*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --navy:        #1e2a6e;
    --navy-mid:    #2d3a8c;
    --accent:      #4f5de4;
    --accent-lt:   #7986cb;
    --red:         #ef5350;
    --green:       #43a047;
    --text:        #666;
    --text-lt:     #aaa;
    --bg:          #f7f8ff;
    --border:      #e8eaf0;
    --white:       #ffffff;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.6;
}

/* ── NAV ── */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: 70px;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 3rem;
}
.nav-logo {
    font-size: 1.45rem; font-weight: 900; color: var(--navy);
    text-decoration: none; letter-spacing: -0.5px;
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 2.25rem; list-style: none; }
.nav-links a {
    text-decoration: none; color: var(--text);
    font-size: 0.875rem; font-weight: 500; transition: color .2s;
}
.nav-links a:hover { color: var(--navy); }
.nav-cta {
    display: flex; align-items: center; gap: .5rem;
    font-size: 0.78rem; font-weight: 700; letter-spacing: .1em;
    text-transform: uppercase; color: var(--navy); text-decoration: none;
    transition: color .2s;
}
.nav-cta:hover { color: var(--accent); }
.hamburger {
    display: none; background: none; border: none;
    cursor: pointer; color: var(--navy); font-size: 1.2rem;
}

/* mobile menu */
.mobile-menu {
    position: fixed; top: 70px; left: 0; right: 0;
    background: white; border-bottom: 1px solid var(--border);
    padding: 1.75rem 2rem; z-index: 998;
    box-shadow: 0 8px 24px rgba(0,0,0,.06);
}
.mobile-menu ul { list-style: none; display: flex; flex-direction: column; gap: 1.1rem; }
.mobile-menu a {
    text-decoration: none; color: var(--navy);
    font-weight: 600; font-size: 0.95rem;
}

/* ── BUTTONS ── */
.btn-primary {
    display: inline-flex; align-items: center; gap: .65rem;
    background: var(--navy); color: white;
    padding: .85rem 1.9rem; border: 2px solid var(--navy);
    font-size: .78rem; font-weight: 700; letter-spacing: .1em;
    text-transform: uppercase; text-decoration: none; cursor: pointer;
    transition: all .2s; font-family: 'Inter', sans-serif;
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); }
.btn-outline {
    display: inline-flex; align-items: center; gap: .65rem;
    background: transparent; color: var(--navy);
    padding: .85rem 1.9rem; border: 2px solid var(--navy);
    font-size: .78rem; font-weight: 700; letter-spacing: .1em;
    text-transform: uppercase; text-decoration: none; cursor: pointer;
    transition: all .2s; font-family: 'Inter', sans-serif;
}
.btn-outline:hover { background: var(--navy); color: white; }
.btn-white {
    display: inline-flex; align-items: center; gap: .65rem;
    background: white; color: var(--navy);
    padding: .85rem 1.9rem; border: 2px solid white;
    font-size: .78rem; font-weight: 700; letter-spacing: .1em;
    text-transform: uppercase; text-decoration: none; cursor: pointer;
    transition: all .2s; font-family: 'Inter', sans-serif;
}
.btn-white:hover { background: transparent; color: white; }

/* ── HERO ── */
.hero-wrap { padding-top: 70px; }
.hero {
    max-width: 1200px; margin: 0 auto;
    padding: 80px 3rem 60px;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 4rem; align-items: center; min-height: calc(100vh - 70px);
}
.hero-eyebrow {
    font-size: .72rem; font-weight: 700; letter-spacing: .2em;
    text-transform: uppercase; color: var(--accent); margin-bottom: 1.1rem;
}
.hero h1 {
    font-size: clamp(2.4rem, 4.5vw, 3.6rem);
    font-weight: 800; line-height: 1.08; color: var(--navy);
    margin-bottom: 1.5rem;
}
.hero h1 strong { font-weight: 900; }
.hero-sub {
    font-size: 1.05rem; color: var(--text); max-width: 480px;
    margin-bottom: 2.5rem; line-height: 1.75;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

@keyframes float {
    0%,100% { transform: translateY(0); }
    50%      { transform: translateY(-10px); }
}
.hero-visual { display: flex; justify-content: center; align-items: center; }

/* ── STATS ── */
.stats-section {
    background: var(--navy);
    padding: 4rem 3rem;
}
.stats-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center;
}
.stat-item {
    flex: 1; text-align: center; padding: 0 2rem;
}
.stat-val {
    font-size: 1.75rem; font-weight: 900;
    color: white; line-height: 1.2;
    letter-spacing: -0.01em; margin: 0 0 .5rem;
}
.stat-lbl {
    font-size: .8rem; font-weight: 500;
    color: rgba(255,255,255,0.55);
    text-transform: uppercase; letter-spacing: .08em; margin: 0;
}
.stat-divider {
    width: 1px; height: 48px;
    background: rgba(255,255,255,0.15); flex-shrink: 0;
}

/* ── SECTION COMMON ── */
.section-title {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 900; color: var(--navy); line-height: 1.1;
}
.section-desc { color: var(--text); font-size: .95rem; line-height: 1.8; }

/* ── PROBLEM ── */
.problem-section { background: var(--bg); padding: 7rem 3rem; }
.problem-inner { max-width: 1200px; margin: 0 auto; }
.problem-header {
    text-align: center; max-width: 720px;
    margin: 0 auto 4rem;
}
.problem-header .hero-eyebrow { margin-bottom: 1rem; }
.problem-header .section-desc { margin-top: 1.25rem; }
.problem-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem; margin-bottom: 2.5rem;
}
.problem-card {
    background: white; padding: 2.5rem 2rem;
    border: 1px solid var(--border);
    border-top: 3px solid var(--red);
    transition: transform .25s, box-shadow .25s;
}
.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(239,83,80,.1);
}
.problem-card h3 {
    font-size: .82rem; font-weight: 700; letter-spacing: .08em;
    text-transform: uppercase; color: var(--navy);
    margin-bottom: .9rem; line-height: 1.4;
}
.problem-card p { font-size: .9rem; line-height: 1.75; }
.problem-bridge {
    background: white; border: 1px solid var(--border);
    padding: 2.5rem; text-align: center;
    display: flex; flex-direction: column; align-items: center; gap: 1.5rem;
}
.problem-bridge p {
    font-size: 1rem; font-weight: 600; color: var(--navy);
    max-width: 600px; line-height: 1.7;
}

/* ── FEATURES ── */
.features-section { padding: 7rem 3rem; max-width: 1200px; margin: 0 auto; }
.section-header {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 3rem; align-items: end; margin-bottom: 4rem;
}
.features-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem;
}
.feature-card {
    background: var(--bg); padding: 2.5rem 2rem;
    border: 1px solid var(--border);
    transition: transform .25s, box-shadow .25s;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(79,93,228,.12);
}
.feature-card h3 {
    font-size: .82rem; font-weight: 700; letter-spacing: .1em;
    text-transform: uppercase; color: var(--navy); margin-bottom: .9rem;
}
.feature-card p { font-size: .9rem; line-height: 1.75; }

/* ── STEPS ── */
.steps-wrap { display: flex; flex-direction: column; gap: 0; }
.step-card {
    background: white; border: 1px solid var(--border);
    border-radius: 8px; padding: 1.75rem 1.5rem;
    display: flex; align-items: center; gap: 1.25rem;
    position: relative;
}
.step-num {
    width: 54px; height: 54px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: 900; flex-shrink: 0;
}
.step-body h4 {
    font-size: .82rem; font-weight: 700; letter-spacing: .08em;
    text-transform: uppercase; color: var(--navy); margin-bottom: .4rem;
}
.step-body p { font-size: .9rem; color: var(--text); line-height: 1.65; }
.step-check {
    margin-left: auto; width: 36px; height: 36px; border-radius: 50%;
    background: #43a047; display: flex; align-items: center;
    justify-content: center; color: white; font-size: .85rem; flex-shrink: 0;
}
.step-connector {
    text-align: center; padding: .5rem 0;
    color: var(--accent); font-size: .85rem; opacity: .7;
}
.step-footer {
    margin-top: .75rem; background: rgba(30,42,110,.05);
    border-radius: 20px; padding: .55rem 1rem;
    text-align: center; font-size: .7rem; font-weight: 700;
    letter-spacing: .1em; color: var(--navy); opacity: .6;
}

/* ── HOW IT WORKS ── */
.how-section { padding: 7rem 3rem; background: var(--bg); }
.how-inner { max-width: 900px; margin: 0 auto; }
.how-inner .section-header {
    grid-template-columns: 1fr;
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}
.steps-row {
    position: relative;
    display: flex;
    justify-content: space-between;
    gap: 2rem;
}
.steps-row::before {
    content: '';
    position: absolute;
    top: 28px;
    left: 16.67%; right: 16.67%;
    height: 1px;
    background: rgba(79,93,228,.2);
}
.step-item {
    flex: 1; display: flex; flex-direction: column;
    align-items: center; text-align: center;
    position: relative; z-index: 1;
}
.step-num {
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--navy); color: white;
    font-size: 1rem; font-weight: 900; letter-spacing: .04em;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.5rem; flex-shrink: 0;
}
.step-item h3 {
    font-size: .82rem; font-weight: 700; letter-spacing: .08em;
    text-transform: uppercase; color: var(--navy); margin-bottom: .75rem;
}
.step-item p { font-size: .88rem; line-height: 1.7; color: var(--text); }
.feat-list {
    list-style: none;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 2rem; margin-top: 4rem;
    padding-top: 3rem; border-top: 1px solid var(--border);
}
.feat-list li { display: flex; flex-direction: column; gap: .35rem; }
.feat-list h4 {
    font-size: .8rem; font-weight: 700; letter-spacing: .06em;
    text-transform: uppercase; color: var(--navy);
}
.feat-list p { font-size: .875rem; line-height: 1.7; }

/* ── POWERFUL TOOLS (alt section) ── */
.powerful-section { padding: 7rem 3rem; max-width: 1200px; margin: 0 auto; }
.powerful-inner {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 5rem; align-items: center;
}
.circles-wrap { position: relative; }
.powerful-content .section-title { margin-bottom: 1rem; }
.powerful-intro { color: var(--text); line-height: 1.8; margin-bottom: 1.75rem; font-size: .95rem; }
.check-list { list-style: none; display: flex; flex-direction: column; gap: .85rem; margin-bottom: 2rem; }
.check-list li {
    display: flex; align-items: flex-start; gap: .75rem;
    font-size: .92rem; color: var(--text);
}
.check-list li i { color: var(--accent); margin-top: 3px; font-size: .9rem; }

/* ── USE CASES ── */
.usecases-section { padding: 7rem 3rem; background: var(--bg); }
.usecases-inner { max-width: 1200px; margin: 0 auto; }
.usecases-header { margin-bottom: 3.5rem; }
.usecases-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.75rem;
}
.usecase-card {
    background: white; border: 1px solid var(--border);
    padding: 2.25rem 2rem;
    transition: transform .25s, box-shadow .25s;
}
.usecase-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(79,93,228,.1);
}
.usecase-tag {
    font-size: .68rem; font-weight: 700; letter-spacing: .14em;
    text-transform: uppercase; color: var(--accent); margin-bottom: .6rem;
}
.usecase-card h3 {
    font-size: 1rem; font-weight: 700; color: var(--navy);
    line-height: 1.4; margin-bottom: .9rem;
}
.usecase-card p { font-size: .88rem; line-height: 1.75; margin-bottom: 1.25rem; }
.usecase-list { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.usecase-list li {
    display: flex; align-items: center; gap: .6rem;
    font-size: .84rem; color: var(--text);
}
.usecase-list li i { color: var(--accent); font-size: .75rem; flex-shrink: 0; }

/* ── DEMO CTA ── */
.demo-section {
    background: var(--navy); padding: 6rem 3rem;
    text-align: center; position: relative; overflow: hidden;
}
.demo-section::before {
    content: ''; position: absolute; top: -60%; left: -15%;
    width: 55%; height: 220%; border-radius: 50%;
    background: rgba(79,93,228,.18);
}
.demo-section::after {
    content: ''; position: absolute; top: -60%; right: -15%;
    width: 45%; height: 220%; border-radius: 50%;
    background: rgba(79,93,228,.12);
}
.demo-inner { position: relative; z-index: 1; max-width: 580px; margin: 0 auto; }
.demo-section h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 900; color: white; margin-bottom: 1rem;
}
.demo-section p { color: rgba(255,255,255,.7); margin-bottom: 2.5rem; font-size: 1rem; }

/* ── FAQ ── */
.faq-section { padding: 7rem 3rem; max-width: 900px; margin: 0 auto; }
.faq-section .section-title { text-align: center; margin-bottom: 3rem; }
.faq-item { border: 1px solid var(--border); margin-bottom: 1rem; }
.faq-q {
    padding: 1.25rem 1.5rem; cursor: pointer;
    display: flex; justify-content: space-between; align-items: center;
    color: var(--navy); font-weight: 500; font-size: .92rem; user-select: none;
}
.faq-a { padding: 0 1.5rem 1.25rem; font-size: .88rem; line-height: 1.75; }

/* ── CONTACT ── */
.contact-section { padding: 7rem 3rem; background: var(--bg); }
.contact-inner {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr 1fr; gap: 4rem;
}
.contact-form-wrap {
    background: white; padding: 3rem;
    border: 1px solid var(--border);
    box-shadow: 0 4px 30px rgba(0,0,0,.05);
}
.contact-form-wrap h2 { font-size: 1.4rem; font-weight: 800; color: var(--navy); margin-bottom: 2rem; }
.form-group { margin-bottom: 1.5rem; }
.form-group input,
.form-group textarea {
    width: 100%; border: none; border-bottom: 1px solid var(--border);
    padding: .7rem 0; font-family: 'Inter', sans-serif;
    font-size: .88rem; color: var(--navy);
    background: transparent; outline: none; transition: border-color .2s;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-lt); }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: none; height: 80px; }
.contact-info h2 { font-size: 1.4rem; font-weight: 800; color: var(--navy); margin-bottom: 2rem; }
.c-item { margin-bottom: 1.75rem; }
.c-label {
    font-size: .7rem; font-weight: 700; letter-spacing: .12em;
    text-transform: uppercase; color: var(--accent); margin-bottom: .35rem;
}
.c-item p { font-size: .88rem; color: var(--text); line-height: 1.7; }

/* ── FOOTER ── */
footer { padding: 5rem 3rem 2rem; border-top: 1px solid var(--border); }
.footer-grid {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: 3rem; margin-bottom: 3rem;
}
.footer-brand .nav-logo { display: block; margin-bottom: 1rem; }
.footer-brand p { font-size: .875rem; color: var(--text); line-height: 1.75; }
.footer-col h4 {
    font-size: .7rem; font-weight: 700; letter-spacing: .12em;
    text-transform: uppercase; color: var(--navy); margin-bottom: 1.25rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .7rem; }
.footer-col ul a { text-decoration: none; color: var(--text); font-size: .875rem; transition: color .2s; }
.footer-col ul a:hover { color: var(--navy); }
.footer-nl h4 {
    font-size: .7rem; font-weight: 700; letter-spacing: .12em;
    text-transform: uppercase; color: var(--navy); margin-bottom: .75rem;
}
.footer-nl p { font-size: .875rem; color: var(--text); margin-bottom: 1.25rem; }
.nl-form { display: flex; flex-direction: column; gap: .75rem; }
.nl-form input {
    border: none; border-bottom: 1px solid var(--border);
    padding: .5rem 0; font-family: 'Inter', sans-serif;
    font-size: .875rem; outline: none; background: transparent;
}
.footer-bottom {
    max-width: 1200px; margin: 0 auto; padding-top: 2rem;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
}
.footer-bottom p { font-size: .78rem; color: var(--text-lt); }
.socials { display: flex; gap: .6rem; }
.socials a {
    width: 34px; height: 34px; border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    color: var(--text); text-decoration: none; font-size: .78rem;
    transition: all .2s;
}
.socials a:hover { background: var(--navy); color: white; border-color: var(--navy); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
    .stats-inner   { flex-wrap: wrap; gap: 2rem; }
    .stat-divider  { display: none; }
    .problem-grid  { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid   { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    nav { padding: 0 1.5rem; }
    .nav-links, .nav-cta { display: none; }
    .hamburger { display: block; }

    .hero { grid-template-columns: 1fr; padding: 60px 1.5rem 40px; min-height: auto; }
    .hero-visual { display: none; }
    .section-header { grid-template-columns: 1fr; gap: 1rem; }
    .features-grid { grid-template-columns: 1fr; }
    .steps-row { flex-direction: column; align-items: center; gap: 2.5rem; }
    .steps-row::before { display: none; }
    .step-item { max-width: 320px; }
    .feat-list { grid-template-columns: 1fr; }
    .powerful-inner { grid-template-columns: 1fr; }
    .circles-wrap { display: none; }
    .usecases-grid { grid-template-columns: 1fr; }
    .contact-inner { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
    .problem-grid  { grid-template-columns: 1fr; }
    .problem-section { padding-left: 1.5rem; padding-right: 1.5rem; }
    .features-section, .how-section, .powerful-section,
    .testimonials-section, .faq-section, .contact-section { padding-left: 1.5rem; padding-right: 1.5rem; }
    .stats-section  { padding: 2.5rem 1.5rem; }
    .stats-inner    { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem 0; }
    .stat-item      { padding: 0 1rem; }
    .stat-divider   { display: none; }
    footer          { padding-left: 1.5rem; padding-right: 1.5rem; }
    .demo-section   { padding-left: 1.5rem; padding-right: 1.5rem; }
    .contact-form-wrap { padding: 2rem 1.5rem; }
}
@media (max-width: 480px) {
    .stats-inner { gap: 2rem 0; }
    .stat-val    { font-size: 1.35rem; }
    .stat-lbl    { font-size: .7rem; }
}

/* ════════════════════════════════════════
   UTILITIES & MODIFIERS
════════════════════════════════════════ */

/* Icon size helper */
.icon-xs { font-size: .68rem; }

/* Usecases section-desc scoped override */
.usecases-header .section-desc { max-width: 560px; margin-top: 1rem; }

/* FAQ accordion toggle icon */
.faq-toggle-icon {
    color: var(--navy);
    font-size: .78rem;
    flex-shrink: 0;
    margin-left: 1rem;
}

/* Footer utilities */
.footer-tagline        { font-size: .78rem; color: var(--text-lt); }
.footer-tagline strong { color: var(--navy); font-weight: 700; }
.footer-tagline a      { text-decoration: none; color: inherit; }
.footer-brand p a      { text-decoration: none; color: inherit; }

.footer-legal-link       { font-size: .78rem; color: var(--text-lt); text-decoration: none; transition: color .2s; }
.footer-legal-link:hover { color: var(--navy); }

/* Small button modifier */
.btn-outline.btn-sm { padding: .65rem 1.5rem; font-size: .75rem; }