:root {
    --brand: #000000;
    /* Header-Hintergrund */
    --brand-2: #1f2937;
    /* Hover/Secondary */
    --text: #e5e7eb;
    /* Header-Text */
    --panel-bg: #0b132b;
    /* Panel-Hintergrund */
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

/* Header */
header {
    position: sticky;
    top: 0;
    background: var(--brand);
    color: var(--text);
    z-index: 50;
    box-shadow: 0 2px 6px rgba(0, 0, 0, .15);
}


.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
}

.brand {
    font-weight: 700;
    letter-spacing: .3px;
    height: 46px;
    width: auto;
}

/* Hamburger Button */
.hamburger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 10px;
    background: transparent;
    cursor: pointer;
}

.hamburger:focus {
    outline: 2px solid rgba(255, 255, 255, .5);
    outline-offset: 2px;
}

.hamburger .bars {
    width: 22px;
    height: 14px;
    position: relative;
}

.hamburger .bars::before,
.hamburger .bars::after,
.hamburger .bar-mid {
    content: "";
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform .25s ease, opacity .25s ease;
}

.hamburger .bars::before {
    top: 0;
}

.hamburger .bar-mid {
    top: 6px;
}

.hamburger .bars::after {
    bottom: 0;
}

/* Animation zu X wenn offen */
.hamburger[aria-expanded="true"] .bars::before {
    transform: translateY(6px) rotate(45deg);
}

.hamburger[aria-expanded="true"] .bar-mid {
    opacity: 0;
}

.hamburger[aria-expanded="true"] .bars::after {
    transform: translateY(-6px) rotate(-45deg);
}

/* Off-Canvas Panel */
.panel-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .35);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease;
}

.panel {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(340px, 85vw);
    background: #000000;
    color: var(--text);
    transform: translateX(100%);
    transition: transform .25s ease;
    box-shadow: -8px 0 20px rgba(0, 0, 0, .35);
    z-index: 60;
    display: flex;
    flex-direction: column;
}

.panel.open {
    transform: translateX(0);
}

.panel-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.panel-title {
    font-weight: 700;
}

.panel-close {
    color: var(--text);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 10px;
    height: 36px;
    padding: 0 12px;
    cursor: pointer;
}

/* Menü */
.menu {
    list-style: none;
    margin: 0;
    padding: 10px 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.menu a {
    display: block;
    text-decoration: none;
    color: var(--text);
    padding: 10px 12px;
    border-radius: 8px;
}

.menu a:hover {
    background: var(--brand-2);
    color: #fff;
}

/* Content */
main {
    padding: 24px 0;
}

footer {
    background: #eef2f7;
    padding: 16px 0;
    color: #475569;
}

#content {
    min-height: 40vh;
}

.loading {
    opacity: .7;
}

.error {
    color: #b91c1c;
    background: #fee2e2;
    padding: 12px;
    border-radius: 8px;
}