/* Modern CSS Reset and Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Professional Color Palette - Blue & Purple (No Gradients) */
    --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;

    --accent-400: #a78bfa;
    --accent-500: #8b5cf6;
    --accent-600: #7c3aed;

    --success-400: #4ade80;
    --success-500: #22c55e;
    --success-600: #16a34a;

    --error-400: #f87171;
    --error-500: #ef4444;
    --error-600: #dc2626;

    --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 */
    --primary: var(--primary-600);
    --primary-hover: var(--primary-700);
    --accent: var(--accent-500);
    --success: var(--success-500);
    --error: var(--error-500);
    --bg: #fafbfc;
    --surface: #ffffff;
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --border: var(--gray-200);

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* 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 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Accessibility: Skip to main content link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--primary);
    color: white;
    padding: var(--space-2) var(--space-4);
    text-decoration: none;
    border-radius: 0 0 var(--radius-md) 0;
    z-index: 9999;
    font-weight: 600;
    transition: top var(--transition-base);
    opacity: 0;
    pointer-events: none;
}

.skip-link:focus {
    top: 0;
    opacity: 1;
    pointer-events: auto;
    outline: 3px solid var(--accent-500);
    outline-offset: 2px;
}

/* Global focus styles for accessibility */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Enhanced focus for interactive elements */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Visually hidden but accessible to screen readers */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Navbar */
.navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: var(--space-4) 0;
    position: sticky;
    top: 0;
    z-index: 50;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.8);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: translateY(-1px);
}

.logo-icon {
    font-size: 1.75rem;
    line-height: 1;
}

.logo-text {
    color: var(--primary);
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color var(--transition-base);
    position: relative;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

.nav-link:hover::after {
    width: 100%;
}

/* GitHub Nav Link */
.github-nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
    padding: var(--space-2);
    border-radius: var(--radius-md);
}

.github-nav-link:hover {
    color: var(--text-primary);
    background: var(--gray-100);
}

.github-icon-nav {
    flex-shrink: 0;
}

.github-stars-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.875rem;
    font-weight: 500;
}

.star-icon-nav {
    flex-shrink: 0;
}

/* Buttons */
.btn-primary-small {
    padding: var(--space-2) var(--space-5);
    background: var(--primary);
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

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

button, .btn {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
    font-weight: 600;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    font-family: inherit;
}

button:hover:not(:disabled), .btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

button:active:not(:disabled), .btn:active {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: var(--space-12) 0;
}

/* Page Header (for authenticated pages) */
.page-header {
    text-align: center;
    margin-bottom: var(--space-12);
    padding: var(--space-8) 0;
}

.page-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.page-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: var(--space-16);
    padding: var(--space-16) 0;
    position: relative;
}

/* Removed decorative background element */

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: var(--space-6);
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero .gradient-text {
    color: var(--primary);
}

.hero p {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

.tagline {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--primary-50);
    color: var(--primary-700);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-6);
}

/* Shortener Form */
.shortener-form {
    max-width: 700px;
    margin: 0 auto var(--space-12);
    display: flex;
    gap: var(--space-3);
}

#url-input {
    flex: 1;
    padding: var(--space-5) var(--space-6);
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-xl);
    outline: none;
    transition: all var(--transition-base);
    background: var(--surface);
    font-family: inherit;
    box-shadow: var(--shadow-sm);
}

#url-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-100);
}

#url-input::placeholder {
    color: var(--gray-400);
}

/* Cards and Sections */
.card {
    background: var(--surface);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

#progress-section,
#options-section,
#result-section {
    max-width: 700px;
    margin: var(--space-12) auto;
    padding: var(--space-10);
    background: var(--surface);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    animation: slideUp 0.4s ease-out;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hidden {
    display: none;
}

#status-message {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
}

#status-message::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

/* Error State */
#status-message.error {
    color: var(--error-600);
}

#status-message.error::before {
    background: var(--error-500);
    animation: none;
}

.error-card {
    background: #fee2e2;
    border-color: var(--error-400);
}

.error-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--error-500);
    color: white;
    border-radius: 50%;
    font-size: 1.5rem;
    margin-bottom: var(--space-4);
}

.error-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--error-600);
    margin-bottom: var(--space-3);
}

.error-message {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.error-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
}

.btn-secondary {
    background: var(--gray-200) !important;
    color: var(--text-primary) !important;
}

.btn-secondary:hover {
    background: var(--gray-300) !important;
}

/* Slug Options */
.slug-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin: var(--space-8) 0;
}

#options-section h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-6);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.slug-option {
    padding: var(--space-5);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--gray-50);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.slug-option:hover {
    border-color: var(--primary-400);
    background: var(--primary-50);
    transform: translateX(4px);
}

.slug-option.selected {
    border-color: var(--primary);
    background: var(--primary-100);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.slug-option input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary);
    cursor: pointer;
}

.slug-option label {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    flex: 1;
    font-family: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Consolas', monospace;
    letter-spacing: -0.01em;
}

/* Result Section */
.result-card h3 {
    margin-bottom: var(--space-6);
    color: var(--text-primary);
    font-size: 1.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.result-card h3::before {
    content: '✨';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-size: 1.25rem;
}

.short-url-display {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

#short-url-result {
    flex: 1;
    padding: var(--space-4) var(--space-5);
    font-size: 1.125rem;
    border: 2px solid var(--primary-300);
    border-radius: var(--radius-lg);
    background: var(--primary-100);
    font-family: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-weight: 500;
    color: var(--primary-700);
    letter-spacing: -0.01em;
}

#copy-btn {
    background: var(--primary) !important;
    white-space: nowrap;
}

#copy-btn:hover {
    background: var(--primary-hover) !important;
}

.original-url {
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    word-break: break-all;
    padding: var(--space-4);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.original-url span {
    color: var(--text-primary);
    font-weight: 500;
}

.result-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    margin-top: var(--space-6);
}

/* Inline Edit Section */
.edit-section {
    background: var(--primary-50);
    border: 2px solid var(--primary-200);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-top: var(--space-3);
    margin-bottom: var(--space-3);
}

.edit-section label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-700);
    margin-bottom: var(--space-2);
}

.edit-input-group {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    flex-wrap: wrap;
}

.url-prefix {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
}

.edit-input-group input[type="text"] {
    flex: 1;
    min-width: 150px;
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    transition: all var(--transition-fast);
    background: var(--surface);
}

.edit-input-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.1);
}

.edit-input-group input[type="text"]:invalid {
    border-color: var(--error-400);
}

.edit-input-group button {
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
    white-space: nowrap;
}

.edit-hint {
    display: block;
    margin-top: var(--space-2);
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Flash Messages */
.flash-messages {
    max-width: 700px;
    margin: var(--space-6) auto;
}

.flash {
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    font-weight: 500;
    animation: slideDown 0.3s ease-out;
}

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

.flash-success {
    background: #d1fae5;
    color: var(--success-600);
    border: 1px solid var(--success-400);
}

.flash-error {
    background: #fee2e2;
    color: var(--error-600);
    border: 1px solid var(--error-400);
}

/* Auth Forms */
.auth-form {
    max-width: 450px;
    margin: var(--space-16) auto;
    padding: var(--space-10);
    background: var(--surface);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
}

.auth-form h2 {
    margin-bottom: var(--space-8);
    text-align: center;
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.auth-description {
    text-align: center;
    margin-bottom: var(--space-6);
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.form-group input {
    width: 100%;
    padding: var(--space-4);
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    outline: none;
    transition: all var(--transition-base);
    background: var(--surface);
    font-family: inherit;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.auth-form button {
    width: 100%;
    margin-top: var(--space-4);
}

.auth-link {
    text-align: center;
    margin-top: var(--space-6);
    color: var(--text-secondary);
}

.auth-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

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

/* Password input wrapper */
.password-input-wrapper {
    position: relative;
    width: 100%;
}

.password-input-wrapper input {
    width: 100% !important;
    padding-right: 3rem !important; /* Make space for the toggle */
}

.password-toggle {
    position: absolute !important;
    top: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    height: auto !important;
    width: 3rem !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: transparent !important;
    border: none !important;
    cursor: pointer !important;
    color: var(--gray-500) !important;
    transition: color var(--transition-base) !important;
    padding: 0 !important;
    margin: 0 !important;
    box-shadow: none !important;
    transform: none !important;
}

.password-toggle:hover {
    color: var(--gray-700) !important;
    background: transparent !important;
    transform: none !important;
    box-shadow: none !important;
}

.eye-icon {
    display: block;
}

.password-toggle .eye-closed {
    display: none;
}

.password-toggle.showing .eye-open {
    display: none;
}

.password-toggle.showing .eye-closed {
    display: block;
}

/* Confirmation Card */
.confirmation-card {
    text-align: center;
}

.confirmation-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    margin: 0 auto var(--space-6);
}

.confirmation-actions {
    margin-top: var(--space-8);
}

.confirmation-actions .btn {
    display: inline-block;
    text-decoration: none;
}

/* Dashboard */
.dashboard-urls {
    margin-top: var(--space-8);
}

.url-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

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

.url-info {
    flex: 1;
}

.url-slug {
    font-size: 1.125rem;
    margin-bottom: var(--space-2);
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
}

.url-slug strong {
    color: var(--primary);
    font-weight: 700;
}

.url-original {
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    word-break: break-all;
    font-size: 0.875rem;
}

.url-meta {
    font-size: 0.8125rem;
    color: var(--gray-400);
}

.url-actions {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}

.url-actions button {
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
}

.delete-form {
    display: inline;
    margin: 0;
}

.qr-btn {
    display: inline-flex !important;
    align-items: center !important;
    gap: var(--space-1) !important;
    background: var(--accent) !important;
    color: white !important;
}

.qr-btn:hover {
    background: var(--accent-600) !important;
}

.qr-btn svg {
    flex-shrink: 0;
}

.delete-btn {
    background: var(--error) !important;
}

.delete-btn:hover {
    background: var(--error-600) !important;
}

.empty-state {
    text-align: center;
    padding: var(--space-16);
    background: var(--surface);
    border-radius: var(--radius-2xl);
    margin-top: var(--space-8);
    border: 2px dashed var(--border);
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    font-size: 1.125rem;
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: var(--space-12) 0;
    margin-top: var(--space-20);
}

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

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: var(--space-3);
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--space-2);
}

.footer-social {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-6) 0;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--gray-600);
    background: var(--gray-50);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    text-decoration: none;
}

.social-link:hover {
    color: var(--primary);
    background: var(--primary-50);
    transform: translateY(-2px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-copyright {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer-github {
    margin: var(--space-6) 0;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: var(--gray-900);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.github-link:hover {
    background: var(--gray-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.github-icon {
    flex-shrink: 0;
}

.github-text {
    white-space: nowrap;
}

.github-stars {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
}

.star-icon {
    color: #fbbf24;
}

/* Responsive Design */

/* Tablets and smaller */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-4);
    }

    .nav-links {
        gap: var(--space-4);
    }

    .hero h1 {
        font-size: clamp(2rem, 4vw, 3rem);
    }
}

/* Mobile devices */
@media (max-width: 768px) {
    /* Container and spacing */
    .container {
        padding: 0 var(--space-4);
    }

    /* Navbar */
    .navbar {
        padding: var(--space-3) 0;
    }

    .logo {
        font-size: 1.25rem;
    }

    .logo-icon {
        font-size: 1.5rem;
    }

    .nav-links {
        gap: var(--space-3);
        font-size: 0.875rem;
    }

    .nav-link {
        font-size: 0.875rem;
    }

    .btn-primary-small {
        padding: var(--space-2) var(--space-3);
        font-size: 0.875rem;
    }

    /* GitHub nav link - make icon smaller */
    .github-nav-link {
        padding: var(--space-1);
    }

    .github-icon-nav {
        width: 18px;
        height: 18px;
    }

    .github-stars-badge {
        font-size: 0.75rem;
    }

    .star-icon-nav {
        width: 12px;
        height: 12px;
    }

    /* Hero section */
    .hero {
        padding: var(--space-8) 0;
        margin-bottom: var(--space-8);
    }

    .hero h1 {
        font-size: clamp(1.75rem, 6vw, 2.5rem);
        margin-bottom: var(--space-4);
    }

    .hero p {
        font-size: 1rem;
    }

    .tagline {
        font-size: 0.75rem;
        padding: var(--space-1) var(--space-3);
        margin-bottom: var(--space-4);
    }

    /* Page header */
    .page-header {
        padding: var(--space-4) 0;
        margin-bottom: var(--space-8);
    }

    .page-header h1 {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }

    .page-header p {
        font-size: 1rem;
    }

    /* Shortener form */
    .shortener-form {
        flex-direction: column;
        gap: var(--space-3);
    }

    #url-input {
        padding: var(--space-4);
        font-size: 0.9375rem;
    }

    /* Cards and sections */
    #progress-section,
    #options-section,
    #result-section {
        padding: var(--space-6);
        margin: var(--space-8) auto;
    }

    /* Slug options */
    .slug-option {
        padding: var(--space-4);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    .slug-option label {
        font-size: 1rem;
        word-break: break-all;
    }

    /* Result section */
    .result-card h3 {
        font-size: 1.5rem;
        flex-direction: column;
        text-align: center;
    }

    .short-url-display {
        flex-direction: column;
        gap: var(--space-2);
    }

    #short-url-result {
        font-size: 0.9375rem;
        padding: var(--space-3);
    }

    .result-actions {
        flex-direction: column;
        gap: var(--space-2);
    }

    .result-actions button {
        width: 100%;
    }

    /* Auth forms */
    .auth-form {
        margin: var(--space-8) auto;
        padding: var(--space-6);
        max-width: 100%;
    }

    .auth-form h2 {
        font-size: 1.5rem;
        margin-bottom: var(--space-6);
    }

    .form-group {
        margin-bottom: var(--space-4);
    }

    .form-group input {
        font-size: 0.9375rem;
    }

    .auth-link {
        font-size: 0.875rem;
    }

    /* Dashboard */
    .dashboard-urls h2 {
        font-size: 1.5rem;
    }

    .url-card {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
        padding: var(--space-4);
    }

    .url-slug {
        font-size: 1rem;
    }

    .url-original {
        font-size: 0.8125rem;
    }

    .url-actions {
        width: 100%;
        flex-wrap: wrap;
    }

    .url-actions button {
        flex: 1;
        min-width: 120px;
        font-size: 0.8125rem;
        padding: var(--space-2) var(--space-3);
    }

    /* Make QR button text visible on mobile */
    .qr-btn {
        gap: var(--space-2) !important;
        justify-content: center !important;
    }

    .qr-btn svg {
        width: 14px !important;
        height: 14px !important;
    }

    /* Empty state */
    .empty-state {
        padding: var(--space-8);
    }

    .empty-state p {
        font-size: 1rem;
    }

    /* Footer */
    .footer {
        padding: var(--space-8) 0;
        margin-top: var(--space-12);
    }

    .footer-brand {
        font-size: 1.125rem;
    }

    .footer-tagline,
    .footer-copyright {
        font-size: 0.8125rem;
    }

    /* Buttons */
    button, .btn {
        padding: var(--space-3) var(--space-6);
        font-size: 0.9375rem;
    }

    /* Flash messages */
    .flash {
        padding: var(--space-3) var(--space-4);
        font-size: 0.875rem;
    }

    /* Confirmation card */
    .confirmation-card {
        padding: var(--space-6);
    }

    .confirmation-icon {
        width: 48px;
        height: 48px;
    }

    .confirmation-icon svg {
        width: 32px;
        height: 32px;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    /* Even tighter spacing */
    .container {
        padding: 0 var(--space-3);
    }

    /* Navbar - stack or hide some items if needed */
    .nav-links {
        gap: var(--space-2);
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .logo {
        font-size: 1.125rem;
    }

    .btn-primary-small {
        padding: var(--space-1) var(--space-3);
        font-size: 0.8125rem;
    }

    /* Hero */
    .hero {
        padding: var(--space-6) 0;
    }

    .hero h1 {
        font-size: 1.5rem;
        line-height: 1.2;
    }

    .hero p {
        font-size: 0.9375rem;
    }

    /* Forms */
    .shortener-form {
        gap: var(--space-2);
    }

    #url-input {
        padding: var(--space-3);
        font-size: 0.875rem;
    }

    /* Cards */
    #progress-section,
    #options-section,
    #result-section {
        padding: var(--space-4);
        margin: var(--space-6) auto;
    }

    /* Auth forms */
    .auth-form {
        padding: var(--space-4);
        margin: var(--space-6) auto;
    }

    .auth-form h2 {
        font-size: 1.25rem;
    }

    /* Dashboard */
    .url-card {
        padding: var(--space-3);
    }

    .url-actions {
        flex-direction: column;
    }

    .url-actions button {
        width: 100%;
        min-width: auto;
    }

    /* Buttons */
    button, .btn {
        padding: var(--space-3) var(--space-4);
        font-size: 0.875rem;
    }

    /* Footer */
    .footer {
        padding: var(--space-6) 0;
    }
}