.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    background: var(--bg-main);
}

/* Subtle Ambient Shapes for Depth without Visual Strain */
.login-container::before,
.login-container::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    z-index: 0;
    opacity: 0.45;
}

.login-container::before {
    width: 400px;
    height: 400px;
    background: #d1fae5;
    top: -120px;
    left: -100px;
}

.login-container::after {
    width: 450px;
    height: 450px;
    background: #a7f3d0;
    bottom: -150px;
    right: -120px;
}

/* Login Card - Off-White Enterprise Surface */
.login-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 2.5rem 2.25rem;
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.brand-header {
    text-align: center;
    margin-bottom: 2rem;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.brand-logo-img {
    max-width: 160px;
    max-height: 120px;
    height: auto;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.04));
    transition: transform 0.3s ease;
}

.brand-logo-img:hover {
    transform: scale(1.03);
}

.brand-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.025em;
    margin-bottom: 0.35rem;
}

.brand-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Alert Notification */
.alert {
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    line-height: 1.4;
}

.alert-error {
    background-color: var(--error-bg);
    color: var(--error);
    border: 1px solid rgba(220, 38, 38, 0.2);
}

.alert-success {
    background-color: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--primary-border);
}

.d-none {
    display: none !important;
}

/* Form Controls */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

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

.input-icon {
    position: absolute;
    left: 1rem;
    color: #9ca3af;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-main);
    background-color: var(--surface-subtle);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    outline: none;
    transition: all 0.2s ease;
}

.form-input:focus {
    background-color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
}

.toggle-password {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
}

.toggle-password:hover {
    color: var(--text-main);
}

/* Submit Button */
.btn-submit {
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 0.975rem;
    font-weight: 600;
    font-family: inherit;
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary) 0%, #047857 100%);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    box-shadow: 0 4px 12px var(--primary-glow);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.btn-submit:hover:not(:disabled) {
    background: linear-gradient(135deg, #047857 0%, #065f46 100%);
    box-shadow: 0 6px 16px var(--primary-glow);
}

.btn-submit:active:not(:disabled) {
    transform: translateY(0);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Spinner */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.footer-credits {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}