/* ══════════════════════════════════════════
   CAEN — APRESENTAÇÃO INSTITUCIONAL 2026
   Design System: Dark · Gold · Institucional
══════════════════════════════════════════ */

:root {
    --bg:           #000000;
    --bg-2:         #0a0a0a;
    --bg-3:         #111111;
    --gold:         #d4af37;
    --gold-bright:  #f0c040;
    --gold-dim:     rgba(212, 175, 55, 0.15);
    --white:        #ffffff;
    --zinc-100:     #f4f4f5;
    --zinc-200:     #e4e4e7;
    --zinc-400:     #a1a1aa;
    --zinc-600:     #52525b;
    --zinc-800:     #27272a;
    --zinc-900:     #18181b;
    --emerald:      #10b981;
    --glass:        rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.06);
    --font:         'Outfit', sans-serif;
    --ease:         cubic-bezier(0.2, 0.8, 0.2, 1);
    --transition:   all 0.8s var(--ease);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html, body {
    height: 100%;
    overflow: hidden;
    background: var(--bg);
    color: var(--zinc-100);
    font-family: var(--font);
}

/* ══════════════════════════════════════════
   LAYOUT SHELL
══════════════════════════════════════════ */
.presentation-wrapper {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ══════════════════════════════════════════
   PROGRESS BAR
══════════════════════════════════════════ */
.progress-bar-track {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--zinc-900);
    z-index: 200;
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--gold), var(--gold-bright));
    transition: width 0.6s var(--ease);
    width: 7.14%; /* 1/14 */
}

/* ══════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════ */
.navigation-controls {
    position: fixed;
    bottom: 44px;
    right: 52px;
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 100;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--zinc-600);
    cursor: pointer;
    width: 22px;
    height: 22px;
    transition: var(--transition);
    padding: 0;
}
.nav-btn svg { width: 100%; height: 100%; }
.nav-btn:hover { color: var(--white); transform: scale(1.15); }

.slide-indicator {
    font-size: 10px;
    font-weight: 300;
    letter-spacing: 4px;
    color: var(--zinc-600);
    text-transform: uppercase;
}
#currentSlide { color: var(--white); font-weight: 700; }

/* ══════════════════════════════════════════
   SLIDE ENGINE
══════════════════════════════════════════ */
.slides-container {
    flex: 1;
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 72px 96px 100px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.7s var(--ease), visibility 0.7s var(--ease);
}
.slide.active {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
}

/* ══════════════════════════════════════════
   BG GLOWS
══════════════════════════════════════════ */
.slide-bg-glow {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}
.glow-gold::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 600px; height: 400px;
    background: radial-gradient(ellipse, rgba(212,175,55,0.07) 0%, transparent 70%);
    border-radius: 50%;
}
.glow-gold-right::after {
    content: '';
    position: absolute;
    top: 30%; right: -100px;
    width: 500px; height: 500px;
    background: radial-gradient(ellipse, rgba(212,175,55,0.06) 0%, transparent 70%);
    border-radius: 50%;
}
.glow-subtle::after {
    content: '';
    position: absolute;
    top: 40%; left: 40%;
    width: 500px; height: 300px;
    background: radial-gradient(ellipse, rgba(255,255,255,0.02) 0%, transparent 70%);
    border-radius: 50%;
}
.glow-emerald::after {
    content: '';
    position: absolute;
    top: 50%; right: 10%;
    width: 400px; height: 400px;
    background: radial-gradient(ellipse, rgba(16,185,129,0.06) 0%, transparent 70%);
    border-radius: 50%;
}

/* ══════════════════════════════════════════
   CONTENT
══════════════════════════════════════════ */
.content {
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 1;
}
.content-center {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* ══════════════════════════════════════════
   REVEAL ANIMATIONS
══════════════════════════════════════════ */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
.active .reveal { opacity: 1; transform: translateY(0); }
.active .reveal:nth-child(1) { transition-delay: 0.05s; }
.active .reveal:nth-child(2) { transition-delay: 0.15s; }
.active .reveal:nth-child(3) { transition-delay: 0.25s; }
.active .reveal:nth-child(4) { transition-delay: 0.35s; }
.active .reveal:nth-child(5) { transition-delay: 0.45s; }

/* ══════════════════════════════════════════
   TYPOGRAPHY TOKENS
══════════════════════════════════════════ */
.eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 6px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 32px;
    border-bottom: 1px solid var(--gold);
    padding-bottom: 4px;
}

.badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: var(--gold);
    border-bottom: 1px solid var(--gold);
    padding-bottom: 3px;
    margin-bottom: 44px;
}

h1, h2, h3 { font-family: var(--font); }

h2 {
    font-size: clamp(1.9rem, 3.8vw, 3.2rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 52px;
    max-width: 900px;
}
h2.thin { font-weight: 300; }

.text-gold { color: var(--gold); }
.text-dot  { color: var(--gold); }

/* ══════════════════════════════════════════
   SLIDE 1 — HERO CAPA
══════════════════════════════════════════ */
.hero-title {
    font-size: clamp(5rem, 14vw, 12rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -8px;
    margin-bottom: 32px;
}
.hero-subtitle {
    font-size: clamp(1.1rem, 1.8vw, 1.5rem);
    font-weight: 300;
    color: var(--zinc-400);
    margin-bottom: 40px;
    line-height: 1.6;
}
.divider-line {
    width: 64px;
    height: 1px;
    background: var(--gold);
    margin: 0 auto 28px;
}
.hero-tagline {
    font-size: 11px;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: var(--zinc-600);
    font-weight: 400;
}

/* ══════════════════════════════════════════
   SLIDE 2 — QUEM SOMOS
══════════════════════════════════════════ */
.two-col {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 64px;
    align-items: start;
}
.col-text p {
    font-size: 1.1rem;
    color: var(--zinc-400);
    line-height: 1.75;
    margin-bottom: 20px;
    font-weight: 300;
}
.col-text p strong { color: var(--zinc-100); font-weight: 500; }
.col-stats {
    display: flex;
    flex-direction: column;
    gap: 32px;
    border-left: 1px solid var(--glass-border);
    padding-left: 48px;
}
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-number {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--gold);
    line-height: 1;
    letter-spacing: -2px;
}
.stat-label {
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--zinc-600);
    font-weight: 400;
}

/* ══════════════════════════════════════════
   SLIDE 3 — PROPÓSITO
══════════════════════════════════════════ */
.big-quote {
    font-size: clamp(1.5rem, 3vw, 2.6rem);
    font-weight: 300;
    font-style: italic;
    color: var(--zinc-100);
    max-width: 800px;
    line-height: 1.4;
    letter-spacing: -1px;
    margin-bottom: 36px;
    position: relative;
}
.big-quote::before {
    content: '"';
    font-size: 8rem;
    color: var(--gold);
    opacity: 0.12;
    position: absolute;
    top: -40px;
    left: -30px;
    font-family: Georgia, serif;
    line-height: 1;
}
.quote-sub {
    font-size: 1.05rem;
    color: var(--zinc-400);
    max-width: 640px;
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: 56px;
}
.three-pillars {
    display: flex;
    gap: 48px;
    justify-content: center;
    border-top: 1px solid var(--glass-border);
    padding-top: 40px;
    width: 100%;
}
.pillar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.pillar-icon {
    font-size: 24px;
    color: var(--gold);
    opacity: 0.6;
}
.pillar-text {
    font-size: 11px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--zinc-400);
    font-weight: 700;
}

/* ══════════════════════════════════════════
   SLIDE 4 — SERVIÇOS
══════════════════════════════════════════ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--glass-border);
    border: 1px solid var(--glass-border);
}
.service-card {
    background: var(--bg);
    padding: 40px 28px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    overflow: hidden;
}
.service-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    height: 2px;
    background: var(--gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}
.service-card:hover::after { transform: scaleX(1); }
.service-card:hover { background: rgba(212,175,55,0.02); }

.service-number {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--gold);
    font-weight: 700;
    opacity: 0.7;
}
.service-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}
.service-body p {
    font-size: 13px;
    color: var(--zinc-400);
    line-height: 1.65;
    font-weight: 300;
}

/* ══════════════════════════════════════════
   SLIDE 5 — MÉTODO
══════════════════════════════════════════ */
.method-flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    gap: 0;
    align-items: start;
    border-top: 1px solid var(--glass-border);
    padding-top: 48px;
}
.method-step {
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.method-step:first-child { padding-left: 0; }
.method-step:last-child  { padding-right: 0; }

.active-step .step-tag { color: var(--gold) !important; }
.active-step .step-title { color: var(--gold) !important; }

.step-tag {
    font-size: 10px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--zinc-600);
    font-weight: 700;
}
.step-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.5px;
}
.step-desc {
    font-size: 13px;
    color: var(--zinc-400);
    line-height: 1.6;
    font-weight: 300;
}
.method-arrow {
    display: flex;
    align-items: flex-start;
    padding-top: 26px;
    color: var(--zinc-800);
    font-size: 1.2rem;
    font-weight: 300;
    padding-left: 8px;
    padding-right: 8px;
}

/* ══════════════════════════════════════════
   SLIDE 6 — DIFERENCIAIS
══════════════════════════════════════════ */
.diff-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.diff-item {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    padding: 28px 0;
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}
.diff-item:last-child { border-bottom: none; }
.diff-item:hover .diff-icon { color: var(--gold); }

.diff-icon {
    font-size: 18px;
    color: var(--zinc-800);
    transition: color 0.4s;
    flex-shrink: 0;
    margin-top: 2px;
}
.diff-body strong {
    display: block;
    font-size: 1.05rem;
    color: var(--white);
    margin-bottom: 6px;
    font-weight: 600;
    letter-spacing: -0.3px;
}
.diff-body p {
    font-size: 13px;
    color: var(--zinc-400);
    line-height: 1.6;
    font-weight: 300;
}

/* ══════════════════════════════════════════
   SLIDE 7 — NUMBERS
══════════════════════════════════════════ */
.market-numbers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}
.market-card {
    border: 1px solid var(--glass-border);
    padding: 40px 32px;
    background: var(--glass);
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: var(--transition);
}
.market-card:hover, .featured-card {
    border-color: rgba(212,175,55,0.3);
    background: rgba(212,175,55,0.02);
}
.mn-value {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
    letter-spacing: -3px;
}
.mn-label {
    font-size: 12px;
    color: var(--zinc-400);
    font-weight: 300;
    line-height: 1.5;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.mn-bar {
    height: 2px;
    background: var(--zinc-900);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}
.mn-fill {
    height: 100%;
    background: var(--zinc-600);
    border-radius: 2px;
}
.gold-fill { background: var(--gold); }
.market-conclusion {
    font-size: 13px;
    color: var(--zinc-600);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 400;
    border-left: 2px solid var(--gold);
    padding-left: 20px;
}

/* ══════════════════════════════════════════
   SLIDES 8 & 9 — CASES
══════════════════════════════════════════ */
.case-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}
.case-context {}
.case-intro {
    font-size: 1.05rem;
    color: var(--zinc-400);
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: 28px;
}
.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.tag {
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--zinc-600);
    border: 1px solid var(--glass-border);
    padding: 6px 14px;
    font-weight: 700;
}

.case-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--glass-border);
    border: 1px solid var(--glass-border);
}
.case-metric {
    background: var(--bg);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.gold-metric {
    background: rgba(212,175,55,0.03);
}
.cm-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
    letter-spacing: -1.5px;
}
.gold-metric .cm-value { color: var(--gold); }
.cm-label {
    font-size: 11px;
    color: var(--zinc-400);
    font-weight: 300;
    line-height: 1.4;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ══════════════════════════════════════════
   SLIDE 10 — ESCALA
══════════════════════════════════════════ */
.scale-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--glass-border);
    border: 1px solid var(--glass-border);
    margin-bottom: 32px;
}
.scale-card {
    background: var(--bg);
    padding: 52px 40px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.featured-scale { background: rgba(212,175,55,0.03); }
.sc-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
    letter-spacing: -3px;
}
.sc-label {
    font-size: 12px;
    color: var(--zinc-400);
    font-weight: 300;
    line-height: 1.5;
    max-width: 200px;
}
.scale-note {
    font-size: 11px;
    color: var(--zinc-600);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border-left: 2px solid var(--glass-border);
    padding-left: 20px;
    font-weight: 400;
}

/* ══════════════════════════════════════════
   SLIDE 11 — IA
══════════════════════════════════════════ */
.ia-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--glass-border);
    border: 1px solid var(--glass-border);
}
.ia-card {
    background: var(--bg);
    padding: 36px 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: var(--transition);
}
.ia-card:hover { background: rgba(212,175,55,0.02); }
.ia-icon {
    font-size: 1.4rem;
    color: var(--gold);
    opacity: 0.5;
}
.ia-card h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.3px;
}
.ia-card p {
    font-size: 12.5px;
    color: var(--zinc-400);
    line-height: 1.6;
    font-weight: 300;
}

/* ══════════════════════════════════════════
   SLIDE 12 — PLANOS
══════════════════════════════════════════ */
.plans-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.plan-card {
    border: 1px solid var(--glass-border);
    padding: 48px 40px;
    background: var(--glass);
    display: flex;
    flex-direction: column;
    gap: 0;
    transition: var(--transition);
}
.plan-card:hover { border-color: rgba(212,175,55,0.2); }
.plan-featured {
    border-color: rgba(212,175,55,0.25);
    background: rgba(212,175,55,0.02);
    position: relative;
}

.plan-tag {
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--zinc-600);
    font-weight: 700;
    margin-bottom: 12px;
}
.gold-tag { color: var(--gold); }
.plan-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.5px;
    margin-bottom: 6px;
}
.plan-desc {
    font-size: 12px;
    color: var(--zinc-600);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 400;
    margin-bottom: 28px;
}
.plan-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 4px;
}
.plan-type {
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--zinc-600);
    margin-bottom: 32px;
    font-weight: 700;
}
.plan-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.plan-list li {
    font-size: 13px;
    color: var(--zinc-400);
    font-weight: 300;
    padding-left: 16px;
    position: relative;
    line-height: 1.5;
}
.plan-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--zinc-700);
    font-size: 11px;
}
.plan-featured .plan-list li::before { color: var(--gold); opacity: 0.5; }

/* ══════════════════════════════════════════
   SLIDE 13 — ROI / DEPOIMENTO
══════════════════════════════════════════ */
.roi-block {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 40px;
}
.roi-percent {
    font-size: 7rem;
    font-weight: 900;
    color: var(--emerald);
    letter-spacing: -6px;
    line-height: 1;
}
.roi-text {
    font-size: 1.2rem;
    color: var(--zinc-400);
    max-width: 200px;
    text-align: left;
    line-height: 1.4;
    font-weight: 300;
}
.testimonial-quote {
    font-size: clamp(1rem, 1.6vw, 1.4rem);
    font-style: italic;
    color: var(--zinc-400);
    max-width: 700px;
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: 40px;
}
.roi-checklist {
    display: flex;
    gap: 40px;
    justify-content: center;
    border-top: 1px solid var(--glass-border);
    padding-top: 32px;
    width: 100%;
}
.rcheck {
    font-size: 12px;
    color: var(--zinc-400);
    letter-spacing: 1px;
    font-weight: 400;
}

/* ══════════════════════════════════════════
   SLIDE 14 — FECHAMENTO
══════════════════════════════════════════ */
.logo-big {
    font-size: clamp(3rem, 7vw, 6rem);
    font-weight: 900;
    letter-spacing: -3px;
    color: var(--white);
    margin-bottom: 32px;
}
.closing-title {
    font-size: clamp(1.8rem, 3.5vw, 3rem);
    font-weight: 300;
    line-height: 1.25;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
    max-width: 680px;
}
.closing-sub {
    font-size: 12px;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: var(--zinc-600);
    margin-bottom: 52px;
    font-weight: 400;
}
.cta-btn {
    display: inline-block;
    text-decoration: none;
    color: var(--bg);
    background: var(--gold);
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 4px;
    text-transform: uppercase;
    padding: 18px 40px;
    transition: var(--transition);
    margin-bottom: 48px;
}
.cta-btn:hover {
    background: var(--gold-bright);
    letter-spacing: 6px;
}
.closing-info {
    display: flex;
    gap: 16px;
    align-items: center;
    font-size: 11px;
    color: var(--zinc-600);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-weight: 400;
}
.dot-sep { color: var(--zinc-800); }

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
.presentation-footer {
    padding: 28px 96px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--glass-border);
    flex-shrink: 0;
}
.logo {
    font-weight: 900;
    font-size: 14px;
    color: var(--white);
    letter-spacing: 3px;
}
.info {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--zinc-800);
    font-weight: 400;
}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 1200px) {
    .slide { padding: 60px 60px 90px; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .ia-grid { grid-template-columns: repeat(2, 1fr); }
    .method-flow { grid-template-columns: 1fr; gap: 24px; }
    .method-arrow { display: none; }
    .two-col { grid-template-columns: 1fr; gap: 40px; }
    .col-stats { border-left: none; border-top: 1px solid var(--glass-border); padding-left: 0; padding-top: 32px; flex-direction: row; flex-wrap: wrap; gap: 24px; }
}

@media (max-width: 900px) {
    .slide { padding: 40px 40px 80px; overflow-y: auto; }
    .market-numbers { grid-template-columns: 1fr; }
    .case-layout { grid-template-columns: 1fr; gap: 32px; }
    .case-metrics { grid-template-columns: 1fr 1fr; }
    .scale-grid { grid-template-columns: 1fr; }
    .plans-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 5rem; letter-spacing: -5px; }
    .presentation-footer { padding: 20px 40px; }
    .navigation-controls { right: 24px; bottom: 24px; }
    .roi-percent { font-size: 4.5rem; }
    .roi-block { flex-direction: column; gap: 8px; }
    .roi-checklist { flex-direction: column; gap: 12px; }
    .three-pillars { gap: 24px; }
}