/* ================================================================
   InvoiceGrab — styles.css
   Apple-style landing page, responsive, clean, trust-building

   TABLE OF CONTENTS:
   1. CSS Variables / Design Tokens
   2. Reset & Base
   3. Typography
   4. Layout / Container
   5. Buttons
   6. Navigation
   7. Hero
   8. Proof Bar
   9. Problem Section
   10. How It Works
   11. Features
   12. Testimonials
   13. Pricing
   14. FAQ
   15. SEO Content
   16. Final CTA
   17. Footer
   18. Animations
   19. Responsive (Tablet)
   20. Responsive (Mobile)
   ================================================================ */


/* ================================================================
   1. CSS VARIABLES / DESIGN TOKENS
   Edit these to change the entire look
   ================================================================ */
:root {
    /* Brand Colors */
    --color-primary: #027AFF;
    --color-primary-dark: #0262CC;
    --color-primary-light: #E8F0FF;
    --color-navy: #03162E;
    --color-navy-light: #0D2440;

    /* Neutrals */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;

    /* Accent */
    --color-star: #F59E0B;
    --color-success: #10B981;
    --color-danger: #EF4444;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Inter', 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

    /* Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;
    --nav-height: 72px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 20px;
    --border-radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
    --shadow-xl: 0 20px 50px -12px rgba(0, 0, 0, 0.12);
    --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 6px 16px rgba(0,0,0,0.06);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}


/* ================================================================
   2. RESET & BASE
   ================================================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--color-gray-100);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    color: var(--color-gray-700);
}


/* ================================================================
   3. TYPOGRAPHY
   ================================================================ */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-gray-900);
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--text-5xl);
    letter-spacing: -0.03em;
}

h2 {
    font-size: var(--text-4xl);
}

h3 {
    font-size: var(--text-xl);
    font-weight: 600;
}

p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

.section-label {
    display: inline-block;
    font-size: calc(var(--text-sm) * 1.3);
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-gray-500);
    max-width: 600px;
    margin: var(--space-md) auto 0;
}


/* ================================================================
   4. LAYOUT / CONTAINER
   ================================================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container--narrow {
    max-width: var(--container-narrow);
}

section {
    padding: var(--space-4xl) 0;
}


/* ================================================================
   5. BUTTONS
   ================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-family);
    font-weight: 600;
    font-size: var(--text-base);
    border: none;
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn--primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 2px 8px rgba(0, 145, 255, 0.3);
}

.btn--primary:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    box-shadow: 0 4px 16px rgba(0, 145, 255, 0.4);
    transform: translateY(-1px);
}

.btn--secondary {
    background: var(--color-white);
    color: var(--color-gray-700);
    border: 1.5px solid var(--color-gray-200);
}

.btn--secondary:hover {
    background: var(--color-gray-50);
    color: var(--color-gray-900);
    border-color: var(--color-gray-300);
}

.btn--sm {
    padding: 0.5rem 1.25rem;
    font-size: var(--text-sm);
}

.btn--lg {
    padding: 0.875rem 2rem;
    font-size: var(--text-lg);
}

.btn--full {
    width: 100%;
}


/* ================================================================
   6. NAVIGATION
   ================================================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

.nav--scrolled {
    box-shadow: var(--shadow-md);
}

.nav__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo img {
    height: 36px;
    width: auto;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
}

.nav__links a {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav__links a:hover {
    color: var(--color-gray-900);
}

.nav__cta {
    flex-shrink: 0;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav__toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-gray-700);
    border-radius: 2px;
    transition: all var(--transition-fast);
}


/* ================================================================
   7. HERO
   ================================================================ */
.hero {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    padding-bottom: var(--space-3xl);
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
}

.hero > .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.4rem 1rem;
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--border-radius-full);
    margin-bottom: var(--space-xl);
}

.hero__badge svg {
    flex-shrink: 0;
}

.hero h1 {
    margin-bottom: var(--space-lg);
}

.hero__subtitle {
    font-size: var(--text-xl);
    color: var(--color-gray-500);
    margin-bottom: var(--space-2xl);
    max-width: 540px;
}

.hero__ctas {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.hero__trust {
    display: flex;
    gap: var(--space-xl);
    flex-wrap: nowrap;
    align-items: center;
}

.hero__trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.hero__trust-item svg {
    color: var(--color-success);
    flex-shrink: 0;
}

.hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__hero-image {
    width: 100%;
    max-width: 560px;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}


/* ================================================================
   8. PROOF BAR
   ================================================================ */
.proof-bar {
    padding: var(--space-2xl) 0;
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-100);
}

.proof-bar > .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.proof-bar__text {
    font-size: var(--text-base);
    color: var(--color-gray-500);
}

.proof-bar__text strong {
    color: var(--color-gray-800);
}

.proof-bar__stars {
    display: flex;
    align-items: center;
    gap: 2px;
}

.proof-bar__stars span {
    margin-left: var(--space-sm);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-gray-700);
}


/* ================================================================
   9. PROBLEM SECTION
   ================================================================ */
.problem {
    background: var(--color-white);
    text-align: center;
    padding-bottom: 0;
}

.problem h2 {
    max-width: 760px;
    margin: 0 auto var(--space-lg);
}

.problem__intro {
    font-size: var(--text-lg);
    max-width: 760px;
    margin: 0 auto var(--space-3xl);
}

.problem__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    text-align: left;
    margin-bottom: var(--space-3xl);
}

.problem__card {
    padding: var(--space-2xl);
    border-radius: var(--border-radius);
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-100);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.problem__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
    background: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    color: var(--color-primary);
}

.problem__card h3 {
    margin-bottom: var(--space-sm);
}

.problem__closer {
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

.problem__screenshot {
    margin-top: var(--space-xl);
    text-align: center;
    overflow: hidden;
}

.problem__screenshot img {
    display: block;
    width: 100%;
    max-width: 768px;
    height: auto;
    margin: 0 auto;
}


/* ================================================================
   10. HOW IT WORKS
   ================================================================ */
.how-it-works {
    background: var(--color-primary);
    text-align: center;
}

.how-it-works .section-label {
    color: rgba(255, 255, 255, 0.7);
}

.how-it-works h2 {
    color: var(--color-white);
}

.how-it-works .section-subtitle {
    color: rgba(255, 255, 255, 0.75);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
    margin-top: var(--space-3xl);
    text-align: center;
}

.step {
    position: relative;
}

.step__number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    color: var(--color-white);
    font-size: var(--text-lg);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-xl);
}

.step h3 {
    color: var(--color-white);
}

.step > p {
    color: rgba(255, 255, 255, 0.8);
}

.step__visual {
    margin-bottom: var(--space-xl);
}

.step__visual video {
    width: 100%;
    border-radius: var(--border-radius);
    display: block;
}

.step__placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.15);
    border: 2px dashed rgba(255, 255, 255, 0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    color: rgba(255, 255, 255, 0.6);
}

.step__placeholder span {
    font-size: var(--text-sm);
}

.step h3 {
    margin-bottom: var(--space-sm);
}


/* ================================================================
   11. FEATURES
   ================================================================ */
.features {
    background: var(--color-white);
    text-align: center;
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-3xl);
    text-align: left;
}

.feature-card {
    padding: var(--space-2xl);
    border-radius: var(--border-radius);
    background: var(--color-white);
    border: 1px solid var(--color-gray-100);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.feature-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
    background: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    color: var(--color-primary);
}

.feature-card h3 {
    margin-bottom: var(--space-sm);
    color: var(--color-gray-900);
}


/* ================================================================
   12. TESTIMONIALS
   ================================================================ */
.testimonials {
    background: var(--color-primary);
    text-align: center;
}

.testimonials .section-label {
    color: rgba(255, 255, 255, 0.7);
}

.testimonials h2 {
    color: var(--color-white);
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-3xl);
    text-align: left;
    align-items: start;
}

.testimonial-card {
    padding: var(--space-2xl);
    border-radius: var(--border-radius);
    background: var(--color-white);
    border: 1px solid var(--color-gray-100);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.testimonial-card__stars {
    display: flex;
    gap: 2px;
}

.testimonial-card blockquote {
    font-size: var(--text-base);
    color: var(--color-gray-700);
    line-height: 1.7;
    font-style: normal;
    flex-grow: 1;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.testimonial-card__avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--color-gray-100);
}

.testimonial-card__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.testimonial-card__author strong {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-gray-800);
}

.testimonial-card__author span {
    font-size: var(--text-xs);
    color: var(--color-gray-400);
}


/* ================================================================
   13. PRICING
   ================================================================ */
.pricing {
    background: var(--color-white);
    text-align: center;
}

.pricing__card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-100);
    border-radius: var(--border-radius-lg);
    padding: var(--space-3xl);
    margin-top: var(--space-3xl);
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-base);
}

.pricing__card:hover {
    transform: translateY(-4px);
}

.pricing__header {
    margin-bottom: var(--space-xl);
}

.pricing__header img {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
}

.pricing__header h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-xs);
}

.pricing__header p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.pricing__price {
    margin-bottom: var(--space-2xl);
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-100);
}

.pricing__amount {
    font-size: var(--text-6xl);
    font-weight: 800;
    color: var(--color-gray-900);
    letter-spacing: -0.03em;
}

.pricing__period {
    font-size: var(--text-lg);
    color: var(--color-gray-400);
    margin-left: var(--space-xs);
}

.pricing__features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--space-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.pricing__features li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--text-base);
    color: var(--color-gray-700);
}

.pricing__features li svg {
    flex-shrink: 0;
}

.pricing__guarantee {
    margin-top: var(--space-lg);
    font-size: var(--text-sm);
    color: var(--color-gray-400);
}


/* ================================================================
   14. FAQ
   ================================================================ */
.faq {
    background: var(--color-gray-50);
    text-align: center;
}

.faq__list {
    text-align: left;
    margin-top: var(--space-3xl);
    display: flex;
    flex-direction: column;
    gap: 0;
}

.faq__item {
    border-bottom: 1px solid var(--color-gray-200);
}

.faq__item:first-child {
    border-top: 1px solid var(--color-gray-200);
}

.faq__item summary {
    padding: var(--space-xl) 0;
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-gray-800);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    transition: color var(--transition-fast);
}

.faq__item summary:hover {
    color: var(--color-primary);
}

.faq__item summary::-webkit-details-marker {
    display: none;
}

.faq__item summary::after {
    content: '+';
    font-size: var(--text-2xl);
    font-weight: 300;
    color: var(--color-gray-400);
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.faq__item[open] summary::after {
    content: '\2212';
}

.faq__answer {
    padding-bottom: var(--space-xl);
}

.faq__answer p {
    font-size: var(--text-base);
    line-height: 1.7;
}


/* ================================================================
   15. SEO CONTENT
   ================================================================ */
.seo-content {
    background: var(--color-white);
    text-align: left;
}

.seo-content h2 {
    margin-bottom: var(--space-3xl);
    text-align: center;
}

.seo-content__block {
    margin-bottom: var(--space-3xl);
}

.seo-content__block:last-child {
    margin-bottom: 0;
}

.seo-content__block h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-lg);
    color: var(--color-gray-900);
}

.seo-content__block p {
    margin-bottom: var(--space-md);
    font-size: var(--text-base);
    line-height: 1.8;
}

.seo-content__block p:last-child {
    margin-bottom: 0;
}


/* ================================================================
   16. FINAL CTA
   ================================================================ */
.final-cta {
    background: var(--color-navy);
    text-align: center;
    padding: var(--space-5xl) 0;
}

.final-cta h2 {
    color: var(--color-white);
    font-size: var(--text-4xl);
    margin-bottom: var(--space-md);
}

.final-cta > .container > p {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--text-xl);
    margin-bottom: var(--space-2xl);
}

.final-cta .btn--primary {
    background: var(--color-white);
    color: var(--color-navy);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.final-cta .btn--primary:hover {
    background: var(--color-gray-100);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.final-cta__sub {
    margin-top: var(--space-lg);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.4);
}


/* ================================================================
   17. FOOTER
   ================================================================ */
.footer {
    background: var(--color-navy);
    padding: var(--space-4xl) 0 var(--space-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__top {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-4xl);
    padding-bottom: var(--space-3xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand img {
    height: 28px;
    width: auto;
    margin-bottom: var(--space-lg);
    opacity: 0.9;
}

.footer__brand p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.4);
    max-width: 280px;
    line-height: 1.7;
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}

.footer__col h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer__col a {
    display: block;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: var(--space-sm);
    transition: color var(--transition-fast);
}

.footer__col a:hover {
    color: var(--color-white);
}

.footer__bottom {
    padding-top: var(--space-2xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer__bottom p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.3);
}


/* ================================================================
   18. ANIMATIONS
   ================================================================ */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* Scroll-triggered fade-in */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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


/* ================================================================
   19. RESPONSIVE — TABLET (max-width: 1024px)
   ================================================================ */
@media (max-width: 1024px) {
    h1 {
        font-size: var(--text-4xl);
    }

    h2 {
        font-size: var(--text-3xl);
    }

    .hero > .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-3xl);
    }

    .hero__subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__ctas {
        justify-content: center;
    }

    .hero__trust {
        justify-content: center;
    }

    .hero__hero-image {
        max-width: 360px;
    }

    .problem__grid {
        grid-template-columns: 1fr;
        max-width: 560px;
        margin-left: auto;
        margin-right: auto;
    }

    .steps {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin-left: auto;
        margin-right: auto;
    }

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

    .testimonials__grid {
        grid-template-columns: 1fr;
        max-width: 560px;
        margin-left: auto;
        margin-right: auto;
    }

    .footer__top {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }
}


/* ================================================================
   20. RESPONSIVE — MOBILE (max-width: 768px)
   ================================================================ */
@media (max-width: 768px) {
    :root {
        --nav-height: 64px;
    }

    section {
        padding: var(--space-3xl) 0;
    }

    .container {
        padding: 0 var(--space-lg);
    }

    h1 {
        font-size: calc(var(--text-3xl) * 1.3);
    }

    h2 {
        font-size: calc(var(--text-2xl) * 1.3);
    }

    /* Nav mobile */
    .nav__links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--space-xl);
        gap: var(--space-lg);
        border-bottom: 1px solid var(--color-gray-100);
        box-shadow: var(--shadow-lg);
    }

    .nav__links.active {
        display: flex;
    }

    .nav__cta {
        display: none;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* Hero mobile — image first, full-bleed with bottom fade */
    .hero {
        padding-top: var(--nav-height);
        padding-bottom: var(--space-3xl);
    }

    .hero > .container {
        gap: 0;
    }

    .hero__visual {
        order: -1;
        position: relative;
        margin-left: calc(-1 * var(--space-lg));
        margin-right: calc(-1 * var(--space-lg));
        width: calc(100% + 2 * var(--space-lg));
        height: 60vw;
    }

    .hero__visual::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 40%;
        background: linear-gradient(to bottom, transparent, var(--color-white));
        pointer-events: none;
    }

    .hero__hero-image {
        width: 100%;
        height: 100%;
        object-fit: cover;
        object-position: center center;
        max-width: none;
        border-radius: 0;
        box-shadow: none;
        animation: none;
    }

    .hero__content {
        padding-top: var(--space-xl);
    }

    .hero__ctas {
        flex-direction: column;
        align-items: center;
    }

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

    .hero__trust {
        flex-direction: column;
        align-items: center;
        gap: var(--space-sm);
    }

    .problem__closer {
        font-size: var(--text-2xl);
    }

    /* Features mobile */
    .features__grid {
        grid-template-columns: 1fr;
    }

    /* Footer mobile */
    .footer__links {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }

    /* FAQ mobile */
    .faq__item summary {
        font-size: var(--text-base);
    }

    /* Pricing card */
    .pricing__card {
        padding: var(--space-2xl);
    }

    .pricing__amount {
        font-size: var(--text-5xl);
    }
}


/* ================================================================
   SMALL MOBILE (max-width: 480px)
   ================================================================ */
@media (max-width: 480px) {
    h1 {
        font-size: calc(var(--text-2xl) * 1.3);
    }

    .hero__badge {
        font-size: var(--text-xs);
    }

    .hero__subtitle {
        font-size: var(--text-base);
    }

    .proof-bar > .container {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}


/* ================================================================
   21. LEGAL MODALS
   ================================================================ */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}

.modal.is-open {
    display: flex;
}

.modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(3, 22, 46, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    cursor: pointer;
}

.modal__panel {
    position: relative;
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 660px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xl) var(--space-2xl);
    border-bottom: 1px solid var(--color-gray-100);
    flex-shrink: 0;
}

.modal__title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.modal__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--color-gray-100);
    color: var(--color-gray-500);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
    flex-shrink: 0;
}

.modal__close:hover {
    background: var(--color-gray-200);
    color: var(--color-gray-900);
}

.modal__body {
    padding: var(--space-2xl);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.modal__body h3 {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-sm);
}

.modal__body h3:first-of-type {
    margin-top: 0;
}

.modal__body p {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: 1.75;
    margin-bottom: var(--space-md);
}

.modal__body p:last-child {
    margin-bottom: 0;
}

.modal__body a {
    color: var(--color-primary);
    text-decoration: underline;
}

.modal__placeholder-notice {
    background: #FFF8E1;
    border: 1px solid #FFE082;
    border-radius: var(--border-radius);
    padding: var(--space-md) var(--space-lg);
    font-size: var(--text-sm) !important;
    color: #795548 !important;
    margin-bottom: var(--space-xl) !important;
}

/* Lock body scroll when modal is open */
body.modal-open {
    overflow: hidden;
}

@media (max-width: 480px) {
    .modal {
        padding: var(--space-md);
        align-items: flex-end;
    }

    .modal__panel {
        max-height: 92vh;
        border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    }
}


/* ================================================================
   LANDING PAGES
   Reusable styles for SEO landing pages (.lp-* prefix)
   ================================================================ */

/* Article layout */
.lp-article {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    padding-bottom: var(--space-4xl);
}

.lp-article h1 {
    font-size: var(--text-4xl);
    font-weight: 800;
    line-height: 1.15;
    color: var(--color-gray-900);
    margin-bottom: var(--space-xl);
}

.lp-article h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
}

.lp-article p {
    font-size: var(--text-lg);
    line-height: 1.75;
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
}

.lp-article ul {
    font-size: var(--text-lg);
    line-height: 1.75;
    color: var(--color-gray-600);
    margin-bottom: var(--space-xl);
    padding-left: var(--space-xl);
}

.lp-article ul li {
    margin-bottom: var(--space-sm);
}

.lp-article ul li::marker {
    color: var(--color-primary);
}

.lp-article code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--color-gray-100);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    color: var(--color-gray-700);
}

.lp-article a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition-fast);
}

.lp-article a:hover {
    color: var(--color-primary-dark);
}

/* Article images */
.lp-article img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-xl);
}

.lp-article__hero {
    margin-bottom: var(--space-2xl);
}

/* Breadcrumb */
.lp-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    margin-bottom: var(--space-2xl);
}

.lp-breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.lp-breadcrumb a:hover {
    color: var(--color-primary-dark);
}

.lp-breadcrumb span:last-child {
    color: var(--color-gray-500);
}

/* Landing page CTA section */
.lp-cta {
    padding: var(--space-4xl) 0;
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-100);
}

.lp-cta__buttons {
    margin-top: var(--space-2xl);
}

.lp-cta__guarantee {
    margin-top: var(--space-lg);
    font-size: var(--text-sm);
    color: var(--color-gray-400);
}

/* Landing page responsive */
@media (max-width: 768px) {
    .lp-article {
        padding-top: calc(var(--nav-height) + var(--space-xl));
        padding-bottom: var(--space-2xl);
    }

    .lp-article h1 {
        font-size: var(--text-3xl);
    }

    .lp-article h2 {
        font-size: var(--text-xl);
        margin-top: var(--space-2xl);
    }

    .lp-article p,
    .lp-article ul {
        font-size: var(--text-base);
    }

    .lp-article img {
        border-radius: var(--border-radius-sm);
    }

    .lp-cta {
        padding: var(--space-3xl) 0;
    }
}