/* ======================================================
   🔹 Grundlegende Utilities & Animationen
====================================================== */

.hidden {
    display: none !important;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.spinner {
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-top: 3px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

/* ======================================================
   🔹 Theme-Variablen (Light / Dark)
====================================================== */

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --accent: #3498db;
    --border-color: #dee2e6;
    --card-shadow: 0 4px 8px rgba(0,0,0,0.08);
}

[data-theme="dark"] {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --text-primary: #e9ecef;
    --text-secondary: #adb5bd;
    --accent: #66b2ff;
    --border-color: #333;
    --card-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

/* ======================================================
   🔹 Layout & Grundstruktur
====================================================== */

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
    padding: 0 1rem;
    transition: background-color 0.3s ease, color 0.3s ease;
}

header {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

/* ======================================================
   🔹 Animierter Theme Toggle
====================================================== */

.theme-toggle-btn {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
}

.theme-toggle-btn:hover {
    background-color: var(--accent);
    color: #fff;
    transform: scale(1.05);
}

.theme-toggle-btn .icon {
    width: 22px;
    height: 22px;
    stroke-width: 2;
    transition: transform 0.6s ease, opacity 0.4s ease;
}

.moon-icon {
    opacity: 0;
    transform: rotate(-90deg) scale(0.8);
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: rotate(90deg) scale(0.8);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* ======================================================
   🔹 Cards & Content
====================================================== */

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    padding: 1.5rem;
    border-radius: 1rem;
    margin: 1.5rem 0;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.12);
}

/* ======================================================
   🔹 Team Grid
====================================================== */

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.team-member {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.team-member img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 1rem;
    border: 3px solid var(--accent);
    transition: transform 0.3s ease;
}

.team-member:hover img {
    transform: scale(1.05);
}

.team-member h3 {
    margin: 0.5rem 0 0.3rem;
}

.team-member p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.team-member:focus {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

/* ======================================================
   🔹 Wetter-App
====================================================== */

.weather-app {
    margin: 3rem auto;
    max-width: 500px;
    padding: 2rem;
    border-radius: 1rem;
    background-color: var(--bg-secondary);
    box-shadow: var(--card-shadow);
    text-align: center;
}

.weather-app h1 {
    margin-bottom: 1.5rem;
}

.location-input {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.location-input input {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    flex: 1;
    min-width: 180px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.location-input button {
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: 9999px;
    padding: 0.6rem 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.location-input button:hover {
    background-color: #2573b3;
    transform: scale(1.05);
}

.current-weather {
    background-color: var(--bg-primary);
    border-radius: 1rem;
    padding: 1rem;
    box-shadow: var(--card-shadow);
    margin-top: 1rem;
}

.weather-main {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.temperature {
    font-size: 2.5rem;
    font-weight: bold;
}

.weather-details {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ======================================================
   🔹 Wetter-Hintergründe
====================================================== */

body.weather-clear { background: linear-gradient(180deg, #87ceeb, #f0f8ff); }
body.weather-clouds { background: linear-gradient(180deg, #a0a0a0, #e0e0e0); }
body.weather-rain { background: linear-gradient(180deg, #5a7bb5, #9eb6d0); }
body.weather-snow { background: linear-gradient(180deg, #dfe9f3, #ffffff); }
body.weather-default { background: var(--bg-primary); }

/* ======================================================
   🔹 Accessibility
====================================================== */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}