:root {
    --color-primary: #4F46E5;
    --color-primary-dark: #4338CA;
    --color-primary-light: #818CF8;
    --color-primary-50: #EEF2FF;
    --color-secondary: #0EA5E9;
    --color-secondary-dark: #0284C7;
    --color-accent: #F59E0B;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F8FAFC;
    --color-bg-dark: #0F172A;
    --color-text: #1E293B;
    --color-text-light: #64748B;
    --color-text-white: #F8FAFC;
    --color-border: #E2E8F0;
    --color-success: #10B981;
    --color-error: #EF4444;
    --color-error-bg: #FEF2F2;
    --color-success-bg: #F0FDF4;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.2s ease;
    --max-width: 1200px;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ============ HEADER / NAV ============ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.nav-logo svg {
    width: 32px;
    height: 32px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 0.938rem;
    font-weight: 500;
    color: var(--color-text-light);
    transition: color var(--transition);
}

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

.nav-auth {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.938rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text);
}

.btn-ghost:hover {
    background: var(--color-bg-alt);
    color: var(--color-primary);
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.063rem;
    border-radius: var(--radius-md);
}

.btn-white {
    background: #fff;
    color: var(--color-primary);
}

.btn-white:hover {
    background: var(--color-primary-50);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.nav-mobile {
    display: none;
}

/* Mobile menu toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    margin: 6px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ============ HERO ============ */
.hero {
    padding: 100px 0 80px;
    background: linear-gradient(135deg, var(--color-primary-50) 0%, #fff 50%, #EDE9FE 100%);
    overflow: hidden;
}

.hero-inner {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--color-primary-50);
    color: var(--color-primary);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid var(--color-primary-light);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--color-bg-dark);
    margin-bottom: 20px;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--color-text-light);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    flex: 1;
    position: relative;
}

.hero-mockup {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 24px;
    border: 1px solid var(--color-border);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.mockup-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.mockup-dot.red { background: #EF4444; }
.mockup-dot.yellow { background: #F59E0B; }
.mockup-dot.green { background: #10B981; }

.mockup-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.mockup-widget {
    padding: 16px;
    border-radius: var(--radius-md);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
}

.mockup-widget h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    margin-bottom: 10px;
}

.mockup-widget .bar {
    height: 8px;
    border-radius: 4px;
    background: var(--color-border);
    margin-bottom: 8px;
}

.mockup-widget .bar.filled {
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

.mockup-widget .bar.w-80 { width: 80%; }
.mockup-widget .bar.w-60 { width: 60%; }
.mockup-widget .bar.w-40 { width: 40%; }
.mockup-widget .bar.w-90 { width: 90%; }

.mockup-widget.full-width {
    grid-column: span 2;
}

.mockup-calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.mockup-calendar-grid span {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    border-radius: 4px;
    color: var(--color-text-light);
}

.mockup-calendar-grid span.today {
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
}

.mockup-calendar-grid span.has-event {
    background: var(--color-primary-50);
    color: var(--color-primary);
    font-weight: 600;
}

/* ============ FEATURES ============ */
.features {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-header .label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--color-bg-dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 36px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
    background: #fff;
}

.feature-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.feature-icon.purple {
    background: var(--color-primary-50);
    color: var(--color-primary);
}

.feature-icon.blue {
    background: #E0F2FE;
    color: var(--color-secondary);
}

.feature-icon.amber {
    background: #FEF3C7;
    color: var(--color-accent);
}

.feature-icon.green {
    background: #ECFDF5;
    color: var(--color-success);
}

.feature-icon.rose {
    background: #FFF1F2;
    color: #F43F5E;
}

.feature-icon.indigo {
    background: #E0E7FF;
    color: #6366F1;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-bg-dark);
}

.feature-card p {
    font-size: 0.938rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ============ PRICING ============ */
.pricing {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    align-items: start;
}

.pricing-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl);
    transform: scale(1.04);
}

.pricing-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: #fff;
    padding: 4px 20px;
    border-radius: 100px;
    font-size: 0.813rem;
    font-weight: 600;
}

.pricing-card .plan-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-bg-dark);
    margin-bottom: 8px;
}

.pricing-card .plan-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-bg-dark);
    line-height: 1;
    margin-bottom: 4px;
}

.pricing-card .plan-price .currency {
    font-size: 1.5rem;
    vertical-align: super;
}

.pricing-card .plan-price .period {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-light);
}

.pricing-card .plan-desc {
    font-size: 0.938rem;
    color: var(--color-text-light);
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--color-border);
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-card ul li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.938rem;
    color: var(--color-text);
}

.pricing-card ul li svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-success);
}

.pricing-card .btn {
    width: 100%;
}

/* ============ CTA ============ */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-section p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 540px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ============ FOOTER ============ */
.site-footer {
    background: var(--color-bg-dark);
    color: var(--color-text-white);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    color: #94A3B8;
    font-size: 0.938rem;
    line-height: 1.7;
    margin-top: 16px;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 20px;
    color: #CBD5E1;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul a {
    color: #94A3B8;
    font-size: 0.938rem;
    transition: color var(--transition);
}

.footer-col ul a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #1E293B;
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #64748B;
    font-size: 0.875rem;
}

/* ============ PAGE HEADER ============ */
.page-header {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--color-primary-50) 0%, #fff 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-bg-dark);
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.page-header p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 560px;
    margin: 0 auto;
}

/* ============ ABOUT PAGES ============ */
.about-content {
    padding: 80px 0;
}

.about-section {
    margin-bottom: 64px;
}

.about-section:last-child {
    margin-bottom: 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-grid.reverse {
    direction: rtl;
}

.about-grid.reverse > * {
    direction: ltr;
}

.about-text h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-bg-dark);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.about-text p {
    font-size: 1.063rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-visual {
    background: linear-gradient(135deg, var(--color-primary-50), #E0E7FF);
    border-radius: var(--radius-lg);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.about-visual svg {
    width: 100%;
    max-width: 280px;
    height: auto;
    color: var(--color-primary);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.value-card {
    text-align: center;
    padding: 32px;
}

.value-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    background: var(--color-primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
}

.value-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-bg-dark);
    margin-bottom: 8px;
}

.value-card p {
    font-size: 0.938rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ============ PRODUCT FEATURES ============ */
.product-features {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.feature-detailed {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-bottom: 80px;
}

.feature-detailed:last-child {
    margin-bottom: 0;
}

.feature-detailed:nth-child(even) {
    direction: rtl;
}

.feature-detailed:nth-child(even) > * {
    direction: ltr;
}

.feature-detailed-visual {
    background: linear-gradient(135deg, var(--color-primary-50), #DBEAFE);
    border-radius: var(--radius-lg);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
}

.feature-detailed-text h3 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-bg-dark);
    margin-bottom: 16px;
}

.feature-detailed-text p {
    font-size: 1.063rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.938rem;
    color: var(--color-text);
}

.feature-list li svg {
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--color-success);
}

/* ============ FAQ ============ */
.faq-content {
    padding: 80px 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--color-primary-light);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-sans);
    font-size: 1.063rem;
    font-weight: 600;
    color: var(--color-bg-dark);
    transition: background var(--transition);
}

.faq-question:hover {
    background: var(--color-bg-alt);
}

.faq-question svg {
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--color-text-light);
}

.faq-item.open .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer-inner {
    padding: 0 24px 20px;
    font-size: 0.938rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============ CONTACT ============ */
.contact-content {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-info h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-bg-dark);
    margin-bottom: 16px;
}

.contact-info p {
    font-size: 1.063rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-detail-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--color-primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-primary);
}

.contact-detail h4 {
    font-size: 0.938rem;
    font-weight: 700;
    color: var(--color-bg-dark);
    margin-bottom: 4px;
}

.contact-detail p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ============ FORMS ============ */
.form-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-bg-dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.938rem;
    color: var(--color-text);
    background: #fff;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #94A3B8;
}

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

.form-message {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.938rem;
    font-weight: 500;
    display: none;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.form-message.error {
    background: var(--color-error-bg);
    color: var(--color-error);
    border: 1px solid #FECACA;
}

.form-message.success {
    background: var(--color-success-bg);
    color: #059669;
    border: 1px solid #A7F3D0;
}

.form-message.show {
    display: flex;
}

/* ============ AUTH PAGES ============ */
.auth-section {
    min-height: calc(100vh - 72px - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    background: var(--color-bg-alt);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.auth-header {
    text-align: center;
    margin-bottom: 36px;
}

.auth-header .auth-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.auth-header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-bg-dark);
    margin-bottom: 8px;
}

.auth-header p {
    font-size: 0.938rem;
    color: var(--color-text-light);
}

.auth-form .btn {
    width: 100%;
    margin-top: 4px;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.auth-footer a {
    color: var(--color-primary);
    font-weight: 600;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.forgot-password {
    display: block;
    text-align: right;
    font-size: 0.813rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-top: -12px;
    margin-bottom: 20px;
}

.forgot-password:hover {
    text-decoration: underline;
}

.password-field {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-light);
    cursor: pointer;
    padding: 4px;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

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

.btn.loading {
    opacity: 0.85;
    pointer-events: none;
}

/* ============ LEGAL PAGES ============ */
.legal-content {
    padding: 80px 0;
}

.legal-body {
    max-width: 800px;
    margin: 0 auto;
}

.legal-updated {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
}

.legal-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-bg-dark);
    margin-top: 40px;
    margin-bottom: 16px;
}

.legal-body h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-bg-dark);
    margin-top: 24px;
    margin-bottom: 12px;
}

.legal-body p {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.legal-body ul {
    margin-bottom: 16px;
    padding-left: 24px;
}

.legal-body ul li {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 8px;
}

.legal-body a {
    color: var(--color-primary);
    font-weight: 600;
}

.legal-body a:hover {
    text-decoration: underline;
}

/* ============ 404 ============ */
.error-page {
    min-height: calc(100vh - 72px - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 0;
}

.error-page h1 {
    font-size: 8rem;
    font-weight: 800;
    color: var(--color-primary-light);
    line-height: 1;
    margin-bottom: 16px;
}

.error-page h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-bg-dark);
    margin-bottom: 12px;
}

.error-page p {
    color: var(--color-text-light);
    margin-bottom: 32px;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.75rem;
    }
    
    .features-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr 1fr 1fr;
        gap: 32px;
    }

    .footer-grid .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-auth {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-mobile {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--color-border);
        padding: 24px;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-mobile.open {
        display: block;
    }
    
    .nav-mobile ul {
        list-style: none;
        margin-bottom: 16px;
    }
    
    .nav-mobile ul li a {
        display: block;
        padding: 12px 0;
        font-size: 1rem;
        font-weight: 500;
        color: var(--color-text);
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-mobile ul li:last-child a {
        border-bottom: none;
    }
    
    .nav-mobile .mobile-auth {
        display: flex;
        gap: 12px;
        padding-top: 16px;
    }
    
    .nav-mobile .mobile-auth .btn {
        flex: 1;
    }
    
    .hero-inner {
        flex-direction: column;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2.25rem;
    }
    
    .hero p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .features-grid,
    .pricing-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid,
    .feature-detailed,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .about-grid.reverse,
    .feature-detailed:nth-child(even) {
        direction: ltr;
    }
    
    .section-header h2,
    .page-header h1 {
        font-size: 2rem;
    }
    
    .cta-section h2 {
        font-size: 2rem;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .auth-card {
        padding: 32px 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-card {
        padding: 28px 24px;
    }
}