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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Mulish', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #111;
    background: #fff;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: 20px 0;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo-text {
    font-size: 20px;
    font-weight: 600;
    color: #111;
}

.nav-link.cta-btn {
    background: #111;
    color: #fff;
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.2s;
}

.nav-link.cta-btn:hover {
    transform: translateY(-2px);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    padding: 140px 0 100px;
    text-align: center;
    background: linear-gradient(180deg, #fff 0%, #f8f9fa 100%);
}

.hero-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-title {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 20px;
    color: #666;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-description strong {
    color: #111;
    font-weight: 600;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    font-size: 16px;
}

.btn-primary {
    background: #111;
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cta-subtext {
    font-size: 14px;
    color: #999;
    margin-top: 8px;
}

/* ===========================
   Benefits Section
   =========================== */
.benefits-section {
    padding: 100px 0;
    background: #fff;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.benefit-card {
    text-align: center;
}

.benefit-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    color: #667eea;
}

.benefit-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    font-weight: 600;
}

.benefit-card p {
    color: #666;
    line-height: 1.6;
}

/* ===========================
   Tools Section
   =========================== */
.tools-section {
    padding: 100px 0;
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 18px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.tools-tabs {
    max-width: 1100px;
    margin: 0 auto;
}

.tabs-header {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.tab-button {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: #f8f9fa;
    border: 2px solid transparent;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.tab-button svg {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.tab-button:hover {
    background: #fff;
    border-color: #e0e0e0;
    transform: translateY(-2px);
}

.tab-button.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.tab-button.active svg {
    transform: scale(1.1);
}

.tabs-content {
    position: relative;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Tools Tabs */
.tools-tabs {
    margin-top: 60px;
}

.panel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.panel-image {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.panel-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

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

.panel-text h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #111;
}

.panel-text p {
    font-size: 16px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 24px;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    color: #444;
    font-size: 15px;
    line-height: 1.6;
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: #667eea;
    font-weight: bold;
    font-size: 18px;
}

/* Mobile Responsive for Tools Section */
@media (max-width: 768px) {
    .panel-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .panel-text h3 {
        font-size: 24px;
    }

    .panel-image {
        max-width: 100%;
        margin: 0 auto;
    }

    .tabs-header {
        gap: 8px;
        margin-bottom: 40px;
    }

    .tab-button {
        padding: 10px 16px;
        font-size: 14px;
    }
}

/* ===========================
   Transcription Section
   =========================== */
.transcription-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #fff 0%, #f8f9fa 100%);
}

.transcription-section .section-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.transcription-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-top: 60px;
}

.transcription-image {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
    background: #fff;
}

.transcription-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.transcription-image:hover img {
    transform: scale(1.02);
}

.transcription-content h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #111;
    letter-spacing: -0.02em;
}

.feature-description {
    font-size: 18px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 40px;
}

.benefits-grid-small {
    display: grid;
    gap: 24px;
    margin-bottom: 40px;
}

.benefits-grid-small .benefit-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: white;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.benefits-grid-small .benefit-item:hover {
    border-color: #667eea;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.15);
    transform: translateY(-2px);
}

.benefit-icon-small {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    color: white;
}

.benefit-icon-small svg {
    width: 24px;
    height: 24px;
}

.benefits-grid-small .benefit-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: #111;
}

.benefits-grid-small .benefit-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
    margin: 0;
}

.transcription-cta {
    padding: 24px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.highlight-text {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    font-weight: 600;
    color: #111;
    margin: 0;
}

.highlight-text svg {
    color: #667eea;
    flex-shrink: 0;
}

/* Mobile Responsive for Transcription Section */
@media (max-width: 768px) {
    .transcription-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .transcription-content h3 {
        font-size: 24px;
    }

    .feature-description {
        font-size: 16px;
    }

    .benefits-grid-small .benefit-item {
        padding: 16px;
    }
}

/* ===========================
   Exam Analysis Section
   =========================== */
.exam-analysis-section {
    padding: 100px 0;
    background: #fff;
}

.exam-analysis-section .section-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.exam-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-top: 60px;
}

.exam-image {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
    background: #fff;
}

.exam-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.exam-image:hover img {
    transform: scale(1.02);
}

.exam-content h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #111;
    letter-spacing: -0.02em;
}

.exam-cta {
    padding: 24px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

/* Mobile Responsive for Exam Analysis Section */
@media (max-width: 768px) {
    .exam-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .exam-content h3 {
        font-size: 24px;
    }
}

/* ===========================
   Diet Calculation Section
   =========================== */
.diet-calculation-section {
    padding: 100px 0;
    background: #fff;
}

.diet-calculation-section .section-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.diet-showcase {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
    margin-top: 60px;
}

.diet-content {
    order: 1;
}

.diet-image-large {
    order: 2;
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.2);
    background: #fff;
    cursor: pointer;
}

.diet-image-large::after {
    content: '🔍';
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.diet-image-large:hover::after {
    opacity: 1;
}

.diet-image-large img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.diet-image-large:hover img {
    transform: scale(1.03);
}

.diet-content h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #111;
    letter-spacing: -0.02em;
}

.diet-methods {
    display: grid;
    gap: 16px;
    margin-bottom: 32px;
}

.method-card {
    display: flex;
    gap: 16px;
    align-items: center;
    padding: 16px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-radius: 12px;
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
}

.method-card:hover {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    transform: translateX(4px);
}

.method-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    color: white;
}

.method-icon svg {
    width: 24px;
    height: 24px;
}

.method-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 2px;
    color: #111;
}

.method-card p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

.diet-features-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.feature-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: #444;
}

.feature-row svg {
    color: #667eea;
    flex-shrink: 0;
}

.diet-differential {
    padding: 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    color: white;
    position: relative;
    overflow: hidden;
}

.diet-differential::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%);
}

.differential-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 16px;
    position: relative;
}

.differential-badge svg {
    width: 16px;
    height: 16px;
}

.diet-differential h4 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: white;
    position: relative;
}

.diet-differential p {
    font-size: 15px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    position: relative;
}

/* Mobile Responsive for Diet Calculation Section */
@media (max-width: 768px) {
    .diet-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .diet-content {
        order: 2;
    }

    .diet-image-large {
        order: 1;
    }

    .diet-content h3 {
        font-size: 24px;
    }

    .method-card {
        padding: 14px;
    }

    .diet-differential h4 {
        font-size: 20px;
    }
}

/* ===========================
   Social Proof
   =========================== */
.social-proof {
    padding: 80px 0;
    background: #f8f9fa;
}

.proof-content {
    display: flex;
    justify-content: center;
    gap: 80px;
    flex-wrap: wrap;
}

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

.proof-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: #111;
    margin-bottom: 8px;
}

.proof-label {
    font-size: 14px;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===========================
   CTA Section
   =========================== */
.cta-section {
    padding: 100px 0;
    background: #fff;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(28px, 4vw, 40px);
    margin-bottom: 40px;
    font-weight: 700;
}

.cta-description {
    font-size: 18px;
    color: #666;
    margin-bottom: 32px;
    line-height: 1.5;
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

.cta-note {
    margin-top: 24px;
    font-size: 15px;
    color: #666;
    font-weight: 500;
}

/* ===========================
   Footer
   =========================== */
.footer {
    padding: 40px 0;
    background: #f8f9fa;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-content p {
    color: #666;
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #111;
}

/* ===========================
   App Section
   =========================== */
.app-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.app-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.app-section .section-header {
    text-align: center;
    margin-bottom: 60px;
    color: white;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.app-section .section-title {
    color: white;
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 16px;
}

.app-section .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
}

.app-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.app-features {
    display: grid;
    gap: 24px;
}

.app-feature {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.app-feature:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(8px);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-content h4 {
    color: white;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
}

.feature-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    line-height: 1.5;
}

.app-download {
    margin-top: 48px;
    padding: 32px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.app-download h3 {
    color: white;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.app-download p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
}

.store-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.store-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: #000;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.store-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.store-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.store-label {
    font-size: 11px;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.store-name {
    font-size: 18px;
    font-weight: 600;
}

.app-mockups {
    display: flex;
    gap: 20px;
    justify-content: center;
    position: relative;
}

.phone-frame-app {
    width: 320px;
    height: 680px;
    background: #1a1a1a;
    border-radius: 40px;
    padding: 8px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
    position: relative;
    margin: 0 auto;
}

.phone-frame-app .phone-notch {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 24px;
    background: #1a1a1a;
    border-radius: 0 0 12px 12px;
    z-index: 10;
}

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

.app-screen-panel {
    position: absolute;
    top: 40px;
    left: 0;
    width: 100%;
    height: calc(100% - 40px);
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.app-screen-panel.active {
    opacity: 1;
}

.app-screen-panel img {
    width: 100%;
    height: auto;
    max-height: 100%;
    object-fit: contain;
    object-position: top center;
    background: white;
}

@media (max-width: 968px) {
    .app-showcase {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .app-mockups {
        transform: scale(0.8);
        margin: -40px 0;
    }

    .phone-mockup {
        width: 240px;
        height: 490px;
    }
}

@media (max-width: 640px) {
    .app-section {
        padding: 60px 0;
    }

    .app-features {
        gap: 16px;
    }

    .app-feature {
        padding: 16px;
    }

    .feature-icon {
        width: 40px;
        height: 40px;
    }

    .app-mockups {
        flex-direction: column;
        align-items: center;
        gap: -60px;
        transform: scale(0.7);
    }

    .phone-frame-app {
        height: 600px;
        width: 280px;
    }

    .mockup-1, .mockup-3 {
        display: none;
    }

    .mockup-2 {
        transform: scale(1);
    }

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

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

/* ===========================
   Calculator Section
   =========================== */
.calculator-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.calculator-container {
    max-width: 900px;
    margin: 0 auto;
}

.calculator-input-area {
    text-align: center;
    margin-bottom: 60px;
    padding: 40px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.calculator-input-area label {
    display: block;
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.calculator-input-area label strong {
    color: #667eea;
}

.input-note {
    font-size: 14px;
    color: #666;
    margin-bottom: 24px;
    font-style: italic;
}

.input-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

#patients-input {
    width: 120px;
    padding: 16px;
    font-size: 28px;
    font-weight: 700;
    color: #667eea;
    text-align: center;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    transition: all 0.3s ease;
}

#patients-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.input-suffix {
    font-size: 16px;
    color: #666;
    font-weight: 500;
}

.slider {
    width: 100%;
    max-width: 400px;
    height: 6px;
    border-radius: 3px;
    background: #e0e0e0;
    outline: none;
    -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}

.comparison-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 40px;
}

.comparison-card {
    padding: 32px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.simplediet-card {
    border: 2px solid #667eea;
    position: relative;
}

.simplediet-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.03;
    border-radius: 14px;
}

.comparison-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.card-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: #333;
}

.badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.badge-gray {
    background: #e0e0e0;
    color: #666;
}

.price-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 32px;
    padding: 24px;
    background: #f8f9fa;
    border-radius: 12px;
}

.currency {
    font-size: 20px;
    color: #666;
    margin-right: 4px;
}

.price-value {
    font-size: 42px;
    font-weight: 700;
    color: #333;
}

.simplediet-card .price-value {
    color: #667eea;
}

.price-period {
    font-size: 16px;
    color: #999;
    margin-left: 8px;
}

.benefits-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.benefits-list li {
    padding: 12px 0;
    color: #666;
    font-size: 15px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #f0f0f0;
}

.benefits-list li:last-child {
    border-bottom: none;
}

.benefits-list li::before {
    content: '✓';
    margin-right: 12px;
    color: #10b981;
    font-weight: bold;
    font-size: 18px;
}

.traditional-card .benefits-list li::before {
    content: '×';
    color: #ef4444;
}

.savings-highlight {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    color: white;
}

.savings-box {
    margin-bottom: 24px;
}

.savings-label {
    display: block;
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.savings-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 12px;
}

.savings-amount .currency {
    color: white;
    font-size: 24px;
}

.savings-amount #savings-value {
    font-size: 56px;
    font-weight: 700;
    margin: 0 8px;
}

.savings-period {
    font-size: 20px;
    opacity: 0.9;
}

.savings-percentage {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    font-size: 16px;
    font-weight: 600;
}

.annual-savings {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 18px;
}

.annual-savings strong {
    font-size: 24px;
    margin-left: 8px;
}

@media (max-width: 768px) {
    .comparison-cards {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .calculator-input-area {
        padding: 24px;
    }

    .price-value {
        font-size: 32px;
    }

    .savings-amount #savings-value {
        font-size: 42px;
    }
}

/* ===========================
   FAQ Section
   =========================== */
.faq-section {
    padding: 80px 0;
    background: white;
}

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

.faq-item {
    margin-bottom: 16px;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.faq-question {
    width: 100%;
    padding: 24px;
    background: transparent;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: #333;
    text-align: left;
    transition: all 0.3s ease;
}

.faq-question:hover {
    color: #667eea;
}

.faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: #667eea;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 24px 24px 24px;
    max-height: 500px;
}

.faq-answer p {
    color: #666;
    line-height: 1.6;
    font-size: 15px;
}

.faq-answer strong {
    color: #667eea;
    font-weight: 600;
}

@media (max-width: 640px) {
    .faq-question {
        padding: 20px;
        font-size: 16px;
    }

    .faq-answer {
        padding: 0 20px;
    }

    .faq-item.active .faq-answer {
        padding: 0 20px 20px 20px;
    }
}

/* ===========================
   WhatsApp Modal
   =========================== */
.whatsapp-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
}

.whatsapp-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.whatsapp-modal .modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    animation: fadeIn 0.3s ease;
}

.whatsapp-modal .modal-dialog {
    position: relative;
    background: white;
    border-radius: 16px;
    padding: 40px;
    max-width: 450px;
    width: 90%;
    z-index: 1;
    animation: slideUp 0.3s ease;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

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

.whatsapp-modal .modal-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    color: #666;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s;
}

.whatsapp-modal .modal-close-btn:hover {
    background: #f5f5f5;
    color: #333;
}

.whatsapp-modal .modal-body {
    text-align: center;
}

.whatsapp-modal .modal-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    border-radius: 50%;
    margin-bottom: 24px;
    color: white;
}

.whatsapp-modal .modal-body h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #111;
}

.whatsapp-modal .modal-body p {
    font-size: 16px;
    color: #666;
    margin-bottom: 32px;
    line-height: 1.5;
}

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: #25d366;
    color: white;
    padding: 14px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.whatsapp-btn:hover {
    background: #128c7e;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

/* ===========================
   Image Modal
   =========================== */
.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

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

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    z-index: 1;
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-image {
    max-width: 100%;
    max-height: 85vh;
    width: auto;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-caption {
    text-align: center;
    color: #fff;
    padding: 15px;
    font-size: 16px;
    font-weight: 500;
}

.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

/* Zoom cursor indication */
.panel-image img {
    cursor: zoom-in;
}

/* Mobile adjustments for modal */
@media (max-width: 768px) {
    .modal-content {
        max-width: 95vw;
    }

    .modal-close {
        top: 10px;
        right: 10px;
        background: rgba(0, 0, 0, 0.7);
    }

    .modal-caption {
        font-size: 14px;
        padding: 10px;
    }
}

/* ===========================
   Mobile Responsive
   =========================== */
@media (max-width: 768px) {
    .hero {
        padding: 120px 0 80px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-description {
        font-size: 18px;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .proof-content {
        gap: 40px;
    }

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

    .email-input {
        width: 100%;
    }

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

/* ===========================
   WhatsApp Floating Button
   =========================== */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
    background: #20BA5A;
}

.whatsapp-float:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
    }

    .whatsapp-float svg {
        width: 28px;
        height: 28px;
    }
}

/* ===========================
   Pricing Section
   =========================== */
.pricing-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
    margin-bottom: 40px;
}

.pricing-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    padding: 40px 32px;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.pricing-card-featured {
    border-color: #6366f1;
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.15);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.pricing-header {
    text-align: center;
    margin-bottom: 24px;
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111;
    margin-bottom: 8px;
}

.pricing-subtitle {
    color: #64748b;
    font-size: 0.95rem;
}

.pricing-price {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 2px solid #f1f5f9;
}

.price-currency {
    font-size: 1.25rem;
    color: #64748b;
    vertical-align: top;
    font-weight: 600;
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: #111;
}

.price-period {
    font-size: 1rem;
    color: #64748b;
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    color: #334155;
    font-size: 0.95rem;
}

.pricing-features li svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: #10b981;
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 14px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-outline {
    border: 2px solid #e2e8f0;
    color: #111;
    background: white;
}

.btn-outline:hover {
    border-color: #111;
    background: #f8f9fa;
}

.pricing-note {
    text-align: center;
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 12px;
    padding: 20px;
    max-width: 700px;
    margin: 0 auto;
}

.pricing-note p {
    margin: 0;
    color: #856404;
    font-size: 0.95rem;
}

/* ===========================
   Pricing Models (creditos.html)
   =========================== */
.pricing-models-section {
    padding: 80px 0;
    background: white;
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
    margin-bottom: 40px;
}

.model-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    padding: 40px 32px;
    position: relative;
}

.model-card-featured {
    border-color: #6366f1;
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.15);
}

.model-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.model-icon {
    text-align: center;
    margin-bottom: 20px;
    color: #6366f1;
}

.model-card h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #111;
    text-align: center;
    margin-bottom: 16px;
}

.model-price {
    text-align: center;
    font-size: 2.25rem;
    font-weight: 700;
    color: #6366f1;
    margin-bottom: 16px;
}

.model-price span {
    font-size: 1rem;
    color: #64748b;
    font-weight: 500;
}

.model-description {
    text-align: center;
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 24px;
}

.model-features {
    margin-bottom: 24px;
}

.model-features h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #111;
    margin-bottom: 12px;
}

.model-features ul {
    list-style: none;
    padding-left: 0;
}

.model-features li {
    padding: 8px 0;
    color: #334155;
    font-size: 0.9rem;
}

.model-best-for {
    background: #f8f9fa;
    padding: 16px;
    border-radius: 8px;
    text-align: center;
    font-size: 0.9rem;
    color: #334155;
}

.comparison-tip {
    display: flex;
    gap: 20px;
    background: #f0f9ff;
    border: 2px solid #3b82f6;
    border-radius: 12px;
    padding: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.tip-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.tip-content strong {
    display: block;
    margin-bottom: 8px;
    color: #111;
}

.tip-content p {
    margin: 0;
    color: #334155;
    line-height: 1.6;
}

/* ===========================
   Calculator Updates
   =========================== */
.comparison-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.unlimited-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.unlimited-card .card-header h3,
.unlimited-card .price-display,
.unlimited-card .benefits-list,
.unlimited-card .benefits-list li,
.unlimited-card .price-display .currency,
.unlimited-card .price-display .price-value,
.unlimited-card .price-display .price-period {
    color: white !important;
}

.unlimited-card .price-display {
    background: transparent !important;
}

.unlimited-card .badge {
    background: rgba(255, 255, 255, 0.3);
    color: white;
}

.savings-comparison {
    margin-top: 16px;
}

.comparison-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: center;
}

.comparison-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.comparison-value {
    font-size: 1.1rem;
}

#best-plan-name {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 768px) {
    .pricing-cards,
    .models-grid,
    .comparison-cards {
        grid-template-columns: 1fr;
    }

    .pricing-card-featured {
        order: -1;
    }

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

    .price-amount {
        font-size: 2.5rem;
    }

    .model-price {
        font-size: 1.75rem;
    }
}

/* ===========================
   Image Lightbox Modal
   =========================== */
.image-lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.image-lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 95%;
    max-height: 95vh;
    animation: zoomIn 0.3s ease;
}

.lightbox-content img {
    width: 100%;
    height: auto;
    max-height: 95vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .lightbox-close {
        top: 10px;
        right: 10px;
    }
}