/* ==========================================================================
   CaloriPal - Modern Landing Page Stylesheet
   ========================================================================== */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

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

.logo-icon {
    font-size: 2rem;
}

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

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-link:hover::after {
    width: 100%;
}

.btn-nav {
    padding: 0.5rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-nav:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

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

.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 80px;
}

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

.gradient-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #e8ecff 0%, #f0e8ff 25%, #fde8ff 50%, #e8f6ff 75%, #e0faff 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    opacity: 0.6;
}

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

.animated-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #f093fb, #f5576c);
    top: 50%;
    right: 10%;
    animation-delay: 5s;
}

.shape-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    bottom: 10%;
    left: 40%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(20px, -20px) rotate(90deg); }
    50% { transform: translate(-20px, 20px) rotate(180deg); }
    75% { transform: translate(20px, 20px) rotate(270deg); }
}

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

.hero-text {
    animation: fadeInUp 1s ease;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
}

.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 3s ease infinite;
}

@keyframes gradientFlow {
    0%, 100% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(45deg); }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.btn-hero-primary,
.btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-hero-primary {
    background: linear-gradient(135deg, var(--primary-color), #388E3C);
    color: white;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(76, 175, 80, 0.4);
}

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

.btn-hero-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

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

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* Hero Image */
.hero-image {
    position: relative;
    animation: fadeInUp 1s ease 0.3s backwards;
}

.phone-mockup {
    position: relative;
    z-index: 2;
}

.phone-frame {
    width: 320px;
    height: 640px;
    background: #1a1a1a;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    border-radius: 32px;
    overflow: hidden;
    background: white;
}

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

.floating-card {
    position: absolute;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: floatCard 3s ease-in-out infinite;
}

.floating-card .card-icon {
    font-size: 1.5rem;
}

.floating-card .card-text {
    font-weight: 600;
    color: var(--text-primary);
}

.card-1 {
    top: 25%;
    left: -20%;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    right: -10%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    left: -20%;
    animation-delay: 2s;
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--text-secondary);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 2px;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0% { top: 10px; opacity: 1; }
    100% { top: 30px; opacity: 0; }
}

/* ==========================================================================
   Section Styling
   ========================================================================== */

.features-section,
.caloripal-ai-section,
.pricing-section,
.how-it-works-section {
    padding: 120px 0;
}

@media (max-width: 768px) {
    .features-section,
    .caloripal-ai-section,
    .pricing-section,
    .how-it-works-section {
        padding: 80px 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .section-title {
        font-size: 32px;
    }

    .section-subtitle {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 28px;
    }
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.feature-card {
    padding: 40px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid transparent;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

@media (max-width: 768px) {
    .feature-card {
        padding: 24px;
        min-height: auto;
    }
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.feature-icon-wrapper {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon-wrapper {
    transform: rotate(10deg) scale(1.1);
}

.feature-icon-wrapper .feature-icon {
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================================================
   How It Works Section
   ========================================================================== */

.steps-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 4rem;
}

.step-item {
    flex: 1;
    max-width: 280px;
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.step-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), #388E3C);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 auto 1.5rem;
}

.step-content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.step-content p {
    color: var(--text-secondary);
    margin: 0;
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 800;
}

/* Video Container */
.video-container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    background: #000;
}

.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.video-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.video-info {
    padding: 2rem;
    text-align: center;
}

.video-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.video-info p {
    color: var(--text-secondary);
    margin: 0;
}

/* ==========================================================================
   Gallery Section
   ========================================================================== */

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.screenshot-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    transition: all 0.4s ease;
}

.screenshot-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.25);
}

.screenshot-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: all 0.4s ease;
}

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

.screenshot-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    padding: 2rem 1.5rem 1.5rem;
    color: white;
    transform: translateY(0);
    transition: all 0.4s ease;
}

.screenshot-overlay h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.screenshot-overlay p {
    font-size: 0.875rem;
    opacity: 0.9;
    margin: 0;
}

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

.cta-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 10s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.btn-cta-primary,
.btn-cta-secondary {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-cta-primary {
    background: white;
    color: #764ba2;
}

.btn-cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.4);
}

.btn-cta-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-cta-secondary:hover {
    background: white;
    color: #764ba2;
    transform: translateY(-3px);
}

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

.landing-footer {
    background: #1a1a1a;
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

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

.footer-col h4 {
    color: white;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

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

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .floating-card {
        display: none;
    }

    .step-arrow {
        display: none;
    }

    .steps-container {
        flex-direction: column;
    }

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .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, -6px);
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .btn-hero-primary,
    .btn-hero-secondary {
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .stat-divider {
        display: none;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .screenshots-grid {
        grid-template-columns: 1fr;
    }

    .cta-content h2 {
        font-size: 1.75rem;
    }

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

    .btn-cta-primary,
    .btn-cta-secondary {
        width: 100%;
    }

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

@media (max-width: 480px) {
    .phone-frame {
        width: 280px;
        height: 560px;
    }

    .section-badge {
        font-size: 0.75rem;
        padding: 0.4rem 1rem;
    }
}

/* ==========================================================================
   Scroll Animations
   ========================================================================== */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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

/* ==========================================================================
   CaloriPal AI Showcase Section
   ========================================================================== */

.caloripal-ai-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8f5e9 100%);
}

.ai-showcase {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 60px;
}

/* Chat Mockup */
.chat-mockup {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.chat-avatar {
    font-size: 2.5rem;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-info {
    flex: 1;
}

.chat-info h4 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.status-online {
    font-size: 0.85rem;
    opacity: 0.9;
}

.voice-indicator {
    animation: pulse 2s infinite;
}

.voice-icon {
    font-size: 1.5rem;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
}

.chat-messages {
    padding: 30px 20px;
    min-height: 520px;
    max-height: 650px;
    overflow-y: auto;
    background: #f8f9fa;
}

.message {
    margin-bottom: 15px;
    display: flex;
}

.message-bubble {
    max-width: 75%;
    padding: 12px 16px;
    border-radius: 18px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.ai-message .message-bubble {
    background: white;
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.user-message {
    justify-content: flex-end;
}

.user-message .message-bubble {
    background: var(--primary-color);
    color: white;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 8px 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-8px);
    }
}

/* AI Features Grid */
.ai-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.ai-feature {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.ai-feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.ai-feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.ai-feature h3 {
    margin: 0 0 10px 0;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.ai-feature p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */

.pricing-section {
    padding: 100px 0;
    background: white;
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin: 40px 0;
}

.toggle-option {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.discount-badge {
    display: inline-block;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: white;
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 12px;
    margin-left: 8px;
    font-weight: 700;
}

.pricing-cards {
    display: flex;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto 40px auto;
    justify-content: center;
}

.pricing-card {
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    flex: 1;
    max-width: 400px;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.pricing-featured {
    border-color: var(--primary-color);
    border-width: 3px;
    box-shadow: 0 10px 30px rgba(76, 175, 80, 0.2);
}

.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.package-name {
    font-size: 1.8rem;
    margin: 0 0 20px 0;
    color: var(--text-primary);
}

.package-price-display {
    margin: 20px 0;
}

.price-currency {
    font-size: 1.5rem;
    color: var(--text-secondary);
    vertical-align: top;
}

.price-value {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.price-period {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.trial-badge {
    background: linear-gradient(135deg, #FFE5B4, #FFD700);
    color: #8B4513;
    padding: 10px 20px;
    border-radius: 12px;
    display: inline-block;
    font-weight: 600;
    margin: 20px 0;
    font-size: 0.95rem;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 30px 0;
    text-align: left;
    flex-grow: 1;
}

.pricing-features li {
    padding: 12px 0;
    color: var(--text-primary);
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    border-bottom: 1px solid #f0f0f0;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.check-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.85rem;
}

.feature-included .check-icon {
    background: #e8f5e9;
    color: var(--success-color);
}

.feature-excluded {
    opacity: 0.5;
}

.feature-excluded .check-icon {
    background: #ffebee;
    color: var(--danger-color);
}

.feature-highlight {
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    margin: 0 -10px;
    padding: 12px 10px;
    border-radius: 10px;
    font-weight: 600;
}

.btn-pricing {
    width: 100%;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    background: var(--text-secondary);
    color: white;
    transition: all 0.3s ease;
    margin-top: auto;
}

.btn-pricing:hover {
    background: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-pricing-featured {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.btn-pricing-featured:hover {
    background: linear-gradient(135deg, var(--primary-dark), #2e7d32);
}

.pricing-note {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
}

.pricing-note p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* CTA Button Subtitle */
.btn-subtitle {
    display: block;
    font-size: 0.8rem;
    font-weight: 400;
    opacity: 0.9;
    margin-top: 4px;
}

/* ==========================================================================
   Responsive - CaloriPal AI & Pricing
   ========================================================================== */

@media (max-width: 1024px) {
    .ai-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .chat-mockup {
        max-width: 100%;
    }

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

@media (max-width: 768px) {
    .caloripal-ai-section,
    .pricing-section {
        padding: 60px 0;
    }

    .ai-features {
        grid-template-columns: 1fr;
    }

    .pricing-cards {
        flex-direction: column;
        gap: 30px;
    }

    .pricing-card {
        max-width: 100%;
    }

    .price-value {
        font-size: 3rem;
    }
}

@media (max-width: 480px) {
    .chat-messages {
        min-height: 390px;
        max-height: 500px;
        padding: 25px 20px;
    }

    .message-bubble {
        font-size: 0.9rem;
        max-width: 85%;
    }

    .pricing-toggle {
        flex-wrap: wrap;
        gap: 15px;
    }

    .btn-pricing {
        font-size: 1rem;
        padding: 12px 24px;
    }
}

/* ==========================================================================
   Highlighted Features (3 Large Cards)
   ========================================================================== */

.features-grid-highlight {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card-highlight {
    padding: 48px 32px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    text-align: center;
}

.feature-card-highlight:hover {
    transform: translateY(-12px);
    box-shadow: 0 16px 50px rgba(102, 126, 234, 0.25);
    border-color: #667eea;
}

.feature-icon-wrapper-large {
    width: 96px;
    height: 96px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: all 0.4s ease;
}

.feature-card-highlight:hover .feature-icon-wrapper-large {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 24px rgba(102, 126, 234, 0.4);
}

.feature-icon-large {
    font-size: 3.5rem;
}

.feature-card-highlight h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
    line-height: 1.3;
}

.feature-card-highlight p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

@media (max-width: 1024px) {
    .features-grid-highlight {
        grid-template-columns: 1fr;
        gap: 32px;
        max-width: 600px;
    }

    .feature-card-highlight {
        padding: 40px 28px;
    }
}

@media (max-width: 640px) {
    .feature-card-highlight {
        padding: 32px 24px;
    }

    .feature-icon-large {
        font-size: 3rem;
    }

    .feature-card-highlight h3 {
        font-size: 1.5rem;
    }

    .feature-card-highlight p {
        font-size: 1rem;
    }
}

/* ==========================================================================
   Centered Pricing Toggle (Like Register Page)
   ========================================================================== */

.pricing-toggle-centered {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin: 32px auto 48px;
}

.toggle-option-centered {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.toggle-option-centered.active {
    color: var(--primary-color);
}

.switch-centered {
    position: relative;
    display: inline-block;
    width: 56px;
    height: 30px;
}

.switch-centered input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider-centered {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 30px;
}

.slider-centered:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

.switch-centered input:checked + .slider-centered {
    background-color: #667eea;
}

.switch-centered input:checked + .slider-centered:before {
    transform: translateX(26px);
}

@media (max-width: 480px) {
    .pricing-toggle-centered {
        gap: 12px;
    }

    .toggle-option-centered {
        font-size: 0.95rem;
    }
}