/* ===========================
   CSS Reset & Base Styles
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Blue Palette */
    --primary-50: #e3f2fd;
    --primary-100: #bbdefb;
    --primary-200: #90caf9;
    --primary-300: #64b5f6;
    --primary-400: #42a5f5;
    --primary-500: #2196f3;
    --primary-600: #1e88e5;
    --primary-700: #1976d2;
    --primary-800: #1565c0;
    --primary-900: #0d47a1;

    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Semantic Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --error: #ef4444;
    --error-light: #fee2e2;
    --warning: #f59e0b;
    --warning-light: #fef3c7;

    /* 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;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

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

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-primary);
    color: var(--gray-800);
    background-color: var(--gray-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-700);
}

/* ===========================
   Container & Layout
   =========================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===========================
   Buttons
   =========================== */
.btn-primary,
.btn-outline,
.btn-secondary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: var(--white) !important;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-700), var(--primary-800));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white) !important;
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    border-color: var(--primary-600);
}

.btn-outline:hover {
    background: var(--primary-600);
    color: var(--white);
}

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

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

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

.btn-primary:disabled,
.btn-outline:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ===========================
   Navbar
   =========================== */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

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

.nav-brand h1 {
    font-size: 1.5rem;
    color: var(--primary-600);
    margin: 0;
}

.nav-brand span {
    color: var(--gray-700);
}

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

.nav-links a {
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-600);
}

.nav-links .btn-primary {
    color: var(--white) !important;
}

.nav-links .btn-primary:hover {
    color: var(--white) !important;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-toggle span {
    width: 24px;
    height: 3px;
    background: var(--gray-700);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.mobile-toggle.is-open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.is-open span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.is-open span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--primary-50), var(--white));
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-700), var(--primary-900));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    height: 400px;
}

.hero-card {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ===========================
   Features Section
   =========================== */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-2xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-xl);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* ===========================
   Pricing Section
   =========================== */
.pricing {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--gray-200);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border-color: var(--primary-500);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.pricing-name {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.pricing-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-600);
    margin-bottom: var(--spacing-xs);
}

.pricing-cycle {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    color: var(--gray-700);
}

.pricing-features li:before {
    content: "✓ ";
    color: var(--success);
    font-weight: bold;
    margin-right: var(--spacing-sm);
}

.pricing-loader {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--gray-500);
}

/* ===========================
   CTA Section
   =========================== */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
    color: var(--white);
    text-align: center;
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.cta-section p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.cta-section .btn-primary {
    background: var(--white);
    color: var(--primary-600);
}

.cta-section .btn-primary:hover {
    background: var(--gray-100);
    color: var(--primary-700);
}

/* ===========================
   Footer
   =========================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    flex: 1;
    max-width: 300px;
}

.footer-brand h3 {
    color: var(--primary-400);
    margin-bottom: var(--spacing-sm);
}

.footer-brand span {
    color: var(--white);
}

.footer-brand p {
    color: var(--gray-400);
}

.footer-links {
    display: flex;
    gap: var(--spacing-2xl);
    flex: 2;
    justify-content: flex-end;
}

.footer-col h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.footer-col a {
    display: block;
    color: var(--gray-400);
    margin-bottom: var(--spacing-sm);
}

.footer-col a:hover {
    color: var(--primary-400);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-700);
    color: var(--gray-500);
}

/* ===========================
   Auth Pages
   =========================== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-50), var(--white));
}

.auth-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 450px;
}

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

.auth-header h1 {
    font-size: 2rem;
    color: var(--primary-600);
    margin-bottom: var(--spacing-lg);
}

.auth-header h1 span {
    color: var(--gray-700);
}

.auth-header h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.auth-header p {
    color: var(--gray-600);
    margin-bottom: 0;
}

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

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

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

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="url"] {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
    font-family: var(--font-primary);
}

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

.form-group input:disabled {
    background: var(--gray-100);
    cursor: not-allowed;
}

.form-hint {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
}

.form-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-weight: normal;
    margin: 0;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.link-primary {
    color: var(--primary-600);
    font-weight: 600;
}

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

.auth-footer {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
}

/* ===========================
   Alerts
   =========================== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

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

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

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

/* ===========================
   Dashboard Layout
   =========================== */
.dashboard-body {
    background: var(--gray-100);
}

.dashboard-nav {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.dashboard-nav-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.sidebar-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background: var(--gray-100);
}

.sidebar-toggle span {
    width: 24px;
    height: 3px;
    background: var(--gray-700);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.sidebar-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.sidebar-toggle.active span:nth-child(2) {
    opacity: 0;
}

.sidebar-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.dashboard-nav-brand h1 {
    font-size: 1.5rem;
    color: var(--primary-600);
    margin: 0;
}

.dashboard-nav-brand span {
    color: var(--gray-700);
}

.user-menu {
    position: relative;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gray-100);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
}

.user-menu-toggle:hover {
    background: var(--gray-200);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary-600);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.user-name {
    font-weight: 600;
    color: var(--gray-700);
}

.user-menu-dropdown {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    right: 0;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.user-menu-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-menu-dropdown a {
    display: block;
    padding: var(--spacing-md);
    color: var(--gray-700);
    transition: var(--transition);
}

.user-menu-dropdown a:hover {
    background: var(--gray-100);
    color: var(--primary-600);
}

.dashboard-container {
    display: flex;
    min-height: calc(100vh - 64px);
}

.dashboard-sidebar {
    width: 250px;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    padding: var(--spacing-xl) 0;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.sidebar-link:hover {
    background: var(--gray-50);
    color: var(--primary-600);
}

.sidebar-link.active {
    background: var(--primary-50);
    color: var(--primary-600);
    border-left-color: var(--primary-600);
}

.sidebar-icon {
    font-size: 1.25rem;
}

.dashboard-main {
    flex: 1;
    padding: var(--spacing-xl);
    overflow-y: auto;
}

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

.dashboard-header h1 {
    margin-bottom: var(--spacing-sm);
}

.dashboard-header p {
    color: var(--gray-600);
    font-size: 1.125rem;
    margin-bottom: 0;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.dashboard-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.dashboard-card.card-full {
    grid-column: 1 / -1;
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

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

.card-description {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
}

.card-actions {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.info-label {
    font-weight: 600;
    color: var(--gray-600);
}

.info-value {
    color: var(--gray-900);
    font-weight: 500;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.action-card {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.action-card:hover {
    background: var(--primary-50);
    border-color: var(--primary-200);
    transform: translateY(-3px);
}

.action-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.action-card h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--gray-900);
}

.action-card p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

/* ===========================
   Badges
   =========================== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    letter-spacing: 0.5px;
}

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

.badge-success {
    background: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning);
}

.badge-error {
    background: var(--error-light);
    color: var(--error);
}

/* ===========================
   Settings Forms
   =========================== */
.settings-form {
    max-width: 600px;
}

.subscription-plan {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.subscription-plan h2 {
    margin: 0;
    font-size: 1.75rem;
}

.subscription-plans {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* ===========================
   Feature Result
   =========================== */
.feature-result {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border: 2px solid var(--primary-200);
}

.feature-result h4 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-700);
}

.result-content {
    color: var(--gray-700);
}

.result-content a {
    color: var(--primary-600);
    word-break: break-all;
}

.result-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.result-url-text {
    font-family: 'Roboto Mono', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--gray-600);
    word-break: break-all;
}

.btn-link {
    background: none;
    border: none;
    padding: 0;
    color: var(--primary-600);
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
    font-size: 0.95rem;
}

.btn-link:hover {
    color: var(--primary-700);
}

.result-preview {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(31, 41, 55, 0.08);
    display: flex;
    justify-content: center;
    align-items: center;
}

.result-preview img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-200);
}

/* ===========================
   Verification Page
   =========================== */
.verification-loader {
    text-align: center;
    padding: var(--spacing-2xl);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-600);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-image {
        height: 300px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .footer-content {
        flex-direction: column;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-xl);
    }

    .footer-brand {
        max-width: 100%;
    }

    .sidebar-toggle {
        display: flex;
    }

    .dashboard-sidebar {
        position: fixed;
        left: -250px;
        top: 64px;
        height: calc(100vh - 64px);
        z-index: 999;
        transition: var(--transition);
        box-shadow: var(--shadow-xl);
    }

    .dashboard-sidebar.active {
        left: 0;
    }

    .sidebar-overlay {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 998;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .sidebar-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }

    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }

    .nav-links.active,
    .nav-links.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        width: 100%;
        padding: var(--spacing-md) 0;
    }

    .nav-links .btn-primary,
    .nav-links .btn-outline {
        width: 100%;
        text-align: center;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding: var(--spacing-xl) 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn-lg {
        width: 100%;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .form-row-2 {
        grid-template-columns: 1fr;
    }

    .quick-actions {
        grid-template-columns: 1fr;
    }

    .subscription-plans {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

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

    .hero-title {
        font-size: 1.75rem;
    }

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