:root {
    --black: #000000;
    --white: #FFFFFF;
    --gray-50: #FAFAFA;
    --gray-100: #F5F5F5;
    --gray-200: #E5E5E5;
    --gray-300: #D4D4D4;
    --gray-400: #A3A3A3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --max-w: 1200px;
    --transition: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font); color: var(--gray-900);
    background: var(--white); overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* NAV */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 16px 0; background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px); border-bottom: 1px solid transparent;
    transition: border-color 0.3s, padding 0.3s;
}
.nav.scrolled { border-bottom-color: var(--gray-200); padding: 12px 0; }
.nav .container { display: flex; justify-content: space-between; align-items: center; }
.nav-logo { font-size: 20px; font-weight: 800; letter-spacing: -0.5px; color: var(--black); text-decoration: none; }
.nav-logo span { color: var(--gray-400); }
.nav-cta {
    padding: 10px 24px; background: var(--black); color: var(--white);
    border: none; border-radius: 8px; font-size: 14px; font-weight: 600;
    cursor: pointer; font-family: var(--font); transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.2); }

/* HERO */
.hero { min-height: 100vh; display: flex; align-items: center; padding: 120px 0 80px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px;
    border-radius: 100px; background: var(--gray-100); border: 1px solid var(--gray-200);
    font-size: 13px; font-weight: 600; color: var(--gray-600); margin-bottom: 24px; letter-spacing: 0.5px;
}
.hero-badge-dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; animation: pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.3)} }
.hero h1 { font-size: clamp(40px,5vw,64px); font-weight: 900; line-height: 1.05; letter-spacing: -2px; margin-bottom: 24px; }
.hero h1 .highlight { background: linear-gradient(180deg, transparent 60%, var(--gray-200) 60%); }
.hero-sub { font-size: 18px; line-height: 1.6; color: var(--gray-600); margin-bottom: 40px; max-width: 520px; }
.hero-cta-group { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.btn-primary {
    padding: 16px 32px; background: var(--black); color: var(--white);
    border: none; border-radius: 12px; font-size: 16px; font-weight: 700;
    cursor: pointer; font-family: var(--font); transition: all 0.3s var(--transition);
    display: inline-flex; align-items: center; gap: 10px; text-decoration: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.25); }
.btn-secondary {
    padding: 16px 32px; background: transparent; color: var(--black);
    border: 2px solid var(--gray-300); border-radius: 12px; font-size: 16px;
    font-weight: 600; cursor: pointer; font-family: var(--font); transition: all 0.3s;
    text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
}
.btn-secondary:hover { border-color: var(--black); }
.hero-meta { display: flex; gap: 32px; margin-top: 32px; padding-top: 32px; border-top: 1px solid var(--gray-200); }
.hero-meta-number { font-size: 28px; font-weight: 800; }
.hero-meta-label { font-size: 13px; color: var(--gray-500); margin-top: 2px; }

/* HERO VISUAL */
.hero-visual { position: relative; height: 500px; }
.float-card {
    position: absolute; background: var(--white); border: 1px solid var(--gray-200);
    border-radius: 16px; padding: 24px; box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    transition: transform 0.4s var(--transition);
}
.float-card:hover { transform: translateY(-8px) !important; }
.float-card-1 { top: 0; left: 10%; width: 260px; z-index: 3; animation: float 6s ease-in-out infinite; }
.float-card-2 { top: 60px; right: 0; width: 240px; z-index: 2; animation: float-d 7s ease-in-out infinite .5s; }
.float-card-3 { bottom: 40px; left: 5%; width: 280px; z-index: 4; animation: float 8s ease-in-out infinite 1s; }
.float-card-4 { bottom: 0; right: 10%; width: 220px; z-index: 1; animation: float-d 6.5s ease-in-out infinite 1.5s; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }
@keyframes float-d { 0%,100%{transform:translateY(0) rotate(-2deg)} 50%{transform:translateY(-16px) rotate(1deg)} }
.float-card-tag {
    display: inline-block; padding: 4px 10px; border-radius: 6px;
    font-size: 11px; font-weight: 700; letter-spacing: 0.5px; margin-bottom: 12px; text-transform: uppercase;
}
.float-card-tag.resume { background: var(--gray-100); color: var(--gray-700); }
.float-card-tag.casestudy { background: var(--gray-800); color: var(--white); }
.float-card-tag.portfolio { background: var(--gray-200); color: var(--gray-800); }
.float-card-tag.research { background: var(--black); color: var(--white); }
.float-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.float-card p { font-size: 13px; color: var(--gray-500); line-height: 1.5; }
.float-card-lines { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }
.float-card-line { height: 8px; border-radius: 4px; background: var(--gray-100); }
.float-card-line:nth-child(2) { width: 80%; }
.float-card-line:nth-child(3) { width: 60%; }

/* MARQUEE */
.marquee-section { padding: 40px 0; background: var(--black); overflow: hidden; }
.marquee-track { display: flex; gap: 60px; animation: marquee 30s linear infinite; white-space: nowrap; }
.marquee-item {
    font-size: 16px; font-weight: 600; color: var(--gray-400); letter-spacing: 2px;
    text-transform: uppercase; display: flex; align-items: center; gap: 60px; flex-shrink: 0;
}
.marquee-item::after { content: '\2726'; font-size: 12px; color: var(--gray-600); }
@keyframes marquee { 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }

/* SECTION COMMON */
.section { padding: 120px 0; }
.section-label { font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--gray-400); margin-bottom: 16px; }
.section-title { font-size: clamp(32px,4vw,52px); font-weight: 900; line-height: 1.1; letter-spacing: -1.5px; margin-bottom: 20px; }
.section-sub { font-size: 18px; line-height: 1.6; color: var(--gray-500); max-width: 600px; }
.section-header { margin-bottom: 64px; }
.section-header.center { text-align: center; }
.section-header.center .section-sub { margin: 0 auto; }

/* PROBLEMS */
.problems { background: var(--gray-50); }
.problem-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; }
.problem-card {
    padding: 40px; border-radius: 20px; background: var(--white);
    border: 1px solid var(--gray-200); transition: all 0.3s var(--transition);
}
.problem-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.06); border-color: var(--gray-300); }
.problem-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--gray-100); display: flex; align-items: center; justify-content: center; margin-bottom: 24px; font-size: 24px; }
.problem-card h3 { font-size: 20px; font-weight: 800; margin-bottom: 12px; line-height: 1.3; }
.problem-card p { font-size: 15px; color: var(--gray-500); line-height: 1.6; }

/* SOLUTION */
.solution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.solution-card { padding: 48px; border-radius: 24px; border: 1px solid var(--gray-200); position: relative; overflow: hidden; transition: all 0.4s var(--transition); }
.solution-card:hover { border-color: var(--gray-400); }
.solution-card.dark { background: var(--gray-900); color: var(--white); border-color: transparent; }
.solution-card.dark .solution-card-sub { color: var(--gray-400); }
.solution-card.dark .solution-card-list li { color: var(--gray-300); border-color: var(--gray-700); }
.solution-card.dark .solution-card-list li::before { color: var(--gray-500); }
.solution-card-number { font-size: 120px; font-weight: 900; color: var(--gray-100); position: absolute; top: -20px; right: 20px; line-height: 1; pointer-events: none; }
.solution-card.dark .solution-card-number { color: var(--gray-800); }
.solution-card-label { font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--gray-400); margin-bottom: 16px; }
.solution-card h3 { font-size: 28px; font-weight: 800; margin-bottom: 12px; line-height: 1.2; position: relative; }
.solution-card-sub { font-size: 15px; color: var(--gray-500); line-height: 1.6; margin-bottom: 32px; position: relative; }
.solution-card-list { list-style: none; display: flex; flex-direction: column; position: relative; }
.solution-card-list li { padding: 14px 0; border-bottom: 1px solid var(--gray-200); font-size: 15px; font-weight: 500; display: flex; align-items: center; gap: 12px; }
.solution-card-list li::before { content: '\2192'; font-weight: 700; color: var(--gray-400); flex-shrink: 0; }

/* STACK CARDS */
.stack-section { background: var(--gray-50); }
.stack-cards-wrapper { display: flex; flex-direction: column; gap: 24px; max-width: 900px; margin: 0 auto; }
.stack-card {
    background: var(--white); border: 1px solid var(--gray-200); border-radius: 20px;
    padding: 40px 48px; display: grid; grid-template-columns: auto 1fr; gap: 32px;
    align-items: center; transition: all 0.4s var(--transition); position: relative; overflow: hidden;
}
.stack-card:hover { transform: translateY(-4px) scale(1.01); box-shadow: 0 20px 60px rgba(0,0,0,0.08); border-color: var(--gray-300); }
.stack-card-num { font-size: 64px; font-weight: 900; color: var(--gray-200); line-height: 1; min-width: 80px; text-align: center; }
.stack-card:hover .stack-card-num { color: var(--gray-400); }
.stack-card h4 { font-size: 20px; font-weight: 800; margin-bottom: 8px; }
.stack-card p { font-size: 15px; color: var(--gray-500); line-height: 1.6; }
.stack-card-tag { display: inline-block; margin-top: 12px; padding: 4px 12px; background: var(--gray-100); border-radius: 6px; font-size: 12px; font-weight: 600; color: var(--gray-600); }

/* CAROUSEL */
.carousel-section { overflow: hidden; }
.swiper { overflow: visible !important; padding-bottom: 60px; }
.swiper-slide { width: 340px !important; }
.carousel-card { border: 1px solid var(--gray-200); border-radius: 20px; overflow: hidden; background: var(--white); transition: all 0.4s var(--transition); }
.carousel-card:hover { transform: translateY(-8px); box-shadow: 0 20px 60px rgba(0,0,0,0.1); }
.carousel-card-visual { height: 200px; background: var(--gray-100); display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.carousel-card-visual .mockup { width: 80%; height: 70%; background: var(--white); border-radius: 8px; border: 1px solid var(--gray-200); padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.mockup-line { height: 8px; background: var(--gray-200); border-radius: 4px; }
.mockup-line.short { width: 50%; }
.mockup-line.medium { width: 75%; }
.mockup-block { flex: 1; background: var(--gray-100); border-radius: 6px; margin-top: 4px; }
.carousel-card-body { padding: 24px; }
.carousel-card-body h4 { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.carousel-card-body p { font-size: 14px; color: var(--gray-500); line-height: 1.6; }
.swiper-pagination { bottom: 0 !important; }
.swiper-pagination-bullet { background: var(--gray-400); width: 10px; height: 10px; }
.swiper-pagination-bullet-active { background: var(--black); width: 32px; border-radius: 5px; }

/* AUDIENCE */
.audience-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.audience-card { padding: 32px; border-radius: 20px; background: var(--white); border: 1px solid var(--gray-200); transition: all 0.4s var(--transition); text-align: center; }
.audience-card:hover { transform: translateY(-6px); box-shadow: 0 16px 48px rgba(0,0,0,0.08); }
.audience-icon { width: 72px; height: 72px; border-radius: 50%; background: var(--gray-100); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 32px; }
.audience-card h4 { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.audience-card p { font-size: 14px; color: var(--gray-500); line-height: 1.5; }

/* BEFORE AFTER */
.ba-section { background: var(--gray-900); color: var(--white); }
.ba-section .section-label { color: var(--gray-500); }
.ba-section .section-sub { color: var(--gray-400); }
.ba-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 40px; align-items: start; }
.ba-column { display: flex; flex-direction: column; gap: 20px; }
.ba-column-title { font-size: 14px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px; color: var(--gray-400); }
.ba-item { padding: 20px 24px; border-radius: 12px; font-size: 15px; font-weight: 500; line-height: 1.5; }
.ba-before .ba-item { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); color: var(--gray-400); text-decoration: line-through; text-decoration-color: var(--gray-600); }
.ba-after .ba-item { background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.15); color: var(--white); }
.ba-divider { width: 2px; height: 100%; background: var(--gray-700); position: relative; min-height: 300px; }
.ba-divider-label { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); background: var(--gray-800); padding: 12px 16px; border-radius: 8px; font-size: 13px; font-weight: 700; white-space: nowrap; color: var(--gray-400); letter-spacing: 1px; }

/* STATS */
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; text-align: center; }
.stat-item { padding: 40px 24px; border-radius: 20px; background: var(--gray-50); border: 1px solid var(--gray-200); transition: all 0.3s var(--transition); }
.stat-item:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(0,0,0,0.06); }
.stat-number { font-size: 52px; font-weight: 900; color: var(--black); line-height: 1; margin-bottom: 8px; }
.stat-label { font-size: 15px; color: var(--gray-500); font-weight: 500; }

/* STEPS */
.steps-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; }
.step-card { text-align: center; padding: 40px 32px; }
.step-number { width: 64px; height: 64px; border-radius: 50%; background: var(--black); color: var(--white); display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 800; margin: 0 auto 24px; }
.step-card h4 { font-size: 20px; font-weight: 800; margin-bottom: 12px; }
.step-card p { font-size: 15px; color: var(--gray-500); line-height: 1.6; }
.steps-connector { display: flex; align-items: center; justify-content: center; margin-bottom: 40px; }
.connector-line { flex: 1; height: 2px; background: var(--gray-200); }
.connector-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--gray-300); flex-shrink: 0; }

/* TESTIMONIALS */
.testimonials { background: var(--gray-50); }
.testimonial-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; }
.testimonial-card { padding: 40px; border-radius: 20px; background: var(--white); border: 1px solid var(--gray-200); transition: all 0.3s var(--transition); }
.testimonial-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.06); }
.testimonial-stars { color: var(--gray-800); font-size: 18px; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial-text { font-size: 16px; line-height: 1.7; color: var(--gray-700); margin-bottom: 24px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--gray-200); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; color: var(--gray-600); }
.testimonial-name { font-size: 14px; font-weight: 700; }
.testimonial-role { font-size: 13px; color: var(--gray-400); }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--gray-200); overflow: hidden; }
.faq-question { padding: 24px 0; display: flex; justify-content: space-between; align-items: center; cursor: pointer; width: 100%; background: none; border: none; text-align: left; font-family: var(--font); font-size: 17px; font-weight: 700; color: var(--gray-900); gap: 16px; }
.faq-question:hover { color: var(--gray-600); }
.faq-icon { width: 32px; height: 32px; border-radius: 50%; background: var(--gray-100); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: transform 0.3s, background 0.3s; font-size: 18px; font-weight: 300; }
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--gray-900); color: var(--white); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--transition); }
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer p { padding-bottom: 24px; font-size: 15px; color: var(--gray-500); line-height: 1.7; }

/* CTA SECTION */
.cta-section { background: var(--black); color: var(--white); position: relative; overflow: hidden; }
.cta-section::before { content:''; position: absolute; top: -200px; right: -200px; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%); pointer-events: none; }
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.cta-content .section-label { color: var(--gray-500); }
.cta-content .section-title { color: var(--white); }
.cta-content .section-sub { color: var(--gray-400); }
.cta-checklist { list-style: none; margin-top: 32px; display: flex; flex-direction: column; gap: 16px; }
.cta-checklist li { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--gray-300); font-weight: 500; }
.cta-checklist li svg { flex-shrink: 0; }

/* FORM */
.form-card { background: var(--gray-900); border: 1px solid var(--gray-700); border-radius: 24px; padding: 48px; }
.form-card h3 { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.form-card-sub { font-size: 14px; color: var(--gray-400); margin-bottom: 32px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--gray-400); margin-bottom: 8px; }
.form-group label .optional { font-weight: 400; color: var(--gray-600); }
.form-input { width: 100%; padding: 14px 16px; background: var(--gray-800); border: 1px solid var(--gray-700); border-radius: 10px; color: var(--white); font-size: 15px; font-family: var(--font); transition: border-color 0.3s, box-shadow 0.3s; outline: none; }
.form-input::placeholder { color: var(--gray-600); }
.form-input:focus { border-color: var(--gray-500); box-shadow: 0 0 0 3px rgba(255,255,255,0.05); }
.form-input.error { border-color: #ef4444; }
.form-error { font-size: 12px; color: #ef4444; margin-top: 6px; display: none; }
.form-input.error + .form-error { display: block; }
.form-submit { width: 100%; padding: 16px; background: var(--white); color: var(--black); border: none; border-radius: 12px; font-size: 16px; font-weight: 700; cursor: pointer; font-family: var(--font); transition: all 0.3s; display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 8px; }
.form-submit:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,255,255,0.15); }
.form-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.form-submit .spinner { width: 20px; height: 20px; border: 2px solid var(--gray-300); border-top-color: var(--black); border-radius: 50%; animation: spin 0.6s linear infinite; display: none; }
.form-submit.loading .spinner { display: block; }
.form-submit.loading .btn-text { display: none; }
@keyframes spin { to{transform:rotate(360deg)} }
.form-trust { text-align: center; margin-top: 16px; font-size: 12px; color: var(--gray-600); display: flex; align-items: center; justify-content: center; gap: 6px; }

/* SUCCESS */
.form-success { display: none; text-align: center; padding: 40px 0; }
.form-success.show { display: block; }
.form-success-icon { width: 80px; height: 80px; border-radius: 50%; background: var(--white); color: var(--black); display: flex; align-items: center; justify-content: center; margin: 0 auto 24px; font-size: 36px; animation: scaleIn 0.5s var(--transition); }
@keyframes scaleIn { 0%{transform:scale(0);opacity:0} 100%{transform:scale(1);opacity:1} }
.form-success h3 { font-size: 24px; font-weight: 800; margin-bottom: 12px; }
.form-success p { font-size: 15px; color: var(--gray-400); margin-bottom: 32px; line-height: 1.6; }
.download-btn { display: inline-flex; align-items: center; gap: 10px; padding: 16px 40px; background: var(--white); color: var(--black); border: none; border-radius: 12px; font-size: 16px; font-weight: 700; cursor: pointer; font-family: var(--font); text-decoration: none; transition: all 0.3s; animation: scaleIn 0.5s 0.2s var(--transition) both; }
.download-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,255,255,0.2); }

/* DETAIL GRID */
.detail-section { background: var(--gray-50); }
.detail-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.detail-card { padding: 32px; border-radius: 16px; background: var(--white); border: 1px solid var(--gray-200); transition: all 0.3s var(--transition); }
.detail-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.06); }
.detail-card-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--gray-100); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; font-size: 22px; }
.detail-card h4 { font-size: 16px; font-weight: 800; margin-bottom: 8px; line-height: 1.3; }
.detail-card p { font-size: 14px; color: var(--gray-500); line-height: 1.6; }

/* BANNER */
.banner-section { padding: 80px 0; background: var(--gray-100); text-align: center; }
.banner-quote { font-size: clamp(24px,3vw,40px); font-weight: 800; line-height: 1.3; letter-spacing: -1px; max-width: 800px; margin: 0 auto 24px; }
.banner-author { font-size: 15px; color: var(--gray-500); }

/* FOOTER */
.footer { padding: 48px 0; border-top: 1px solid var(--gray-200); text-align: center; }
.footer p { font-size: 14px; color: var(--gray-400); }
.footer a { color: var(--gray-600); text-decoration: none; font-weight: 600; }
.footer a:hover { color: var(--black); }

/* ANIMATIONS */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s var(--transition), transform 0.8s var(--transition); }
.reveal.active { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.8s var(--transition), transform 0.8s var(--transition); }
.reveal-left.active { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: opacity 0.8s var(--transition), transform 0.8s var(--transition); }
.reveal-right.active { opacity: 1; transform: translateX(0); }
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* RESPONSIVE */
@media (max-width:1024px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { display: none; }
    .solution-grid { grid-template-columns: 1fr; }
    .audience-grid { grid-template-columns: repeat(2,1fr); }
    .ba-grid { grid-template-columns: 1fr; gap: 24px; }
    .ba-divider { width: 100%; height: 2px; min-height: auto; }
    .ba-divider-label { position: static; transform: none; display: block; text-align: center; padding: 8px 16px; }
    .cta-grid { grid-template-columns: 1fr; gap: 48px; }
    .stats-grid { grid-template-columns: repeat(2,1fr); }
    .testimonial-grid { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width:768px) {
    .section { padding: 80px 0; }
    .problem-grid,.steps-grid,.audience-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2,1fr); }
    .hero-meta { flex-direction: column; gap: 16px; }
    .hero-cta-group { flex-direction: column; align-items: stretch; }
    .btn-primary,.btn-secondary { justify-content: center; }
    .form-card { padding: 32px 24px; }
    .stack-card { grid-template-columns: 1fr; gap: 16px; padding: 28px; }
    .stack-card-num { font-size: 40px; min-width: auto; text-align: left; }
    .detail-grid { grid-template-columns: 1fr; }
    .steps-connector { display: none; }
}
@media (max-width:480px) {
    .container { padding: 0 16px; }
    .section { padding: 60px 0; }
    .stat-number { font-size: 36px; }
    .solution-card { padding: 32px; }
    .solution-card-number { font-size: 80px; }
}