/* ==========================================================================
   BreatheCalm Landing Page Styles
   A warm, calming design with beige backgrounds and purple accents
   ========================================================================== */

/* CSS Variables */
:root {
    /* Colors - Warm Beige Theme */
    --color-bg: #F5F0E6;
    --color-bg-warm: #EDE6D6;
    --color-card: #E8E0D0;
    --color-text: #2D2A26;
    --color-text-muted: #5C5650;
    --color-text-light: #8A847A;
    
    /* Accent Colors */
    --color-accent: #7B68A6;
    --color-accent-light: #9B8AC0;
    --color-accent-dark: #5C4D82;
    --color-accent-bg: rgba(123, 104, 166, 0.1);
    
    /* Secondary Accent */
    --color-green: #4A8B5E;
    --color-green-light: #6BA87A;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    --space-3xl: 8rem;
    
    /* Typography */
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Sizing */
    --max-width: 1200px;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-radius-lg: 24px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.nav--scrolled,
.nav--solid {
    background-color: rgba(245, 240, 230, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

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

.nav-brand-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-text);
}

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

.nav-icon {
    font-size: 1.5rem;
    color: var(--color-accent);
}

.nav-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.nav-cta {
    background-color: var(--color-accent);
    color: white;
    padding: var(--space-xs) var(--space-md);
    border-radius: 100px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.nav-cta:hover {
    background-color: var(--color-accent-dark);
    color: white;
    transform: translateY(-2px);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-radius: 100px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background-color: var(--color-green-light);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(74, 139, 94, 0.3);
}

.btn-secondary {
    background-color: var(--color-card);
    color: var(--color-text);
}

.btn-secondary:hover {
    background-color: var(--color-bg-warm);
    color: var(--color-text);
}

.btn-large {
    padding: var(--space-md) var(--space-xl);
    font-size: 1.1rem;
}

.btn-icon {
    width: 24px;
    height: 24px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-3xl) var(--space-lg) var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.hero-content {
    flex: 1;
    max-width: 550px;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    background-color: var(--color-accent-bg);
    color: var(--color-accent);
    padding: var(--space-xs) var(--space-md);
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.hero-title em {
    font-style: italic;
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    max-width: 450px;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    min-height: 500px;
}

.hero-phone {
    position: relative;
    z-index: 2;
    max-width: 320px;
    transform: rotate(2deg);
    transition: transform var(--transition-slow);
}

.hero-phone:hover {
    transform: rotate(0deg) scale(1.02);
}

.hero-screenshot {
    border-radius: var(--border-radius-lg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.hero-orb {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-accent-light) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0.3;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    animation: pulse 6s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.4; }
}

/* ==========================================================================
   Section Styles
   ========================================================================== */

.section-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-text);
}

.section-title em {
    font-style: italic;
    color: var(--color-accent);
}

/* ==========================================================================
   Features Section
   ========================================================================== */

.features {
    padding: var(--space-3xl) var(--space-lg);
    background-color: var(--color-bg-warm);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    max-width: var(--max-width);
    margin: 0 auto;
}

.feature-card {
    background-color: var(--color-bg);
    padding: var(--space-xl);
    border-radius: var(--border-radius);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.feature-desc {
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 1.7;
}

/* ==========================================================================
   Screenshots Section
   ========================================================================== */

.screenshots {
    padding: var(--space-3xl) var(--space-lg);
}

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

.screenshots-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    max-width: var(--max-width);
    margin: 0 auto;
}

.screenshot-item {
    text-align: center;
}

.screenshot-item img {
    border-radius: var(--border-radius);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: var(--space-md);
    transition: transform var(--transition-base);
}

.screenshot-item:hover img {
    transform: scale(1.02);
}

.screenshot-label {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Benefits Section
   ========================================================================== */

.benefits {
    padding: var(--space-3xl) var(--space-lg);
    background-color: var(--color-bg-warm);
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

.benefits-content {
    flex: 1;
    min-width: 300px;
    max-width: 600px;
    margin: 0 auto;
}

.benefits-list {
    list-style: none;
    margin-top: var(--space-xl);
}

.benefits-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

.benefit-check {
    color: var(--color-green);
    font-weight: 600;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.benefits-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 300px;
}

.breathing-demo {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.breathing-orb {
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, #B8D4C8 0%, #8FB3A1 50%, #6A9A85 100%);
    border-radius: 50%;
    animation: breathe 8s ease-in-out infinite;
    box-shadow: 0 0 60px rgba(143, 179, 161, 0.4);
}

.breathing-orb.exhale {
    animation: breatheOut 4s ease-in-out;
}

@keyframes breathe {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 1; }
}

.breathing-text {
    position: absolute;
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.2rem;
    color: var(--color-text-muted);
    bottom: -20px;
}

/* ==========================================================================
   Download CTA Section
   ========================================================================== */

.download {
    padding: var(--space-3xl) var(--space-lg);
    text-align: center;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
}

.download-content {
    max-width: 600px;
    margin: 0 auto;
}

.download-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 400;
    color: white;
    margin-bottom: var(--space-sm);
}

.download-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-xl);
}

.download .btn-primary {
    background-color: white;
    color: var(--color-accent-dark);
}

.download .btn-primary:hover {
    background-color: var(--color-bg);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    padding: var(--space-xl) var(--space-lg);
    background-color: var(--color-text);
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.footer-logo {
    font-size: 1.5rem;
    color: var(--color-accent-light);
}

.footer-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: white;
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* ==========================================================================
   Privacy Policy Page
   ========================================================================== */

.page-privacy {
    background-color: var(--color-bg);
}

.privacy-content {
    padding-top: 100px;
    padding-bottom: var(--space-3xl);
}

.privacy-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.privacy-header {
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-card);
}

.privacy-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.privacy-updated {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.privacy-body {
    line-height: 1.8;
}

.privacy-section {
    margin-bottom: var(--space-xl);
}

.privacy-section h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.privacy-section p {
    margin-bottom: var(--space-md);
    color: var(--color-text-muted);
}

.privacy-section ul {
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
}

.privacy-section li {
    margin-bottom: var(--space-xs);
    color: var(--color-text-muted);
}

.privacy-section a {
    color: var(--color-accent);
    text-decoration: underline;
}

.privacy-section a:hover {
    color: var(--color-accent-dark);
}

.contact-email {
    font-size: 1.2rem;
}

.contact-email a {
    color: var(--color-accent);
    font-weight: 500;
}

.privacy-footer {
    margin-top: var(--space-2xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-card);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 120px;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        min-height: 400px;
    }
    
    .hero-phone {
        max-width: 280px;
    }
    
    .benefits {
        flex-direction: column;
        text-align: center;
    }
    
    .benefits-content {
        text-align: center;
    }
    
    .benefits-list li {
        justify-content: center;
    }
}

@media (max-width: 600px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 4rem;
    }
    
    .nav {
        padding: var(--space-sm) var(--space-md);
    }
    
    .nav-title {
        font-size: 1.1rem;
    }
    
    .nav-cta {
        padding: var(--space-xs) var(--space-sm);
        font-size: 0.85rem;
    }
    
    .hero-phone {
        max-width: 240px;
    }
    
    .btn {
        padding: var(--space-sm) var(--space-md);
    }
    
    .screenshots-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--space-sm);
    }
}

@media (max-width: 400px) {
    .screenshots-gallery {
        grid-template-columns: 1fr;
    }
}