/* ===== Design Tokens ===== */
/* Default: LIGHT */
:root {
    --bg: #f8fafc;
    --header-bg: rgba(255, 255, 255, 0.85);
    --header-text: #0f172a;
    --text: #1e293b;
    --muted: #64748b;

    --hero-grad-a: #3b82f6;
    --hero-grad-b: #2563eb;
    --hero-text: #ffffff;

    --btn-bg: #2563eb;
    --btn-text: #ffffff;

    --card-bg: rgba(255, 255, 255, 0.7);
    --card-text: #0f172a;
    --card-border: rgba(0, 0, 0, 0.05);
    --shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

    --link: #2563eb;
    --link-hover: #1d4ed8;

    --radius: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --glass-blur: blur(16px) saturate(180%);
}

/* Explicit DARK mode */
:root[data-theme="dark"] {
    --bg: #09090b;
    --header-bg: rgba(9, 9, 11, 0.85);
    --header-text: #f8fafc;
    --text: #f1f5f9;
    --muted: #94a3b8;

    --hero-grad-a: #4338ca;
    --hero-grad-b: #3730a3;
    --hero-text: #ffffff;

    --btn-bg: #4f46e5;
    --btn-text: #ffffff;

    --card-bg: rgba(30, 41, 59, 0.4);
    --card-text: #f8fafc;
    --card-border: rgba(255, 255, 255, 0.08);
    --shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 0, 0, 0.2) inset;

    --link: #60a5fa;
    --link-hover: #93c5fd;
}

/* AUTO mode follows system preference */
@media (prefers-color-scheme: dark) {
    :root[data-theme="auto"] {
        --bg: #09090b;
        --header-bg: rgba(9, 9, 11, 0.85);
        --header-text: #f8fafc;
        --text: #f1f5f9;
        --muted: #94a3b8;

        --hero-grad-a: #4338ca;
        --hero-grad-b: #3730a3;
        --hero-text: #ffffff;

        --btn-bg: #4f46e5;
        --btn-text: #ffffff;

        --card-bg: rgba(30, 41, 59, 0.4);
        --card-text: #f8fafc;
        --card-border: rgba(255, 255, 255, 0.08);
        --shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 0, 0, 0.2) inset;

        --link: #60a5fa;
        --link-hover: #93c5fd;
    }
}

/* (Optional) explizit LIGHT, falls du es brauchst:
:root[data-theme="light"] {  // leer, da :root bereits Light ist }
*/


/* ========== Base Reset ========== */
* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--link-hover);
}

/* ========== Header (Premium Glassmorphism) ========== */
.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--header-bg);
    color: var(--header-text);
    padding: 12px 40px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--card-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
    transition: all var(--transition);
}

.site-header .logo-link {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--header-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.primary-nav ul {
    list-style: none;
    display: flex;
    gap: 6px;
    margin: 0;
    padding: 0;
    align-items: center;
}

.primary-nav a,
.dropdown-toggle {
    color: var(--header-text);
    padding: 10px 16px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    opacity: 0.7;
    display: flex;
    align-items: center;
    gap: 6px;
}

.primary-nav a:hover,
.dropdown-toggle:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.05);
    transform: translateY(-1px);
}

:root[data-theme="dark"] .primary-nav a:hover,
:root[data-theme="dark"] .dropdown-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
}

.primary-nav a.active {
    opacity: 1;
    color: var(--btn-bg);
    background: rgba(37, 99, 235, 0.1);
}

:root[data-theme="dark"] .primary-nav a.active {
    background: rgba(79, 70, 229, 0.2);
}

/* Dropdown Menu */
.dropdown {
    position: relative;
    list-style: none;
}

.dropdown-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    min-width: 240px;
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 8px;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px) scale(0.95);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1100;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.dropdown-menu li a {
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 0.9rem;
    color: var(--text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    opacity: 0.9 !important;
    /* Override general a:hover */
}

.dropdown-menu li a:hover {
    background: var(--btn-bg);
    color: #fff !important;
    opacity: 1 !important;
    transform: translateX(4px);
}

.dropdown-toggle .caret {
    font-size: 0.7rem;
    transition: transform 0.3s;
}

.dropdown:hover .dropdown-toggle .caret {
    transform: rotate(180deg);
}

/* Theme Button im Header */
.theme-btn {
    border: 1px solid rgba(255, 255, 255, .18);
    background: transparent;
    color: var(--header-text);
    padding: 8px 12px;
    border-radius: 10px;
    display: inline-flex;
    gap: 8px;
    cursor: pointer;
    transition: filter var(--transition), background var(--transition), border-color var(--transition);
}

.theme-btn:hover {
    filter: brightness(1.05)
}

.theme-icon {
    line-height: 1
}

/* ========== Hero (Polished) ========== */
.hero {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--hero-grad-a), var(--hero-grad-b));
    color: var(--hero-text);
    position: relative;
    overflow: hidden;
}

/* Optional: Adding a subtle glow effect to the hero */
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.hero h1 {
    font-size: 3rem;
    margin: 0 0 16px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.hero p {
    font-size: 1.25rem;
    margin: 0 0 32px;
    opacity: 0.9;
    font-weight: 400;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn.cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 999px;
    background: var(--btn-bg);
    color: var(--btn-text);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    transition: all var(--transition);
    cursor: pointer;
}

.btn.cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    filter: brightness(1.1);
}

.btn.cta:active {
    transform: translateY(0);
}

/* ========== Cards (Polished) ========== */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: var(--card-bg);
    color: var(--card-text);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    text-align: center;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.15);
}

:root[data-theme="dark"] .card:hover {
    box-shadow: 0 16px 40px -10px rgba(0, 0, 0, 0.7);
}

.card h2 {
    margin: 0 0 12px;
    font-size: 1.5rem;
    font-weight: 700;
}

.card p {
    margin: 0 0 20px;
    color: var(--muted);
    line-height: 1.5;
}

.card-link {
    display: inline-block;
    padding: 10px 20px;
    background: var(--hero-grad-a);
    color: #fff;
    border-radius: 999px;
    font-weight: 600;
    transition: all var(--transition);
    text-decoration: none;
}

.card-link:hover {
    filter: brightness(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* ========== Footer (altes Layout) ========== */
footer {
    text-align: center;
    padding: 20px;
    color: var(--muted);
}

/* ========== Small polish ========== */
html,
body,
.card,
.site-header {
    transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition)
}

/* ===== Dropdown (Header) – polished ===== */
/* Header-Links vertikal zentrieren */
.site-header nav ul {
    list-style: none;
    display: flex;
    gap: 14px;
    margin: 0;
    padding: 0;
    align-items: center;
    /* NEU */
}

.site-header nav li {
    display: flex;
    align-items: center;
}

/* NEU */

/* Dropdown – ohne padding-top, dafür Hover-Bridge als ::after */
.site-header nav .dropdown {
    position: relative;
    /* padding-top: 8px;  ENTFERNT */
}

.site-header nav .dropdown::after {
    /* NEU: unsichtbare Hover-Bridge */
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 8px;
}

.site-header nav .dropdown-toggle .caret {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--header-text);
    opacity: .9;
    transform: translateY(1px);
}

.site-header nav a:focus-visible,
.site-header nav .dropdown-toggle:focus-visible,
.site-header nav .dropdown-menu a:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 2px;
    border-radius: 8px;
}


/* Toggle wie gehabt */
.site-header nav .dropdown-toggle {
    border: 1px solid rgba(255, 255, 255, .18);
    background: rgba(255, 255, 255, .06);
    color: var(--header-text);
    padding: 8px 12px;
    border-radius: 10px;
    cursor: pointer;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: filter var(--transition), background var(--transition), border-color var(--transition);
}

/* Menü bleibt gleich */
.site-header nav .dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    min-width: 220px;
    background: var(--card-bg);
    color: var(--card-text);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 8px;
    opacity: 0;
    transform: translateY(6px);
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
    z-index: 50;
}

.site-header nav .dropdown.open .dropdown-menu,
.site-header nav .dropdown:hover .dropdown-menu,
.site-header nav .dropdown:focus-within .dropdown-menu {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* Items */
.site-header nav .dropdown-menu a {
    display: block;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--card-text);
    white-space: nowrap;
}

.site-header nav .dropdown-menu a:hover {
    background: rgba(0, 0, 0, .06);
}

:root[data-theme="dark"] .site-header nav .dropdown-menu a:hover {
    background: rgba(255, 255, 255, .08);
}

/* etwas engerer Abstand zwischen den Header-Links */
.site-header nav ul {
    gap: 14px;
}

/* ===== Neue Navbar ===== */
/* Logo-Link */
.logo-link {
    color: var(--header-text);
    text-decoration: none;
}

.logo-link:hover {
    opacity: 1;
}

/* Burger Button default: hidden on desktop */
.nav-toggle {
    display: none;
    border: 1px solid rgba(255, 255, 255, .18);
    background: rgba(255, 255, 255, .06);
    color: var(--header-text);
    padding: 8px 12px;
    border-radius: 10px;
    cursor: pointer;
}

/* Active Link (optional) */
.site-header nav a.active {
    text-decoration: underline;
    text-underline-offset: 6px;
}

/* --- Mobile Layout --- */
@media (max-width: 820px) {
    .site-header {
        gap: 12px;
    }

    .nav-toggle {
        display: inline-flex;
        align-items: center;
    }

    /* Nav als Drawer */
    .primary-nav {
        position: fixed;
        top: 64px;
        /* ggf. Headerhöhe anpassen */
        left: 0;
        right: 0;
        background: var(--header-bg);
        padding: 14px 16px;
        transform: translateY(-16px);
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition), transform var(--transition);
        z-index: 60;
    }

    .primary-nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .site-header nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .site-header nav li {
        display: block;
    }

    .site-header nav a,
    .site-header nav .dropdown-toggle {
        width: 100%;
        justify-content: space-between;
    }

    /* Dropdown im mobilen Menü: Menü relativ */
    .site-header nav .dropdown-menu {
        position: relative;
        top: 0;
        right: 0;
        margin-top: 8px;
        display: none;
        opacity: 1;
        transform: none;
        pointer-events: auto;
    }

    .site-header nav .dropdown.open .dropdown-menu {
        display: block;
    }
}