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

:root {
    /* Colors */
    --primary: #2563eb;          /* blue-600 */
    --primary-dark: #1d4ed8;     /* blue-700 */
    --primary-light: #60a5fa;    /* blue-400 */
    --secondary: #1d4ed8;        /* blue-700 for secondary accents */
    --accent: #60a5fa;           /* blue-400 for subtle accents */
    --success: #4CAF50;
    --danger: #F44336;
    
    /* Neutrals */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --border: #e2e8f0;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #60a5fa 100%);
    --gradient-secondary: linear-gradient(135deg, #1d4ed8 0%, #60a5fa 100%);
    /* light red */
    --gradient-tertiary: linear-gradient(135deg, #f44336 0%, #ff6b6b 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Spacing */
    --section-padding: 5rem 0;
    --container-max-width: 1200px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Buttons ===== */
.btn-primary,
.btn-secondary,
.btn-cta,
.btn-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white !important;
    font-weight: 600;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white !important;
}

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

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

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

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: calc(70px + 5rem) 0 5rem;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
    border-radius: 0;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--gradient-primary);
    top: -200px;
    right: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--gradient-secondary);
    bottom: -100px;
    left: -150px;
    animation-delay: -5s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 30px) scale(0.9); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

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

.gradient-text-2 {
    background: var(--gradient-tertiary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

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

.phone-link {
    display: block;
    text-decoration: none;
    transition: var(--transition);
}

.phone-link:hover {
    transform: scale(1.05);
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border-radius: 40px;
    padding: 15px;
    box-shadow: var(--shadow-xl);
    animation: phoneFloat 6s ease-in-out infinite;
}

@keyframes phoneFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== Section Headers ===== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* ===== Features Section ===== */
.features {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: 1.5rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* ===== Benefits Section ===== */
.benefits {
    padding: var(--section-padding);
}

.benefits-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.benefit-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-item {
    display: flex;
    gap: 1.5rem;
}

.benefit-icon {
    width: 30px;
    height: 30px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.benefit-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.benefit-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.benefits-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    height: 400px;
}

.screenshot-item {
    cursor: pointer;
    border-radius: 1rem;
    overflow: hidden;
    transition: var(--transition);
    border: 2px solid var(--border);
}

.screenshot-item:hover {
    transform: scale(1.05);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.screenshot-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    cursor: pointer;
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 0.5rem;
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 2001;
}

.close:hover {
    color: #bbb;
}

/* ===== Download Section ===== */
.download {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.download-card {
    background: var(--gradient-primary);
    padding: 4rem;
    border-radius: 2rem;
    text-align: center;
    color: white;
    box-shadow: var(--shadow-xl);
}

.download-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.download-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-download {
    background: white;
    color: var(--text-primary);
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    margin-bottom: 1.5rem;
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.download-icon {
    width: 32px;
    height: 32px;
}

.download-text {
    text-align: left;
}

.download-label {
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.7;
}

.download-store {
    font-size: 1.25rem;
    font-weight: 700;
}

.download-note {
    opacity: 0.9;
    font-size: 0.95rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand .logo {
    color: white;
}

.footer-tagline {
    margin-top: 1rem;
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.6;
    font-size: 0.875rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .benefits-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateY(-150%);
        transition: var(--transition);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .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, -7px);
    }
    
    .hero {
        padding: calc(70px + 3rem) 0 3rem;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .download-card {
        padding: 2.5rem 1.5rem;
    }
    
    .download-title {
        font-size: 1.75rem;
    }
    
    .download-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .chart-mockup {
        height: 200px;
        gap: 1rem;
    }
}