:root {
    --bg: #000;
    --panel: #0a0a0a;
    --accent: #FF5722;
    --border: #222;
    --text: #fff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background: var(--bg);
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-image: radial-gradient(circle at center, #111 0%, #000 100%);
}

.login-card {
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 48px;
    border-radius: 16px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
}

.logo {
    font-family: 'Rajdhani', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
}

.logo span {
    color: var(--accent);
}

.subtitle {
    text-align: center;
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #aaa;
    font-size: 0.85rem;
}

input {
    width: 100%;
    background: #000;
    border: 1px solid #333;
    color: #fff;
    padding: 14px 16px;
    border-radius: 8px;
    outline: none;
    transition: 0.3s;
    font-size: 1rem;
}

input:focus {
    border-color: var(--accent);
}

.btn-submit {
    width: 100%;
    background: var(--accent);
    color: #000;
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: 0.3s;
    margin-top: 10px;
}

.btn-submit:hover {
    background: #ff7043;
    transform: translateY(-1px);
}

.error {
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid rgba(255, 68, 68, 0.3);
    color: #ff4444;
    padding: 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 20px;
    text-align: center;
}

.success {
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.3);
    color: #4ade80;
    padding: 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 20px;
    text-align: center;
}

.link {
    text-align: center;
    margin-top: 24px;
    font-size: 0.85rem;
    color: #666;
}

.link a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}
/* =========================================
   MOBILNÍ ZOBRAZENÍ PRO LOGIN A REGISTER
   ========================================= */
@media (max-width: 480px) {
    body {
        padding: 20px; /* Zabrání přilepení karty ke kraji displeje */
    }
    .login-card {
        padding: 32px 24px; /* Zmenšíme obrovské vnitřní odsazení na mobilech */
    }
    .logo {
        font-size: 1.6rem; /* Trochu zmenšíme logo */
    }
}