/* ═══════════════════════════════════════════════════════
   Glitrex AI — Login Screen
   ═══════════════════════════════════════════════════════ */

.login-screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    min-height: var(--app-height);
    height: var(--app-height);
}

.login-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 600px 400px at 30% 20%, rgba(139, 92, 246, 0.12), transparent),
        radial-gradient(ellipse 500px 350px at 70% 70%, rgba(6, 182, 212, 0.1), transparent),
        radial-gradient(ellipse 400px 300px at 50% 50%, rgba(99, 102, 241, 0.06), transparent),
        var(--bg-primary);
}

.login-card {
    position: relative;
    width: 100%;
    max-width: 420px;
    padding: 48px 40px;
    background: rgba(22, 22, 31, 0.7);
    backdrop-filter: blur(40px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    animation: slideUp var(--duration-slow) var(--ease-out);
}

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 8px;
}

.login-logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 32px;
    text-align: center;
}

.login-input-group {
    margin-bottom: 24px;
}

.login-input-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper input {
    width: 100%;
    padding: 14px 48px 14px 16px;
    background: var(--surface-1);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all var(--duration-fast) ease;
}

.input-wrapper input::placeholder {
    color: var(--text-tertiary);
}

.input-wrapper input:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.input-wrapper .icon-btn {
    position: absolute;
    right: 6px;
}

.login-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px;
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: all var(--duration-normal) ease;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

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

.login-error {
    color: var(--accent-red);
    font-size: 0.85rem;
    margin-top: 16px;
    text-align: center;
    min-height: 20px;
}

@media (max-width: 480px) {
    .login-card {
        margin: 16px;
        padding: 32px 24px;
    }
}