/* =============================================
   VitaTrack — Login Page Styles
   ============================================= */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
}

/* Animated Background */
.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 20% 50%, rgba(52, 211, 153, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(96, 165, 250, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(251, 191, 36, 0.04) 0%, transparent 50%);
    animation: bgFloat 20s ease-in-out infinite;
    z-index: 0;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(1deg); }
    66% { transform: translate(-20px, 20px) rotate(-1deg); }
}

/* Floating Particles */
.login-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.login-particles .particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-400);
    border-radius: 50%;
    opacity: 0.3;
    animation: float linear infinite;
}

@keyframes float {
    from { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.3; }
    90% { opacity: 0.3; }
    to { transform: translateY(-10vh) rotate(720deg); opacity: 0; }
}

/* Login Container */
.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 480px;
    animation: fadeInUp 0.6s ease-out;
}

/* Logo Section */
.login-logo {
    text-align: center;
    margin-bottom: var(--space-md);
}

.login-logo .logo-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-400), var(--secondary-400));
    border-radius: var(--radius-xl);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    box-shadow: 0 8px 32px rgba(52, 211, 153, 0.2);
    animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% { box-shadow: 0 8px 32px rgba(52, 211, 153, 0.2); }
    50% { box-shadow: 0 8px 40px rgba(52, 211, 153, 0.35); }
}

.login-logo h1 {
    font-size: var(--text-2xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-300), var(--secondary-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-logo .tagline {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    margin-top: var(--space-xs);
}

/* Login Card */
.login-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: var(--shadow-lg);
}

.login-card .section-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-xs);
    border-bottom: 1px solid var(--border-subtle);
}

.login-card .form-group {
    margin-bottom: var(--space-sm);
}

/* Role Toggle */
.role-toggle {
    margin-bottom: var(--space-sm);
}

.role-toggle .toggle-switch {
    width: 100%;
    height: 48px;
}

/* Form Row (2 columns) */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

/* Disclaimer */
.login-disclaimer {
    margin-top: var(--space-md);
    padding: var(--space-sm);
    background: rgba(251, 191, 36, 0.05);
    border: 1px solid rgba(251, 191, 36, 0.15);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-align: center;
    line-height: 1.5;
}

.login-disclaimer strong {
    color: var(--accent-400);
}

/* Footer */
.login-footer {
    text-align: center;
    margin-top: var(--space-md);
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: var(--space-lg);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .login-logo .logo-icon {
        width: 56px;
        height: 56px;
        font-size: 1.5rem;
    }
}

@media (max-height: 750px) {
    .login-logo {
        margin-bottom: var(--space-xs);
    }
    .login-logo .logo-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
        margin-bottom: 0;
    }
    .login-card {
        padding: var(--space-md);
    }
    .login-page {
        padding: var(--space-sm);
    }
}