/* ===========================================
   AUTH PAGES - Full Screen Login/Register
   State of the Art, No Distraction
   =========================================== */

.auth-page {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
}

@media (max-width: 1024px) {
    .auth-container {
        grid-template-columns: 1fr;
    }
}

/* ===========================================
   LEFT SIDE - BRAND
   =========================================== */

.auth-brand {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl);
    position: relative;
    overflow: hidden;
}

.auth-brand::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.02"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>') repeat;
    opacity: 0.4;
}

@media (max-width: 1024px) {
    .auth-brand {
        display: none;
    }
}

.auth-brand-content {
    position: relative;
    z-index: 1;
    max-width: 500px;
}

.auth-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-decoration: none;
    color: white;
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    margin-bottom: var(--space-3xl);
    transition: var(--transition);
}

.auth-logo:hover {
    opacity: 0.9;
    transform: translateX(-4px);
}

.auth-brand h1 {
    font-size: 2.5rem;
    font-weight: var(--font-bold);
    color: white;
    line-height: 1.2;
    margin-bottom: var(--space-xl);
    letter-spacing: -0.02em;
}

.auth-brand p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
    margin-bottom: var(--space-3xl);
}

.auth-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.auth-feature {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    color: rgba(255, 255, 255, 0.9);
    font-weight: var(--font-medium);
}

.auth-feature svg {
    flex-shrink: 0;
    color: var(--accent-light);
}

/* ===========================================
   RIGHT SIDE - FORM
   =========================================== */

.auth-form-container {
    background: var(--paper-white);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl) var(--space-xl);
}

@media (max-width: 768px) {
    .auth-form-container {
        padding: var(--space-2xl) var(--space-lg);
    }
}

.auth-form-wrapper {
    width: 100%;
    max-width: 440px;
}

.auth-form-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.auth-form-header h2 {
    font-size: 2rem;
    font-weight: var(--font-bold);
    color: var(--primary);
    margin-bottom: var(--space-sm);
}

.auth-form-header p {
    font-size: 1rem;
    color: var(--secondary);
    margin: 0;
}

/* ===========================================
   FORM ELEMENTS
   =========================================== */

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-group label {
    font-size: 0.9375rem;
    font-weight: var(--font-semibold);
    color: var(--primary);
}

.form-input {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
    font-family: var(--font-sans);
    color: var(--primary);
    background: white;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(31, 166, 160, 0.1);
}

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

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"]:checked {
    accent-color: var(--accent);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ===========================================
   ALERTS
   =========================================== */

.alert {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: var(--font-medium);
    margin-bottom: var(--space-xl);
}

.alert svg {
    flex-shrink: 0;
}

.alert-error {
    background: var(--error-light);
    color: var(--error);
    border: 1px solid var(--error);
}

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

.alert-info {
    background: var(--info-light);
    color: var(--info);
    border: 1px solid var(--info);
}

/* ===========================================
   LINKS
   =========================================== */

.link-primary {
    color: var(--accent);
    text-decoration: none;
    font-weight: var(--font-semibold);
    transition: var(--transition);
}

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

.link-secondary {
    color: var(--secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: var(--transition);
}

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

/* ===========================================
   FOOTER & BACK LINK
   =========================================== */

.auth-footer {
    text-align: center;
    padding-top: var(--space-2xl);
    margin-top: var(--space-2xl);
    border-top: 1px solid var(--gray-200);
}

.auth-footer p {
    color: var(--secondary);
    margin: 0;
}

.auth-back {
    text-align: center;
    margin-top: var(--space-xl);
}

.auth-back a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

/* ===========================================
   REGISTER PAGE SPECIFIC
   =========================================== */

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-group-full {
    grid-column: 1 / -1;
}

/* ===========================================
   LOADING STATE
   =========================================== */

.btn-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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