/* ============================================================
   Postago.cz — Custom CSS
   Brand: #7c3aed (purple), Inter font
   ============================================================ */

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

:root {
    --purple: #7c3aed;
    --purple-dark: #5b21b6;
    --purple-light: #ede9fe;
    --purple-mid: #a78bfa;
    --text: #111827;
    --text-mid: #374151;
    --text-light: #6b7280;
    --border: #e5e7eb;
    --bg-light: #f9fafb;
    --bg-dark: #1e1148;
    --white: #ffffff;
    --green: #059669;
    --red: #dc2626;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(124,58,237,0.08);
    --shadow-lg: 0 8px 40px rgba(124,58,237,0.14);
    --transition: 0.22s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4,
.hero__heading,
.demo__heading,
.section-header h2,
.stats__heading,
.how__step h3,
.why__card h3,
.usecases__card h3,
.forwhom__col-header h3,
.proof__content h2,
.demo__form-title {
    font-family: 'Nunito', 'Inter', sans-serif;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}
.btn--primary {
    background: var(--purple);
    color: var(--white);
    box-shadow: 0 2px 12px rgba(124,58,237,0.25);
}
.btn--primary:hover {
    background: var(--purple-dark);
    box-shadow: 0 4px 20px rgba(124,58,237,0.35);
    transform: translateY(-1px);
}
.btn--ghost {
    background: transparent;
    color: var(--text);
    border: 1.5px solid var(--border);
}
.btn--ghost:hover {
    border-color: var(--purple);
    color: var(--purple);
    background: var(--purple-light);
}
.btn--lg { padding: 0.875rem 2rem; font-size: 1rem; }
.btn--full { width: 100%; }

/* TYPOGRAPHY HELPERS */
.eyebrow {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--purple);
    margin-bottom: 1rem;
}
.eyebrow--light { color: var(--purple-mid); }

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 3.5rem;
}
.section-header h2 {
    font-size: clamp(1.875rem, 4vw, 2.5rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--text);
    margin-bottom: 1rem;
}
.section-sub {
    font-size: 1.0625rem;
    color: var(--text-light);
    line-height: 1.7;
}

.link {
    color: var(--purple);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.link:hover { color: var(--purple-dark); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.nav.scrolled {
    border-color: var(--border);
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1160px;
    margin: 0 auto;
    padding: 1rem 2rem;
}
.nav__logo img { height: 36px; }
.nav__links {
    display: flex;
    gap: 1.5rem;
}
.nav__link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-mid);
    transition: color var(--transition);
}
.nav__link:hover { color: var(--purple); }
.nav__cta { display: flex; gap: 0.75rem; }

.nav__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav__hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
    display: none;
    flex-direction: column;
    padding: 1rem 2rem 1.5rem;
    border-top: 1px solid var(--border);
    background: var(--white);
}
.nav__mobile.open { display: flex; }
.nav__mobile-link {
    padding: 0.75rem 0;
    font-weight: 500;
    color: var(--text-mid);
    border-bottom: 1px solid var(--border);
}
.nav__mobile-cta { margin-top: 1.25rem; text-align: center; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    padding: 9rem 0 5rem;
    overflow: hidden;
    background: #ffffff;
    position: relative;
    z-index: 1;
}
.hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
}
.hero__content { max-width: 560px; }
.hero__heading {
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    font-weight: 800;
    line-height: 1.15;
    color: var(--text);
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}
.hero__sub {
    font-size: 1.125rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 2rem;
}
.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}
.hero__trust {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-mid);
    background: var(--purple-light);
    padding: 0.375rem 0.75rem;
    border-radius: 100px;
}
.hero__image {
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero__image img {
    display: block;
    width: 100%;
    max-width: 480px;
    filter: drop-shadow(0 16px 48px rgba(124,58,237,0.18));
    animation: floatImg 4s ease-in-out infinite;
}
@keyframes floatImg {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ============================================================
   STATS (dark section)
   ============================================================ */
.stats {
    background: var(--bg-dark);
    padding: 5rem 0;
}
.stats__intro {
    text-align: center;
    margin-bottom: 3.5rem;
}
.stats__label {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--purple-mid);
    margin-bottom: 0.75rem;
}
.stats__heading {
    font-size: clamp(1.75rem, 3.5vw, 2.25rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 0.75rem;
}
.stats__sub {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.55);
    max-width: 520px;
    margin: 0 auto;
}
.stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.stats__item {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    padding: 2.25rem 1.75rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease, background 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    cursor: default;
}
.stats__item.visible {
    opacity: 1;
    transform: translateY(0);
}
.stats__item:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(124,58,237,0.5);
    box-shadow: 0 8px 32px rgba(0,0,0,0.25);
    transform: translateY(-4px) !important;
}
.stats__item:hover .stats__number {
    color: var(--purple-mid);
    transition: color 0.22s ease;
}
.stats__item:nth-child(2) { transition-delay: 0.1s; }
.stats__item:nth-child(3) { transition-delay: 0.2s; }
.stats__item:nth-child(4) { transition-delay: 0.3s; }
.stats__number {
    font-family: 'Nunito', sans-serif;
    font-size: 4.5rem;
    font-weight: 900;
    color: var(--white);
    line-height: 1;
    margin-bottom: 1rem;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}
.stats__desc {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
    margin-bottom: 0.875rem;
}
.stats__desc strong { color: var(--white); }
.stats__source {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.35);
    font-style: italic;
}

/* ============================================================
   WHY IT WORKS
   ============================================================ */
.why {
    padding: 6rem 0;
    background: var(--white);
}
.why__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.why__card {
    background: var(--bg-light);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 2.25rem 2rem;
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition), background var(--transition);
}
.why__card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--purple);
    background: var(--white);
}
.why__card:hover .why__icon {
    background: var(--purple);
}
.why__card:hover .why__icon svg {
    filter: brightness(0) invert(1);
}
.why__icon {
    width: 56px;
    height: 56px;
    background: var(--purple-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.375rem;
    transition: background var(--transition);
}
.why__card h3 {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 0.75rem;
}
.why__card p {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how {
    padding: 6rem 0;
    background: var(--bg-light);
}
.how__steps {
    display: grid;
    grid-template-columns: 1fr 56px 1fr 56px 1fr 56px 1fr;
    gap: 0 0.5rem;
    align-items: start;
}
.how__step {
    background: var(--white);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 2.25rem 1.75rem;
    text-align: center;
    transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition), background var(--transition);
}
.how__step:hover {
    border-color: var(--purple);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    background: #faf8ff;
}
.how__step:hover .how__step-bubble {
    transform: scale(1.12);
    box-shadow: 0 8px 24px rgba(124,58,237,0.45);
    background: var(--purple-dark);
}
.how__step-bubble {
    width: 56px;
    height: 56px;
    background: var(--purple);
    color: var(--white);
    font-family: 'Nunito', sans-serif;
    font-size: 1.25rem;
    font-weight: 900;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.375rem;
    box-shadow: 0 4px 16px rgba(124,58,237,0.3);
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.how__step h3 {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 0.625rem;
}
.how__step p {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.7;
}
.how__arrow {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 1.4rem;
}
/* desktop: show right arrow, hide down arrow */
.how__arrow--down { display: none; }

/* ============================================================
   USE CASES
   ============================================================ */
.usecases {
    padding: 6rem 0;
    background: var(--white);
}
.usecases__top {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 3.5rem;
    gap: 2rem;
}
.section-header--left {
    text-align: left;
    margin: 0;
}
.usecases__deco {
    width: 160px;
    flex-shrink: 0;
    filter: drop-shadow(0 8px 24px rgba(124,58,237,0.12));
}
.usecases__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}
.usecases__card {
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 2.25rem 2rem;
    transition: all var(--transition);
    position: relative;
    background: var(--white);
}
.usecases__card:hover {
    border-color: var(--purple);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    background: #faf8ff;
}
.usecases__card:hover .usecases__icon {
    background: var(--purple);
}
.usecases__card:hover .usecases__icon svg {
    filter: brightness(0) invert(1);
}
.usecases__card:hover .usecases__tag {
    background: var(--purple);
    color: var(--white);
}
.usecases__icon {
    width: 48px;
    height: 48px;
    background: var(--purple-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    transition: background var(--transition);
}
.usecases__tag {
    transition: background var(--transition), color var(--transition);
}
.usecases__card h3 {
    font-size: 1.1875rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 0.625rem;
}
.usecases__card p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}
.usecases__tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--purple);
    background: var(--purple-light);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
}

/* ============================================================
   B2B / KLASICKÁ FIRMA
   ============================================================ */
.b2b {
    padding: 6rem 0;
    background: var(--bg-dark);
}
.b2b__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}
.b2b .eyebrow { color: var(--purple-mid); }
.b2b__content h2 {
    font-size: clamp(1.875rem, 3.5vw, 2.375rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 1rem;
}
.b2b__intro {
    font-size: 1rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
    margin-bottom: 2rem;
}
.b2b__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.125rem;
    margin-bottom: 2.5rem;
}
.b2b__list li {
    display: flex;
    gap: 0.875rem;
    align-items: flex-start;
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.75);
    line-height: 1.6;
}
.b2b__list li strong { color: var(--white); }
.b2b__list-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    background: rgba(124,58,237,0.35);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
}
.b2b__cards {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.b2b__card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: background var(--transition), border-color var(--transition);
}
.b2b__card:hover {
    background: rgba(255,255,255,0.09);
    border-color: rgba(124,58,237,0.5);
}
.b2b__card-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--purple-mid);
    background: rgba(124,58,237,0.2);
    padding: 0.2rem 0.625rem;
    border-radius: 100px;
    margin-bottom: 0.875rem;
}
.b2b__card p {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.65;
    font-style: italic;
    margin-bottom: 0.75rem;
}
.b2b__card-note {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.3);
}

/* ============================================================
   PROOF / CASE STUDY
   ============================================================ */
.proof {
    padding: 6rem 0;
    background: var(--bg-light);
}
.proof__grid {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 4rem;
    align-items: center;
}
.proof__content h2 {
    font-size: clamp(1.875rem, 3.5vw, 2.5rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--text);
    margin-bottom: 1rem;
}
.proof__intro {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 2rem;
}
.proof__case {
    background: var(--white);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}
.proof__case-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.proof__case-badge {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--purple);
    background: var(--purple-light);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
}
.proof__case-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text);
}
.proof__case-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.25rem;
}
.proof__case-number {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--purple);
    line-height: 1;
    margin-bottom: 0.25rem;
}
.proof__case-label {
    font-size: 0.8125rem;
    color: var(--text-light);
    font-weight: 500;
}
.proof__case-desc {
    font-size: 0.9rem;
    color: var(--text-mid);
    line-height: 1.7;
    margin-bottom: 1rem;
}
.proof__case-source {
    font-size: 0.75rem;
    color: var(--text-light);
    font-style: italic;
}
.proof__pilot {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    background: var(--purple-light);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
}
.proof__pilot-icon {
    flex-shrink: 0;
    margin-top: 2px;
}
.proof__pilot strong {
    display: block;
    font-size: 0.9375rem;
    color: var(--text);
    margin-bottom: 0.25rem;
}
.proof__pilot p {
    font-size: 0.875rem;
    color: var(--text-mid);
    line-height: 1.6;
}
.proof__image {
    display: flex;
    justify-content: center;
    align-items: center;
}
.proof__image img {
    width: 100%;
    max-width: 380px;
    filter: drop-shadow(0 12px 32px rgba(124,58,237,0.14));
}

/* ============================================================
   FOR WHOM
   ============================================================ */
.forwhom {
    padding: 6rem 0;
    background: var(--white);
}
.forwhom__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}
.forwhom__col {
    border-radius: var(--radius);
    padding: 2.5rem;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.forwhom__col--yes {
    background: #f0fdf4;
    border: 1.5px solid #bbf7d0;
}
.forwhom__col--yes:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(5,150,105,0.12);
    border-color: #4ade80;
}
.forwhom__col--no {
    background: #fff5f5;
    border: 1.5px solid #fecaca;
}
.forwhom__col--no:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(220,38,38,0.08);
    border-color: #f87171;
}
.forwhom__col-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.75rem;
}
.forwhom__col-header h3 {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
}
.forwhom__list li {
    transition: background var(--transition), padding-left var(--transition);
    border-radius: 6px;
    padding: 0.375rem 0.5rem 0.375rem 1.625rem;
    margin-left: -0.5rem;
}
.forwhom__col--yes .forwhom__list li:hover {
    background: rgba(5,150,105,0.07);
}
.forwhom__col--no .forwhom__list li:hover {
    background: rgba(220,38,38,0.05);
}
.forwhom__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.forwhom__list li {
    font-size: 0.9375rem;
    color: var(--text-mid);
    position: relative;
    line-height: 1.5;
}
.forwhom__col--yes .forwhom__list li::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0.75rem;
    width: 6px;
    height: 6px;
    background: var(--green);
    border-radius: 50%;
}
.forwhom__col--no .forwhom__list li::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0.75rem;
    width: 6px;
    height: 6px;
    background: var(--red);
    border-radius: 50%;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq {
    padding: 6rem 0;
    background: var(--bg-light);
}
.faq__list {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--white);
}
.faq__item {
    border-bottom: 1px solid var(--border);
}
.faq__item:last-child { border-bottom: none; }
.faq__question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 1.5rem 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    transition: background var(--transition);
}
.faq__question:hover { background: var(--bg-light); }
.faq__question[aria-expanded="true"] { color: var(--purple); }
.faq__arrow {
    flex-shrink: 0;
    transition: transform var(--transition);
}
.faq__question[aria-expanded="true"] .faq__arrow { transform: rotate(180deg); }
.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.faq__answer p {
    margin: 0;
    padding: 0.25rem 1.75rem 1.5rem;
    font-size: 0.9375rem;
    color: var(--text-mid);
    line-height: 1.7;
}

/* ============================================================
   DEMO FORM
   ============================================================ */
.demo {
    padding: 6rem 0;
    background: var(--bg-dark);
}
.demo__grid {
    display: grid;
    grid-template-columns: 1fr 520px;
    gap: 5rem;
    align-items: start;
}
.demo__content .eyebrow { color: var(--purple-mid); }
.demo__heading {
    font-size: clamp(1.875rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 1.25rem;
}
.demo__sub {
    font-size: 1rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    margin-bottom: 2rem;
}
.demo__points {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}
.demo__point {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.8);
    font-weight: 500;
}
.demo__form-wrap {
    background: var(--white);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: 0 24px 64px rgba(0,0,0,0.25);
}
.demo__form-title {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text);
    line-height: 1.15;
    margin-bottom: 1rem;
}
.demo__form-note {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 700;
    color: #065f46;
    background: #d1fae5;
    border: 1px solid #6ee7b7;
    border-radius: 100px;
    padding: 0.4rem 0.875rem;
    margin-bottom: 1.75rem;
}
.demo__form-note::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 0 3px rgba(16,185,129,0.2);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 3px rgba(16,185,129,0.2); }
    50% { box-shadow: 0 0 0 6px rgba(16,185,129,0.08); }
}
.demo__illustration {
    margin-top: 2.5rem;
    display: flex;
    justify-content: flex-start;
}
.demo__illustration img {
    width: 260px;
    filter: drop-shadow(0 20px 48px rgba(0,0,0,0.35));
    animation: floatImg 4s ease-in-out infinite;
}
.demo__form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: relative;
}
.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}
.form-field label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
}
.optional {
    font-weight: 400;
    color: var(--text-light);
}
.form-field input,
.form-field textarea {
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--text);
    background: var(--white);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    resize: vertical;
}
.form-field input:focus,
.form-field textarea:focus {
    border-color: var(--purple);
    box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: #9ca3af; }
.form-privacy {
    font-size: 0.75rem;
    color: var(--text-light);
    line-height: 1.5;
    margin-top: -0.5rem;
}
.form-success {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    background: #f0fdf4;
    border: 1.5px solid #bbf7d0;
    border-radius: var(--radius-sm);
    padding: 1rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--green);
    margin-top: 0.5rem;
}
.form-success.show { display: flex; }

/* ============================================================
   BLOG / INSIGHTS
   ============================================================ */
.blog {
    padding: 6rem 0;
    background: var(--bg-light);
}
.blog__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 3rem;
}
.blog__header h2 {
    font-size: clamp(1.875rem, 3.5vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 0.75rem;
}
.blog__header-img {
    width: 140px;
    flex-shrink: 0;
    filter: drop-shadow(0 8px 24px rgba(124,58,237,0.14));
}

/* Featured article */
.blog__featured {
    display: grid;
    grid-template-columns: 1fr 340px;
    background: var(--bg-dark);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 1.5rem;
    transition: box-shadow var(--transition), transform var(--transition);
}
.blog__featured:hover {
    box-shadow: 0 16px 48px rgba(0,0,0,0.22);
    transform: translateY(-3px);
}
.blog__featured-content {
    padding: 2.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.blog__featured-title {
    font-family: 'Nunito', sans-serif;
    font-size: clamp(1.375rem, 2.5vw, 1.75rem);
    font-weight: 900;
    color: var(--white);
    line-height: 1.25;
}
.blog__featured-excerpt {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
}
.blog__featured-visual {
    background: linear-gradient(135deg, rgba(124,58,237,0.35) 0%, rgba(91,33,182,0.6) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 2rem;
}
.blog__featured-quote {
    font-family: 'Nunito', sans-serif;
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--white);
    text-align: center;
    line-height: 1.4;
}
.blog__featured-q {
    display: block;
    font-size: 3rem;
    color: var(--purple-mid);
    line-height: 0.5;
    margin-bottom: 0.5rem;
}
.blog__featured-q:last-child {
    line-height: 1.5;
    margin-bottom: 0;
    margin-top: 0.25rem;
}

/* Secondary cards */
.blog__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}
.blog__card {
    background: var(--white);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.blog__card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--purple);
}
.blog__card-tag {
    display: inline-block;
    font-size: 0.725rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    margin-bottom: 1rem;
    width: fit-content;
}
.blog__card-tag--purple { background: var(--purple-light); color: var(--purple-dark); }
.blog__card-tag--orange { background: #fff7ed; color: #c2410c; }
.blog__card-tag--blue   { background: #eff6ff; color: #1d4ed8; }
.blog__card-title {
    font-family: 'Nunito', sans-serif;
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.35;
    margin-bottom: 0.75rem;
    flex-grow: 1;
}
.blog__card-excerpt {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1.375rem;
    flex-grow: 2;
}
.blog__card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--purple);
    margin-top: auto;
    transition: gap var(--transition), color var(--transition);
}
.blog__card-link:hover { color: var(--purple-dark); gap: 0.625rem; }

/* ============================================================
   ARTICLE PAGE
   ============================================================ */
.article-hero {
    padding: 9rem 0 4rem;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}
.article-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--purple);
    margin-bottom: 1.5rem;
    transition: gap var(--transition);
}
.article-breadcrumb:hover { gap: 0.75rem; }
.article-hero__tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 0.25rem 0.875rem;
    border-radius: 100px;
    margin-bottom: 1.25rem;
}
.article-hero__title {
    font-family: 'Nunito', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    color: var(--text);
    line-height: 1.15;
    max-width: 780px;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}
.article-hero__meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}
.article-hero__meta span {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}
.article-body {
    padding: 4rem 0 6rem;
}
.article-body__inner {
    max-width: 720px;
    margin: 0 auto;
}
.article-body__inner p {
    font-size: 1.0625rem;
    color: var(--text-mid);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}
.article-body__inner h2 {
    font-family: 'Nunito', sans-serif;
    font-size: 1.625rem;
    font-weight: 800;
    color: var(--text);
    margin: 2.5rem 0 1rem;
    line-height: 1.25;
}
.article-body__inner h3 {
    font-family: 'Nunito', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
    margin: 2rem 0 0.75rem;
}
.article-body__inner ul, .article-body__inner ol {
    margin: 0 0 1.5rem 1.5rem;
}
.article-body__inner li {
    font-size: 1.0625rem;
    color: var(--text-mid);
    line-height: 1.7;
    margin-bottom: 0.5rem;
}
.article-body__inner strong { color: var(--text); font-weight: 700; }
.article-body__inner blockquote {
    border-left: 3px solid var(--purple);
    padding: 1rem 1.5rem;
    margin: 2rem 0;
    background: var(--purple-light);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--text-mid);
}
.article-body__inner hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2.5rem 0;
}
.article-cta {
    background: var(--bg-dark);
    border-radius: var(--radius);
    padding: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}
.article-cta__text strong {
    display: block;
    font-family: 'Nunito', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 0.375rem;
}
.article-cta__text p {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.6);
    margin: 0;
}
.article-related {
    padding: 4rem 0;
    background: var(--bg-light);
    border-top: 1px solid var(--border);
}
.article-related h3 {
    font-family: 'Nunito', sans-serif;
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 1.5rem;
}
.article-related__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: #f3f4f6;
    padding: 4rem 0 2rem;
}
.footer__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
    align-items: start;
}
.footer__logo img { height: 36px; margin-bottom: 1rem; }
.footer__tagline {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    max-width: 300px;
}
.footer__nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}
.footer__nav-title {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 1rem;
}
.footer__link {
    display: block;
    font-size: 0.9rem;
    color: var(--text-mid);
    margin-bottom: 0.625rem;
    transition: color var(--transition);
}
.footer__link:hover { color: var(--purple); }
.footer__bottom {
    border-top: 1px solid var(--border);
    padding-top: 2rem;
    text-align: center;
}
.footer__copy {
    font-size: 0.8125rem;
    color: var(--text-light);
}
.footer__link--name {
    font-weight: 700;
    color: var(--text);
}
.footer__link--name:hover { color: var(--purple); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .stats__grid { grid-template-columns: repeat(2, 1fr); }
    .proof__grid { grid-template-columns: 1fr; }
    .proof__image { order: -1; }
    .proof__image img { max-width: 280px; margin: 0 auto; }
    .demo__grid { grid-template-columns: 1fr; gap: 3rem; }
    .b2b__grid { grid-template-columns: 1fr; gap: 3rem; }
    .blog__grid { grid-template-columns: repeat(2, 1fr); }
    /* process: 2 columns on tablet */
    .how__steps {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    .how__arrow { display: none; }
}

@media (max-width: 768px) {
    .nav__links, .nav__cta { display: none; }
    .nav__hamburger { display: flex; }

    .hero { padding: 7rem 0 4rem; }
    .hero__grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .hero__image { order: -1; }
    .hero__image img { max-width: 280px; margin: 0 auto; }

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

    /* process: single column with down arrows on mobile */
    .how__steps {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .how__arrow {
        display: flex;
        padding-top: 0;
        padding: 0.375rem 0;
    }
    .how__arrow > svg:first-child { display: none; }
    .how__arrow--down { display: block; }

    .why__grid { grid-template-columns: 1fr; }
    .usecases__top { flex-direction: column; align-items: flex-start; }
    .usecases__deco { display: none; }
    .usecases__grid { grid-template-columns: 1fr; }
    .forwhom__grid { grid-template-columns: 1fr; }
    .blog__header { flex-direction: column; align-items: flex-start; }
    .blog__header-img { display: none; }
    .blog__featured { grid-template-columns: 1fr; }
    .blog__featured-visual { display: none; }
    .blog__grid { grid-template-columns: 1fr; }
    .article-related__grid { grid-template-columns: 1fr; }
    .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer__nav { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; }
    .stats__grid { grid-template-columns: 1fr; }
    .stats__number { font-size: 3rem; }
    .hero__actions { flex-direction: column; }
    .how__step { flex-direction: column; gap: 1rem; }
    .how__step-num { font-size: 2rem; min-width: auto; }
    .demo__form-wrap { padding: 1.75rem; }
    .demo__illustration { display: none; }
    .footer__nav { grid-template-columns: 1fr; }
}