/* ================================
   Jotaid Landing Page Styles
   Mobile-First Responsive Design
   ================================ */

/* ============ CSS Variables ============ */
:root {
    /* Light Theme Colors (Cadmium Light) */
    --color-bg-light: #FFFFFF;
    --color-bg-secondary-light: #F5F5F7;
    --color-text-primary-light: #1C1C1E;
    --color-text-secondary-light: #6E6E73;
    --color-accent-light: #007AFF;
    --color-accent-hover-light: #0051D5;
    --color-border-light: #D1D1D6;

    /* Dark Theme Colors (OneDark) */
    --color-bg-dark: #1C1C1E;
    --color-bg-secondary-dark: #2C2C2E;
    --color-text-primary-dark: #FFFFFF;
    --color-text-secondary-dark: #AEAEB2;
    --color-accent-dark: #0A84FF;
    --color-accent-hover-dark: #409CFF;
    --color-border-dark: #38383A;

    /* Active Theme (default: light) */
    --color-bg: var(--color-bg-light);
    --color-bg-secondary: var(--color-bg-secondary-light);
    --color-text-primary: var(--color-text-primary-light);
    --color-text-secondary: var(--color-text-secondary-light);
    --color-accent: var(--color-accent-light);
    --color-accent-hover: var(--color-accent-hover-light);
    --color-border: var(--color-border-light);

    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    --font-family-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    --font-family-logo: "Stack Sans Notch", -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
    --font-family-mono: "SF Mono", "Menlo", "Monaco", "Courier New", monospace;

    /* Spacing (8px base) */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 80px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
}

/* Dark Mode */
[data-theme="dark"] {
    --color-bg: var(--color-bg-dark);
    --color-bg-secondary: var(--color-bg-secondary-dark);
    --color-text-primary: var(--color-text-primary-dark);
    --color-text-secondary: var(--color-text-secondary-dark);
    --color-accent: var(--color-accent-dark);
    --color-accent-hover: var(--color-accent-hover-dark);
    --color-border: var(--color-border-dark);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
}

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

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

body {
    font-family: var(--font-family-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* ============ Typography ============ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-family-display);
    font-weight: 600;
    line-height: 1.2;
}

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

a:hover {
    color: var(--color-accent-hover);
}

/* ============ Navigation ============ */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: background-color var(--transition-base);
}

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

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

.brand-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.1;
}

.logo {
    width: 24px;
    height: 24px;
}

.brand-font {
    font-family: var(--font-family-logo);
}

.brand-name {
    font-family: var(--font-family-logo);
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1;
}

.brand-tagline {
    font-family: var(--font-family-logo);
    font-size: 0.9rem;
    font-weight: 200;
    color: var(--color-text-secondary);
    margin-left: 4px;
}

.brand-info .brand-tagline {
    font-size: 0.75rem;
    margin-top: 2px;
    margin-left: 0;
}

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

.nav-link {
    font-size: 0.9375rem;
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

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

.lang-switch {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    background-color: var(--color-bg-secondary);
}

.theme-toggle {
    border: none;
    background: none;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--color-bg-secondary);
}

.theme-icon {
    display: none;
}

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

/* Mobile Navigation */
@media (max-width: 767px) {
    .nav-content {
        padding: var(--spacing-sm) 0;
    }

    .nav .brand-tagline {
        display: none;
        /* Hide slogan to save horizontal space in header on mobile */
    }

    .nav-links {
        gap: 6px;
    }

    .nav-link:not(.lang-switch) {
        display: none;
        /* Hide text links like "Features" to avoid crowding */
    }

    .brand-name {
        font-size: 1.25rem;
    }

    .logo {
        width: 20px;
        height: 20px;
    }
}

/* ============ Hero Section ============ */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg);
    z-index: -1;
    overflow: hidden;
}

.hero-blob {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(242, 197, 61, 0.15) 0%, rgba(242, 197, 61, 0) 70%);
    filter: blur(80px);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

[data-theme="dark"] .hero-blob {
    background: radial-gradient(circle, rgba(242, 197, 61, 0.1) 0%, rgba(242, 197, 61, 0) 70%);
}

.blob-1 {
    top: -200px;
    left: -100px;
    animation: blobFloat 20s infinite alternate ease-in-out;
}

.blob-2 {
    bottom: -200px;
    right: -100px;
    background: radial-gradient(circle, rgba(0, 122, 255, 0.1) 0%, rgba(0, 122, 255, 0) 70%);
    animation: blobFloat 25s infinite alternate-reverse ease-in-out;
}

.blob-3 {
    top: 20%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(214, 142, 4, 0.12) 0%, rgba(214, 142, 4, 0) 70%);
    animation: blobFloat 15s infinite alternate ease-in-out;
}

@keyframes blobFloat {
    0% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(100px, 50px) scale(1.1);
    }

    66% {
        transform: translate(-50px, 120px) scale(0.9);
    }

    100% {
        transform: translate(0, 0) scale(1);
    }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.hero-trial {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

@media (min-width: 768px) {
    .hero {
        min-height: 700px;
        padding: 120px 0;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-subtitle {
        font-size: 2.25rem;
    }

    .hero-description {
        font-size: 1.25rem;
    }
}

/* ============ CTA Buttons ============ */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.cta-primary {
    background-color: var(--color-accent);
    color: white;
}

.cta-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cta-secondary {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.cta-secondary:hover {
    background-color: var(--color-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.apple-icon {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

.cta-secondary .apple-icon {
    filter: none;
}

[data-theme="dark"] .cta-secondary .apple-icon {
    filter: brightness(0) invert(1);
}

/* ============ Section Titles ============ */
.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-primary);
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
}

/* ============ Workflow Section ============ */
.workflow {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg);
}

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

@media (min-width: 768px) {
    .workflow-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .workflow-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.workflow-card {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.workflow-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.workflow-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.workflow-description {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.workflow-features {
    list-style: none;
    padding-left: 0;
}

.workflow-features li {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.workflow-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

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

.feature-block {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    align-items: center;
}

@media (min-width: 768px) {
    .feature-block {
        grid-template-columns: 1fr 1fr;
    }

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

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

.feature-content h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.feature-what,
.feature-why,
.feature-how {
    margin-bottom: var(--spacing-md);
}

.feature-what h4,
.feature-why h4,
.feature-how h4 {
    font-size: 1rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.feature-what p,
.feature-why p,
.feature-how p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.feature-visual {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.feature-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base);
}

.feature-image:hover {
    transform: scale(1.02);
}

.feature-placeholder {
    color: var(--color-text-secondary);
    font-style: italic;
}

/* ============ Audience Section ============ */
.audience {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg);
}

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

@media (min-width: 768px) {
    .audience-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .audience-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.audience-card {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.audience-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.audience-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.audience-pain h4,
.audience-solution h4 {
    font-size: 0.875rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.audience-pain p,
.audience-solution p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.audience-pain {
    margin-bottom: var(--spacing-sm);
}

/* ============ CTA Section ============ */
.cta {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    text-align: center;
}

.cta-title {
    font-size: 2rem;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.cta-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.cta-macos,
.cta-ios {
    background-color: white;
    color: var(--color-accent);
}

.cta-macos:hover,
.cta-ios:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.cta-macos .apple-icon,
.cta-ios .apple-icon {
    filter: none;
}

.cta-platforms {
    margin-top: var(--spacing-md);
}

.platform-support {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.platform-badge {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    background-color: rgba(255, 255, 255, 0.15);
}

@media (min-width: 768px) {
    .cta-title {
        font-size: 2.5rem;
    }

    .cta-subtitle {
        font-size: 1.25rem;
    }
}

/* ============ Footer ============ */
.footer {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    background-color: var(--color-bg-secondary);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.footer-brand-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

@media (min-width: 768px) {
    .footer-brand {
        align-items: flex-start;
    }
}

.footer-logo {
    width: 48px;
    height: 48px;
}

.footer-brand-name {
    font-family: var(--font-family-logo);
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

@media (min-width: 768px) {
    .footer-links {
        justify-content: flex-end;
    }
}

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

.footer-link:hover {
    color: var(--color-accent);
}

.footer-copyright {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.footer-copyright p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ============ Accessibility ============ */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Skip to main content (for screen readers) */
.skip-to-main {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-accent);
    color: white;
    padding: 8px 16px;
    z-index: 200;
}

.skip-to-main:focus {
    top: 0;
}