/* ============================================
   mailproductivity.com landing page, style.css
   Microsoft Fluent UI Design Tokens
   Mobile-first responsive design
   ============================================ */

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

:root {
    --primary: #0078d4;
    --primary-hover: #106ebe;
    --primary-light: #e8f4fd;
    --primary-dark: #004578;
    --success: #107c10;
    --warning: #d83b01;
    --error: #a4262c;

    --neutral-dark: #201f1e;
    --neutral-primary: #323130;
    --neutral-secondary: #605e5c;
    --neutral-tertiary: #a19f9d;
    --neutral-quaternary: #d0d0d0;
    --neutral-light: #f3f2f1;
    --neutral-lighter: #faf9f8;
    --white: #ffffff;

    --shadow-sm: 0 1.6px 3.6px 0 rgba(0,0,0,0.08), 0 0.3px 0.9px 0 rgba(0,0,0,0.06);
    --shadow-md: 0 3.2px 7.2px 0 rgba(0,0,0,0.10), 0 0.6px 1.8px 0 rgba(0,0,0,0.08);
    --shadow-lg: 0 6.4px 14.4px 0 rgba(0,0,0,0.12), 0 1.2px 3.6px 0 rgba(0,0,0,0.10);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --font: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
    --container: 1140px;
}

html { scroll-behavior: smooth; }

/* --- Accessibility utilities --- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}
.skip-link {
    position: absolute;
    top: -48px;
    left: 0;
    background: var(--primary);
    color: var(--white);
    padding: 10px 18px;
    z-index: 2000;
    text-decoration: none;
    font-weight: 700;
    border-radius: 0 0 8px 0;
    transition: top 0.15s ease;
}
.skip-link:focus {
    top: 0;
    color: var(--white);
    outline: 2px solid var(--white);
    outline-offset: 2px;
}

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

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

img { max-width: 100%; height: auto; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    text-decoration: none;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: var(--primary);
    color: var(--white);
    padding: 14px 28px;
    font-size: 16px;
}
.btn-primary:hover { background: var(--primary-hover); color: var(--white); box-shadow: var(--shadow-md); }

.btn-sm {
    padding: 8px 20px;
    font-size: 14px;
}
.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}
.btn-white {
    background: rgba(255,255,255,0.15);
    color: var(--white);
    border: 1.5px solid rgba(255,255,255,0.5);
    backdrop-filter: blur(4px);
}
.btn-white:hover {
    background: rgba(255,255,255,0.25);
    color: var(--white);
    border-color: rgba(255,255,255,0.8);
}

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--primary);
    padding: 0;
    transition: box-shadow 0.3s ease;
}
.header.scrolled {
    box-shadow: var(--shadow-md);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}
.header-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* --- Logo --- */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--white);
}
.logo-text {
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.3px;
}
.logo-lockup {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}
.logo-brand {
    font-weight: 700;
    font-size: 15px;
    letter-spacing: -0.2px;
    color: var(--white);
}
.logo-product {
    font-size: 11px;
    font-weight: 500;
    color: rgba(255,255,255,0.75);
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.logo-footer { color: var(--neutral-primary); }
.logo-footer .logo-text { font-size: 16px; }

/* --- Language Toggle --- */
.lang-toggle {
    background: rgba(255,255,255,0.15);
    color: var(--white);
    border: 1.5px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-sm);
    padding: 6px 14px;
    font-family: var(--font);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}
.lang-toggle:hover {
    background: rgba(255,255,255,0.25);
    border-color: rgba(255,255,255,0.6);
}
.lang-toggle-footer {
    background: var(--neutral-light);
    color: var(--neutral-primary);
    border-color: var(--neutral-quaternary);
}
.lang-toggle-footer:hover {
    background: var(--neutral-quaternary);
    border-color: var(--neutral-tertiary);
}

/* ========== HERO ========== */
.hero {
    background: linear-gradient(135deg, #0062ad 0%, #0078d4 40%, #2b88d8 100%);
    color: var(--white);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -20%;
    width: 60%;
    height: 140%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.06) 0%, transparent 70%);
    pointer-events: none;
}
.hero-inner {
    display: flex;
    align-items: center;
    gap: 60px;
}
.hero-content { flex: 1; min-width: 0; }
.hero-visual { flex: 0 0 480px; }

.hero-title {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
}
.hero-subtitle {
    font-size: 18px;
    line-height: 1.6;
    opacity: 0.92;
    margin-bottom: 32px;
    max-width: 540px;
}
.hero-trust {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    opacity: 0.85;
    margin-top: 16px;
}
.hero-trust svg { flex-shrink: 0; }

/* --- Signup Form --- */
.signup-form { max-width: 480px; }
.signup-form-center {
    max-width: 520px;
    margin: 0 auto;
}
.form-row {
    display: flex;
    gap: 8px;
    align-items: stretch;
}
.form-input {
    flex: 1;
    padding: 14px 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.12);
    color: var(--white);
    font-family: var(--font);
    font-size: 16px;
    outline: none;
    transition: all 0.2s ease;
    backdrop-filter: blur(4px);
}
.form-input::placeholder { color: rgba(255,255,255,0.6); }
.form-input:focus {
    border-color: rgba(255,255,255,0.7);
    background: rgba(255,255,255,0.18);
}

/* Form on white background (final CTA) */
.section-cta .form-input {
    background: var(--white);
    border: 2px solid var(--neutral-quaternary);
    color: var(--neutral-primary);
}
.section-cta .form-input::placeholder { color: var(--neutral-tertiary); }
.section-cta .form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,120,212,0.15);
}

.form-message {
    margin-top: 10px;
    font-size: 14px;
    min-height: 20px;
}
.form-message.success { color: #a7f3d0; }
.form-message.error { color: #fecaca; }
.section-cta .form-message.success { color: var(--success); }
.section-cta .form-message.error { color: var(--error); }

/* ========== MOCKUP ========== */
.mockup {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg), 0 20px 60px rgba(0,0,0,0.2);
    overflow: hidden;
    color: var(--neutral-primary);
}
.mockup-titlebar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    background: var(--neutral-light);
    border-bottom: 1px solid #edebe9;
}
.mockup-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--neutral-quaternary);
}
.mockup-dot:nth-child(1) { background: #ff5f56; }
.mockup-dot:nth-child(2) { background: #ffbd2e; }
.mockup-dot:nth-child(3) { background: #27c93f; }
.mockup-title {
    margin-left: 8px;
    font-size: 12px;
    color: var(--neutral-secondary);
    font-weight: 500;
}
.mockup-body {
    display: flex;
    min-height: 280px;
}
.mockup-sidebar {
    width: 140px;
    background: var(--neutral-lighter);
    border-right: 1px solid #edebe9;
    padding: 12px 0;
}
.mockup-sidebar-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    font-size: 12px;
    color: var(--neutral-secondary);
    cursor: default;
}
.mockup-sidebar-item.active {
    background: rgba(0,120,212,0.08);
    color: var(--primary);
    font-weight: 600;
}
.mockup-content {
    flex: 1;
    padding: 16px;
}
.mockup-stat-row {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}
.mockup-stat {
    flex: 1;
    text-align: center;
    padding: 10px 8px;
    background: var(--neutral-lighter);
    border-radius: var(--radius-sm);
}
.mockup-stat-num {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.2;
}
.mockup-stat-label {
    font-size: 10px;
    color: var(--neutral-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}
.mockup-list { display: flex; flex-direction: column; gap: 8px; }
.mockup-list-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    background: var(--neutral-lighter);
}
.mockup-list-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.mockup-list-dot.green { background: var(--success); }
.mockup-list-dot.blue { background: var(--primary); }
.mockup-list-dot.orange { background: var(--warning); }
.mockup-list-name { font-size: 12px; font-weight: 600; }
.mockup-list-sub { font-size: 11px; color: var(--neutral-secondary); }

/* ========== SECTIONS ========== */
.section {
    padding: 80px 0;
}
.section-alt {
    background: var(--neutral-lighter);
}
.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.3px;
    margin-bottom: 48px;
    color: var(--neutral-dark);
}
.section-title-white { color: var(--white); }
.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--neutral-secondary);
    margin-top: -32px;
    margin-bottom: 40px;
}
.section-subtitle-white {
    text-align: center;
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    margin-top: -32px;
    margin-bottom: 40px;
}

/* --- Pain Points / Stats --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.stat-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 12px;
}
.stat-label {
    font-size: 15px;
    color: var(--neutral-secondary);
    line-height: 1.5;
}

/* --- Features --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--white);
    border: 1px solid #edebe9;
    border-radius: var(--radius-md);
    padding: 32px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}
.feature-icon { margin-bottom: 16px; }
.feature-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--neutral-dark);
}
.feature-desc {
    font-size: 15px;
    color: var(--neutral-secondary);
    line-height: 1.6;
}

/* --- How It Works / Steps --- */
.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
}
.step {
    text-align: center;
    flex: 0 0 260px;
    padding: 0 20px;
}
.step-number {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 4px 12px rgba(0,120,212,0.3);
}
.step-connector {
    flex: 0 0 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--neutral-quaternary));
    margin-top: 28px;
    border-radius: 1px;
}
.step-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--neutral-dark);
}
.step-desc {
    font-size: 14px;
    color: var(--neutral-secondary);
    line-height: 1.6;
}

/* --- Trust --- */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}
.trust-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 24px;
    background: var(--neutral-lighter);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    color: var(--neutral-dark);
    transition: transform 0.2s ease;
}
.trust-item:hover { transform: translateX(4px); }
.trust-item svg { flex-shrink: 0; }

/* --- Early Access / Gradient Section --- */
.section-gradient {
    background: linear-gradient(135deg, #0062ad 0%, #0078d4 50%, #2b88d8 100%);
    color: var(--white);
    text-align: center;
    padding: 80px 0;
}
.early-badge {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    backdrop-filter: blur(4px);
}
.benefits {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 32px;
    flex-wrap: wrap;
}
.benefit {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 500;
}

/* --- Final CTA --- */
.section-cta {
    padding: 80px 0;
    text-align: center;
    background: var(--white);
}

/* --- Footer --- */
.footer {
    background: var(--neutral-lighter);
    border-top: 1px solid #edebe9;
    padding: 32px 0;
}
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}
.footer-links {
    display: flex;
    align-items: center;
    gap: 20px;
}
.footer-links a {
    font-size: 14px;
    color: var(--neutral-secondary);
}
.footer-links a:hover { color: var(--primary); }
.footer-copy {
    font-size: 13px;
    color: var(--neutral-tertiary);
    width: 100%;
    text-align: center;
    margin-top: 8px;
}

/* ========== LAUNCH BADGE (hero) ========== */
.launch-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(255,255,255,0.18);
    border: 1px solid rgba(255,255,255,0.35);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    color: var(--white);
    margin-bottom: 18px;
    backdrop-filter: blur(4px);
}
.launch-badge svg { flex-shrink: 0; }

/* ========== SECTION EYEBROW ========== */
.section-eyebrow {
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 14px;
}

/* ========== MISSION SECTION ========== */
.section-mission {
    background: var(--white);
    padding: 80px 0;
}
.mission-text {
    max-width: 800px;
    margin: 0 auto 56px;
    text-align: center;
    font-size: 17px;
    line-height: 1.75;
    color: var(--neutral-secondary);
}
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.benefit-card {
    text-align: center;
    padding: 32px 24px;
    background: var(--neutral-lighter);
    border-radius: var(--radius-md);
    border: 1px solid #edebe9;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}
.benefit-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--primary-light);
    margin-bottom: 20px;
}
.benefit-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--neutral-dark);
    margin-bottom: 12px;
}
.benefit-desc {
    font-size: 15px;
    line-height: 1.65;
    color: var(--neutral-secondary);
}

/* ========== DETAILED FEATURES ========== */
.df-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}
.df-block:last-child { margin-bottom: 0; }
.df-block-reverse .df-content { order: 2; }
.df-block-reverse .df-visual { order: 1; }

.df-number {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 2px;
    margin-bottom: 12px;
}
.df-title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--neutral-dark);
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}
.df-desc {
    font-size: 16px;
    line-height: 1.7;
    color: var(--neutral-secondary);
    margin-bottom: 20px;
}
.df-list {
    list-style: none;
    padding: 0;
}
.df-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 10px;
    font-size: 15px;
    color: var(--neutral-primary);
    line-height: 1.5;
}
.df-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 18px;
    height: 18px;
    background: var(--success);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18' fill='none'%3E%3Cpath d='M5 9l3 3 5-6' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

/* --- DF Illustrations --- */
.df-visual {
    display: flex;
    justify-content: center;
}
.df-illo {
    background: var(--white);
    border: 1px solid #edebe9;
    border-radius: var(--radius-lg);
    padding: 28px;
    width: 100%;
    max-width: 380px;
    box-shadow: var(--shadow-md);
}

/* DF1 — Ribbon */
.df-ribbon-bar {
    display: flex;
    gap: 4px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--neutral-light);
    margin-bottom: 16px;
}
.df-ribbon-tab {
    font-size: 12px;
    padding: 4px 10px;
    color: var(--neutral-secondary);
    border-radius: 4px;
}
.df-ribbon-tab.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}
.df-ribbon-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--primary-light);
    border: 1.5px solid var(--primary);
    border-radius: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
}

/* DF2 — Detection */
.df-illo-detect { display: flex; flex-direction: column; gap: 10px; }
.df-msg {
    padding: 12px 14px;
    border-radius: 8px;
    border: 1px solid var(--neutral-light);
}
.df-msg-out { background: var(--neutral-lighter); }
.df-msg-in { background: #e7f4e7; border-color: #b7e1b7; }
.df-msg-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--neutral-tertiary);
    margin-bottom: 2px;
}
.df-msg-in .df-msg-label { color: var(--success); }
.df-msg-content { font-size: 13px; color: var(--neutral-primary); }
.df-arrow {
    text-align: center;
    color: var(--neutral-tertiary);
    font-size: 18px;
    line-height: 1;
}
.df-stopped {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
    padding: 6px 12px;
    background: #e7f4e7;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    color: var(--success);
    align-self: flex-start;
}

/* DF3 — Presets */
.df-illo-presets { display: flex; flex-direction: column; gap: 10px; }
.df-preset {
    padding: 14px 16px;
    border: 1.5px solid var(--neutral-light);
    border-radius: 8px;
    background: var(--neutral-lighter);
}
.df-preset-active {
    background: var(--primary-light);
    border-color: var(--primary);
}
.df-preset-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--neutral-dark);
}
.df-preset-meta {
    font-size: 12px;
    color: var(--neutral-secondary);
    margin-top: 2px;
}

/* DF4 — Dashboard */
.df-illo-dashboard { text-align: center; }
.df-chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 10px;
    height: 140px;
    padding: 10px 0;
    border-bottom: 1.5px solid var(--neutral-light);
    margin-bottom: 20px;
}
.df-bar {
    width: 32px;
    background: linear-gradient(180deg, var(--primary) 0%, #2b88d8 100%);
    border-radius: 4px 4px 0 0;
}
.df-metric { display: flex; flex-direction: column; gap: 2px; }
.df-metric-num {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}
.df-metric-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--neutral-secondary);
}

/* DF5 — Validation */
.df-illo-validation { display: flex; flex-direction: column; gap: 16px; }
.df-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: var(--neutral-lighter);
    border-radius: 8px;
}
.df-toggle-label { font-size: 14px; font-weight: 600; }
.df-toggle-switch {
    width: 40px;
    height: 22px;
    background: var(--neutral-quaternary);
    border-radius: 100px;
    position: relative;
}
.df-toggle-switch.on { background: var(--primary); }
.df-toggle-knob {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--white);
    border-radius: 50%;
    transition: transform 0.2s;
}
.df-toggle-switch.on .df-toggle-knob { transform: translateX(18px); }
.df-approve-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: var(--primary-light);
    border: 1.5px solid var(--primary);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
}
.df-approve-btns { display: flex; gap: 8px; }
.df-btn {
    width: 30px;
    height: 30px;
    border-radius: 6px;
    border: none;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}
.df-btn-approve { background: var(--success); color: var(--white); }
.df-btn-reject { background: #f3f2f1; color: var(--neutral-secondary); }

/* DF6 — Modes */
.df-illo-modes { display: flex; gap: 14px; justify-content: center; }
.df-mode-card {
    flex: 1;
    text-align: center;
    padding: 22px 14px;
    border: 2px solid var(--neutral-light);
    border-radius: 10px;
    background: var(--neutral-lighter);
}
.df-mode-card.df-mode-cloud {
    border-color: var(--primary);
    background: var(--primary-light);
}
.df-mode-icon { margin-bottom: 10px; }
.df-mode-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--neutral-dark);
    margin-bottom: 2px;
}
.df-mode-sub {
    font-size: 12px;
    color: var(--neutral-secondary);
}

/* ========== CRM SECTION ========== */
.section-crm {
    background: linear-gradient(135deg, #f8fbfe 0%, #eef5fc 100%);
    padding: 80px 0;
}
.section-crm .section-title {
    max-width: 780px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 32px;
}
.crm-text {
    max-width: 800px;
    margin: 0 auto 40px;
    text-align: center;
}
.crm-text p {
    font-size: 17px;
    line-height: 1.75;
    color: var(--neutral-primary);
    margin-bottom: 18px;
}
.crm-text p:last-child { margin-bottom: 0; }
.crm-list {
    list-style: none;
    padding: 0;
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.crm-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    font-size: 16px;
    font-weight: 500;
    color: var(--neutral-dark);
    transition: transform 0.2s ease;
}
.crm-list li:hover { transform: translateX(4px); }
.crm-list svg { flex-shrink: 0; }

/* ========== NO AI SECTION ========== */
.section-no-ai {
    background: var(--white);
    padding: 80px 0;
}
.no-ai-intro {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 48px;
    font-size: 17px;
    line-height: 1.7;
    color: var(--neutral-secondary);
    font-style: italic;
}
.no-ai-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.no-ai-card {
    background: var(--neutral-lighter);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: 36px 28px;
    text-align: center;
    transition: all 0.25s ease;
}
.no-ai-card:hover {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.no-ai-icon {
    margin-bottom: 20px;
    display: inline-flex;
}
.no-ai-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--neutral-dark);
    margin-bottom: 12px;
}
.no-ai-card-desc {
    font-size: 14px;
    line-height: 1.65;
    color: var(--neutral-secondary);
}

/* ========== FAMILY SECTION ========== */
.section-family {
    background: linear-gradient(180deg, var(--white) 0%, var(--neutral-lighter) 100%);
    padding: 80px 0;
    text-align: center;
}
.family-intro {
    max-width: 720px;
    margin: 0 auto 32px;
    font-size: 17px;
    line-height: 1.7;
    color: var(--neutral-secondary);
}

/* ========== GDPR SECTION ========== */
.section-gdpr {
    background: var(--neutral-lighter);
    padding: 80px 0;
}
.gdpr-intro {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 40px;
    font-size: 16px;
    line-height: 1.7;
    color: var(--neutral-secondary);
}
.gdpr-list {
    list-style: none;
    padding: 0;
    max-width: 820px;
    margin: 0 auto 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.gdpr-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 18px;
    background: var(--white);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    font-size: 14px;
    line-height: 1.55;
    color: var(--neutral-primary);
}
.gdpr-list svg {
    flex-shrink: 0;
    margin-top: 1px;
}
.gdpr-link {
    display: block;
    text-align: center;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
    text-decoration: underline;
}
.gdpr-link:hover { color: var(--primary-hover); }

/* ========== FAQ SECTION ========== */
.section-faq {
    background: var(--white);
    padding: 80px 0;
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: var(--neutral-lighter);
    border: 1px solid #edebe9;
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}
.faq-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}
.faq-item[open] {
    background: var(--white);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: var(--neutral-dark);
    list-style: none;
    user-select: none;
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question:hover { color: var(--primary); }
.faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    font-size: 20px;
    font-weight: 400;
    transition: transform 0.25s ease, background 0.2s ease;
}
.faq-item[open] .faq-icon {
    transform: rotate(45deg);
    background: var(--primary);
    color: var(--white);
}
.faq-answer {
    padding: 0 24px 20px 24px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--neutral-secondary);
}

/* ========== TRUST wide item ========== */
.trust-item-wide {
    grid-column: 1 / -1;
    justify-content: center;
    background: var(--primary-light);
    border: 1.5px solid var(--primary);
}
.trust-item-wide span { color: var(--primary-dark); }

/* ========== FOOTER tagline ========== */
.footer-tagline {
    font-size: 13px;
    color: var(--neutral-secondary);
    margin-top: 6px;
    max-width: 280px;
}
.footer-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* ========== RESPONSIVE ========== */

/* Tablet */
@media (max-width: 1024px) {
    .hero-inner {
        flex-direction: column;
        text-align: center;
    }
    .hero-visual { flex: none; width: 100%; max-width: 440px; }
    .hero-content { text-align: center; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-trust { justify-content: center; }
    .signup-form { max-width: 100%; margin: 0 auto; }
    .hero-title { font-size: 36px; }
}

/* Tablet — detailed features */
@media (max-width: 900px) {
    .df-block {
        grid-template-columns: 1fr;
        gap: 32px;
        margin-bottom: 64px;
    }
    .df-block-reverse .df-content { order: 2; }
    .df-block-reverse .df-visual { order: 1; }
    .df-content { text-align: center; }
    .df-list { text-align: left; max-width: 380px; margin: 0 auto; }
    .df-title { font-size: 24px; }

    .benefits-grid { grid-template-columns: 1fr; gap: 18px; }
    .no-ai-grid { grid-template-columns: 1fr; gap: 18px; }
    .gdpr-list { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .section { padding: 56px 0; }
    .section-gradient { padding: 56px 0; }
    .section-mission,
    .section-crm,
    .section-no-ai,
    .section-family,
    .section-gdpr { padding: 56px 0; }

    .launch-badge { font-size: 11px; padding: 5px 12px; }
    .logo-brand { font-size: 13px; }
    .logo-product { font-size: 9px; }

    .mission-text { font-size: 15px; margin-bottom: 40px; }
    .crm-text p { font-size: 15px; }
    .crm-list li { font-size: 14px; padding: 14px 16px; }
    .gdpr-list li { font-size: 13px; padding: 14px 16px; }
    .no-ai-intro { font-size: 15px; margin-bottom: 32px; }
    .df-title { font-size: 22px; }
    .df-desc { font-size: 15px; }

    .hero {
        padding: 100px 0 56px;
    }
    .hero-title { font-size: 30px; }
    .hero-subtitle { font-size: 16px; }
    .hero-visual { max-width: 340px; }

    .section-title { font-size: 26px; margin-bottom: 32px; }
    .section-subtitle,
    .section-subtitle-white { font-size: 16px; margin-top: -20px; margin-bottom: 28px; }

    .stats-grid { grid-template-columns: 1fr; gap: 16px; }
    .stat-card { padding: 28px 20px; }
    .stat-number { font-size: 40px; }

    .features-grid { grid-template-columns: 1fr; gap: 16px; }
    .feature-card { padding: 24px; }

    .steps { flex-direction: column; align-items: center; gap: 0; }
    .step { flex: none; width: 100%; max-width: 300px; margin-bottom: 8px; }
    .step-connector {
        width: 2px; height: 32px;
        flex: none;
        background: linear-gradient(180deg, var(--primary), var(--neutral-quaternary));
        margin: 0;
    }

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

    .benefits { flex-direction: column; align-items: center; gap: 16px; }

    .form-row { flex-direction: column; }
    .btn-lg { width: 100%; }

    .footer-inner { justify-content: center; text-align: center; }
    .footer-links { justify-content: center; }

    .mockup-sidebar { display: none; }
}

/* Small mobile */
@media (max-width: 400px) {
    .hero-title { font-size: 26px; }
    .hero-visual { display: none; }
}