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

:root {
    /* Colour Palette */
    --primary-teal: #00AAA7;
    --dark-teal: #0A7A78;
    --dark-blue: #1A2B3D;
    --navy: #0F1B2A;
    --purple: #7B68EE;
    --purple-dark: #6A5ACD;
    --white: #FFFFFF;
    --light-gray: #F5F5F5;
    --gray: #E0E4EC;
    --text-dark: #263238;
    --text-light: rgba(255, 255, 255, 0.9);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

/* Header */
.header {
    background-color: var(--white);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 36px;
    width: auto;
    display: block;
}

.logo-img-footer {
    height: 32px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-list a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-list a:hover {
    color: var(--primary-teal);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-teal);
    transition: width var(--transition-fast);
}

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

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-dark);
    cursor: pointer;
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    background-color: var(--light-gray);
    color: var(--primary-teal);
}

.theme-toggle .icon-sun {
    display: none;
}

.theme-toggle .icon-moon {
    display: block;
}

[data-theme="dark"] .theme-toggle {
    color: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
}

[data-theme="dark"] .theme-toggle .icon-moon {
    display: none;
}

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

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    transition: all var(--transition-fast);
}

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

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Navigation */
@media (max-width: 968px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
    }
    
    .nav.active {
        max-height: 400px;
    }
    
    .nav-list {
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
    }
    
    .nav-list a {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--gray);
    }
    
    .nav-list a:last-child {
        border-bottom: none;
    }
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    font-family: var(--font-family);
}

.btn-outline {
    background-color: var(--white);
    color: var(--primary-teal);
    border: 1px solid var(--primary-teal);
}

.btn-outline:hover {
    background-color: var(--primary-teal);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 170, 167, 0.3);
}

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

.btn-primary:hover {
    background-color: var(--dark-teal);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 170, 167, 0.3);
}

.btn-cta {
    background-color: var(--primary-teal);
    color: var(--white);
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-cta:hover {
    background-color: var(--dark-teal);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 170, 167, 0.3);
}

.btn-secondary {
    background-color: var(--purple);
    color: var(--white);
    margin-top: var(--spacing-md);
}

.btn-secondary:hover {
    background-color: var(--purple-dark);
    transform: translateY(-2px);
}

.btn-submit {
    background-color: var(--primary-teal);
    color: var(--white);
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
}

.btn-submit:hover {
    background-color: var(--dark-teal);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: var(--spacing-2xl) 0;
    background-color: var(--white);
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-extrabold);
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-dark);
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

/* Sections */
.section {
    padding: var(--spacing-2xl) 0;
}

.section-light {
    background-color: var(--white);
}

.section-dark {
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--dark-teal) 100%);
    color: var(--white);
}

/* Stats Section */
.section-stats {
    padding: var(--spacing-lg) 0;
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--dark-teal) 100%);
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    align-items: center;
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.stat-heading {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    opacity: 0.95;
    margin: 0;
}

.stat-number {
    font-size: 2.75rem;
    font-weight: var(--font-weight-extrabold);
    display: block;
    line-height: 1.1;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    margin: 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: inherit;
}

.section-dark .section-title {
    color: var(--white);
}

.section-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    color: inherit;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

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

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

.feature-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.feature-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-title {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: inherit;
}

.feature-description {
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.9;
}

.feature-list {
    list-style: none;
    margin-top: var(--spacing-md);
}

.feature-list li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-teal);
    font-weight: var(--font-weight-bold);
}

.section-dark .feature-list li::before {
    color: var(--white);
}

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

.feature-block h4 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: inherit;
}

.feature-block p {
    font-size: 1.1rem;
    line-height: 1.7;
    opacity: 0.9;
}

/* Integrations */
.integrations-section {
    text-align: center;
}

.integrations-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.integration-logo {
    padding: var(--spacing-md);
    background-color: var(--light-gray);
    border-radius: 12px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-dark);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100px;
}

.integration-logo:hover {
    background-color: var(--primary-teal);
    color: var(--white);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 170, 167, 0.3);
}

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

.integrations-note {
    margin-top: var(--spacing-md);
    font-size: 1rem;
    color: var(--text-dark);
    opacity: 0.8;
}

/* Security Grid */
.security-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.security-item {
    padding: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.security-item:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
}

.security-item h4 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--white);
}

.security-item p {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.9;
}

/* Demo Form */
.demo-section {
    padding: var(--spacing-2xl) 0;
}

.demo-form-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--navy);
    padding: var(--spacing-xl);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.demo-form-intro {
    text-align: center;
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.demo-form-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--white);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.demo-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group select {
    padding: 1rem;
    border: 2px solid var(--primary-teal);
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1rem;
    font-family: var(--font-family);
    transition: all var(--transition-base);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--white);
    background-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(0, 170, 167, 0.2);
}

.form-group select {
    color: var(--white);
    cursor: pointer;
}

.form-group select option {
    background-color: var(--navy);
    color: var(--white);
}

.form-privacy {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-sm);
}

.form-privacy a {
    color: var(--primary-teal);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.form-privacy a:hover {
    color: var(--white);
    text-decoration: underline;
}

/* Footer */
.footer {
    background-color: var(--navy);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-social h4 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--white);
}

.social-icons {
    display: flex;
    gap: var(--spacing-sm);
}

.social-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-base);
    border-radius: 50%;
}

.social-icon:hover {
    color: var(--primary-teal);
    background-color: rgba(0, 170, 167, 0.1);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-grid-reverse {
        direction: ltr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 2.25rem;
    }
    
    .integrations-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .security-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-icons {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .feature-title {
        font-size: 1.5rem;
    }
    
    .integrations-grid {
        grid-template-columns: 1fr;
    }
    
    .integrations-grid-wide {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .security-grid {
        grid-template-columns: 1fr;
    }
    
    .demo-form-container {
        padding: var(--spacing-md);
    }
    
    .demo-form-title {
        font-size: 2rem;
    }
    
    .header-actions {
        gap: var(--spacing-xs);
    }
    
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .btn-cta {
        padding: 0.9rem 1.8rem;
        font-size: 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section > .container > * {
    animation: fadeInUp 0.6s ease-out;
}

/* Dark Mode */
[data-theme="dark"] {
    color-scheme: dark;
}

[data-theme="dark"] body {
    background-color: #0F1B2A;
    color: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .header {
    background-color: #0F1B2A;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .nav-list a {
    color: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .nav-list a:hover {
    color: var(--primary-teal);
}


[data-theme="dark"] .hero {
    background-color: #0F1B2A;
}

[data-theme="dark"] .hero-title,
[data-theme="dark"] .hero-subtitle {
    color: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] .section-light {
    background-color: #1A2B3D;
    color: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .section-light .section-title,
[data-theme="dark"] .section-light .section-subtitle,
[data-theme="dark"] .section-light .feature-title,
[data-theme="dark"] .section-light .feature-description,
[data-theme="dark"] .section-light .feature-block h4,
[data-theme="dark"] .section-light .feature-block p,
[data-theme="dark"] .section-light .feature-list li::before {
    color: inherit;
}

[data-theme="dark"] .section-dark {
    background: linear-gradient(135deg, #0A7A78 0%, #0A5F5D 100%);
}

[data-theme="dark"] .integration-logo {
    background-color: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .integration-logo:hover {
    background-color: var(--primary-teal);
    color: var(--white);
}

[data-theme="dark"] .integrations-note {
    color: rgba(255, 255, 255, 0.7);
}

[data-theme="dark"] .demo-form-container {
    background-color: #1A2B3D;
}

[data-theme="dark"] .btn-outline {
    background-color: transparent;
    color: var(--primary-teal);
    border-color: var(--primary-teal);
}

[data-theme="dark"] .btn-outline:hover {
    background-color: var(--primary-teal);
    color: var(--white);
}

@media (max-width: 968px) {
    [data-theme="dark"] .nav {
        background-color: #0F1B2A;
    }
    [data-theme="dark"] .nav-list a {
        border-bottom-color: rgba(255, 255, 255, 0.15);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for accessibility */
a:focus,
button:focus,
input:focus,
select:focus {
    outline: 2px solid var(--primary-teal);
    outline-offset: 2px;
}