/* 16Personalities-inspired Design System */

:root {
    /* Primary Colors - Teal/Turquoise */
    --primary-50: #f0f9ff;
    --primary-100: #e0f2fe;
    --primary-200: #bae6fd;
    --primary-300: #7dd3fc;
    --primary-400: #38bdf8;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    --primary-900: #0c4a6e;

    /* Accent Colors - Blue */
    --accent-50: #f0f9ff;
    --accent-100: #e0f2fe;
    --accent-200: #bae6fd;
    --accent-300: #7dd3fc;
    --accent-400: #38bdf8;
    --accent-500: #0ea5e9;
    --accent-600: #0284c7;
    --accent-700: #0369a1;
    --accent-800: #075985;
    --accent-900: #0c4a6e;

    /* Light Blue Colors - For Login Page */
    --light-blue-50: #f0f9ff;
    --light-blue-100: #e0f2fe;
    --light-blue-200: #bae6fd;
    --light-blue-300: #7dd3fc;
    --light-blue-400: #38bdf8;
    --light-blue-500: #0ea5e9;
    --light-blue-600: #0284c7;
    --light-blue-700: #0369a1;
    --light-blue-800: #075985;
    --light-blue-900: #0c4a6e;

    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-400) 0%, var(--primary-600) 100%);
    --gradient-soft: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
    --gradient-dark: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-900) 100%);

    /* Light Blue Gradients - For Login Page */
    --gradient-light-blue: linear-gradient(135deg, var(--light-blue-50) 0%, var(--light-blue-100) 100%);
    --gradient-blue-button: linear-gradient(135deg, var(--light-blue-500) 0%, var(--light-blue-600) 100%);
    --gradient-blue-button-hover: linear-gradient(135deg, var(--light-blue-600) 0%, var(--light-blue-700) 100%);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Soft Shadows - For Login Page */
    --shadow-soft: 0 2px 8px 0 rgb(0 0 0 / 0.04), 0 1px 2px 0 rgb(0 0 0 / 0.02);

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-display: 'Inter', var(--font-sans);

    /* Responsive Breakpoints */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
}

/* Responsive Typography & Spacing */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2.5rem;
        --spacing-3xl: 3.5rem;
    }

    h1 {
        font-size: 2rem !important;
    }

    h2 {
        font-size: 1.75rem !important;
    }

    h3 {
        font-size: 1.25rem !important;
    }
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    color: var(--gray-800);
    line-height: 1.6;
    background: var(--gradient-soft);
    min-height: 100vh;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Card Component */
.card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.card-sm {
    padding: var(--spacing-lg);
}

.card-lg {
    padding: var(--spacing-3xl);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    font-family: var(--font-display);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary-600);
    border: 2px solid var(--primary-600);
}

.btn-secondary:hover {
    background: var(--primary-50);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    font-family: var(--font-sans);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Radio Buttons (Modern Style) */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.radio-option {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s ease;
}

.radio-option:hover {
    border-color: var(--primary-300);
    background: var(--primary-50);
}

.radio-option input[type="radio"] {
    margin-right: var(--spacing-md);
    width: 20px;
    height: 20px;
    accent-color: var(--primary-500);
}

.radio-option input[type="radio"]:checked+.radio-label {
    font-weight: 600;
    color: var(--primary-700);
}

.radio-option:has(input:checked) {
    border-color: var(--primary-500);
    background: var(--primary-50);
}

/* Progress Bar */
.progress-container {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
    border-radius: var(--radius-full);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-primary {
    background: var(--primary-100);
    color: var(--primary-700);
}

.badge-accent {
    background: var(--accent-100);
    color: var(--accent-700);
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

/* Alert Messages */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success);
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--error);
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--info);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    .card {
        padding: var(--spacing-lg);
    }

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

/* Responsive Layout Utilities */
.flex-pc-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.header-logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .header-logo-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}

.grid-pc-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.grid-pc-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 769px) {
    .flex-pc-row {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .grid-pc-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-pc-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .padding-pc-lg {
        padding: var(--spacing-2xl) var(--spacing-xl) !important;
    }

    .padding-pc-xl {
        padding: var(--spacing-3xl) var(--spacing-2xl) !important;
    }
}

/* Mobile Navigation Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    order: 10;
    /* Ensure it stays on the far right */
}

/* Navigation Links */
.nav-links {
    display: flex;
    align-items: center;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        display: none !important;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--gray-100);
        box-shadow: var(--shadow-md);
        z-index: 100;
    }

    .nav-links.active {
        display: flex !important;
    }
}

/* Utility Classes */
.show-mobile {
    display: none;
}

.hide-mobile {
    display: block;
}

@media (max-width: 768px) {
    .show-mobile {
        display: block;
    }

    .hide-mobile {
        display: none;
    }
}

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

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

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

.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

.p-sm {
    padding: var(--spacing-sm);
}

.p-md {
    padding: var(--spacing-md);
}

.p-lg {
    padding: var(--spacing-lg);
}

.p-xl {
    padding: var(--spacing-xl);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(-20px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.slide-in {
    animation: slideIn 0.3s ease;
}

/* Light Blue Login Styles */
.form-input-light-blue {
    width: 100%;
    padding: 0.875rem 1.25rem;
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: var(--font-sans);
    background: white;
}

.form-input-light-blue:focus {
    outline: none;
    border-color: var(--light-blue-400);
    box-shadow: 0 0 0 4px var(--light-blue-100), 0 1px 3px 0 rgb(0 0 0 / 0.1);
}

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

.btn-light-blue {
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-display);
    background: var(--gradient-blue-button);
    color: white;
    box-shadow: var(--shadow-soft);
}

.btn-light-blue:hover {
    background: var(--gradient-blue-button-hover);
    box-shadow: 0 4px 12px 0 rgb(2 132 199 / 0.2);
    transform: translateY(-1px);
}

.btn-light-blue:active {
    transform: translateY(0);
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-soft);
    width: 100%;
    max-width: 450px;
    margin: 0 auto;
}

@media (min-width: 769px) {
    .login-card {
        max-width: 500px;
        padding: var(--spacing-3xl) var(--spacing-3xl);
        box-shadow: var(--shadow-xl);
    }
}

.login-link {
    color: var(--light-blue-600);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.login-link:hover {
    color: var(--light-blue-700);
    text-decoration: underline;
}

.login-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--gray-200);
}

.login-divider span {
    padding: 0 var(--spacing-md);
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Auth Page Background */
.auth-page-wrapper {
    min-height: calc(100vh - 300px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-md);
    background: radial-gradient(circle at top right, var(--primary-50), transparent),
        radial-gradient(circle at bottom left, var(--light-blue-50), transparent);
    border-radius: 32px;
}

/* Hero Card and Content Centering */
.hero-card {
    background: #ffffff;
    border-radius: 32px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--primary-100);
    padding: var(--spacing-2xl) var(--spacing-md);
    /* Mobile padding */
    width: 100%;
    margin: 0 auto;
}

@media (min-width: 769px) {
    .hero-card {
        padding: var(--spacing-3xl) var(--spacing-xl);
        /* PC padding */
    }
}

.hero-content-center {
    text-align: center !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
}

.hero-content-center h1,
.hero-content-center p,
.hero-content-center div {
    text-align: center !important;
    margin-left: auto !important;
    margin-right: auto !important;
}