/* Glass-style komponenty: boxy bez borderu, karty, tlačítka - vše přes opacity/blur. */

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.brand-muted {
    opacity: 0.6;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-4);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-ghost {
    background: rgba(127, 127, 127, 0.12);
    color: var(--color-text);
    text-decoration: none;
}

.field {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    margin-bottom: var(--space-3);
}

.field-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.field input {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    border: 1px solid rgba(127, 127, 127, 0.25);
    background: rgba(255, 255, 255, 0.6);
}

.field input:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 1px;
}

@media (prefers-color-scheme: dark) {
    .field input {
        background: rgba(0, 0, 0, 0.25);
        border-color: rgba(255, 255, 255, 0.15);
    }
}

/* Přihlašovací stránka */
.auth-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.auth-card {
    width: 100%;
    max-width: 360px;
    padding: var(--space-5);
}

.auth-title {
    margin: 0 0 var(--space-1);
    font-size: 1.8rem;
    font-weight: 700;
}

.auth-subtitle {
    margin: 0 0 var(--space-4);
    color: var(--color-text-muted);
}

.auth-error {
    margin: 0 0 var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    background: rgba(255, 69, 58, 0.12);
    color: var(--color-danger);
    font-size: 0.9rem;
}

.auth-card .btn {
    width: 100%;
    margin-top: var(--space-2);
}

/* Dashboard placeholder */
.app-shell {
    max-width: 960px;
    margin: 0 auto;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
}

.brand {
    font-weight: 700;
    font-size: 1.2rem;
}

.app-header-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.app-main {
    padding: var(--space-4);
}