/* McDonald's Brand Colors */
:root {
    --mcd-red: #DA291C;
    --mcd-red-dark: #B71C1C;
    --mcd-yellow: #FFC72C;
    --mcd-yellow-light: #FFD54F;
    --mcd-gold: #FDB913;
    --mcd-black: #27251F;
    --mcd-gray: #6B6B6B;
    --mcd-light-gray: #F5F5F5;
    --mcd-white: #FFFFFF;

    --shadow-sm: 0 2px 8px rgba(39, 37, 31, 0.08);
    --shadow-md: 0 4px 20px rgba(39, 37, 31, 0.12);
    --shadow-lg: 0 8px 40px rgba(39, 37, 31, 0.16);

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--mcd-black);
    background: var(--mcd-white);
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 40px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
    color: var(--mcd-gray);
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 100px 40px 60px;
    background: linear-gradient(135deg, var(--mcd-yellow) 0%, var(--mcd-yellow-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(218, 41, 28, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--mcd-red);
    color: var(--mcd-white);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    color: var(--mcd-black);
    margin-bottom: 20px;
}

.hero h1 .highlight {
    color: var(--mcd-red);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--mcd-gray);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--mcd-red);
}

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

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    background: var(--mcd-red);
    color: var(--mcd-white);
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(218, 41, 28, 0.3);
}

.cta-button:hover {
    background: var(--mcd-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(218, 41, 28, 0.4);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
}

.phone-mockup {
    width: 280px;
    background: var(--mcd-black);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-lg);
    transform: rotate(5deg);
    animation: float 6s ease-in-out infinite;
}

.phone-mockup img {
    border-radius: 32px;
}

@keyframes float {
    0%, 100% { transform: rotate(5deg) translateY(0); }
    50% { transform: rotate(5deg) translateY(-20px); }
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-white { background: var(--mcd-white); }
.section-yellow { background: var(--mcd-yellow); }
.section-dark { background: var(--mcd-black); color: var(--mcd-white); }
.section-red { background: var(--mcd-red); color: var(--mcd-white); }

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

.section-header.light h2 { color: var(--mcd-white); }

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--mcd-red);
    color: var(--mcd-white);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-tag.dark {
    background: var(--mcd-black);
}

.section-tag.light {
    background: rgba(255, 255, 255, 0.2);
}

/* Vision Card */
.vision-card {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 40px;
    background: linear-gradient(135deg, var(--mcd-yellow) 0%, var(--mcd-yellow-light) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: 60px;
}

.vision-icon {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--mcd-white);
    border-radius: 50%;
}

.vision-content h3 {
    margin-bottom: 12px;
    color: var(--mcd-black);
}

.vision-content p {
    color: var(--mcd-gray);
    font-size: 1.1rem;
}

/* Key Findings */
.key-findings h3 {
    margin-bottom: 24px;
}

.findings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.finding-card {
    padding: 24px;
    background: var(--mcd-light-gray);
    border-radius: var(--radius-md);
    border-left: 4px solid;
}

.finding-card.positive { border-color: #4CAF50; }
.finding-card.neutral { border-color: var(--mcd-yellow); }
.finding-card.opportunity { border-color: var(--mcd-red); }

.finding-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 12px;
}

.finding-card h4 {
    margin-bottom: 8px;
}

.finding-card p {
    color: var(--mcd-gray);
    font-size: 0.95rem;
}

/* Strengths Showcase */
.strengths-showcase {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.strength-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    align-items: center;
}

.strength-item.reverse {
    grid-template-columns: 1fr 300px;
}

.strength-item.reverse .strength-visual {
    order: 2;
}

.strength-visual {
    background: var(--mcd-black);
    border-radius: var(--radius-lg);
    padding: 12px;
    box-shadow: var(--shadow-lg);
}

.strength-visual img {
    border-radius: var(--radius-md);
}

.strength-number {
    display: inline-block;
    font-size: 4rem;
    font-weight: 700;
    color: var(--mcd-red);
    opacity: 0.2;
    line-height: 1;
    margin-bottom: 8px;
}

.strength-content h3 {
    margin-bottom: 20px;
    color: var(--mcd-black);
}

.strength-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.strength-list li {
    padding: 12px 16px;
    background: var(--mcd-white);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.strength-list li strong {
    color: var(--mcd-red);
}

/* Comparison Section */
.comparison-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
    color: rgba(255, 255, 255, 0.8);
}

.comparison-table-wrapper {
    overflow-x: auto;
    margin-bottom: 80px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--mcd-white);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--mcd-light-gray);
    color: var(--mcd-black);
}

.comparison-table th {
    background: var(--mcd-light-gray);
    font-weight: 600;
    vertical-align: bottom;
}

.comparison-table th span {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.comparison-table th small {
    font-weight: 400;
    color: var(--mcd-gray);
}

.table-app-preview {
    width: 60px;
    height: auto;
    border-radius: 8px;
    margin-bottom: 8px;
}

.highlight-col {
    background: rgba(255, 199, 44, 0.15) !important;
}

.comparison-table tbody tr:hover {
    background: var(--mcd-light-gray);
}

/* Visual Comparison */
.visual-comparison h3 {
    text-align: center;
    margin-bottom: 40px;
}

.comparison-phones {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.phone-compare {
    text-align: center;
}

.phone-label {
    display: inline-block;
    padding: 6px 16px;
    background: var(--mcd-yellow);
    color: var(--mcd-black);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.phone-frame {
    width: 200px;
    background: var(--mcd-white);
    border-radius: 24px;
    padding: 8px;
    box-shadow: var(--shadow-md);
}

.phone-frame img {
    border-radius: 18px;
}

.phone-caption {
    margin-top: 12px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* Opportunities Grid */
.opportunities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.opportunity-card {
    background: var(--mcd-white);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.opportunity-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.opp-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.opp-category {
    padding: 4px 12px;
    background: var(--mcd-light-gray);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.opp-impact {
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.opp-impact.high {
    background: rgba(218, 41, 28, 0.1);
    color: var(--mcd-red);
}

.opp-impact.medium {
    background: rgba(255, 199, 44, 0.3);
    color: var(--mcd-black);
}

.opportunity-card h3 {
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.opp-current, .opp-suggestion {
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.opp-current {
    background: #FFF3E0;
}

.opp-suggestion {
    background: #E8F5E9;
}

.opp-visual {
    margin: 16px 0;
}

.opp-visual img {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.opp-metrics {
    padding: 12px;
    background: var(--mcd-yellow);
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-align: center;
}

/* Recommendations Timeline */
.recommendations-timeline {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.timeline-phase {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.phase-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.phase-number {
    padding: 8px 20px;
    background: var(--mcd-yellow);
    color: var(--mcd-black);
    border-radius: 50px;
    font-weight: 700;
}

.phase-header h3 {
    flex: 1;
}

.phase-timeline {
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 0.9rem;
}

.phase-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.rec-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
}

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

.rec-content h4 {
    margin-bottom: 8px;
}

.rec-content p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.metric-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--mcd-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.metric-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.metric-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--mcd-red);
    margin-bottom: 8px;
}

.metric-label {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.metric-desc {
    color: var(--mcd-gray);
    font-size: 0.9rem;
}

/* Brand Balance */
.brand-balance {
    max-width: 900px;
    margin: 0 auto;
}

.balance-visual {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 32px;
    align-items: center;
    margin-bottom: 48px;
}

.balance-side {
    padding: 32px;
    border-radius: var(--radius-md);
}

.balance-side.brand {
    background: var(--mcd-yellow);
}

.balance-side.conversion {
    background: var(--mcd-light-gray);
}

.balance-side h4 {
    margin-bottom: 16px;
    text-align: center;
}

.balance-side ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.balance-side li {
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
}

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

.balance-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 8px;
}

.brand-message {
    text-align: center;
}

.brand-message blockquote {
    font-size: 1.3rem;
    font-style: italic;
    color: var(--mcd-gray);
    max-width: 700px;
    margin: 0 auto;
    padding: 32px;
    background: var(--mcd-light-gray);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--mcd-red);
}

.brand-message em {
    color: var(--mcd-red);
    font-style: normal;
    font-weight: 600;
}

/* Conclusion */
.conclusion {
    text-align: center;
}

.conclusion-content {
    max-width: 700px;
    margin: 0 auto;
}

.conclusion h2 {
    margin-bottom: 24px;
}

.conclusion-text {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 48px;
    opacity: 0.9;
}

.conclusion-cta {
    padding: 32px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
}

.conclusion-cta p {
    margin-bottom: 8px;
    opacity: 0.8;
}

.conclusion-cta .date {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--mcd-yellow);
}

/* Footer */
.footer {
    padding: 24px 0;
    background: var(--mcd-black);
    text-align: center;
}

.footer-content {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 120px;
    }

    .hero-visual {
        order: -1;
        margin-bottom: 40px;
    }

    .phone-mockup {
        width: 220px;
    }

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

    .nav-links {
        display: none;
    }

    .strength-item,
    .strength-item.reverse {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .strength-item.reverse .strength-visual {
        order: 0;
    }

    .strength-visual {
        max-width: 280px;
        margin: 0 auto;
    }

    .balance-visual {
        grid-template-columns: 1fr;
    }

    .balance-center {
        order: -1;
    }
}

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

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

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

    .comparison-phones {
        gap: 24px;
    }

    .phone-frame {
        width: 160px;
    }
}

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

.section-header,
.vision-card,
.finding-card,
.strength-item,
.opportunity-card,
.metric-card {
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth scroll offset for fixed nav */
section[id] {
    scroll-margin-top: 80px;
}