/* Enhanced styles.css - Modern dark theme with animations */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #1a1a25;
    --bg-tertiary: #252536;
    --bg-card: #1e1e2e;
    --bg-input: #2a2a3e;

    --text-primary: #ffffff;
    --text-secondary: #e0e0e6;
    --text-muted: #9090a0;
    --text-disabled: #6a6a7a;

    --accent-primary: #bb86fc;
    --accent-secondary: #6200ee;
    --accent-tertiary: #3700b3;
    --accent-glow: rgba(187, 134, 252, 0.3);

    --neon-purple: #c778dd;
    --neon-cyan: #56d8e4;
    --neon-green: #98c379;

    --border-primary: #3a3a4a;
    --border-secondary: #4a4a5a;
    --border-accent: var(--accent-primary);

    --success-color: #03dac6;
    --success-bg: rgba(3, 218, 198, 0.1);
    --warning-color: #ffa726;
    --warning-bg: rgba(255, 167, 38, 0.1);
    --error-color: #cf6679;
    --error-bg: rgba(207, 102, 121, 0.1);

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px var(--accent-glow);

    --border-radius-sm: 6px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;

    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

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

*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 400;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* Global animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--accent-glow);
    }
    50% {
        box-shadow: 0 0 20px var(--accent-glow);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Component animations */
.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

.animate-slide-in {
    animation: slideInRight 0.4s ease-out;
}

/* Login Styles */
.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background:
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
}

.login-body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="0.5" fill="%23ffffff" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.login-container {
    background: rgba(30, 30, 46, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    position: relative;
    animation: fadeIn 0.8s ease-out;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
}

.brand-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.brand-logo {
    width: 96px;
    height: 96px;
    margin: 0 auto var(--spacing-md);
    border-radius: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    animation: glow 2s ease-in-out infinite alternate;
}

.brand-title {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--neon-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.brand-tagline {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 400;
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-normal);
    position: relative;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: var(--bg-tertiary);
}

.form-group input:focus + label {
    color: var(--accent-primary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
    color: var(--text-primary);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    font-family: inherit;
    text-decoration: none;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

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

.btn:hover::before {
    left: 100%;
}

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

.btn-primary {
    width: 100%;
}

.login-info {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-primary);
    text-align: center;
}

.login-info p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.demo-credentials {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    color: var(--neon-green);
}

.error-message {
    color: var(--error-color);
    background: var(--error-bg);
    border: 1px solid var(--error-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    animation: slideInRight 0.3s ease-out;
}

/* Dashboard Styles */
.dashboard-body {
    min-height: 100vh;
    background:
        radial-gradient(circle at 10% 20%, rgba(120, 119, 198, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(255, 119, 198, 0.1) 0%, transparent 50%),
        linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.dashboard-header {
    background: rgba(30, 30, 46, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-primary);
    padding: var(--spacing-lg) var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 100;
    animation: fadeIn 0.6s ease-out;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.brand-logo-small {
    width: 64px;
    height: 64px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
}

.brand-info h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.brand-info .tagline {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}

.user-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.user-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.user-info .username {
    color: var(--accent-primary);
    font-weight: 500;
}

.btn-logout {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: 1px solid var(--border-secondary);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.btn-logout:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--accent-glow);
    transform: none;
    box-shadow: none;
}

.dashboard-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-2xl);
    animation: fadeIn 0.8s ease-out 0.2s both;
}

/* Tool Section */
.tool-section {
    background: rgba(30, 30, 46, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.tool-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
}

.tool-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.tool-title {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--neon-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.tool-description {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

.url-input-section {
    margin-bottom: var(--spacing-xl);
}

.input-wrapper {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.url-input {
    flex: 1;
    padding: var(--spacing-lg) var(--spacing-xl);
    border: 2px solid var(--border-primary);
    border-radius: var(--border-radius-lg);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 1.1rem;
    font-family: inherit;
    transition: all var(--transition-normal);
    min-width: 0;
}

.url-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px var(--accent-glow);
    background: var(--bg-tertiary);
}

.url-input::placeholder {
    color: var(--text-disabled);
}

.btn-trace {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.1rem;
    font-weight: 600;
    white-space: nowrap;
    min-width: 40px;
    max-width: 120px;
}

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

.advanced-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    transition: color var(--transition-fast);
}

.advanced-toggle:hover {
    color: var(--neon-cyan);
}

.advanced-toggle-icon {
    transition: transform var(--transition-fast);
}

.advanced-toggle.expanded .advanced-toggle-icon {
    transform: rotate(180deg);
}

.options-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.options-panel.expanded {
    max-height: 200px;
}

.option-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-primary);
}

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

.select-wrapper {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.custom-select {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    padding-right: 3rem;
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: inherit;
    cursor: pointer;
    appearance: none;
    transition: all var(--transition-normal);
}

.custom-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.select-wrapper::after {
    content: '▼';
    position: absolute;
    top: 50%;
    right: var(--spacing-md);
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

.select-wrapper:focus-within::after {
    transform: translateY(-50%) rotate(180deg);
    color: var(--accent-primary);
}

/* Results Section */
.results-section {
    background: rgba(30, 30, 46, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.6s ease-out;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-primary);
}

.results-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.results-stats {
    display: flex;
    gap: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-value {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Loading State */
.loading-container {
    text-align: center;
    padding: var(--spacing-2xl);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-primary);
    border-top: 3px solid var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

.loading-text {
    color: var(--text-muted);
    font-size: 1rem;
}

.loading-steps {
    margin-top: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-disabled);
}

/* Redirect Chain */
.redirect-chain {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.redirect-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-lg);
    position: relative;
    transition: all var(--transition-normal);
    animation: slideInRight 0.4s ease-out;
    animation-fill-mode: both;
}

.redirect-item:nth-child(1) { animation-delay: 0.1s; }
.redirect-item:nth-child(2) { animation-delay: 0.2s; }
.redirect-item:nth-child(3) { animation-delay: 0.3s; }
.redirect-item:nth-child(4) { animation-delay: 0.4s; }
.redirect-item:nth-child(5) { animation-delay: 0.5s; }

.redirect-item:hover {
    transform: translateX(4px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.redirect-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, var(--accent-primary), var(--neon-cyan));
    border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm);
}

.redirect-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.redirect-info {
    flex: 1;
    min-width: 0;
}

.redirect-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.step-number {
    background: var(--accent-primary);
    color: var(--bg-primary);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.redirect-url {
    color: var(--text-primary);
    font-weight: 500;
    text-decoration: none;
    word-break: break-all;
    transition: color var(--transition-fast);
}

.redirect-url:hover {
    color: var(--accent-primary);
}

.redirect-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.025em;
}

.status-success {
    background: var(--success-bg);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.status-redirect {
    background: var(--warning-bg);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

.status-error {
    background: var(--error-bg);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

.redirect-type {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-primary);
}

.redirect-arrow {
    color: var(--accent-primary);
    font-size: 1.25rem;
    margin: var(--spacing-sm) 0;
    text-align: center;
    animation: pulse 2s ease-in-out infinite;
}

/* Final Destination */
.final-destination {
    background: linear-gradient(135deg, var(--success-bg), rgba(3, 218, 198, 0.05));
    border: 2px solid var(--success-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.6s ease-out 0.6s both;
}

.final-destination::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--success-color), transparent);
}

.final-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.final-icon {
    width: 32px;
    height: 32px;
    background: var(--success-color);
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
}

.final-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--success-color);
}

.final-url-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.final-url {
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    color: var(--text-primary);
    word-break: break-all;
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.final-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.btn-copy {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 1px solid var(--success-color);
    color: var(--success-color);
    font-size: 0.875rem;
    position: relative;
    overflow: hidden;
}

.btn-copy:hover {
    background: var(--success-bg);
    transform: none;
    box-shadow: none;
}

.btn-copy.copied {
    background: var(--success-color);
    color: var(--bg-primary);
}

.btn-visit {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    font-size: 0.875rem;
}

.btn-visit:hover {
    background: var(--accent-glow);
    transform: none;
    box-shadow: none;
}

/* Error States */
.error-container {
    background: var(--error-bg);
    border: 2px solid var(--error-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    animation: fadeIn 0.6s ease-out;
}

.error-icon {
    width: 48px;
    height: 48px;
    background: var(--error-color);
    color: var(--text-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    margin: 0 auto var(--spacing-lg);
}

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

.error-message {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
}

.error-suggestions {
    text-align: left;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.error-suggestions h4 {
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.error-suggestions ul {
    list-style: none;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.error-suggestions li {
    margin-bottom: var(--spacing-xs);
    position: relative;
    padding-left: var(--spacing-lg);
}

.error-suggestions li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-header {
        padding: var(--spacing-md);
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

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

    .tool-section,
    .results-section {
        padding: var(--spacing-lg);
    }

    .input-wrapper {
        flex-direction: column;
    }

    .url-input {
        min-width: auto;
    }

    .btn-trace {
        min-width: auto;
    }

    .option-group {
        flex-direction: column;
        align-items: stretch;
    }

    .select-wrapper {
        min-width: auto;
    }

    .redirect-content {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .redirect-meta {
        width: 100%;
        justify-content: flex-start;
    }

    .final-actions {
        justify-content: center;
    }

    .login-container {
        margin: var(--spacing-lg);
        padding: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .tool-title {
        font-size: 1.5rem;
    }

    .brand-title {
        font-size: 1.5rem;
    }

    .url-input {
        font-size: 1rem;
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .btn-trace {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 1rem;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border-primary: #666;
        --border-secondary: #888;
        --text-muted: #ccc;
        --bg-input: #222;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .dashboard-header,
    .btn,
    .advanced-options {
        display: none;
    }

    .results-section {
        box-shadow: none;
        border: 2px solid #000;
    }

    .redirect-item {
        break-inside: avoid;
    }
}