/* =========================================================================
   Temel: sıfırlama + element varsayılanları
   ========================================================================= */

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

* { margin: 0; }

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + var(--sp-4));
}

@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;
    }
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    line-height: var(--leading-tight);
    font-weight: 650;
    letter-spacing: -0.011em;
    text-wrap: balance;
}

h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); }
h4 { font-size: var(--text-md); }

p { text-wrap: pretty; }

a {
    color: var(--link);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--link-hover); }

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

button, input, select, textarea {
    font: inherit;
    color: inherit;
}

button { cursor: pointer; background: none; border: none; }

ul, ol { list-style: none; padding: 0; }

table { border-collapse: collapse; width: 100%; }

hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: var(--sp-6) 0;
}

code, kbd, samp { font-family: var(--font-mono); font-size: 0.9em; }

:focus-visible {
    outline: 2px solid var(--brand-500);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

::selection {
    background: color-mix(in srgb, var(--brand-500) 25%, transparent);
}

/* Ekran okuyucu için görünmez, klavyeyle erişilebilir */
.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: var(--sp-4);
    z-index: 1000;
    background: var(--brand-600);
    color: var(--text-onbrand);
    padding: var(--sp-3) var(--sp-5);
    border-radius: 0 0 var(--radius) var(--radius);
    transition: top var(--transition);
}
.skip-link:focus { top: 0; color: var(--text-onbrand); }