/* ===================================
   DESIGN SYSTEM - CSS VARIABLES
   =================================== */
:root {
    /* Colors - Safety Aesthetic */
    --color-white: #ffffff;
    --color-black: #1a1a1a;
    --color-gray: #6b7280;
    --color-light-gray: #f3f4f6;
    
    /* Alert Colors */
    --color-danger: #dc2626;
    --color-danger-light: #fee2e2;
    
    /* Trust Colors */
    --color-safe: #10b981;
    --color-safe-light: #d1fae5;
    --color-trust: #3b82f6;
    
    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ===================================
   LAYOUT
   =================================== */
.container {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

section {
    padding: var(--spacing-xl) 0;
}

/* ===================================
   TYPOGRAPHY
   =================================== */
h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

.section-title {
    font-size: 24px;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-light-gray) 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero-headline {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.hero-headline .highlight {
    color: var(--color-trust);
    display: block;
    margin-top: var(--spacing-xs);
}

.hero-subheadline {
    font-size: 16px;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.hero-subheadline strong {
    color: var(--color-black);
    font-weight: 600;
}

.hero-proof {
    margin: var(--spacing-md) auto;
    max-width: 320px;
}

.proof-card {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ===================================
   CTA BUTTONS
   =================================== */
.cta-primary {
    display: inline-block;
    background-color: var(--color-danger);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    text-decoration: none;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
    min-height: 44px;
    line-height: 1.2;
}

.cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(220, 38, 38, 0.4);
}

.cta-primary:active {
    transform: translateY(0);
}

.cta-primary.large {
    font-size: 18px;
    padding: 20px 32px;
}

.cta-secondary {
    font-size: 13px;
    color: var(--color-gray);
    margin-top: var(--spacing-sm);
}

/* ===================================
   HOW IT WORKS SECTION
   =================================== */
.how-it-works {
    background-color: var(--color-white);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.step {
    text-align: center;
}

.step-icon {
    margin: 0 auto var(--spacing-sm);
    width: 60px;
    height: 60px;
}

.step-icon.alert {
    background-color: var(--color-danger-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-black);
}

.step-alert {
    background-color: var(--color-danger-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-danger);
}

.step-result {
    margin-top: var(--spacing-sm);
}

.result-label {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.alert-box {
    background-color: var(--color-white);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 14px;
    line-height: 1.5;
}

.alert-box strong {
    color: var(--color-danger);
    font-size: 16px;
    display: block;
    margin-bottom: 4px;
}

.reported {
    font-size: 12px;
    color: var(--color-gray);
}

/* ===================================
   PAIN SECTION
   =================================== */
.pain {
    background-color: var(--color-light-gray);
}

.pain-points {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.pain-points li {
    font-size: 16px;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    background-color: var(--color-white);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--color-danger);
}

.pain-points strong {
    color: var(--color-danger);
    font-weight: 600;
}

.loss-highlight {
    background-color: var(--color-danger);
    color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
}

.loss-number {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
}

.loss-text {
    font-size: 15px;
    line-height: 1.5;
}

.loss-text strong {
    font-weight: 700;
}

/* ===================================
   COMPARISON SECTION
   =================================== */
.comparison {
    background-color: var(--color-white);
}

.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.comparison-col {
    background-color: var(--color-light-gray);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
}

.comparison-col:last-child {
    background-color: var(--color-safe-light);
    border: 2px solid var(--color-safe);
}

.col-header {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.col-header.corporate {
    color: var(--color-gray);
}

.col-header.app {
    color: var(--color-safe);
}

.comparison-list {
    list-style: none;
    font-size: 13px;
}

.comparison-list li {
    padding: 6px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.comparison-list.highlight li {
    font-weight: 500;
}

/* ===================================
   COMMUNITY SECTION
   =================================== */
.community {
    background-color: var(--color-safe-light);
}

.community-title {
    font-size: 24px;
    line-height: 1.4;
}

.highlight-green {
    color: var(--color-safe);
    display: block;
}

.community-points {
    list-style: none;
    margin: var(--spacing-md) 0;
}

.community-points li {
    font-size: 16px;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    background-color: var(--color-white);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--color-safe);
}

.trust-note {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    border: 2px solid var(--color-safe);
}

.trust-note p {
    font-size: 15px;
    margin-bottom: var(--spacing-xs);
}

.privacy-note {
    font-size: 13px;
    color: var(--color-gray);
}

/* ===================================
   VIRAL SECTION
   =================================== */
.viral {
    background-color: var(--color-white);
}

.viral-card-preview {
    margin: var(--spacing-md) auto;
    max-width: 300px;
}

.viral-card {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.viral-caption {
    text-align: center;
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.6;
}

.viral-caption strong {
    color: var(--color-black);
    font-weight: 600;
}

/* ===================================
   FINAL CTA SECTION
   =================================== */
.final-cta {
    background: linear-gradient(180deg, var(--color-light-gray) 0%, var(--color-white) 100%);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-headline {
    font-size: 26px;
    margin-bottom: var(--spacing-md);
}

.cta-note {
    font-size: 14px;
    color: var(--color-gray);
    margin-top: var(--spacing-md);
    line-height: 1.6;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer-text {
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
}

.footer-contact {
    font-size: 13px;
    color: var(--color-gray);
}

.footer-contact a {
    color: var(--color-trust);
    text-decoration: none;
}

.footer-contact a:hover {
    text-decoration: underline;
}

/* ===================================
   RESPONSIVE - TABLET & DESKTOP
   =================================== */
@media (min-width: 768px) {
    .container {
        max-width: 600px;
    }
    
    .hero-headline {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .steps {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .step {
        flex: 1;
    }
    
    .comparison-table {
        gap: var(--spacing-md);
    }
}

/* ===================================
   ACCESSIBILITY
   =================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus {
    outline: 2px solid var(--color-trust);
    outline-offset: 2px;
}