/**
 * Eco-Mali Exchange Limited - Authentication Styles
 * Professional login and signup page design
 */

/* Auth Page Layout */
.auth-page {
    min-height: 100vh;
    background: linear-gradient(135deg, rgba(27, 94, 32, 0.95), rgba(46, 125, 50, 0.9));
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    font-family: var(--font-primary);
}

.auth-container {
    width: 100%;
    max-width: 480px;
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
}

/* Auth Header */
.auth-header {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-dark));
    color: var(--white);
    padding: var(--spacing-3xl) var(--spacing-2xl) var(--spacing-2xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.auth-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.auth-header > * {
    position: relative;
    z-index: 1;
}

.auth-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--white);
    text-decoration: none;
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    margin-bottom: var(--spacing-lg);
    transition: transform var(--transition-fast);
}

.auth-logo:hover {
    transform: scale(1.05);
}

.auth-logo i {
    font-size: var(--fs-3xl);
}

.auth-title {
    font-size: var(--fs-4xl);
    font-weight: var(--fw-bold);
    margin: 0 0 var(--spacing-sm);
    color: var(--white);
}

.auth-subtitle {
    font-size: var(--fs-base);
    opacity: 0.95;
    margin: 0;
}

/* Auth Forms Wrapper */
.auth-forms-wrapper {
    padding: var(--spacing-3xl) var(--spacing-2xl);
    position: relative;
}

.auth-form {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.auth-form.active {
    display: block;
}

/* Form Groups */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-label .optional {
    font-weight: var(--fw-normal);
    color: var(--gray-500);
    font-size: var(--fs-xs);
}

/* Input Wrapper */
.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--gray-400);
    font-size: var(--fs-base);
    z-index: 1;
    pointer-events: none;
}

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) calc(var(--spacing-xl) + var(--spacing-md));
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: var(--fs-base);
    font-family: var(--font-primary);
    color: var(--gray-900);
    background-color: var(--white);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

.form-input:invalid:not(:placeholder-shown) {
    border-color: var(--error);
}

.form-input:valid:not(:placeholder-shown) {
    border-color: var(--success);
}

.form-input::placeholder {
    color: var(--gray-400);
}

/* Password Toggle */
.password-toggle {
    position: absolute;
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
    z-index: 1;
}

.password-toggle:hover {
    color: var(--primary-green);
}

.password-toggle:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Input Feedback */
.input-feedback {
    font-size: var(--fs-xs);
    margin-top: var(--spacing-xs);
    min-height: 16px;
}

.input-feedback.success {
    color: var(--success);
}

.input-feedback.error {
    color: var(--error);
}

/* Password Strength */
.password-strength {
    margin-top: var(--spacing-sm);
}

.strength-bar {
    width: 100%;
    height: 4px;
    background-color: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.strength-fill {
    height: 100%;
    width: 0%;
    transition: all var(--transition-base);
    border-radius: var(--radius-full);
}

.strength-fill.weak {
    width: 33%;
    background-color: var(--error);
}

.strength-fill.medium {
    width: 66%;
    background-color: var(--warning);
}

.strength-fill.strong {
    width: 100%;
    background-color: var(--success);
}

.strength-text {
    font-size: var(--fs-xs);
    color: var(--gray-600);
}

/* Password Requirements */
.password-requirements {
    list-style: none;
    margin-top: var(--spacing-sm);
    padding: 0;
}

.password-requirements li {
    font-size: var(--fs-xs);
    color: var(--gray-600);
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    transition: color var(--transition-fast);
}

.password-requirements li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: var(--gray-400);
    transition: all var(--transition-fast);
}

.password-requirements li.valid {
    color: var(--success);
}

.password-requirements li.valid::before {
    content: '✓';
    color: var(--success);
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--fs-sm);
    color: var(--gray-700);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-green);
    cursor: pointer;
}

.checkbox-label a {
    color: var(--primary-green);
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.forgot-link {
    font-size: var(--fs-sm);
    color: var(--primary-green);
    text-decoration: none;
    font-weight: var(--fw-medium);
    transition: color var(--transition-fast);
}

.forgot-link:hover {
    color: var(--primary-green-dark);
    text-decoration: underline;
}

/* Form Message */
.form-message {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--fs-sm);
    text-align: center;
    min-height: 20px;
    display: none;
}

.form-message.show {
    display: block;
}

.form-message.success {
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--success);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.form-message.error {
    background-color: rgba(244, 67, 54, 0.1);
    color: var(--error);
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.form-message.info {
    background-color: rgba(33, 150, 243, 0.1);
    color: var(--info);
    border: 1px solid rgba(33, 150, 243, 0.3);
}

/* Auth Button */
.btn-auth {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.btn-auth.btn-primary {
    background-color: var(--primary-green);
    color: var(--white);
}

.btn-auth.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-auth:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-loader {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.btn-auth.loading .btn-text {
    opacity: 0;
}

.btn-auth.loading .btn-loader {
    display: block;
    position: absolute;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: var(--spacing-xl) 0;
    color: var(--gray-500);
    font-size: var(--fs-sm);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--gray-300);
}

.divider span {
    padding: 0 var(--spacing-md);
}

/* Social Auth Buttons */
.social-auth {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.btn-social {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    background-color: var(--white);
    color: var(--gray-700);
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-primary);
}

.btn-social:hover {
    border-color: var(--primary-green);
    background-color: rgba(46, 125, 50, 0.05);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-social i {
    font-size: var(--fs-xl);
}

.btn-google:hover {
    border-color: #DB4437;
    background-color: rgba(219, 68, 55, 0.05);
    color: #DB4437;
}

.btn-facebook:hover {
    border-color: #4267B2;
    background-color: rgba(66, 103, 178, 0.05);
    color: #4267B2;
}

.btn-microsoft:hover {
    border-color: #00A4EF;
    background-color: rgba(0, 164, 239, 0.05);
    color: #00A4EF;
}

/* Auth Switch */
.auth-switch {
    text-align: center;
    font-size: var(--fs-sm);
    color: var(--gray-600);
    margin: 0;
}

.link-button {
    background: none;
    border: none;
    color: var(--primary-green);
    font-weight: var(--fw-semibold);
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
    font-size: inherit;
    font-family: inherit;
    transition: color var(--transition-fast);
}

.link-button:hover {
    color: var(--primary-green-dark);
}

/* Auth Footer */
.auth-footer {
    background-color: var(--gray-50);
    padding: var(--spacing-lg) var(--spacing-2xl);
    text-align: center;
    border-top: 1px solid var(--gray-200);
}

.auth-footer p {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--fs-sm);
    color: var(--gray-600);
}

.auth-footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.auth-footer-links a {
    font-size: var(--fs-xs);
    color: var(--gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.auth-footer-links a:hover {
    color: var(--primary-green);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .auth-page {
        padding: var(--spacing-md);
        background-attachment: scroll;
    }

    .auth-container {
        border-radius: var(--radius-xl);
    }

    .auth-header {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }

    .auth-title {
        font-size: var(--fs-3xl);
    }

    .auth-forms-wrapper {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }

    .social-auth {
        grid-template-columns: 1fr;
    }

    .btn-social {
        flex-direction: row;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .form-options {
        flex-direction: column;
        align-items: flex-start;
    }

    .auth-footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles */
*:focus-visible {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}