/**
 * GeneX Authentication Pages Styles
 * 
 * Styles for login, signup, and password reset pages.
 * Split layout: brand panel + form panel.
 * Responsive: stacks on mobile.
 */

/* ============================================
   AUTH LAYOUT
   ============================================ */

.auth-layout {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
}

/* ============================================
   BRAND PANEL (Left Side)
   ============================================ */

.auth-brand {
    flex: 1.2;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: var(--space-10);
    background-color: var(--color-gray-900);
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.auth-brand::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(92, 124, 250, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(252, 196, 25, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(92, 124, 250, 0.2) 0%, transparent 50%);
    animation: auth-gradient-shift 15s ease-in-out infinite alternate;
    z-index: 0;
}

@keyframes auth-gradient-shift {
    0% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(2deg); }
    100% { transform: scale(1) rotate(-1deg); }
}

.auth-brand::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    top: 15%;
    right: -5%;
    animation: auth-shape-float 20s ease-in-out infinite;
    z-index: 0;
}

@keyframes auth-shape-float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(-20px, 30px) rotate(5deg); }
    50% { transform: translate(10px, -20px) rotate(-3deg); }
    75% { transform: translate(-15px, 15px) rotate(2deg); }
}

.auth-brand__content {
    position: relative;
    z-index: 1;
}

.auth-brand__logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-16);
}

.auth-brand__logo-mark {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-accent-500));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--weight-extrabold);
    font-size: var(--text-xl);
    color: #ffffff;
    flex-shrink: 0;
}

.auth-brand__logo-text {
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    letter-spacing: var(--tracking-tight);
}

.auth-brand__headline {
    font-size: var(--text-5xl);
    font-weight: var(--weight-extrabold);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tighter);
    margin-bottom: var(--space-6);
    max-width: 28rem;
}

.auth-brand__headline span {
    background: linear-gradient(135deg, var(--color-primary-300), var(--color-accent-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-brand__description {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.6);
    line-height: var(--leading-relaxed);
    max-width: 24rem;
}

.auth-brand__footer {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.auth-brand__stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.auth-brand__stat-value {
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    color: #ffffff;
}

.auth-brand__stat-label {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
}

.auth-brand__divider {
    width: 1px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
}

/* ============================================
   FORM PANEL (Right Side)
   ============================================ */

.auth-form-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-10);
    background-color: var(--bg-primary);
    position: relative;
}

.auth-form-container {
    width: 100%;
    max-width: 26rem;
}

.auth-form__header {
    margin-bottom: var(--space-10);
}

.auth-form__title {
    font-size: var(--text-3xl);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    letter-spacing: var(--tracking-tight);
}

.auth-form__subtitle {
    font-size: var(--text-base);
    color: var(--text-muted);
    line-height: var(--leading-relaxed);
}

.auth-form__subtitle a {
    color: var(--color-primary-600);
    font-weight: var(--weight-medium);
}

.auth-form__subtitle a:hover {
    color: var(--color-primary-700);
    text-decoration: underline;
}

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

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.auth-form .form-group {
    gap: var(--space-2);
}

.auth-form .form-label {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--text-secondary);
}

.auth-form .form-input {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    border: var(--border-width-2) solid var(--border-default);
    border-radius: var(--radius-lg);
    background-color: var(--bg-input);
    transition: var(--transition-normal);
}

.auth-form .form-input:focus {
    border-color: var(--color-primary-500);
    box-shadow: var(--shadow-focus);
}

.auth-form .form-input--error {
    border-color: var(--color-error-500);
}

.auth-form .form-input--error:focus {
    box-shadow: var(--shadow-error-focus);
}

/* Password field with toggle */
.auth-password-wrapper {
    position: relative;
}

.auth-password-wrapper .form-input {
    padding-right: var(--space-12);
}

.auth-password-toggle {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-password-toggle:hover {
    color: var(--text-secondary);
    background-color: var(--interactive-secondary);
}

.auth-password-toggle svg {
    width: 20px;
    height: 20px;
}

/* Form row */
.auth-form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

/* Forgot password link */
.auth-form__forgot {
    display: flex;
    justify-content: flex-end;
    margin-top: calc(-1 * var(--space-3));
}

.auth-form__forgot a {
    font-size: var(--text-sm);
    color: var(--color-primary-600);
    font-weight: var(--weight-medium);
}

.auth-form__forgot a:hover {
    text-decoration: underline;
}

/* Submit button */
.auth-form__submit {
    margin-top: var(--space-2);
}

.auth-form__submit .btn {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
}

/* Error message */
.auth-form__error {
    display: none;
    padding: var(--space-3) var(--space-4);
    background-color: var(--color-error-50);
    border: var(--border-width) solid var(--color-error-200);
    border-radius: var(--radius-lg);
    color: var(--color-error-700);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
}

[data-theme="dark"] .auth-form__error {
    background-color: rgba(255, 107, 107, 0.1);
    border-color: rgba(255, 107, 107, 0.2);
    color: var(--color-error-300);
}

.auth-form__error.is-visible {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}

.auth-form__error-icon {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 1px;
}

/* Success message */
.auth-form__success {
    display: none;
    padding: var(--space-3) var(--space-4);
    background-color: var(--color-success-50);
    border: var(--border-width) solid var(--color-success-200);
    border-radius: var(--radius-lg);
    color: var(--color-success-700);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
}

[data-theme="dark"] .auth-form__success {
    background-color: rgba(81, 207, 102, 0.1);
    border-color: rgba(81, 207, 102, 0.2);
    color: var(--color-success-300);
}

.auth-form__success.is-visible {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}

/* Divider */
.auth-form__divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-2) 0;
}

.auth-form__divider::before,
.auth-form__divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--border-default);
}

.auth-form__divider span {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
}

/* Footer link */
.auth-form__footer {
    text-align: center;
    margin-top: var(--space-6);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.auth-form__footer a {
    color: var(--color-primary-600);
    font-weight: var(--weight-semibold);
}

.auth-form__footer a:hover {
    text-decoration: underline;
}

/* Mobile brand header */
.auth-mobile-header {
    display: none;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
}

.auth-mobile-header__logo {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-accent-500));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--weight-extrabold);
    font-size: var(--text-base);
    color: #ffffff;
}

.auth-mobile-header__name {
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
}

/* Theme toggle on auth pages */
.auth-theme-toggle {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    z-index: var(--z-raised);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .auth-brand {
        flex: 1;
        padding: var(--space-8);
    }

    .auth-brand__headline {
        font-size: var(--text-4xl);
    }

    .auth-form-panel {
        flex: 1;
        padding: var(--space-8);
    }
}

@media (max-width: 768px) {
    .auth-layout {
        flex-direction: column;
    }

    .auth-brand {
        display: none;
    }

    .auth-mobile-header {
        display: flex;
    }

    .auth-form-panel {
        flex: 1;
        padding: var(--space-6);
        justify-content: flex-start;
        padding-top: var(--space-10);
    }

    .auth-form-container {
        max-width: 100%;
    }

    .auth-form__header {
        margin-bottom: var(--space-8);
    }

    .auth-form__title {
        font-size: var(--text-2xl);
    }

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

    .auth-theme-toggle {
        top: var(--space-4);
        right: var(--space-4);
    }
}

@media (max-width: 380px) {
    .auth-form-panel {
        padding: var(--space-4);
        padding-top: var(--space-8);
    }

    .auth-form {
        gap: var(--space-4);
    }
}