:root {
  --deep: #0A1628; --deep2: #0F2034; --deep3: #162D4A; --line: #1B3448;
  --snow: #F8FAFC; --snow2: #EFF3F6; --white: #FFFFFF;
  --cyan: #06B6D4; --cyan-soft: #22D3EE; --cyan-deep: #0891B2;
  --violet: #8B5CF6; --violet-soft: #A78BFA; --violet-deep: #7C3AED;
  --muted: #64748B; --muted-l: #475569; --alert: #EF4444;
  --grad: linear-gradient(135deg, #06B6D4, #8B5CF6);
  --radius: 16px; --radius-sm: 10px;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, -apple-system, sans-serif; background: var(--deep); color: var(--snow); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--cyan-soft); }

/* ===== UTILITY ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.grad-bg { background: var(--grad); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: var(--radius-sm); font-weight: 700; font-size: 15px; border: none; cursor: pointer; transition: all .2s; }
.btn-primary { background: var(--grad); color: #fff; }
.btn-primary:hover { opacity: .9; transform: translateY(-1px); }
.btn-secondary { background: var(--deep2); color: var(--snow); border: 1px solid var(--line); }
.btn-secondary:hover { border-color: var(--cyan); }
.btn-ghost { background: transparent; color: var(--cyan); border: 1px solid var(--cyan); }
.btn-sm { padding: 10px 20px; font-size: 13px; }
.btn-lg { padding: 18px 36px; font-size: 17px; }

/* ===== NAV ===== */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(10,22,40,.85); backdrop-filter: blur(20px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.nav-logo { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 18px; letter-spacing: -.03em; }
.nav-logo svg { flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: var(--muted); font-weight: 600; font-size: 14px; transition: color .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--snow); }
.nav-user { display: flex; align-items: center; gap: 12px; }
.nav-xp { font-size: 13px; color: var(--muted); font-weight: 600; }
.nav-level { background: var(--deep2); border: 1px solid var(--line); padding: 6px 14px; border-radius: 99px; font-size: 12px; font-weight: 700; color: var(--cyan); letter-spacing: .05em; }

/* ===== HERO (HOME) ===== */
.hero { padding: 100px 0 80px; text-align: center; }
.hero-badge { display: inline-block; background: rgba(6,182,212,.1); border: 1px solid rgba(6,182,212,.2); color: var(--cyan); padding: 8px 20px; border-radius: 99px; font-size: 13px; font-weight: 700; letter-spacing: .03em; margin-bottom: 24px; }
.hero h1 { font-size: clamp(40px, 6vw, 72px); font-weight: 800; letter-spacing: -.04em; line-height: 1.05; max-width: 900px; margin: 0 auto; }
.hero .lead { font-size: 19px; color: var(--muted); margin-top: 24px; max-width: 680px; margin-left: auto; margin-right: auto; line-height: 1.7; }
.hero .cta-row { display: flex; gap: 16px; justify-content: center; margin-top: 40px; flex-wrap: wrap; }
.hero .stats { display: flex; gap: 48px; justify-content: center; margin-top: 56px; }
.hero .stat { text-align: center; }
.hero .stat .num { font-size: 32px; font-weight: 800; letter-spacing: -.03em; }
.hero .stat .label { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* ===== SECTIONS (HOME) ===== */
.section-dark { padding: 80px 0; background: var(--deep2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cta-final { padding: 100px 0; }

/* Problem grid */
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; text-align: left; }
.problem-item { display: flex; align-items: flex-start; gap: 12px; padding: 16px; background: var(--deep); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.problem-x { color: var(--alert); font-weight: 800; font-size: 18px; flex-shrink: 0; }
.problem-item p { color: var(--muted); font-size: 15px; }

/* Pilares grid (home) */
.section-pilares { padding: 80px 0; }
.pilares-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.pilar-card { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: border-color .3s; position: relative; }
.pilar-card:hover { border-color: var(--cyan); }
.pilar-num { width: 36px; height: 36px; border-radius: 50%; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.pilar-card h3 { font-size: 18px; font-weight: 800; letter-spacing: -.02em; }
.pilar-card p { color: var(--muted); font-size: 14px; margin-top: 8px; }
.pilar-example { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; font-style: italic; }

/* ===== TRACK CARDS (HOME) ===== */
.tracks-section { padding: 80px 0; }
.tracks-section h2 { font-size: 36px; font-weight: 800; letter-spacing: -.03em; text-align: center; margin-bottom: 48px; }
.track-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 24px; }
.track-card { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; transition: border-color .3s; position: relative; }
.track-card:hover { border-color: var(--cyan); }
.track-card-badge { position: absolute; top: 20px; right: 20px; background: rgba(139,92,246,.15); color: var(--violet); padding: 4px 12px; border-radius: 99px; font-size: 12px; font-weight: 700; }
.track-card h3 { font-size: 28px; font-weight: 800; letter-spacing: -.03em; }
.track-card .sub { color: var(--cyan); font-weight: 700; font-size: 14px; margin-top: 4px; letter-spacing: .03em; }
.track-card p { color: var(--muted); margin-top: 16px; font-size: 15px; }
.track-pilares { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.track-pilares span { background: var(--deep); border: 1px solid var(--line); padding: 4px 12px; border-radius: 99px; font-size: 12px; font-weight: 600; color: var(--muted); }
.track-highlights { margin-top: 20px; padding-left: 0; list-style: none; }
.track-highlights li { padding: 6px 0; font-size: 14px; color: var(--snow2); position: relative; padding-left: 20px; }
.track-highlights li::before { content: ''; position: absolute; left: 0; top: 13px; width: 8px; height: 8px; border-radius: 50%; background: var(--grad); }

/* ===== FEATURES (HOME) ===== */
.features { padding: 80px 0; border-top: 1px solid var(--line); }
.features h2 { font-size: 36px; font-weight: 800; letter-spacing: -.03em; text-align: center; margin-bottom: 48px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.feature { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.feature .feat-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.feature h4 { font-size: 20px; font-weight: 800; letter-spacing: -.02em; }
.feature p { color: var(--muted); font-size: 14px; margin-top: 8px; }

/* ===== CASES (HOME) ===== */
.cases-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.case-card { background: var(--deep); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; transition: border-color .3s; }
.case-card:hover { border-color: var(--cyan); }
.case-name { font-size: 18px; font-weight: 800; }
.case-what { color: var(--muted); font-size: 14px; margin-top: 2px; }
.case-numbers { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.case-numbers span { background: rgba(6,182,212,.08); border: 1px solid rgba(6,182,212,.15); color: var(--cyan); padding: 4px 12px; border-radius: 99px; font-size: 12px; font-weight: 600; }

/* ===== FOUNDER (HOME) ===== */
.founder-section { display: flex; gap: 40px; align-items: flex-start; }
.founder-info { flex: 1; }
.founder-badge { display: inline-block; background: rgba(139,92,246,.1); border: 1px solid rgba(139,92,246,.2); color: var(--violet); padding: 6px 16px; border-radius: 99px; font-size: 12px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }

/* ===== DIFF GRID (HOME) ===== */
.diff-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.diff-item { background: var(--deep); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.diff-item.highlight { border-color: rgba(6,182,212,.3); background: rgba(6,182,212,.05); }
.diff-label { font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 8px; }
.diff-item.highlight .diff-label { color: var(--cyan); }
.diff-item p { font-size: 15px; color: var(--snow2); }

/* ===== METODOLOGIA PAGE ===== */
.pilar-detail { margin-bottom: 48px; background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.pilar-detail-header { display: flex; align-items: center; gap: 20px; padding: 28px 32px; border-bottom: 1px solid var(--line); }
.pilar-detail-num { width: 48px; height: 48px; border-radius: 50%; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 800; color: #fff; flex-shrink: 0; }
.pilar-detail-header h2 { font-size: 24px; font-weight: 800; letter-spacing: -.03em; }
.pilar-detail-sub { color: var(--muted); font-size: 14px; margin-top: 2px; }
.pilar-detail-body { padding: 28px 32px; }
.pilar-detail-body p { color: var(--snow2); font-size: 16px; margin-bottom: 16px; line-height: 1.7; }
.pilar-detail-body h4 { font-size: 16px; font-weight: 700; margin: 24px 0 12px; color: var(--cyan); }
.pilar-detail-body ul { padding-left: 20px; margin-bottom: 20px; }
.pilar-detail-body li { color: var(--snow2); font-size: 15px; margin-bottom: 6px; }
.pilar-case { background: rgba(6,182,212,.05); border: 1px solid rgba(6,182,212,.15); border-radius: var(--radius-sm); padding: 16px 20px; margin-top: 16px; font-size: 14px; color: var(--snow2); line-height: 1.7; }
.pilar-case strong { color: var(--cyan); }

/* ===== SOBRE PAGE ===== */
.about-story { line-height: 1.8; }
.about-story p { color: var(--snow2); font-size: 17px; margin-bottom: 16px; }
.about-story h3 { font-size: 24px; font-weight: 800; letter-spacing: -.03em; margin-bottom: 16px; }
.about-audience { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 20px; }
.about-audience-card { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.about-audience-card h4 { font-size: 18px; font-weight: 800; margin-bottom: 8px; }
.about-audience-card p { color: var(--muted); font-size: 14px; margin: 0; }
.about-companies { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.about-company { background: var(--deep2); border: 1px solid var(--line); padding: 8px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 700; }
.about-company span { color: var(--muted); font-weight: 400; margin-left: 6px; font-size: 13px; }

/* ===== AUTH ===== */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.auth-card { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); padding: 48px; width: 100%; max-width: 440px; }
.auth-card h2 { font-size: 28px; font-weight: 800; letter-spacing: -.03em; margin-bottom: 8px; }
.auth-card .sub { color: var(--muted); margin-bottom: 32px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 700; color: var(--muted); margin-bottom: 8px; letter-spacing: .04em; text-transform: uppercase; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 14px 16px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--deep); color: var(--snow); font-size: 15px; font-family: inherit; transition: border-color .2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--cyan); }
.form-group textarea { resize: vertical; min-height: 80px; }
.error-msg { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.3); color: var(--alert); padding: 12px 16px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 20px; }
.auth-link { text-align: center; margin-top: 24px; font-size: 14px; color: var(--muted); }

/* ===== ONBOARDING ===== */
.onboarding { min-height: 100vh; padding: 60px 24px; display: flex; flex-direction: column; align-items: center; }
.onboarding h1 { font-size: 36px; font-weight: 800; letter-spacing: -.03em; margin-bottom: 8px; }
.onboarding .lead { color: var(--muted); margin-bottom: 40px; font-size: 18px; }
.onboarding-form { width: 100%; max-width: 600px; }
.track-select { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 32px; }
.track-option { background: var(--deep2); border: 2px solid var(--line); border-radius: var(--radius); padding: 28px; cursor: pointer; transition: all .2s; text-align: center; }
.track-option:hover { border-color: var(--cyan); }
.track-option.selected { border-color: var(--cyan); background: rgba(6,182,212,.08); }
.track-option input { display: none; }
.track-option h3 { font-size: 22px; font-weight: 800; margin-top: 8px; }
.track-option p { color: var(--muted); font-size: 13px; margin-top: 6px; }

/* ===== DASHBOARD ===== */
.dash { padding: 40px 0; }
.dash-header { display: flex; align-items: center; gap: 24px; margin-bottom: 40px; }
.dash-avatar { width: 64px; height: 64px; border-radius: 50%; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 26px; font-weight: 800; color: #fff; }
.dash-info h1 { font-size: 28px; font-weight: 800; letter-spacing: -.03em; }
.dash-info .level-row { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.dash-info .level-badge { background: var(--deep2); border: 1px solid var(--line); padding: 4px 12px; border-radius: 99px; font-size: 12px; font-weight: 700; color: var(--cyan); }
.dash-info .xp-text { font-size: 13px; color: var(--muted); }

.progress-bar { height: 10px; background: var(--line); border-radius: 5px; overflow: hidden; margin-top: 8px; }
.progress-bar .fill { height: 100%; background: var(--grad); border-radius: 5px; transition: width .5s ease; }

.dash-grid { display: grid; grid-template-columns: 1fr 340px; gap: 24px; }
@media (max-width: 900px) { .dash-grid { grid-template-columns: 1fr; } }

.dash-main { display: flex; flex-direction: column; gap: 24px; }
.dash-sidebar { display: flex; flex-direction: column; gap: 24px; }

.card { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card h3 { font-size: 20px; font-weight: 800; letter-spacing: -.02em; margin-bottom: 16px; }
.card h3 .count { font-weight: 400; color: var(--muted); font-size: 14px; margin-left: 8px; }

/* ===== PILLAR GROUPS (DASHBOARD) ===== */
.pillar-group { margin-bottom: 24px; }
.pillar-group:last-child { margin-bottom: 0; }
.pillar-header { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.pillar-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--grad); flex-shrink: 0; }
.pillar-label { font-size: 13px; font-weight: 700; color: var(--cyan); text-transform: uppercase; letter-spacing: .06em; flex: 1; }
.pillar-progress { font-size: 12px; color: var(--muted); font-weight: 600; }

/* ===== CHALLENGE LIST ===== */
.challenge-list { display: flex; flex-direction: column; gap: 8px; }
.challenge-item { display: flex; align-items: center; gap: 16px; padding: 14px 16px; border-radius: var(--radius-sm); border: 1px solid var(--line); transition: all .2s; cursor: pointer; text-decoration: none; color: inherit; }
.challenge-item:hover { border-color: var(--cyan); background: rgba(6,182,212,.04); color: inherit; }
.challenge-item.locked { opacity: .4; cursor: default; pointer-events: none; }
.challenge-item.completed { border-color: rgba(6,182,212,.3); background: rgba(6,182,212,.06); }
.challenge-num { width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; flex-shrink: 0; }
.challenge-num.available { background: var(--grad); color: #fff; }
.challenge-num.in_progress { background: var(--violet); color: #fff; animation: pulse 2s infinite; }
.challenge-num.completed { background: rgba(6,182,212,.2); color: var(--cyan); }
.challenge-num.locked { background: var(--line); color: var(--muted); }
@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:.7; } }
.challenge-info { flex: 1; min-width: 0; }
.challenge-info .title { font-weight: 700; font-size: 15px; }
.challenge-info .sub { font-size: 13px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.challenge-meta { display: flex; gap: 10px; align-items: center; font-size: 12px; color: var(--muted); font-weight: 600; flex-shrink: 0; }
.xp-badge { background: rgba(139,92,246,.15); color: var(--violet); padding: 4px 10px; border-radius: 99px; font-weight: 700; }

/* ===== ACHIEVEMENTS ===== */
.ach-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.ach { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 22px; background: var(--deep); border: 1px solid var(--line); position: relative; }
.ach.earned { background: rgba(6,182,212,.1); border-color: rgba(6,182,212,.3); }
.ach.locked { opacity: .3; filter: grayscale(1); }
.ach[title] { cursor: help; }

/* ===== CHALLENGE PAGE ===== */
.challenge-page { padding: 40px 0; max-width: 900px; margin: 0 auto; }
.challenge-header { margin-bottom: 32px; }
.challenge-header .breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.challenge-header .breadcrumb a { color: var(--cyan); }
.challenge-pillar-badge { display: inline-block; background: rgba(6,182,212,.1); border: 1px solid rgba(6,182,212,.2); color: var(--cyan); padding: 4px 14px; border-radius: 99px; font-size: 12px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; margin-bottom: 12px; }
.challenge-header h1 { font-size: 32px; font-weight: 800; letter-spacing: -.03em; }
.challenge-header .desc { color: var(--muted); margin-top: 12px; font-size: 16px; line-height: 1.7; }
.challenge-header .challenge-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.challenge-header .tag { background: var(--deep2); border: 1px solid var(--line); padding: 6px 14px; border-radius: 99px; font-size: 12px; font-weight: 700; color: var(--muted); }

/* ===== CHAT ===== */
.chat-area { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.chat-messages { padding: 24px; max-height: 500px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px; }
.chat-msg { max-width: 80%; padding: 16px 20px; border-radius: 16px; font-size: 15px; line-height: 1.6; }
.chat-msg.assistant { background: var(--deep3); border: 1px solid var(--line); align-self: flex-start; border-bottom-left-radius: 4px; }
.chat-msg.user { background: rgba(6,182,212,.12); border: 1px solid rgba(6,182,212,.2); align-self: flex-end; border-bottom-right-radius: 4px; }
.chat-msg p { margin-bottom: 8px; }
.chat-msg p:last-child { margin-bottom: 0; }
.chat-msg strong { color: var(--cyan); }
.chat-msg ul, .chat-msg ol { margin: 8px 0; padding-left: 20px; }
.chat-msg li { margin-bottom: 4px; }
.chat-input { display: flex; gap: 12px; padding: 16px 24px; border-top: 1px solid var(--line); background: var(--deep); }
.chat-input textarea { flex: 1; padding: 14px 16px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--deep2); color: var(--snow); font-size: 15px; font-family: inherit; resize: none; min-height: 52px; max-height: 150px; }
.chat-input textarea:focus { outline: none; border-color: var(--cyan); }
.chat-input .btn { flex-shrink: 0; }
.typing { display: flex; gap: 4px; align-items: center; padding: 16px 20px; }
.typing span { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); animation: typing .8s infinite; }
.typing span:nth-child(2) { animation-delay: .15s; }
.typing span:nth-child(3) { animation-delay: .3s; }
@keyframes typing { 0%,100% { opacity:.3; } 50% { opacity:1; } }

/* ===== QUIZ ===== */
.quiz-area { display: flex; flex-direction: column; gap: 24px; }
.quiz-question { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.quiz-question h4 { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.quiz-options { display: flex; flex-direction: column; gap: 8px; }
.quiz-option { padding: 14px 18px; border: 1px solid var(--line); border-radius: var(--radius-sm); cursor: pointer; transition: all .2s; font-size: 14px; }
.quiz-option:hover { border-color: var(--cyan); background: rgba(6,182,212,.04); }
.quiz-option.selected { border-color: var(--cyan); background: rgba(6,182,212,.1); }

/* ===== COMPLETION ===== */
.completion-modal { position: fixed; inset: 0; background: rgba(10,22,40,.9); display: flex; align-items: center; justify-content: center; z-index: 200; backdrop-filter: blur(10px); }
.completion-card { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); padding: 48px; text-align: center; max-width: 500px; width: 90%; animation: slideUp .5s ease; }
@keyframes slideUp { from { transform: translateY(40px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.completion-card h2 { font-size: 28px; font-weight: 800; margin-top: 16px; }
.completion-card .xp { font-size: 36px; font-weight: 800; margin-top: 12px; }
.completion-card .level-up { background: rgba(6,182,212,.1); border: 1px solid rgba(6,182,212,.2); border-radius: var(--radius-sm); padding: 16px; margin-top: 16px; }
.completion-card .ach-list { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.completion-card .ach-item { background: rgba(139,92,246,.1); border: 1px solid rgba(139,92,246,.2); border-radius: var(--radius-sm); padding: 12px; font-size: 14px; }

/* ===== STEPS PROGRESS ===== */
.steps-bar { display: flex; gap: 6px; margin-bottom: 24px; }
.step-dot { height: 6px; flex: 1; border-radius: 3px; background: var(--line); transition: background .3s; }
.step-dot.done { background: var(--cyan); }
.step-dot.active { background: var(--grad); }

/* ===== PROFILE ===== */
.profile-header { display: flex; align-items: center; gap: 32px; margin-bottom: 40px; }
.profile-avatar { width: 96px; height: 96px; border-radius: 50%; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 40px; font-weight: 800; color: #fff; }
.profile-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 32px; }
.profile-stat { background: var(--deep2); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; text-align: center; }
.profile-stat .num { font-size: 28px; font-weight: 800; }
.profile-stat .label { font-size: 12px; color: var(--muted); margin-top: 4px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }

/* ===== FOOTER ===== */
.footer { border-top: 1px solid var(--line); padding: 32px 0; margin-top: 80px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--muted); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--muted); font-weight: 600; transition: color .2s; }
.footer-links a:hover { color: var(--snow); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .hero .stats { gap: 24px; }
  .track-cards { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .track-select { grid-template-columns: 1fr; }
  .profile-stats { grid-template-columns: repeat(2, 1fr); }
  .chat-msg { max-width: 90%; }
  .problem-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .about-audience { grid-template-columns: 1fr; }
  .pilares-grid { grid-template-columns: 1fr 1fr; }
  .pilar-detail-header { padding: 20px; }
  .pilar-detail-body { padding: 20px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 480px) {
  .pilares-grid { grid-template-columns: 1fr; }
}