/* =====================================================
   Responsive Styles — Mobile First
   Breakpoints: 480 (sm) / 768 (md) / 1024 (lg) / 1280 (xl)
   ===================================================== */

/* === BASE (mobile portrait, <480px) === */
/* Mobile values żyją w :root i .section default. Tu tylko adjustments. */
.mobile-menu-toggle { display: flex; }
.header__nav { display: none; }
.header__nav.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 5vh;
    width: 100%;
}
.nav__list {
    flex-direction: column;
    gap: var(--space-2xl);
    text-align: center;
}
.nav__link {
    font-size: var(--fs-2xl);
    color: var(--text-primary);
}

/* === Mobile nav submenu (Portfolio dropdown) === */
/* Na telefonie: brak hovera, brak miejsca na chowane menu. Pokazujemy submenu zawsze
   rozwinięte (YouTube + Reels Instagram pod "Portfolio") — żadnego dodatkowego tapnięcia. */
.nav__item--has-submenu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
}
.nav__item--has-submenu .nav__chevron {
    display: none;
}
.nav__submenu-toggle {
    /* Chevron-toggle nie jest potrzebny — submenu i tak jest widoczne */
    display: none;
}
.nav__submenu {
    position: static;
    transform: none;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    /* Zawsze widoczne — bez animacji rozwijania, bez stanu is-open */
    opacity: 1;
    pointer-events: auto;
    max-height: none;
    overflow: visible;
    padding: var(--space-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transition: none;
}
.nav__submenu::before {
    display: none;
}
/* Stan hover/focus-within na mobile nie ma znaczenia — submenu już widoczne */
.nav__item--has-submenu:hover .nav__submenu,
.nav__item--has-submenu:focus-within .nav__submenu,
.nav__submenu.is-open {
    opacity: 1;
    pointer-events: auto;
    max-height: none;
    padding: var(--space-sm);
    transform: none;
}
.nav__sublink {
    font-size: var(--fs-lg);
    padding: var(--space-md);
}
.nav__sublink small {
    display: none;
}

/* Header mobile menu open (backdrop-filter conflict fix) */
.header.menu-open {
    position: fixed;
    /* iOS Safari <14.5 inset shorthand fallback */
    top: 0; right: 0; bottom: 0; left: 0;
    inset: 0;
    height: 100vh;
    background: var(--bg-primary);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    z-index: var(--z-modal);
}
.header.menu-open .header__container {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto 1fr;
    height: 100%;
    align-items: start;
}
.header.menu-open .header__logo { grid-column: 1; grid-row: 1; align-self: center; }
.header.menu-open .header__actions { grid-column: 2; grid-row: 1; align-self: center; }
.header.menu-open .header__nav.active { grid-column: 1 / -1; grid-row: 2; }
.mobile-menu-toggle.menu-open-toggle { z-index: calc(var(--z-modal) + 1); }

/* Hero mobile */
.hero__buttons { flex-direction: column; width: 100%; max-width: 300px; margin: 0 auto; }
.btn { width: 100%; justify-content: center; }
.hero__stats { flex-direction: column; align-items: center; }
.stat-item { width: 100%; max-width: 280px; }

/* Skills mobile */
.skills-grid { grid-template-columns: 1fr; max-width: 300px; margin: 0 auto; }

/* Contact mobile */
.contact__cards { grid-template-columns: 1fr; max-width: 300px; margin-inline: auto; }

/* Footer mobile */
.footer__links { flex-wrap: wrap; justify-content: center; gap: var(--space-md); }

/* AOS disable na mobile — fallback dla wolniejszych urządzeń */
@media (max-width: 767px) {
    [data-aos] {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}

/* AOS — wyłącz initial transform na tablet/laptop, aby pre-animation translateX nie generował h-overflow.
   Opacity i transition zostawiamy — fade-in nadal działa. */
@media (max-width: 1023px) {
    [data-aos] { transform: none !important; }
}

/* === SM: ≥480px (mobile landscape, small tablets) === */
@media (min-width: 480px) {
    .hero__buttons { flex-direction: row; max-width: none; }
    .btn { width: auto; }
}

/* === MD: ≥768px (tablet portrait) === */
@media (min-width: 768px) {
    /* Desktop nav, hide mobile toggle */
    .mobile-menu-toggle { display: none; }
    .header__nav { display: block; }
    .nav__list { flex-direction: row; gap: var(--space-xl); }
    .nav__link { font-size: var(--fs-sm); color: var(--text-secondary); }

    /* Desktop: reset mobile flex-column z .nav__item--has-submenu */
    .nav__item--has-submenu {
        display: block;
        width: auto;
        gap: 0;
    }
    .nav__submenu-toggle { display: none; }
    .nav__item--has-submenu .nav__chevron { display: inline-block; }

    /* Desktop submenu: przywróć floating dropdown (mobile-first base CSS go zresetował do static) */
    .nav__submenu {
        position: absolute;
        top: calc(100% + var(--space-sm));
        left: 50%;
        transform: translateX(-50%) translateY(-6px);
        width: max-content;
        min-width: 220px;
        max-width: none;
        margin: 0;
        padding: var(--space-sm);
        background: var(--bg-secondary);
        border: 1px solid var(--border-primary);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-lg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        opacity: 0;
        pointer-events: none;
        max-height: none;
        overflow: visible;
    }
    .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);
        max-height: none;
        padding: var(--space-sm);
    }
    .nav__submenu::before { display: block; }
    .nav__sublink { font-size: var(--fs-sm); padding: var(--space-sm) var(--space-md); }
    .nav__sublink small { display: inline; }

    /* Hero stats poziomo */
    .hero__stats { flex-direction: row; }
    .stat-item { width: auto; }

    /* Skills 2 kolumny */
    .skills-grid { grid-template-columns: repeat(2, 1fr); max-width: none; }

    /* Contact 2 kolumny */
    .contact__cards { grid-template-columns: repeat(2, 1fr); max-width: none; }

    /* About grid 2 kolumny */
    .about__grid { grid-template-columns: 1fr 1.2fr; gap: clamp(1.5rem, 4vw, 5rem); }
}

/* === LG: ≥1024px (desktop) === */
@media (min-width: 1024px) {
    .about__grid { gap: var(--space-3xl); }
    .contact__grid { gap: var(--space-3xl); }
}

/* === XL: ≥1280px (large desktop) === */
@media (min-width: 1280px) {
    :root { --container-max: 1320px; }
}

/* === Reduced motion === */
@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-layer { transform: none !important; }
    [data-aos] { opacity: 1 !important; transform: none !important; }
}