/* ============================================
   LOTARA WEBSITE - CALM-INSPIRED DESIGN
   Matching iOS app's premium purple aesthetic
   ============================================ */

:root {
    /* Premium Purple Theme (from UltraPremiumDesign) */
    --purple-primary: #8b5cf6;
    --purple-deep: #7c3aed;
    --purple-light: #a78bfa;
    --purple-glow: rgba(139, 92, 246, 0.3);
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #f8f9fa;
    --gray-light: #e8e8e8;
    --gray-medium: #9ca3af;
    --gray-dark: #4b5563;
    --black: #1a1a1a;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
    
    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 999px;
    
    /* 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 32px rgba(0, 0, 0, 0.16);
    --shadow-purple: 0 8px 32px var(--purple-glow);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-system);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: var(--black);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: all 0.3s ease;
}

.nav.scrolled {
    background: linear-gradient(
        135deg,
        rgba(139, 92, 246, 0.95),
        rgba(167, 139, 250, 0.95),
        rgba(99, 102, 241, 0.95)
    );
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo-icon {
    height: 44px;
    width: 44px;
    transition: transform 0.3s ease;
    border-radius: 10px;
}

.logo-icon:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 150px;
    width: auto;
    transition: transform 0.3s ease;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

.logo-img:hover {
    transform: scale(1.05);
}

.logo {
    font-size: 28px;
    font-weight: 500;
    color: var(--purple-primary);
    font-style: italic;
    letter-spacing: -0.5px;
}

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

.nav-links a {
    font-size: 15px;
    font-weight: 400;
    color: var(--white);
    transition: all 0.2s ease;
    opacity: 0.9;
}

.nav-links a:hover {
    opacity: 1;
}

.btn-login {
    padding: 8px 16px;
}

.btn-primary {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-pill);
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--white);
    color: var(--purple-primary);
    border: 1px solid var(--white);
    transform: translateY(-1px);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xxl) var(--spacing-md);
    /* Exact match to PremiumHealthBackground from iOS app */
    background: linear-gradient(
        135deg,
        #1a1f36 0%,      /* primaryDeep - Deep navy */
        #2d3561 25%,     /* primarySoft - Soft navy */
        #748ffc 50%,     /* wisdom - Wise indigo */
        #1a1f36 100%     /* primaryDeep - Deep navy */
    );
    color: var(--white);
    overflow: hidden;
    animation: breathingGradient 20s ease-in-out infinite;
}

@keyframes breathingGradient {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(
        circle,
        rgba(99, 102, 241, 0.15) 0%,
        transparent 50%,
        rgba(139, 92, 246, 0.08) 100%
    );
    border-radius: 50%;
    animation: breathing 8s ease-in-out infinite;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(
        circle,
        rgba(167, 139, 250, 0.12) 0%,
        transparent 50%
    );
    border-radius: 50%;
    animation: breathing 10s ease-in-out infinite reverse;
    pointer-events: none;
}

@keyframes breathing {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    text-align: center;
    margin-top: 80px; /* Add spacing below navigation */
}

.hero-title {
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 22px);
    font-weight: 300;
    line-height: 1.6;
    opacity: 0.95;
    margin-bottom: var(--spacing-xxl);
}

.hero-question {
    font-size: 20px;
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

/* ============================================
   ACTION BUTTONS (Calm-style pills)
   ============================================ */

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: 0 auto;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 18px 24px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-pill);
    color: var(--gray-dark);
    font-size: 17px;
    font-weight: 400;
    text-align: left;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.action-btn:hover {
    background: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.action-btn:active {
    transform: translateY(0);
}

.action-icon {
    width: 24px;
    height: 24px;
    color: var(--purple-primary);
    flex-shrink: 0;
}

/* ============================================
   FEATURES SECTION
   ============================================ */

.features {
    position: relative;
    padding: var(--spacing-xxl) var(--spacing-md);
    /* Exact match to PremiumHealthBackground from iOS app */
    background: linear-gradient(
        135deg,
        #1a1f36 0%,
        #2d3561 25%,
        #748ffc 50%,
        #1a1f36 100%
    );
    background-size: 200% 200%;
    animation: breathingGradient 20s ease-in-out infinite;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(
        circle,
        rgba(167, 139, 250, 0.12) 0%,
        transparent 50%
    );
    border-radius: 50%;
    animation: breathing 10s ease-in-out infinite;
    pointer-events: none;
}

.features::after {
    content: '';
    position: absolute;
    bottom: -20%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(
        circle,
        rgba(99, 102, 241, 0.1) 0%,
        transparent 50%
    );
    border-radius: 50%;
    animation: breathing 12s ease-in-out infinite reverse;
    pointer-events: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: clamp(36px, 5vw, 48px);
    font-weight: 300;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--white);
    letter-spacing: -0.5px;
}

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

.feature-card {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--spacing-md);
    padding: 12px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.journal-icon {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(167, 139, 250, 0.15));
    color: var(--purple-primary);
}

.meditation-icon {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(129, 140, 248, 0.15));
    color: #6366f1;
}

.habits-icon {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(74, 222, 128, 0.15));
    color: #22c55e;
}

.mood-icon {
    background: linear-gradient(135deg, rgba(251, 146, 60, 0.15), rgba(253, 186, 116, 0.15));
    color: #fb923c;
}

.health-icon {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(248, 113, 113, 0.15));
    color: #ef4444;
}

.analytics-icon {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(192, 132, 252, 0.15));
    color: #a855f7;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--white);
}

.feature-card p {
    font-size: 16px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}

/* ============================================
   DOWNLOAD SECTION
   ============================================ */

.download {
    position: relative;
    padding: var(--spacing-xxl) var(--spacing-md);
    /* Exact match to PremiumHealthBackground from iOS app */
    background: linear-gradient(
        135deg,
        #1a1f36 0%,
        #2d3561 25%,
        #748ffc 50%,
        #1a1f36 100%
    );
    background-size: 200% 200%;
    animation: breathingGradient 20s ease-in-out infinite;
    color: var(--white);
    text-align: center;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(
        circle,
        rgba(167, 139, 250, 0.15) 0%,
        transparent 70%
    );
    border-radius: 50%;
    animation: breathing 15s ease-in-out infinite;
    pointer-events: none;
}

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

.download-subtitle {
    font-size: 20px;
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.app-store-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    background: var(--black);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: all 0.3s ease;
}

.app-store-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.store-text {
    font-size: 11px;
    opacity: 0.8;
}

.store-name {
    font-size: 18px;
    font-weight: 500;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--black);
    color: var(--white);
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    height: 70px;
    width: auto;
    margin-bottom: var(--spacing-sm);
}

.footer-icon {
    height: 60px;
    width: 60px;
    margin-bottom: var(--spacing-sm);
    border-radius: 12px;
}

.footer-brand p {
    margin-top: var(--spacing-sm);
    opacity: 0.7;
    font-weight: 300;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.6;
}

.footer-column a {
    display: block;
    margin-bottom: 8px;
    opacity: 0.8;
    font-size: 15px;
    font-weight: 300;
    transition: opacity 0.2s ease;
}

.footer-column a:hover {
    opacity: 1;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.6;
    font-size: 14px;
    font-weight: 300;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .nav-links a {
        font-size: 14px;
    }
    
    .btn-primary {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    .hero {
        padding: var(--spacing-xl) var(--spacing-md);
        background-attachment: scroll;
    }
    
    .action-btn {
        padding: 16px 20px;
        font-size: 16px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .logo {
        font-size: 24px;
    }
    
    .nav-links a:not(.btn-primary) {
        display: none;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

.hero-content > * {
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.hero-title {
    animation-delay: 0.1s;
}

.hero-subtitle {
    animation-delay: 0.2s;
}

.hero-question {
    animation-delay: 0.3s;
}

.action-buttons {
    animation-delay: 0.4s;
}

.action-btn {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.action-btn:nth-child(1) { animation-delay: 0.5s; }
.action-btn:nth-child(2) { animation-delay: 0.6s; }
.action-btn:nth-child(3) { animation-delay: 0.7s; }
.action-btn:nth-child(4) { animation-delay: 0.8s; }
.action-btn:nth-child(5) { animation-delay: 0.9s; }