/* =============================================================================
   base.css — reset, typografie, layout utility.
   Používá CSS proměnné z /design-css.php — žádné hardcoded barvy/fonty.
   ============================================================================= */

/* ----- Archivo (self-hosted, variable 100–900, latin + latin-ext) ----- */
@font-face {
    font-family: 'Archivo';
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url('/fonts/Archivo-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: 'Archivo';
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url('/fonts/Archivo-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

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

html {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.55;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main { flex: 1; }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--hover-speed) var(--hover-ease);
}
a:hover { color: var(--color-primary-hover); }

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

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
}

input, textarea, select {
    font-family: inherit;
    font-size: var(--input-size);
    padding: var(--input-padding);
    border: var(--input-border);
    border-radius: var(--input-radius);
    background: var(--input-bg);
    color: inherit;
    width: 100%;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    box-shadow: var(--focus-shadow);
    border-color: var(--color-primary);
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* Tlačítka */
.btn {
    display: inline-block;
    padding: var(--btn-padding);
    font-size: var(--btn-size);
    font-weight: var(--btn-weight);
    border-radius: var(--btn-radius);
    text-align: center;
    border: none;
    transition: background var(--btn-transition), color var(--btn-transition);
}
.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
}
.btn-accent {
    background: var(--color-accent);
    color: #fff;
}
.btn-accent:hover {
    background: var(--color-accent-hover);
    color: #fff;
}
.btn-ghost {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
}
.btn-ghost:hover {
    background: var(--color-bg-alt);
}

/* Typografie utility */
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }

/* Sekce */
.section { padding: 3.5rem 0; }
.section-alt { background: var(--color-bg-alt); }

/* Grid */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* Karty */
.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    box-shadow: var(--card-shadow);
    transition: box-shadow var(--hover-speed) var(--hover-ease);
}
.card:hover {
    box-shadow: var(--img-hover-shadow);
}