/**
 * FastLink SSO - Common Styles
 * Shared styles across all pages
 */

/* ==========================================================================
   CSS Custom Properties (Variables)
   ========================================================================== */

:root {
    /* Primary Colors */
    --color-primary: #0d6efd;
    --color-primary-dark: #0056d2;
    --color-primary-hover: #0b5ed7;
    --color-primary-rgb: 13, 110, 253;

    /* Status Colors */
    --color-success: #198754;
    --color-success-dark: #218838;
    --color-success-light: #d1e7dd;
    --color-danger: #dc3545;
    --color-danger-dark: #c82333;
    --color-danger-light: #f8d7da;
    --color-warning: #ffc107;
    --color-warning-light: #fff3cd;

    /* Neutral Colors */
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #adb5bd;
    --color-gray-500: #6c757d;
    --color-gray-600: #495057;
    --color-gray-700: #344054;
    --color-gray-800: #212529;
    --color-gray-900: #1a1a2e;

    /* Background Colors */
    --bg-body: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    --bg-card: #ffffff;
    --bg-input: #f8f9fa;
    --bg-primary-gradient: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    --bg-success-gradient: linear-gradient(135deg, #28a745 0%, #218838 100%);
    --bg-info-gradient: linear-gradient(135deg, #e8f4fd 0%, #d6eafc 100%);
    --bg-error-gradient: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    --bg-warning-gradient: linear-gradient(135deg, #fff3cd 0%, #ffeeba 100%);

    /* Shadows */
    --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-card-hover: 0 15px 50px rgba(0, 100, 255, 0.15);
    --shadow-button: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
    --shadow-button-hover: 0 6px 20px rgba(var(--color-primary-rgb), 0.4);
    --shadow-input-focus: 0 0 0 4px rgba(var(--color-primary-rgb), 0.15);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 2.5rem;

    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.85rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.05rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;

    /* Container */
    --container-width: 440px;
    --container-width-lg: 500px;
    --container-padding: 2.5rem 2rem;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

* {
    box-sizing: border-box;
}

body {
    background: var(--bg-body);
    min-height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ==========================================================================
   Accessibility - Focus States
   ========================================================================== */

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Remove default focus outline when :focus-visible is supported */
:focus:not(:focus-visible) {
    outline: none;
}

/* Specific focus styles for form elements */
.form-control:focus-visible,
.btn:focus-visible,
button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ==========================================================================
   Language Switcher
   ========================================================================== */

.lang-switcher {
    position: fixed;
    top: 15px;
    right: 15px;
    z-index: 1000;
}

.lang-switcher button {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--color-gray-300);
    padding: 8px 10px;
    min-width: 44px;
    min-height: 34px;
    margin-left: 8px;
    cursor: pointer;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.lang-switcher button.active {
    background: rgba(255, 255, 255, 1);
    border: 2px solid var(--color-primary);
    box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.3);
}

.lang-switcher button:hover:not(.active) {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.lang-switcher button img {
    width: 24px;
    height: 18px;
    object-fit: cover;
    display: block;
    border-radius: 2px;
}

/* ==========================================================================
   Common Container Styles
   ========================================================================== */

.container-card {
    width: 90%;
    max-width: var(--container-width);
    border-radius: var(--radius-xl);
    border: none;
    background: var(--bg-card);
    padding: var(--container-padding);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.container-card:hover {
    transform: scale(1.01);
    box-shadow: var(--shadow-card-hover);
}

/* Container size variants */
.container-card--lg {
    max-width: var(--container-width-lg);
}

/* ==========================================================================
   Logo Wrapper
   ========================================================================== */

.logo-wrapper {
    text-align: center;
    margin-bottom: 1rem;
}

.logo-wrapper img {
    height: 55px;
    transition: transform 0.3s ease;
}

.container-card:hover .logo-wrapper img,
.login-container:hover .logo-wrapper img,
.logout-container:hover .logo-wrapper img,
.consent-container:hover .logo-wrapper img,
.error-container:hover .logo-wrapper img,
.welcome-container:hover .logo-wrapper img,
.reset-password-container:hover .logo-wrapper img,
.otp-container:hover .logo-wrapper img {
    transform: scale(1.05);
}

/* ==========================================================================
   Page Titles & Descriptions
   ========================================================================== */

.page-title {
    text-align: center;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-2xl);
}

.page-description {
    text-align: center;
    color: var(--color-gray-500);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xl);
}

/* ==========================================================================
   Floating Label Input Group
   ========================================================================== */

.floating-label-group {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.floating-label-group .form-control {
    height: 58px;
    padding: 1.5rem 2.75rem 0.5rem 3rem;
    font-size: var(--font-size-base);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    background-color: var(--bg-input);
    transition: all var(--transition-fast);
}

.floating-label-group .form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-input-focus);
    background-color: var(--bg-card);
}

.floating-label-group .form-control.is-invalid {
    border-color: var(--color-danger);
}

.floating-label-group .form-control.is-invalid:focus {
    box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.15);
}

.floating-label-group .floating-label {
    position: absolute;
    left: 3rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-500);
    font-size: var(--font-size-base);
    font-weight: 500;
    pointer-events: none;
    transition: all var(--transition-fast);
    background: transparent;
    padding: 0 var(--spacing-xs);
}

.floating-label-group .floating-label .required-star {
    color: var(--color-danger);
    margin-left: 2px;
}

/* Label floats up when input is focused or has value */
.floating-label-group .form-control:focus ~ .floating-label,
.floating-label-group .form-control:not(:placeholder-shown) ~ .floating-label,
.floating-label-group .form-control.has-value ~ .floating-label {
    top: 12px;
    transform: translateY(0);
    font-size: var(--font-size-xs);
    color: var(--color-primary);
}

.floating-label-group .form-control.is-invalid:focus ~ .floating-label,
.floating-label-group .form-control.is-invalid:not(:placeholder-shown) ~ .floating-label {
    color: var(--color-danger);
}

.floating-label-group .input-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-500);
    pointer-events: none;
    transition: color var(--transition-fast);
    z-index: 1;
}

.floating-label-group .form-control:focus ~ .input-icon {
    color: var(--color-primary);
}

.floating-label-group .form-control.is-invalid ~ .input-icon {
    color: var(--color-danger);
}

.floating-label-group .toggle-password {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-500);
    cursor: pointer;
    padding: var(--spacing-xs);
    border: none;
    background: none;
    transition: color var(--transition-fast);
    z-index: 1;
}

.floating-label-group .toggle-password:hover {
    color: var(--color-primary);
}

/* ==========================================================================
   Error Messages
   ========================================================================== */

.error-message {
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
    display: none;
}

.error-message::before {
    content: "\26A0  ";
}

.alert-error {
    border-radius: var(--radius-lg);
    border: none;
    background: var(--bg-error-gradient);
    color: #721c24;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    animation: slideDown var(--transition-base);
    font-size: 0.95rem;
}

.alert-error::before {
    content: "\26A0\FE0F  ";
}

/* ==========================================================================
   Custom Checkbox
   ========================================================================== */

.custom-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.custom-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    height: 22px;
    width: 22px;
    background-color: var(--bg-card);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    margin-right: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.custom-checkbox:hover input ~ .checkmark {
    border-color: var(--color-primary);
}

.custom-checkbox input:checked ~ .checkmark {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.checkmark svg {
    width: 14px;
    height: 14px;
    color: white;
    display: none;
}

.custom-checkbox input:checked ~ .checkmark svg {
    display: block;
}

.checkbox-label {
    color: var(--color-gray-600);
    font-size: 0.9rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

/* Shared button base styles */
.btn-base,
.btn-primary-gradient,
.btn-success-gradient,
.btn-secondary-outline {
    padding: 0.875rem 1.5rem;
    font-weight: 600;
    border: none;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.btn-base:disabled,
.btn-primary-gradient:disabled,
.btn-success-gradient:disabled,
.btn-secondary-outline:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-base svg,
.btn-primary-gradient svg,
.btn-success-gradient svg,
.btn-secondary-outline svg {
    margin-right: var(--spacing-sm);
}

.btn-base .spinner-border,
.btn-primary-gradient .spinner-border {
    width: 1.25rem;
    height: 1.25rem;
    border-width: 0.2rem;
    margin-right: var(--spacing-sm);
}

/* Hover lift effect for gradient buttons */
.btn-primary-gradient:hover:not(:disabled),
.btn-success-gradient:hover:not(:disabled) {
    transform: translateY(-2px);
}

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

/* Primary gradient button - specific styles */
.btn-base,
.btn-primary-gradient {
    font-size: var(--font-size-lg);
    border-radius: var(--radius-lg);
}

.btn-primary-gradient {
    background: var(--bg-primary-gradient);
    box-shadow: var(--shadow-button);
    color: white;
}

.btn-primary-gradient:hover:not(:disabled) {
    box-shadow: var(--shadow-button-hover);
}

.btn-primary-gradient:disabled {
    background: var(--color-gray-500);
    box-shadow: none;
}

.btn-base svg,
.btn-primary-gradient svg {
    width: 20px;
    height: 20px;
}

/* Success gradient button - specific styles */
.btn-success-gradient {
    font-size: var(--font-size-base);
    border-radius: var(--radius-md);
    background: var(--bg-success-gradient);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
    color: white;
}

.btn-success-gradient:hover:not(:disabled) {
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

.btn-success-gradient svg {
    width: 18px;
    height: 18px;
}

/* Secondary/Outline button - specific styles */
.btn-secondary-outline {
    font-size: var(--font-size-base);
    border-radius: var(--radius-md);
    background: var(--color-gray-100);
    border: 2px solid var(--color-gray-300);
    color: var(--color-gray-500);
}

.btn-secondary-outline:hover:not(:disabled) {
    background: var(--color-gray-200);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

.btn-secondary-outline svg {
    width: 18px;
    height: 18px;
}

/* Back to Login Link */
.back-to-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-500);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    margin-top: var(--spacing-lg);
    width: 100%;
}

.back-to-login:hover {
    color: var(--color-primary);
}

.back-to-login .back-icon {
    margin-right: var(--spacing-sm);
    transition: transform var(--transition-fast);
}

.back-to-login:hover .back-icon {
    transform: translateX(-3px);
}

/* Home Button - Used on logout, error, and consent pages */
.btn-home {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem var(--spacing-2xl);
    font-weight: 600;
    font-size: var(--font-size-base);
    border-radius: var(--radius-md);
    background: var(--bg-primary-gradient);
    color: white;
    text-decoration: none;
    box-shadow: var(--shadow-button);
    transition: all var(--transition-base);
}

.btn-home:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-button-hover);
    color: white;
    text-decoration: none;
}

.btn-home svg {
    width: 20px;
    height: 20px;
    margin-right: var(--spacing-sm);
}

/* Back Button - Used on error page */
.btn-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: var(--font-size-base);
    border-radius: var(--radius-md);
    background: var(--bg-primary-gradient);
    border: none;
    box-shadow: var(--shadow-button);
    transition: all var(--transition-base);
    color: white;
    text-decoration: none;
}

.btn-back:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-button-hover);
    color: white;
}

.btn-back svg {
    width: 18px;
    height: 18px;
    margin-right: var(--spacing-sm);
}

/* ==========================================================================
   Icon Wrapper - Base Component for circular icon containers
   ========================================================================== */

.icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.icon-wrapper--sm {
    width: 48px;
    height: 48px;
}

.icon-wrapper--md {
    width: 64px;
    height: 64px;
}

.icon-wrapper--lg {
    width: 80px;
    height: 80px;
}

.icon-wrapper--info {
    background: var(--bg-info-gradient);
}

.icon-wrapper--info svg {
    color: var(--color-primary);
}

.icon-wrapper--success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
}

.icon-wrapper--success svg {
    color: var(--color-success);
}

.icon-wrapper--error {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe8e8 100%);
}

.icon-wrapper--error svg {
    color: var(--color-danger);
}

.icon-wrapper--warning {
    background: var(--bg-warning-gradient);
}

.icon-wrapper--warning svg {
    color: #856404;
}

/* Specific icon wrappers - extend base classes with centered margin and animation */
/* Usage: class="icon-wrapper icon-wrapper--lg success-icon-wrapper" */
.success-icon-wrapper,
.info-icon-wrapper,
.error-icon-wrapper {
    margin: 0 auto var(--spacing-xl);
}

.success-icon-wrapper {
    animation: scaleIn 0.5s ease;
}

.info-icon-wrapper {
    animation: scaleIn 0.5s ease;
}

.error-icon-wrapper {
    animation: shake 0.5s ease;
}

/* Icon sizes for specific wrappers - applied via icon-wrapper--lg */
.success-icon-wrapper svg,
.info-icon-wrapper svg,
.error-icon-wrapper svg {
    width: 40px;
    height: 40px;
}

/* ==========================================================================
   Password Strength Indicator
   ========================================================================== */

.password-strength {
    margin-top: -0.5rem;
    margin-bottom: 1rem;
    display: none;
}

.password-strength.show {
    display: block;
}

.strength-bars {
    display: flex;
    gap: 4px;
    margin-bottom: 0.35rem;
}

.strength-bar {
    flex: 1;
    height: 4px;
    background: #e9ecef;
    border-radius: 2px;
    transition: background 0.3s ease;
}

.strength-bar.weak {
    background: var(--color-danger);
}

.strength-bar.medium {
    background: var(--color-warning);
}

.strength-bar.strong {
    background: var(--color-success);
}

.strength-text {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.strength-text.weak {
    color: var(--color-danger);
}

.strength-text.medium {
    color: var(--color-warning);
}

.strength-text.strong {
    color: var(--color-success);
}

/* ==========================================================================
   Password Hint
   ========================================================================== */

.password-hint {
    background: var(--bg-info-gradient);
    border-radius: var(--radius-md);
    padding: 0.875rem var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
}

.password-hint .hint-icon {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    margin-right: 0.75rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.password-hint-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.4;
}

/* ==========================================================================
   Countdown Wrapper
   ========================================================================== */

.countdown-wrapper {
    background: var(--bg-warning-gradient);
    border: 1px solid var(--color-warning);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-top: var(--spacing-md);
    display: none;
}

.countdown-wrapper.show {
    display: block;
    animation: slideDown var(--transition-base);
}

.countdown-text {
    color: #856404;
    font-size: 0.9rem;
    text-align: center;
}

.countdown-number {
    font-weight: 700;
    font-size: 1.1rem;
    color: #d63384;
    margin: 0 var(--spacing-xs);
}

/* ==========================================================================
   Loading Overlay
   ========================================================================== */

.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.loading-content {
    text-align: center;
    color: white;
    padding: 2rem;
}

.loading-spinner {
    width: 3.5rem;
    height: 3.5rem;
    border-width: 0.3rem;
}

.loading-text {
    margin-top: 1rem;
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.95;
}

/* ==========================================================================
   Icons
   ========================================================================== */

.icon-sm,
.icon-md {
    width: 20px;
    height: 20px;
}

.icon-lg {
    width: 24px;
    height: 24px;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

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

.d-block {
    display: block !important;
}

.d-flex {
    display: flex !important;
}

.text-center {
    text-align: center;
}

/* Flexbox utilities */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-align-center {
    display: flex;
    align-items: center;
}

/* Button hover lift effect - reusable animation */
.btn-hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.btn-hover-lift:hover:not(:disabled) {
    transform: translateY(-2px);
}

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

/* Button icon sizing utility */
.btn-icon svg {
    width: 18px;
    height: 18px;
    margin-right: var(--spacing-sm);
    flex-shrink: 0;
}

/* ==========================================================================
   i18n Loading State
   ========================================================================== */

/* Hide translatable content until i18n is loaded */
body:not(.i18n-ready) [data-i18n],
body:not(.i18n-ready) [data-i18n-placeholder],
body:not(.i18n-ready) [data-i18n-title] {
    visibility: hidden;
}

/* Show loading indicator on container while i18n loads */
body:not(.i18n-ready) .login-container,
body:not(.i18n-ready) .logout-container,
body:not(.i18n-ready) .consent-container,
body:not(.i18n-ready) .error-container,
body:not(.i18n-ready) .welcome-container,
body:not(.i18n-ready) .reset-password-container,
body:not(.i18n-ready) .otp-container,
body:not(.i18n-ready) .reset-password-box {
    position: relative;
}

body:not(.i18n-ready) .login-container::before,
body:not(.i18n-ready) .logout-container::before,
body:not(.i18n-ready) .consent-container::before,
body:not(.i18n-ready) .error-container::before,
body:not(.i18n-ready) .welcome-container::before,
body:not(.i18n-ready) .reset-password-container::before,
body:not(.i18n-ready) .otp-container::before,
body:not(.i18n-ready) .reset-password-box::before,
body:not(.i18n-ready) .container-card::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: i18n-spinner 0.8s linear infinite;
    z-index: 10;
}

@keyframes i18n-spinner {
    to {
        transform: rotate(360deg);
    }
}

/* Smooth transition when content becomes visible */
body.i18n-ready [data-i18n],
body.i18n-ready [data-i18n-placeholder],
body.i18n-ready [data-i18n-title] {
    visibility: visible;
    animation: fadeIn 0.2s ease;
}

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

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 576px) {
    .container-card,
    .login-container,
    .logout-container,
    .consent-container,
    .error-container,
    .welcome-container,
    .reset-password-container,
    .otp-container {
        width: 95%;
        padding: 1.5rem;
    }
}