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

:root {
    /* Colors - Brand Theme from EatScan Logo */
    --primary-green: #006838;
    --dark-green: #004d28;
    --light-green: #e8f5e9;
    --accent-green: #96cf24;
    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    --bg-white: #FFFFFF;
    --bg-gray: #F9FAFB;
    --bg-dark: #111827;

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

    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

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

    /* 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: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--light-green) 0%, var(--bg-white) 100%);
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 104, 56, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero .container {
    position: relative;
    z-index: 1;
}

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

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.quick-feature {
    background: var(--bg-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--light-green);
}

.hero-trial {
    margin-top: var(--spacing-md);
    color: var(--text-gray);
    font-size: 0.95rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-xl);
}

/* Phone Mockup with Real Screenshot */
.phone-mockup {
    width: 300px;
    max-width: 100%;
    box-shadow: var(--shadow-xl);
    border-radius: 1.5rem;
    overflow: hidden;
    position: relative;
}

.hero-screenshot {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 1.5rem;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--primary-green);
    border-radius: 12px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--primary-green);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

/* ===========================
   CTA Buttons
   =========================== */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-md);
}

.cta-primary {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
    color: white;
}

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

.cta-secondary {
    background: var(--bg-white);
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

.cta-secondary:hover {
    background: var(--primary-green);
    color: white;
    transform: translateY(-2px);
}

.cta-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
}

.cta-icon {
    font-size: 1.3em;
}

/* Pulse Animation */
@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(0, 104, 56, 0.7);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(0, 104, 56, 0);
    }
}

.pulse {
    animation: pulse 2s infinite;
}

/* ===========================
   Features Section
   =========================== */
.features {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-white);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    text-align: center;
}

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

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

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.feature-description {
    color: var(--text-gray);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* ===========================
   How It Works Section
   =========================== */
.how-it-works {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(to bottom, var(--bg-white) 0%, var(--bg-gray) 100%);
}

.steps {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.step {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 2rem;
    top: 4rem;
    width: 2px;
    height: calc(100% + var(--spacing-lg));
    background: linear-gradient(to bottom, var(--primary-green) 0%, var(--light-green) 100%);
}

.step-number {
    flex-shrink: 0;
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.step-content {
    flex: 1;
    padding-top: 0.5rem;
}

.step-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.step-description {
    color: var(--text-gray);
    line-height: 1.6;
}

.cta-center {
    text-align: center;
}

/* ===========================
   Trial Section
   =========================== */
.trial-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
    color: white;
}

.trial-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.trial-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    animation: bounce 2s infinite;
}

.trial-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.trial-description {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.trial-benefits {
    list-style: none;
    text-align: left;
    max-width: 400px;
    margin: 0 auto var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
}

.trial-benefits li {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-sm);
}

.trial-benefits li:last-child {
    margin-bottom: 0;
}

.trial-content .cta-button {
    display: block;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

/* ===========================
   Testimonials Section
   =========================== */
.testimonials {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-gray);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.testimonial-avatar {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--light-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    overflow: hidden;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-content {
    flex: 1;
}

.testimonial-text {
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
}

.testimonial-author strong {
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.testimonial-author span {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===========================
   FAQ Section
   =========================== */
.faq {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-md);
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 2px solid var(--bg-gray);
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--light-green);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary-green);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary-green);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-gray);
    line-height: 1.6;
}

/* ===========================
   Final CTA Section
   =========================== */
.final-cta {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(to bottom, var(--bg-white) 0%, var(--light-green) 100%);
}

.final-cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.final-cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.final-cta-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-xl);
}

.final-cta-note {
    margin-top: var(--spacing-md);
    color: var(--text-gray);
    font-size: 0.95rem;
}

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

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

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

.footer-logo-img {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
}

.footer-tagline {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.footer-heading {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-list {
    list-style: none;
}

.footer-list li {
    margin-bottom: var(--spacing-sm);
}

.footer-list a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: 0.95rem;
}

.footer-list a:hover {
    color: var(--accent-green);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.social-link {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--accent-green);
    color: var(--bg-dark);
    transform: translateY(-2px);
}

.footer-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: var(--spacing-xl) 0;
}

.footer-bottom {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===========================
   Animations
   =========================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(16px);
    }
}

.fade-in {
    animation: fadeIn 1s ease;
}

.slide-up {
    animation: slideUp 1s ease;
}

.fade-in-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* Tablet (768px and up) */
@media (min-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1.5fr 1fr 1fr;
    }

    .phone-mockup {
        width: 340px;
    }
}

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

    .hero {
        padding: var(--spacing-2xl) 0;
    }

    .hero .container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: center;
        gap: var(--spacing-2xl);
    }

    .hero-content {
        text-align: left;
        margin-bottom: 0;
    }

    .hero-subtitle {
        margin-left: 0;
        margin-right: 0;
    }

    .hero-features-quick {
        justify-content: flex-start;
    }

    .hero-image {
        margin-top: 0;
    }

    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .section-title {
        font-size: 2.75rem;
    }
}

/* Large Desktop (1280px and up) */
@media (min-width: 1280px) {
    .hero-title {
        font-size: 4rem;
    }
}

/* ===========================
   Screenshots Gallery Section
   =========================== */
.screenshots-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(to bottom, var(--bg-gray) 0%, var(--bg-white) 100%);
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.screenshots-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.screenshot-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.screenshot-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--light-green);
}

.screenshot-img-wrapper {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--light-green) 0%, var(--bg-gray) 100%);
    padding: var(--spacing-md);
}

.screenshot-img-wrapper img {
    width: 100%;
    max-width: 280px;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-slow);
}

.screenshot-card:hover .screenshot-img-wrapper img {
    transform: scale(1.03);
}

.screenshot-info {
    padding: var(--spacing-lg);
    text-align: center;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.screenshot-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.screenshot-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.screenshot-info p {
    color: var(--text-gray);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Responsive layout for screenshots */
@media (min-width: 768px) {
    .screenshots-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }

    .screenshot-info h3 {
        font-size: 1.35rem;
    }

    .screenshot-info p {
        font-size: 1rem;
    }
}

@media (min-width: 1024px) {
    .screenshots-gallery {
        gap: var(--spacing-xl);
    }

    .screenshot-info {
        padding: var(--spacing-xl);
    }
}