/* ==========================================================================
   Beauty Face be Petra — reset, typografie, layout utility
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
}

body {
    position: relative;
    overflow-x: hidden;
    width: 100%;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.7;
    letter-spacing: 0.005em;
    transition: background-color var(--duration-base) ease, color var(--duration-base) ease;
}

body.is-locked {
    position: fixed;
    inset-inline: 0;
    width: 100%;
    overflow: hidden;
}

/* Zrnitost povrchu: odkaz na semišovou texturu z loga */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: var(--grain-opacity);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--duration-fast) ease, opacity var(--duration-fast) ease;
}

ul,
ol {
    list-style: none;
}

button,
input,
textarea,
select {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
}

button {
    cursor: pointer;
}

:focus-visible {
    outline: 2px solid var(--gold-deep);
    outline-offset: 3px;
}

/* Typografická stupnice */
h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    font-weight: 300;
    line-height: 1.1;
    letter-spacing: -0.01em;
}

.display-1 {
    font-size: clamp(2.75rem, 7vw, 5.25rem);
}

.display-2 {
    font-size: clamp(2rem, 4.5vw, 3.25rem);
}

h3 {
    font-size: clamp(1.375rem, 2.2vw, 1.75rem);
}

.lead {
    max-width: 54ch;
    color: var(--text-secondary);
    font-size: clamp(1.0625rem, 1.4vw, 1.1875rem);
    font-weight: 300;
    line-height: 1.75;
}

p {
    max-width: 68ch;
    color: var(--text-secondary);
}

strong {
    color: var(--text-primary);
    font-weight: 500;
}

.eyebrow {
    display: inline-block;
    color: var(--gold-deep);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.section--invert .eyebrow {
    color: var(--gold-on-invert);
}

/* Layout */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
}

.section {
    padding-block: clamp(var(--space-12), 12vw, var(--space-20));
}

.section--tint {
    background-color: var(--bg-secondary);
}

.section--invert {
    background-color: var(--bg-invert);
    color: var(--text-on-invert);
}

.section--invert p,
.section--invert .lead {
    color: var(--text-on-invert);
    opacity: 0.82;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

/* Scroll animace — záměrně bez clip-path: maskované odhalování v některých
   prohlížečích (zoom/DPI škálování) nechalo text trvale nevykreslený */
.reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out);
}

.reveal.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal[data-reveal-delay="1"] { transition-delay: 0.06s; }
.reveal[data-reveal-delay="2"] { transition-delay: 0.12s; }
.reveal[data-reveal-delay="3"] { transition-delay: 0.18s; }
.reveal[data-reveal-delay="4"] { transition-delay: 0.24s; }
.reveal[data-reveal-delay="5"] { transition-delay: 0.30s; }
.reveal[data-reveal-delay="6"] { transition-delay: 0.36s; }

/* Globální vypnutí pohybu */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

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

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