/* ============================================
   EconShot Marketing Site — Style System
   Academic Elegance: serif typography, warm
   paper tones, ink-weight marks
   ============================================ */

/* --- Design Tokens --- */
:root {
    --paper-bg: #FAF7F0;
    --card-surface: #FFFFFF;
    --card-border: #D9D4CC;
    --dark-ink: #1F2940;
    --deep-navy: #19233A;
    --medium-blue: #3366B3;
    --coral: #D9543D;
    --forest-green: #388F3D;
    --purple: #9457A3;
    --gold: #E69426;
    --card-radius: 12px;
    --font-serif: 'New York', Georgia, 'Times New Roman', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro', 'Helvetica Neue', sans-serif;
    --max-width: 1120px;
    --section-spacing: 80px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-serif);
    color: var(--dark-ink);
    background-color: var(--paper-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--medium-blue);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--coral);
}

/* --- Container --- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Header / Nav --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--paper-bg);
    border-bottom: 0.5px solid var(--card-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--dark-ink);
}

.nav-brand svg {
    width: 32px;
    height: 32px;
}

.nav-brand span {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--dark-ink);
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--dark-ink);
}

.nav-cta {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    background: var(--medium-blue);
    color: #fff !important;
    opacity: 1 !important;
    padding: 8px 20px;
    border-radius: 8px;
    transition: background 0.2s ease !important;
}

.nav-cta:hover {
    background: var(--coral) !important;
    color: #fff !important;
}

/* Hamburger */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark-ink);
    margin: 5px 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.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 --- */
.hero {
    padding: 80px 0 60px;
    text-align: center;
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    color: var(--dark-ink);
}

.hero h1 .accent {
    color: var(--medium-blue);
}

.hero .subtitle {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--dark-ink);
    opacity: 0.7;
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.5;
}

.hero-screenshot {
    max-width: 320px;
    margin: 40px auto 0;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(31, 41, 64, 0.12), 0 4px 16px rgba(31, 41, 64, 0.06);
}

/* --- Waitlist Form --- */
.waitlist-form {
    display: flex;
    gap: 10px;
    max-width: 440px;
    margin: 0 auto;
}

.waitlist-form input[type="email"] {
    flex: 1;
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    background: var(--card-surface);
    color: var(--dark-ink);
    outline: none;
    transition: border-color 0.2s ease;
}

.waitlist-form input[type="email"]:focus {
    border-color: var(--medium-blue);
}

.waitlist-form input[type="email"]::placeholder {
    color: #999;
}

.waitlist-form button {
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    background: var(--medium-blue);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s ease;
}

.waitlist-form button:hover {
    background: var(--coral);
}

.waitlist-form button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-feedback {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    margin-top: 10px;
    min-height: 1.2em;
}

.form-feedback.success {
    color: var(--forest-green);
}

.form-feedback.error {
    color: var(--coral);
}

/* --- Section Layout --- */
.section {
    padding: var(--section-spacing) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 12px;
}

.section-header p {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    opacity: 0.7;
    max-width: 560px;
    margin: 0 auto;
}

/* --- Card Component --- */
.card {
    background: var(--card-surface);
    border-radius: var(--card-radius);
    border: 0.5px solid var(--card-border);
    padding: 28px 24px;
    transition: box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: 0 4px 20px rgba(31, 41, 64, 0.06);
}

.card-icon {
    font-size: 1.75rem;
    margin-bottom: 16px;
}

.card h3 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.card p {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    line-height: 1.55;
    opacity: 0.75;
}

/* --- Value Props Grid (3 columns) --- */
.value-props {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* --- Features Grid (3x2) --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* --- How It Works --- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    counter-reset: step;
}

.step {
    text-align: center;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--medium-blue);
    color: #fff;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.step-screenshot {
    width: 100%;
    max-width: 240px;
    margin: 16px auto 0;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(31, 41, 64, 0.1);
}

.step h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.step p {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    opacity: 0.7;
}

/* --- Pricing Teaser --- */
.pricing-teaser {
    text-align: center;
}

.pricing-teaser .pricing-card {
    max-width: 520px;
    margin: 0 auto;
    background: var(--card-surface);
    border-radius: var(--card-radius);
    border: 0.5px solid var(--card-border);
    padding: 40px 32px;
}

.pricing-teaser h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.pricing-teaser .pricing-subtitle {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    opacity: 0.7;
    margin-bottom: 24px;
}

.pricing-teaser ul {
    list-style: none;
    text-align: left;
    max-width: 360px;
    margin: 0 auto 28px;
}

.pricing-teaser ul li {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    padding: 8px 0;
    border-bottom: 0.5px solid var(--card-border);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.pricing-teaser .check {
    color: var(--forest-green);
    font-weight: 600;
}

.pricing-teaser .cta-link {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--medium-blue);
    margin-top: 8px;
}

.pricing-teaser .cta-link:hover {
    color: var(--coral);
}

/* --- Footer --- */
.site-footer {
    border-top: 0.5px solid var(--card-border);
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-tagline {
    font-family: var(--font-serif);
    font-size: 0.9rem;
    font-style: italic;
    opacity: 0.6;
}

.footer-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.footer-links a {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--dark-ink);
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-copy {
    width: 100%;
    text-align: center;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    opacity: 0.5;
    margin-top: 16px;
}

/* --- Content Pages (Privacy, Support, Terms) --- */
.content-page {
    padding: 48px 0 var(--section-spacing);
}

.content-page h1 {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.content-page .last-updated {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    opacity: 0.5;
    margin-bottom: 40px;
}

.content-page h2 {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 600;
    margin-top: 36px;
    margin-bottom: 12px;
}

.content-page p,
.content-page li {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.7;
    opacity: 0.85;
    margin-bottom: 12px;
}

.content-page ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

.content-page li {
    margin-bottom: 6px;
}

.content-page strong {
    font-weight: 600;
    opacity: 1;
}

.content-page a {
    text-decoration: underline;
    text-decoration-color: var(--card-border);
    text-underline-offset: 2px;
}

.content-page a:hover {
    text-decoration-color: var(--medium-blue);
}

/* Support page specific */
.support-contact {
    background: var(--card-surface);
    border-radius: var(--card-radius);
    border: 0.5px solid var(--card-border);
    padding: 24px;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.support-contact .app-icon {
    width: 64px;
    height: 64px;
    border-radius: 14px;
}

.support-contact .contact-info h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    margin-bottom: 2px;
}

.support-contact .contact-info p {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 0;
}

.faq-item {
    margin-bottom: 24px;
}

.faq-item h3 {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.faq-item p {
    margin-bottom: 0;
}

/* --- Responsive: Tablet (768px) --- */
@media (max-width: 768px) {
    :root {
        --section-spacing: 56px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--paper-bg);
        border-bottom: 0.5px solid var(--card-border);
        flex-direction: column;
        padding: 16px 24px;
        gap: 16px;
    }

    .nav-links.open {
        display: flex;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .hero .subtitle {
        font-size: 1.1rem;
    }

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

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

    .steps {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .footer-links {
        justify-content: center;
    }
}

/* --- Responsive: Mobile (480px) --- */
@media (max-width: 480px) {
    .hero {
        padding: 48px 0 40px;
    }

    .hero h1 {
        font-size: 1.85rem;
    }

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

    .section-header h2 {
        font-size: 1.6rem;
    }

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

    .hero-screenshot {
        max-width: 260px;
    }
}