color: var(--color-accent-dark);
}

.btn-outline {
    background-color: #ffffff;
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

.btn-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

@media (min-width: 480px) {
    .btn-row {
        flex-direction: row;
    }
}

/* --------------------------------------------------------------------
   6. Siatka miniatur (strona /zdjecia/)
   -------------------------------------------------------------------- */
.thumb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.thumb {
    position: relative;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    background-color: var(--color-bg-soft);
    animation: thumb-in 0.25s ease;
}

.thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumb__remove {
    position: absolute;
    top: 6px;
    right: 6px;
    display: flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.72rem;
    font-weight: 700;
    color: #ffffff;
    background-color: rgba(0, 0, 0, 0.55);
    border: none;
    border-radius: 999px;
    cursor: pointer;
    backdrop-filter: blur(2px);
}

@keyframes thumb-in {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* --------------------------------------------------------------------
   7. Pasek postępu wysyłania
   -------------------------------------------------------------------- */
.progress-section {
    text-align: center;
    padding: var(--space-lg) 0;
}

.progress-track {
    width: 100%;
    height: 16px;
    background-color: var(--color-bg-soft);
    border-radius: 999px;
    overflow: hidden;
    box-shadow: inset 0 0 0 1px var(--color-border);
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
    border-radius: 999px;
    transition: width 0.2s ease;
}

.progress-percent {
    margin-top: var(--space-xs);
    font-weight: 700;
    color: var(--color-accent-dark);
}

.progress-label {
    margin-top: 0.25rem;
    color: var(--color-text-light);
}

.progress-label--error {
    color: var(--color-error);
    font-weight: 600;
}

/* --------------------------------------------------------------------
   8. Ekran sukcesu
   -------------------------------------------------------------------- */
.success-section {
    text-align: center;
    padding: var(--space-lg) 0;
}

.success-section__icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-xs);
}

.success-section__text {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

/* --------------------------------------------------------------------
   9. Galeria (/galeria/)
   -------------------------------------------------------------------- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
    padding: 0 var(--space-sm);
}

@media (min-width: 600px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.85rem;
        padding: 0 var(--space-md);
    }
}

@media (min-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }
}

.gallery-item {
    position: relative;
    display: block;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    background-color: var(--color-bg-soft);
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.2s ease;
}

.gallery-item:active img {
    transform: scale(0.96);
}

.gallery-item--new {
    animation: gallery-item-in 0.4s ease;
}

@keyframes gallery-item-in {
    from {
        opacity: 0;
        transform: scale(0.85);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.gallery-empty {
    text-align: center;
    color: var(--color-text-light);
    padding: var(--space-xl) var(--space-md);
    font-size: 1.05rem;
}

/* --------------------------------------------------------------------
   10. Lightbox pełnoekranowy
   -------------------------------------------------------------------- */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.94);
    touch-action: none;
    animation: lightbox-fade 0.15s ease;
}

@keyframes lightbox-fade {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.lightbox__img {
    max-width: 92vw;
    max-height: 88vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    user-select: none;
    -webkit-user-drag: none;
}

.lightbox__close {
    position: absolute;
    top: max(16px, env(safe-area-inset-top));
    right: 16px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

.lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

.lightbox__nav--prev {
    left: 12px;
}

.lightbox__nav--next {
    right: 12px;
}

.lightbox__counter {
    position: absolute;
    bottom: max(16px, env(safe-area-inset-bottom));
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    font-weight: 600;
}

/* --------------------------------------------------------------------
   11. Strona startowa
   -------------------------------------------------------------------- */
.home-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

/* --------------------------------------------------------------------
   12. Stopka
   -------------------------------------------------------------------- */
.site-footer {
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.85rem;
    padding: var(--space-lg) var(--space-md);
}