/* ========================================
   AUTH PAGES - SHARED STYLES
   Modern UI/UX - Apple-inspired with ATSK brand
   Uses main design system tokens from _design-tokens.css
   ======================================== */

/* ----------------------------------------
   AUTH PAGE CONTAINER
   ---------------------------------------- */
.auth-page {
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    background:
        radial-gradient(1200px 820px at 8% -10%, rgba(26, 124, 202, 0.14), transparent 58%),
        radial-gradient(900px 680px at 105% 0%, rgba(59, 130, 246, 0.12), transparent 54%),
        radial-gradient(900px 720px at 72% 110%, rgba(16, 185, 129, 0.10), transparent 62%),
        var(--gradient-page);
    font-family: var(--font-family-base);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* ----------------------------------------
   AUTH SHELL (Centered Single-Card Layout)
   ---------------------------------------- */
.auth-shell {
    width: 100%;
    max-width: 460px;
    padding: var(--space-10) var(--space-5);
}

/* ----------------------------------------
   AUTH LOGO (above card title)
   ---------------------------------------- */
.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
}

.auth-logo svg {
    width: 48px;
    height: auto;
    color: var(--color-primary);
}

/* ----------------------------------------
   FORM PANEL
   ---------------------------------------- */
.auth-form-panel {
    width: 100%;
    padding: 0;
    display: flex;
    align-items: center;
}

/* ----------------------------------------
   AUTH CARD - Glassmorphism style
   ---------------------------------------- */
.auth-card {
    width: 100%;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-3xl);
    padding: var(--space-10) var(--space-8);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.auth-card-header {
    margin-bottom: var(--space-6);
    text-align: center;
}

.auth-title {
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-3xl);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-display);
    color: var(--color-text-primary);
    margin: 0 0 6px 0;
    text-align: center;
}

.auth-subtitle {
    font-weight: var(--font-weight-normal);
    font-size: 14px;
    line-height: var(--line-height-normal);
    color: var(--color-text-muted);
    margin: 0;
}

.auth-description {
    font-weight: var(--font-weight-normal);
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin: 0;
    text-align: center;
}

/* ----------------------------------------
   FORM STYLES
   ---------------------------------------- */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.auth-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

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

.auth-form-row > .auth-form-group {
    flex: 1 1 0;
    min-width: 0;
}

/* Labels */
.auth-label {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: 2px;
}

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

.auth-input-wrapper .auth-input {
    padding-right: 3rem;
}

.auth-input-toggle {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

.auth-input-toggle:hover {
    color: var(--color-text-secondary);
}

.auth-input-toggle:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

/* Inputs */
.auth-input {
    appearance: none;
    -webkit-appearance: none;
    background-color: var(--color-bg-secondary);
    border: 1.5px solid transparent;
    border-radius: var(--radius-lg);
    padding: 0 16px;
    height: 50px;
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    width: 100%;
    box-sizing: border-box;
    outline: none;
    transition: border-color var(--transition-fast),
                box-shadow var(--transition-fast),
                background-color var(--transition-fast);
}

.auth-input::placeholder {
    color: var(--color-text-light);
}

.auth-input:hover:not(:focus):not(:disabled) {
    background-color: var(--color-bg-tertiary);
}

.auth-input:focus {
    outline: none;
    border-color: var(--color-border-focus);
    background-color: var(--color-bg-primary);
    box-shadow: var(--shadow-focus);
}

.auth-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

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

/* Autofill Styling */
.auth-input:-webkit-autofill,
.auth-input:-webkit-autofill:focus {
    background-color: var(--color-bg-secondary) !important;
    border: 1.5px solid transparent !important;
    box-shadow: 0 0 0px 1000px var(--color-bg-secondary) inset !important;
    -webkit-text-fill-color: var(--color-text-primary) !important;
}

/* Validation Messages */
.auth-validation-message {
    color: var(--color-error);
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    margin-top: 4px;
}

/* Hint Text */
.auth-hint {
    color: var(--color-text-muted);
    font-size: 12px;
    line-height: 1.4;
    margin-top: 4px;
}

/* ----------------------------------------
   CHECKBOX STYLES
   ---------------------------------------- */
.auth-checkbox-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* Override both .auth-checkbox and Bootstrap's auto-added .form-check-input */
input[type="checkbox"].auth-checkbox,
.form-check-input.auth-checkbox {
    --bs-form-check-bg: var(--color-bg-primary);
    --bs-form-check-bg-image: none;
    appearance: none !important;
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    width: 18px !important;
    height: 18px !important;
    min-width: 18px !important;
    max-width: 18px !important;
    min-height: 18px !important;
    max-height: 18px !important;
    border: 1.5px solid var(--color-border-secondary) !important;
    border-radius: 5px !important;
    background-color: var(--color-bg-primary) !important;
    background-image: none !important;
    cursor: pointer;
    flex-shrink: 0;
    margin: 0 !important;
    padding: 0 !important;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 0 !important;
    transition: all var(--transition-fast);
    position: relative;
    vertical-align: middle;
    outline: none !important;
    box-shadow: none !important;
    filter: none !important;
}

input[type="checkbox"].auth-checkbox:checked,
.form-check-input.auth-checkbox:checked {
    --bs-form-check-bg-image: none;
    background-color: var(--color-primary-dark) !important;
    border-color: var(--color-primary-dark) !important;
    border-width: 1.5px !important;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 6L5 8.5L9.5 3.5' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") !important;
    background-size: 12px !important;
}

/* Kill the global Inputs.css ::before pseudo-element (checkbox_checked.svg) */
input[type="checkbox"].auth-checkbox::before,
input[type="checkbox"].auth-checkbox:checked::before {
    content: none !important;
    display: none !important;
}

input[type="checkbox"].auth-checkbox:hover:not(:checked):not(:disabled),
.form-check-input.auth-checkbox:hover:not(:checked):not(:disabled) {
    border-color: var(--color-text-muted) !important;
}

input[type="checkbox"].auth-checkbox:hover:checked:not(:disabled),
.form-check-input.auth-checkbox:hover:checked:not(:disabled) {
    background-color: var(--color-primary-active) !important;
    border-color: var(--color-primary-active) !important;
}

input[type="checkbox"].auth-checkbox:focus,
input[type="checkbox"].auth-checkbox:focus-visible,
.form-check-input.auth-checkbox:focus,
.form-check-input.auth-checkbox:focus-visible {
    outline: none !important;
    box-shadow: var(--shadow-focus) !important;
    border-color: var(--color-border-secondary) !important;
}

input[type="checkbox"].auth-checkbox:active:not(:disabled),
.form-check-input.auth-checkbox:active:not(:disabled) {
    transform: scale(0.93);
    filter: none !important;
}

input[type="checkbox"].auth-checkbox:disabled,
.form-check-input.auth-checkbox:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.auth-checkbox-label {
    font-size: 14px;
    line-height: 1.4;
    color: var(--color-text-primary);
    cursor: pointer;
    user-select: none;
    margin: 0;
    padding: 0;
}

.auth-checkbox-label a {
    color: var(--color-primary-dark);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    transition: opacity var(--transition-fast);
}

.auth-checkbox-label a:hover {
    opacity: 0.75;
    text-decoration: underline;
}

/* ----------------------------------------
   BUTTON STYLES
   ---------------------------------------- */
.auth-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: var(--color-primary-dark);
    color: var(--color-text-inverse);
    border: none;
    border-radius: var(--radius-lg);
    height: 50px;
    padding: 0 24px;
    font-family: inherit;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    line-height: 1;
    cursor: pointer;
    text-decoration: none;
    transition: background-color var(--transition-fast),
                box-shadow var(--transition-fast),
                transform var(--transition-fast);
    box-sizing: border-box;
}

.auth-btn:hover:not(:disabled) {
    background-color: var(--color-primary-active);
    transform: translateY(-1px);
    box-shadow: var(--shadow-primary);
}

.auth-btn:active:not(:disabled) {
    background-color: var(--color-primary-active);
    transform: translateY(0);
}

.auth-btn:focus-visible {
    outline: none;
    box-shadow: var(--shadow-focus);
}

.auth-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.auth-btn-lg {
    height: 52px;
    padding: 0 28px;
    font-size: var(--font-size-md);
}

.auth-btn-block {
    width: 100%;
}

/* Outline Button */
.auth-btn-outline {
    background-color: transparent;
    color: var(--color-primary-dark);
    border: 1.5px solid var(--color-border-primary);
}

.auth-btn-outline:hover:not(:disabled) {
    background-color: var(--color-info-light);
    border-color: var(--color-primary-dark);
    box-shadow: none;
    transform: none;
}

/* Spinner inside button */
.auth-btn .spinner-border {
    width: 1rem;
    height: 1rem;
    border-width: 0.15rem;
}

/* ----------------------------------------
   ALERT STYLES
   ---------------------------------------- */
.auth-alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

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

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

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

/* ----------------------------------------
   LINKS SECTION
   ---------------------------------------- */
.auth-links {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px 16px;
    margin-top: 20px;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.auth-link {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: var(--color-primary-dark);
    text-decoration: none;
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    transition: opacity var(--transition-fast);
    width: fit-content;
}

.auth-link:hover {
    opacity: 0.7;
    text-decoration: underline;
}

.auth-link:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

/* ----------------------------------------
   DIVIDER
   ---------------------------------------- */
.auth-divider {
    width: 100%;
    height: 1px;
    background-color: var(--color-border-light);
    border: none;
    margin: 24px 0;
}

/* ----------------------------------------
   SECONDARY SECTION (inline style)
   ---------------------------------------- */
.auth-secondary-section {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.auth-secondary-section a {
    color: var(--color-primary-dark);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.auth-secondary-section a:hover {
    opacity: 0.7;
    text-decoration: underline;
}

/* ----------------------------------------
   RETURN/BACK LINK
   ---------------------------------------- */
.auth-return {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    margin-top: var(--space-8);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.auth-return-link {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-dark);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.auth-return-link:hover {
    opacity: 0.7;
    text-decoration: underline;
}

/* ----------------------------------------
   GDPR/INFO BOX
   ---------------------------------------- */
.auth-info-box {
    display: flex;
    gap: 0.75rem;
    padding: 14px 16px;
    background-color: var(--color-info-light);
    border: 1px solid var(--color-info-border);
    border-radius: var(--radius-md);
    margin: var(--space-4) 0;
}

.auth-info-box-icon {
    flex-shrink: 0;
    color: var(--color-primary-dark);
    margin-top: 0.125rem;
}

.auth-info-box-content {
    font-size: 12px;
    line-height: var(--line-height-normal);
    color: var(--color-text-secondary);
}

.auth-info-box-content strong {
    display: block;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 3px;
    color: var(--color-text-primary);
}

.auth-info-box-content p {
    margin: 0;
    color: var(--color-text-secondary);
}

.auth-info-box-content a {
    color: var(--color-primary-dark);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
}

.auth-info-box-content a:hover {
    text-decoration: underline;
}

/* ----------------------------------------
   CONSENT SECTION
   ---------------------------------------- */
.auth-consent-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: var(--space-4) 0;
}

.auth-consent-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.auth-consent-optional {
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border-light);
    margin-top: var(--space-1);
}

.auth-consent-optional .auth-checkbox-label {
    color: var(--color-text-muted);
}

.auth-required-note {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: var(--space-2) 0;
}

/* ----------------------------------------
   LEGAL LINKS FOOTER
   ---------------------------------------- */
.auth-legal-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    font-size: var(--font-size-xs);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-light);
}

.auth-legal-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.auth-legal-links a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.auth-legal-separator {
    color: var(--color-border-primary);
}

/* ----------------------------------------
   SUCCESS STATE
   ---------------------------------------- */
.auth-success-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-6) 0;
}

.auth-success-icon {
    margin-bottom: var(--space-6);
    color: var(--color-emerald);
}

.auth-success-state .auth-title {
    text-align: center;
    margin-bottom: var(--space-4);
}

.auth-success-message {
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    margin: 0 0 var(--space-2) 0;
}

.auth-success-info {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: var(--color-text-muted);
    margin: 0 0 var(--space-6) 0;
}

.auth-success-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
    max-width: 280px;
}

.auth-resend-message {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: var(--color-emerald);
    margin: var(--space-4) 0 0 0;
}

/* ----------------------------------------
   RESPONSIVE DESIGN
   Apple 2026 mobile-first approach
   ---------------------------------------- */

/* Tablet portrait (<=767.98px) - Show mobile header */
@media (max-width: 767.98px) {
    .auth-page {
        justify-content: flex-start;
        background: var(--color-bg-primary);
        padding-top: 64px;
        padding-bottom: env(safe-area-inset-bottom);
    }

    .auth-shell {
        max-width: 100%;
        padding: 24px 16px;
    }

    .auth-form-panel {
        padding: 0;
        max-width: 100%;
    }

    .auth-card {
        padding: 28px 20px;
        border-radius: var(--radius-2xl);
        box-shadow: none;
        background: var(--color-bg-primary);
        border: 1px solid var(--color-border-light);
    }

    .auth-title {
        font-size: 26px;
        margin-bottom: 4px;
    }

    .auth-subtitle,
    .auth-description {
        text-align: center;
    }

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

    .auth-form {
        gap: 20px;
    }

    .auth-form-group {
        gap: 7px;
    }

    .auth-label {
        font-size: 14px;
    }

    .auth-input {
        height: 52px;
        font-size: 16px; /* Prevents iOS zoom on focus */
        border-radius: var(--radius-lg);
    }

    .auth-btn {
        height: 52px;
        font-size: 16px;
        border-radius: var(--radius-lg);
    }

    .auth-btn-lg {
        height: 54px;
        font-size: 17px;
    }

    .auth-form-row {
        flex-direction: column;
        gap: 20px;
    }

    .auth-checkbox-label {
        font-size: 15px;
    }

    .auth-links {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        margin-top: 24px;
    }

    .auth-link {
        font-size: 15px;
    }

    .auth-divider {
        margin: 20px 0;
    }

    .auth-secondary-section {
        text-align: center;
        font-size: 15px;
    }

    .auth-return {
        font-size: 15px;
        margin-top: var(--space-8);
    }

    .auth-info-box {
        padding: 16px;
    }

    .auth-info-box-content {
        font-size: var(--font-size-sm);
    }

    .auth-hint {
        font-size: var(--font-size-sm);
    }

    /* Consent section spacing */
    .auth-consent-section {
        gap: 1rem;
    }

    .auth-checkbox-group {
        gap: 12px;
    }

    /* Legal links */
    .auth-legal-links {
        font-size: 12px;
    }
}

/* Mobile (<=575.98px) */
@media (max-width: 575.98px) {
    .auth-shell {
        padding: 20px 14px;
    }

    .auth-card {
        padding: 24px 18px;
    }
}

/* Small mobile (<=400px) */
@media (max-width: 400px) {
    .auth-shell {
        padding: 16px 12px;
    }

    .auth-card {
        padding: 20px 16px;
    }

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

    /* Legal links stack vertically */
    .auth-legal-links {
        flex-direction: column;
        align-items: center;
        gap: 0.375rem;
    }

    .auth-legal-separator {
        display: none;
    }

    .auth-links {
        gap: 10px;
    }
}

/* ----------------------------------------
   AUTH MOBILE HEADER OVERRIDE
   Make mobile header use brand blue instead of dark
   ---------------------------------------- */
@media (max-width: 767.98px) {
    .auth-page > header {
        background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%) !important;
        box-shadow: var(--shadow-sm) !important;
        border-bottom: none !important;
    }
}

/* ----------------------------------------
   SCREEN READER ONLY UTILITY
   ---------------------------------------- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ----------------------------------------
   REDUCED MOTION
   ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .auth-checkbox:active:not(:disabled) {
        transform: none;
    }

    .auth-btn:hover:not(:disabled) {
        transform: none;
    }
}