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

:root {
  --forest: #0A6E3F;
  --forest-dark: #085530;
  --forest-deep: #0D1F12;
  --forest-mid: #112918;
  --mint: #2ECC7A;
  --mint-light: #6EDFA0;
  --white: #FFFFFF;
  --off-white: #F4F9F6;
  --gray-100: #E4EFE9;
  --gray-300: #B0C8BA;
  --gray-500: #6B8F7A;
  --near-black: #060E09;
  --sans: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--sans); background: var(--white); color: var(--forest-deep); line-height: 1.6; overflow-x: hidden; }

/* === Navigation === */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 48px; height: 68px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255,255,255,0.93); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-100); transition: box-shadow 0.3s;
}
nav.scrolled { box-shadow: 0 2px 24px rgba(10,30,18,0.08); }
.nav-logo { display: flex; align-items: center; text-decoration: none; }
.nav-logo-img { height: 32px; width: auto; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { text-decoration: none; font-size: 14px; font-weight: 500; color: var(--gray-500); transition: color 0.2s; }
.nav-links a:hover { color: var(--forest-deep); }
.nav-links a.active { color: var(--forest-deep); border-bottom: 2px solid var(--forest); padding-bottom: 2px; }
.nav-cta { background: var(--forest) !important; color: white !important; padding: 9px 20px; border-radius: 8px; font-weight: 600 !important; transition: background 0.2s, transform 0.1s !important; }
.nav-cta:hover { background: var(--forest-dark) !important; transform: translateY(-1px); }
.nav-cta.active { border-bottom: none; padding-bottom: 9px; box-shadow: 0 0 0 2px var(--mint); }
.nav-hamburger {
  display: none;
  background: none; border: none; cursor: pointer; padding: 8px;
  color: var(--forest-deep);
}

/* === Buttons === */
.btn-primary { background: var(--forest); color: white; border: none; padding: 14px 28px; border-radius: 10px; font-family: var(--sans); font-size: 15px; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: background 0.2s, transform 0.15s, box-shadow 0.2s; box-shadow: 0 4px 24px rgba(10,110,63,0.35); }
.btn-primary:hover { background: var(--forest-dark); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(10,110,63,0.45); }
.btn-ghost { background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.8); border: 1px solid rgba(255,255,255,0.15); padding: 14px 28px; border-radius: 10px; font-family: var(--sans); font-size: 15px; font-weight: 500; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: background 0.2s, border-color 0.2s; }
.btn-ghost:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.3); }
.btn-outline { background: transparent; color: var(--forest); border: 2px solid var(--forest); padding: 12px 24px; border-radius: 10px; font-family: var(--sans); font-size: 15px; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: background 0.2s, transform 0.15s; }
.btn-outline:hover { background: rgba(10,110,63,0.06); transform: translateY(-1px); }

/* === Section Nav === */
.section-nav {
  display: flex; justify-content: center; align-items: center; gap: 16px;
  padding: 48px 24px;
  background: var(--gray-100);
}
.section-nav .btn-primary { font-size: 14px; padding: 12px 24px; }
.section-nav .btn-outline { font-size: 14px; padding: 10px 20px; }

/* === Shared Section === */
section { padding: 100px 24px; }
.container { max-width: 1120px; margin: 0 auto; }
.section-label { font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--forest); margin-bottom: 14px; }
h2 { font-family: var(--sans); font-size: clamp(32px, 4vw, 52px); font-weight: 400; line-height: 1.1; letter-spacing: -1.5px; color: var(--forest-deep); margin-bottom: 20px; }
.section-intro { font-size: 17px; color: var(--gray-500); max-width: 560px; line-height: 1.65; }

/* === Page Header (sub-pages) === */
.page-header {
  background: var(--forest-deep);
  padding: 120px 24px 60px;
  text-align: center;
}
.page-header .section-label { color: var(--mint); }
.page-header h2 { color: white; margin: 0 auto; }
.page-header .section-intro { color: rgba(255,255,255,0.55); max-width: 640px; margin: 20px auto 0; }

/* === Problem Section === */
.problem { background: white; }
.problem-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.problem-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; border-radius: 16px; overflow: hidden; border: 1px solid var(--gray-100); }
.stat-card { background: var(--off-white); padding: 36px 32px; }
.stat-card:nth-child(2) { background: var(--forest-deep); }
.stat-card:nth-child(4) { background: var(--forest-mid); }
.stat-number { font-family: var(--sans); font-size: 48px; font-weight: 400; line-height: 1; margin-bottom: 8px; color: var(--forest-deep); letter-spacing: -2px; }
.stat-card:nth-child(2) .stat-number, .stat-card:nth-child(4) .stat-number { color: white; }
.stat-card:nth-child(2) .stat-label, .stat-card:nth-child(4) .stat-label { color: rgba(255,255,255,0.5); }
.stat-label { font-size: 13px; font-weight: 500; color: var(--gray-500); line-height: 1.4; }
.problem-points { margin-top: 36px; display: flex; flex-direction: column; gap: 20px; }
.problem-point { display: flex; gap: 14px; align-items: flex-start; }
.problem-icon { width: 36px; height: 36px; background: #FEF3F2; border-radius: 8px; display: grid; place-items: center; flex-shrink: 0; margin-top: 2px; }
.problem-point h4 { font-size: 15px; font-weight: 600; color: var(--forest-deep); margin-bottom: 4px; }
.problem-point p { font-size: 14px; color: var(--gray-500); line-height: 1.55; }

/* === Personas === */
.for-section { background: var(--off-white); }
.personas-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.persona-card { border: 1px solid var(--gray-100); border-radius: 16px; padding: 36px; background: white; transition: box-shadow 0.2s, transform 0.2s; overflow: hidden; position: relative; }
.persona-card:hover { box-shadow: 0 12px 40px rgba(10,30,18,0.08); transform: translateY(-2px); }
.persona-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--forest), var(--mint)); }
.persona-role { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-300); margin-bottom: 8px; }
.persona-card h3 { font-size: 20px; font-weight: 400; color: var(--forest-deep); margin-bottom: 12px; letter-spacing: -0.3px; }
.persona-card > p { font-size: 14px; color: var(--gray-500); line-height: 1.6; margin-bottom: 20px; }
.persona-benefits { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.persona-benefits li { font-size: 13px; color: var(--gray-500); display: flex; align-items: flex-start; gap: 8px; }
.persona-benefits li::before { content: '\2713'; color: var(--forest); font-weight: 700; flex-shrink: 0; margin-top: 1px; }

/* === Platform === */
.platform { background: var(--forest-deep); position: relative; overflow: hidden; }
.platform .section-label { color: var(--mint); }
.platform h2 { color: white; }
.platform .section-intro { color: rgba(255,255,255,0.55); max-width: 640px; }
.platform-header { margin-bottom: 48px; }
.platform-honest { font-size: 15px; color: rgba(255,255,255,0.45); max-width: 640px; line-height: 1.7; margin-top: 20px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.feature-card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.07); padding: 36px 32px; border-radius: 2px; transition: background 0.2s; }
.feature-card:first-child { border-radius: 16px 2px 2px 2px; }
.feature-card:nth-child(3) { border-radius: 2px 16px 2px 2px; }
.feature-card:nth-child(4) { border-radius: 2px 2px 2px 16px; }
.feature-card:last-child { border-radius: 2px 2px 16px 2px; }
.feature-card:hover { background: rgba(255,255,255,0.07); }
.feature-icon { width: 44px; height: 44px; border-radius: 12px; background: rgba(10,110,63,0.25); border: 1px solid rgba(46,204,122,0.2); display: grid; place-items: center; margin-bottom: 20px; }
.feature-card h3 { font-size: 16px; font-weight: 600; color: white; margin-bottom: 10px; letter-spacing: -0.2px; }
.feature-card p { font-size: 14px; color: rgba(255,255,255,0.5); line-height: 1.6; }
.feature-tag { display: inline-block; margin-top: 16px; font-size: 11px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--mint); background: rgba(46,204,122,0.1); padding: 4px 10px; border-radius: 4px; }
.platform-note { text-align: center; margin-top: 48px; padding: 32px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; }
.platform-note p { font-size: 14px; color: rgba(255,255,255,0.4); line-height: 1.65; max-width: 600px; margin: 0 auto; }
.platform-note strong { color: rgba(255,255,255,0.6); font-weight: 600; }

/* === Devices === */
.device-section { background: var(--off-white); }
.device-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.device-cards { display: flex; flex-direction: column; gap: 16px; }
.device-card { background: white; border: 1px solid var(--gray-100); border-radius: 14px; padding: 24px 28px; display: flex; gap: 20px; align-items: flex-start; transition: box-shadow 0.2s, transform 0.2s; }
.device-card:hover { box-shadow: 0 8px 32px rgba(10,30,18,0.07); transform: translateY(-2px); }
.device-card-icon { width: 44px; height: 44px; border-radius: 12px; background: rgba(10,110,63,0.08); border: 1px solid rgba(10,110,63,0.15); display: grid; place-items: center; flex-shrink: 0; }
.device-card h4 { font-size: 15px; font-weight: 600; color: var(--forest-deep); margin-bottom: 6px; }
.device-card p { font-size: 13px; color: var(--gray-500); line-height: 1.55; }
.badge { display: inline-block; margin-top: 8px; font-size: 11px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--forest); background: rgba(10,110,63,0.08); padding: 3px 9px; border-radius: 4px; }

/* === Workflow === */
.workflow { background: white; }
.workflow-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 56px; position: relative; }
.workflow-steps::before { content: ''; position: absolute; top: 28px; left: 14%; right: 14%; height: 2px; background: linear-gradient(90deg, var(--forest) 0%, var(--mint) 100%); z-index: 0; }
.workflow-step { text-align: center; padding: 0 24px; position: relative; z-index: 1; }
.step-num { width: 56px; height: 56px; background: var(--forest-deep); color: white; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 20px; font-weight: 700; font-size: 15px; border: 4px solid white; }
.step-num.active { background: var(--forest); }
.workflow-step h4 { font-size: 15px; font-weight: 600; color: var(--forest-deep); margin-bottom: 8px; }
.workflow-step p { font-size: 13px; color: var(--gray-500); line-height: 1.55; }

/* === Roadmap === */
.roadmap { background: var(--forest-mid); }
.roadmap .section-label { color: var(--mint); }
.roadmap h2 { color: white; }
.roadmap .section-intro { color: rgba(255,255,255,0.5); max-width: 640px; }
.roadmap-header { margin-bottom: 64px; }
.roadmap-phases { display: flex; flex-direction: column; gap: 48px; }
.roadmap-phase { display: grid; grid-template-columns: 200px 1fr; gap: 48px; align-items: start; }
.phase-label { position: sticky; top: 88px; }
.phase-badge { display: inline-block; font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 6px 14px; border-radius: 6px; margin-bottom: 10px; }
.phase-badge.now { background: rgba(46,204,122,0.15); color: var(--mint); }
.phase-badge.next { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.5); }
.phase-badge.vision { background: rgba(255,255,255,0.04); color: rgba(255,255,255,0.35); }
.phase-title { font-size: 18px; font-weight: 400; color: white; letter-spacing: -0.3px; }
.phase-items { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.phase-card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.07); border-radius: 12px; padding: 28px; transition: background 0.2s; }
.phase-card:hover { background: rgba(255,255,255,0.07); }
.phase-card h4 { font-size: 15px; font-weight: 600; color: white; margin-bottom: 8px; }
.phase-card p { font-size: 13px; color: rgba(255,255,255,0.45); line-height: 1.6; }
.roadmap-closing { text-align: center; margin-top: 72px; padding-top: 48px; border-top: 1px solid rgba(255,255,255,0.08); }
.roadmap-closing p { font-size: 17px; color: rgba(255,255,255,0.5); max-width: 600px; margin: 0 auto; line-height: 1.7; }
.roadmap-closing .closing-emphasis { font-size: 20px; font-weight: 400; color: white; margin-top: 16px; letter-spacing: -0.3px; }

/* === Signup / Early Access === */
.early-access { background: var(--forest-deep); text-align: center; position: relative; overflow: hidden; }
.early-access .section-label { color: var(--mint); }
.early-access h2 { color: white; max-width: 640px; margin: 0 auto 20px; }
.early-access .section-intro { color: rgba(255,255,255,0.55); max-width: 520px; margin: 0 auto 44px; }
.signup-form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; position: relative; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255,255,255,0.4); text-align: left; }
.input-field { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.15); color: white; padding: 13px 18px; border-radius: 10px; font-family: var(--sans); font-size: 15px; width: 220px; outline: none; transition: border-color 0.2s, background 0.2s; }
.input-field::placeholder { color: rgba(255,255,255,0.3); }
.input-field:focus { border-color: rgba(10,110,63,0.7); background: rgba(255,255,255,0.09); }
.input-field option { background: var(--forest-deep); }
.signup-note { font-size: 12px; color: rgba(255,255,255,0.3); margin-top: 8px; }
.pilot-perks { display: flex; justify-content: center; gap: 32px; margin-top: 48px; flex-wrap: wrap; }
.perk { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.5); font-weight: 500; }
.perk-dot { width: 6px; height: 6px; background: var(--mint); border-radius: 50%; flex-shrink: 0; }

/* === Footer === */
footer { background: var(--near-black); padding: 56px 48px 36px; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.07); margin-bottom: 32px; flex-wrap: wrap; gap: 32px; }
.footer-brand { max-width: 300px; }
.footer-logo { display: flex; align-items: center; text-decoration: none; margin-bottom: 14px; }
.footer-logo-img { height: 28px; width: auto; object-fit: contain; }
.footer-tagline { font-size: 13px; color: rgba(255,255,255,0.35); line-height: 1.6; }
.footer-links { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h5 { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.3); margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { text-decoration: none; font-size: 14px; color: rgba(255,255,255,0.5); transition: color 0.2s; }
.footer-col a:hover { color: white; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-copy { font-size: 12px; color: rgba(255,255,255,0.25); }
.footer-legal { font-size: 11px; color: rgba(255,255,255,0.2); margin-top: 20px; line-height: 1.6; max-width: 800px; }
.footer-contact { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-contact a { color: rgba(255,255,255,0.55); text-decoration: none; }
.footer-contact a:hover { color: white; }

/* === App Page === */
.app-showcase { background: var(--forest-deep); text-align: center; padding: 80px 24px 100px; }
.app-showcase-content { max-width: 640px; margin: 0 auto; }
.app-showcase h2 { color: white; }
.app-showcase .section-intro { color: rgba(255,255,255,0.55); max-width: 560px; margin: 0 auto 36px; }
.btn-large { padding: 18px 36px; font-size: 17px; box-shadow: 0 6px 32px rgba(10,110,63,0.45); }
.btn-large:hover { box-shadow: 0 10px 40px rgba(10,110,63,0.55); }
.app-note { font-size: 13px; color: rgba(255,255,255,0.35); margin-top: 16px; }

.app-features { background: white; }
.app-features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.app-feature-card { border: 1px solid var(--gray-100); border-radius: 16px; padding: 32px; background: var(--off-white); transition: box-shadow 0.2s, transform 0.2s; }
.app-feature-card:hover { box-shadow: 0 12px 40px rgba(10,30,18,0.08); transform: translateY(-2px); }
.app-feature-card .feature-icon { margin-bottom: 16px; }
.app-feature-card h3 { font-size: 16px; font-weight: 600; color: var(--forest-deep); margin-bottom: 8px; }
.app-feature-card p { font-size: 14px; color: var(--gray-500); line-height: 1.6; }

.cta-banner { background: var(--forest-deep); text-align: center; padding: 72px 24px; }
.cta-banner h2 { color: white; margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.55); font-size: 17px; max-width: 520px; margin: 0 auto 32px; line-height: 1.65; }

.app-steps { background: var(--off-white); text-align: center; }
.steps-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 48px; }
.step-item { text-align: center; }
.step-item .step-num { margin: 0 auto 16px; background: var(--forest); }
.step-item h4 { font-size: 16px; font-weight: 600; color: var(--forest-deep); margin-bottom: 8px; }
.step-item p { font-size: 14px; color: var(--gray-500); line-height: 1.55; }

/* === Pricing === */
.pricing-section { background: var(--white); }
.pricing-section h2 { margin-bottom: 8px; }
.pricing-subtitle { font-size: 16px; color: var(--gray-500); max-width: 520px; margin-bottom: 16px; line-height: 1.6; }

.pricing-header { text-align: center; margin-bottom: 64px; }
.pricing-toggle { display: inline-flex; align-items: center; gap: 12px; margin-top: 24px; }
.toggle-label { font-size: 14px; font-weight: 500; color: var(--gray-300); transition: color 0.2s; cursor: pointer; }
.toggle-label.toggle-active { color: var(--forest-deep); font-weight: 600; }
.toggle-switch { position: relative; width: 48px; height: 26px; background: var(--gray-100); border: 2px solid var(--gray-300); border-radius: 13px; cursor: pointer; transition: background 0.2s, border-color 0.2s; padding: 0; }
.toggle-switch.active { background: var(--forest); border-color: var(--forest); }
.toggle-knob { position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; background: white; border-radius: 50%; transition: transform 0.2s; box-shadow: 0 1px 3px rgba(0,0,0,0.15); }
.toggle-switch.active .toggle-knob { transform: translateX(22px); }
.toggle-save { font-size: 12px; font-weight: 600; color: var(--forest); background: rgba(46,204,122,0.12); padding: 3px 10px; border-radius: 20px; }

.pricing-grid { display: grid; gap: 24px; margin-top: 40px; }
.pricing-grid-2 { grid-template-columns: repeat(2, 1fr); max-width: 720px; margin-left: auto; margin-right: auto; }
.pricing-grid-3 { grid-template-columns: repeat(3, 1fr); }

.pricing-card { position: relative; background: var(--off-white); border: 1px solid var(--gray-100); border-radius: 16px; padding: 36px 32px; display: flex; flex-direction: column; transition: box-shadow 0.2s, transform 0.2s; }
.pricing-card:hover { box-shadow: 0 12px 40px rgba(10,30,18,0.08); transform: translateY(-2px); }
.pricing-card.featured { border: 2px solid var(--forest); background: white; box-shadow: 0 8px 32px rgba(10,110,63,0.1); }
.pricing-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--forest); color: white; font-size: 12px; font-weight: 600; padding: 4px 16px; border-radius: 20px; white-space: nowrap; }

.pricing-card-header { margin-bottom: 24px; }
.pricing-card h3 { font-size: 20px; font-weight: 700; color: var(--forest-deep); margin-bottom: 6px; }
.pricing-tier-desc { font-size: 14px; color: var(--gray-500); line-height: 1.5; }

.pricing-price-wrap { display: flex; align-items: baseline; gap: 2px; margin-bottom: 4px; }
.pricing-price { font-size: 48px; font-weight: 700; color: var(--forest-deep); line-height: 1; }
.pricing-period { font-size: 16px; color: var(--gray-500); font-weight: 400; }
.pricing-price-custom { font-size: 32px; font-weight: 700; color: var(--forest-deep); line-height: 1; }
.pricing-billed { font-size: 13px; color: var(--gray-500); margin-bottom: 24px; }

.pricing-features { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; flex: 1; }
.pricing-features li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--forest-deep); line-height: 1.45; }
.pricing-features svg { flex-shrink: 0; margin-top: 2px; }

.pricing-cta { text-align: center; width: 100%; justify-content: center; margin-top: auto; }

.pricing-note { text-align: center; margin-top: 64px; padding: 32px; background: var(--off-white); border-radius: 12px; border: 1px solid var(--gray-100); }
.pricing-note p { font-size: 15px; color: var(--gray-500); line-height: 1.6; max-width: 560px; margin: 0 auto; }

.page-header-link { display: inline-block; margin-top: 12px; font-size: 14px; color: var(--mint); text-decoration: none; font-weight: 500; transition: color 0.2s; }
.page-header-link:hover { color: var(--mint-light); text-decoration: underline; }

.phase-pricing-note { font-size: 14px; color: rgba(255,255,255,0.4); margin-top: 10px; }
.phase-pricing-note a { color: var(--mint); text-decoration: none; font-weight: 500; transition: color 0.2s; }
.phase-pricing-note a:hover { color: var(--mint-light); text-decoration: underline; }

/* === Animations === */
@keyframes fadeUp { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* === Responsive === */
@media (max-width: 900px) {
  nav { padding: 0 20px; }
  .nav-links {
    display: none;
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    background: rgba(255,255,255,0.97); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--gray-100);
    padding: 16px 24px; gap: 0;
    box-shadow: 0 8px 32px rgba(10,30,18,0.1);
  }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid var(--gray-100); }
  .nav-links li:last-child { border-bottom: none; margin-top: 8px; }
  .nav-links a { display: block; padding: 14px 0; font-size: 16px; }
  .nav-cta { display: inline-block !important; text-align: center; }
  .nav-hamburger { display: block; }
  .problem-layout, .device-layout { grid-template-columns: 1fr; gap: 48px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .workflow-steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .workflow-steps::before { display: none; }
  .personas-grid { grid-template-columns: 1fr; }
  footer { padding: 48px 24px 32px; }
  .footer-top { flex-direction: column; }
  .device-strip { padding: 16px 20px; gap: 20px; }
  .roadmap-phase { grid-template-columns: 1fr; gap: 24px; }
  .phase-label { position: static; }
  .phase-items { grid-template-columns: 1fr; }
  .app-features-grid { grid-template-columns: 1fr 1fr; }
  .steps-row { grid-template-columns: 1fr; gap: 24px; }
  .pricing-grid-2, .pricing-grid-3 { grid-template-columns: 1fr; max-width: 480px; margin-left: auto; margin-right: auto; }
}

@media (max-width: 600px) {
  section { padding: 72px 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .signup-form { flex-direction: column; align-items: center; }
  .input-field { width: 100%; max-width: 320px; }
  .section-nav { flex-direction: column; gap: 12px; }
  .page-header { padding: 100px 20px 48px; }
  .app-features-grid { grid-template-columns: 1fr; }
}