/* ===== CSS Variables ===== */
:root {
    /* Colors - Light Theme */
    --primary-purple: #A855F7;
    --secondary-blue: #2979FF;
    --accent-pink: #FF5C8D;
    --bg-white: #FAFAFA;
    --text-primary: #2B2B2B;
    --text-secondary: #6B7280;
    --border-gray: #E5E7EB;
    --gradient-purple-pink: linear-gradient(135deg, #A855F7 0%, #FF5C8D 100%);
    --gradient-yes: linear-gradient(to right, #C084FC, #FF6EC7);
    --gradient-no: linear-gradient(to right, #FF6B6B, #FF8E53);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(250, 250, 250, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-gray);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.logo-icon {
    font-size: var(--font-size-2xl);
}

.logo-text {
    background: var(--gradient-purple-pink);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-base);
}

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

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

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--border-gray);
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 999;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== Hero Section ===== */
.hero {
    padding: calc(var(--spacing-2xl) + 73px) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, #FAFAFA 0%, #F3F4F6 50%, #E5E7EB 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 92, 141, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {

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

    33% {
        transform: translate(30px, -30px) scale(1.1);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: white;
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #10B981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient-purple-pink);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-purple-pink);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border: 2px solid var(--border-gray);
}

.btn-secondary:hover {
    border-color: var(--primary-purple);
    color: var(--primary-purple);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.stat {
    text-align: left;
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--gradient-purple-pink);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-visual {
    display: none;
}

/* ===== Phone Showcase ===== */
.phone-showcase {
    position: relative;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    animation: showcase-float 6s ease-in-out infinite;
}

@keyframes showcase-float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

.showcase-card {
    background: linear-gradient(135deg, #A855F7 0%, #FF5C8D 100%);
    border-radius: 2rem;
    padding: 1.5rem 1.5rem 2rem;
    box-shadow:
        0 25px 50px rgba(168, 85, 247, 0.25),
        0 10px 20px rgba(255, 92, 141, 0.15);
    position: relative;
    overflow: hidden;
}

.showcase-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: shimmer 8s ease-in-out infinite;
}

@keyframes shimmer {

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

    50% {
        transform: translate(-30%, -30%);
    }
}

.showcase-header {
    text-align: center;
    margin-bottom: 1.25rem;
    position: relative;
    z-index: 1;
}

.showcase-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.25rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.showcase-subtitle {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.phone-device {
    position: relative;
    z-index: 1;
}

.device-frame {
    background: linear-gradient(135deg, #1F2937 0%, #111827 100%);
    border-radius: 2.5rem;
    padding: 0.75rem;
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset,
        0 0 60px rgba(168, 85, 247, 0.3);
    transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.device-frame:hover {
    transform: scale(1.02);
    box-shadow:
        0 25px 50px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.15) inset,
        0 0 80px rgba(168, 85, 247, 0.4);
}

.device-notch {
    background: #111827;
    height: 1.5rem;
    width: 40%;
    margin: 0 auto 0.5rem;
    border-radius: 0 0 1rem 1rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.device-screen {
    background: #000;
    border-radius: 2rem;
    overflow: hidden;
    position: relative;
}

.screenshot-image {
    width: 100%;
    height: auto;
    display: block;
}

/* ===== Features Section ===== */
.features {
    padding: var(--spacing-2xl) 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(168, 85, 247, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(41, 121, 255, 0.03) 0%, transparent 50%),
        #FAFAFA;
}

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

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
}

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

.feature-card {
    padding: var(--spacing-xl);
    background: white;
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-purple-pink);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(168, 85, 247, 0.15);
    border-color: var(--primary-purple);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

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

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== How It Works Section ===== */
.how-it-works {
    padding: var(--spacing-2xl) 0;
    background:
        linear-gradient(135deg, rgba(168, 85, 247, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, #FAFAFA 0%, #F3F4F6 100%);
    position: relative;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 92, 141, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse-slow 8s ease-in-out infinite;
}

@keyframes pulse-slow {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.6;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.3;
    }
}

.steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-purple-pink);
    color: white;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    border-radius: var(--radius-full);
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.step-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== Use Cases Section ===== */
.use-cases {
    padding: var(--spacing-2xl) 0;
    background:
        radial-gradient(circle at 70% 30%, rgba(41, 121, 255, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 30% 70%, rgba(168, 85, 247, 0.04) 0%, transparent 50%),
        #FAFAFA;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.use-case {
    text-align: center;
    padding: var(--spacing-xl);
    background: white;
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
    position: relative;
}

.use-case::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    background: var(--gradient-purple-pink);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.use-case:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 24px rgba(168, 85, 247, 0.15);
    border-color: transparent;
}

.use-case:hover::after {
    opacity: 0.05;
}

.use-case>* {
    position: relative;
    z-index: 1;
}

.use-case-emoji {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.use-case h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.use-case p {
    color: var(--text-secondary);
}

/* ===== Download Section ===== */
.download {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, #A855F7 0%, #C084FC 50%, #FF5C8D 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(45deg,
            transparent,
            transparent 60px,
            rgba(255, 255, 255, 0.03) 60px,
            rgba(255, 255, 255, 0.03) 120px);
    animation: slide 20s linear infinite;
}

@keyframes slide {
    0% {
        transform: translate(0, 0);
    }

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

.download-content {
    position: relative;
    z-index: 1;
}


.download-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.download-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

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

.store-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 1rem 2rem;
    background: white;
    color: var(--text-primary);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.store-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.store-text {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    text-align: left;
}

.store-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    text-align: left;
}

/* ===== Footer ===== */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background: #1F2937;
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 700;
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    opacity: 0.9;
}

.footer-description {
    color: #9CA3AF;
    font-size: var(--font-size-sm);
}

.footer-column h4 {
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
}

.footer-column a {
    display: block;
    color: #9CA3AF;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
    transition: var(--transition-base);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #9CA3AF;
    font-size: var(--font-size-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    color: #9CA3AF;
    transition: var(--transition-base);
}

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

/* ===== Responsive Design ===== */
@media (min-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-2xl);
    }

    .hero-visual {
        display: block;
    }
}

@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-brand {
        grid-column: auto;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .step {
        flex-direction: column;
        text-align: center;
    }

    .step-number {
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        justify-content: space-between;
        gap: var(--spacing-md);
    }

    .stat {
        flex: 1;
        min-width: 0;
    }

    .stat-number {
        font-size: var(--font-size-2xl);
    }

    .download-buttons {
        flex-direction: column;
    }

    .store-button {
        width: 100%;
    }
}