/* =============================================
   B2B Drift — Brand Stylesheet
   Improved color palette & modern design system
   ============================================= */

/* --- CSS Custom Properties --- */
:root {
    /* Primary palette — clean light theme */
    --color-bg:        #FFFFFF;
    --color-bg-alt:    #F8FAFC;
    --color-surface:   #FFFFFF;
    --color-surface-2: #F1F5F9;
    --color-border:    #E2E8F0;

    /* Accent — warm orange (same) */
    --color-accent:    #EA580C;
    --color-accent-hover: #F97316;
    --color-accent-subtle: rgba(234, 88, 12, 0.08);

    /* Secondary accents */
    --color-cyan:      #0891B2;
    --color-green:     #059669;
    --color-purple:    #6366F1;
    --color-red:       #DC2626;

    /* Text — dark text on light bg */
    --color-text:      #0F172A;
    --color-text-secondary: #475569;
    --color-text-muted: #94A3B8;

    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --section-padding: 6rem 0;
    --container-max:   1200px;

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text-secondary);
    line-height: 1.7;
    overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-text);
    line-height: 1.2;
    font-weight: 700;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Utility --- */
.gradient-text {
    background: linear-gradient(135deg, #EA580C 0%, #D97706 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-text-muted);
    display: inline-block;
    vertical-align: middle;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.938rem;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: all 0.25s var(--ease);
    white-space: nowrap;
}

.btn--primary {
    background: var(--color-accent);
    color: #fff;
    box-shadow: 0 4px 16px rgba(234, 88, 12, 0.3);
}
.btn--primary:hover {
    background: var(--color-accent-hover);
    box-shadow: 0 6px 24px rgba(234, 88, 12, 0.4);
    transform: translateY(-1px);
}

.btn--outline {
    background: transparent;
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
}
.btn--outline:hover {
    border-color: var(--color-text-muted);
    background: rgba(0,0,0,0.03);
}

.btn--lg { padding: 0.9rem 2rem; font-size: 1rem; }
.btn--full { width: 100%; justify-content: center; }

/* =============================================
   NAVIGATION
   ============================================= */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s var(--ease);
}
.nav.scrolled {
    border-bottom-color: var(--color-border);
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.nav__logo {
    font-family: var(--font-body);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}
.nav__logo span { color: var(--color-accent); }

.nav__links {
    display: flex;
    gap: 2rem;
}
.nav__links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color 0.2s;
    position: relative;
}
.nav__links a:hover,
.nav__links a.active { color: var(--color-text); }
.nav__links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--color-accent);
    transition: width 0.3s var(--ease);
}
.nav__links a:hover::after { width: 100%; }

.nav__cta { font-size: 0.875rem; }

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none; border: none;
    cursor: pointer;
    padding: 4px;
}
.nav__toggle span {
    width: 24px; height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s var(--ease);
}
.nav__toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* =============================================
   HERO
   ============================================= */
.hero {
    position: relative;
    padding: 10rem 0 6rem;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(180deg, #FFF7ED 0%, #FFFFFF 100%);
}

.hero__glow {
    position: absolute;
    top: -200px; left: 50%; transform: translateX(-50%);
    width: 800px; height: 600px;
    background: radial-gradient(ellipse, rgba(234, 88, 12, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero__grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(226, 232, 240, 0.6) 1px, transparent 1px),
        linear-gradient(90deg, rgba(226, 232, 240, 0.6) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent);
    pointer-events: none;
}

.hero__inner { position: relative; z-index: 1; }

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-size: 0.813rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
}

.hero__title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero__subtitle {
    font-size: 1.125rem;
    max-width: 580px;
    margin: 0 auto 2.5rem;
    color: var(--color-text-secondary);
}

.hero__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.hero__proof { padding-top: 2rem; }
.hero__proof-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}
.hero__stats-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 0.938rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* =============================================
   SECTIONS — shared
   ============================================= */
.section { padding: var(--section-padding); }

.section__header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 3.5rem;
}

.section__label {
    display: inline-block;
    font-size: 0.813rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}

.section__title {
    font-size: clamp(1.75rem, 3vw, 2.75rem);
    margin-bottom: 1rem;
}

.section__desc {
    font-size: 1.063rem;
    color: var(--color-text-secondary);
}

/* =============================================
   SERVICES
   ============================================= */
.services { background: var(--color-bg-alt); }

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.service-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s var(--ease);
}
.service-card:hover {
    border-color: rgba(234, 88, 12, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}

.service-card__icon {
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 12px;
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    margin-bottom: 1.25rem;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.service-card p {
    font-size: 0.938rem;
    margin-bottom: 1.25rem;
}

.service-card__list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.service-card__list li {
    font-size: 0.875rem;
    padding-left: 1.25rem;
    position: relative;
    color: var(--color-text-secondary);
}
.service-card__list li::before {
    content: '';
    position: absolute;
    left: 0; top: 0.55em;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
}

/* =============================================
   PROCESS
   ============================================= */
.process { background: var(--color-bg); }

.process__timeline {
    max-width: 640px;
    margin: 0 auto;
    position: relative;
    padding-left: 4rem;
}

.process__timeline::before {
    content: '';
    position: absolute;
    left: 28px; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
}

.process__step {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    position: relative;
}

.process__number {
    flex-shrink: 0;
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 12px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--color-accent);
    position: absolute;
    left: -4rem;
}

.process__content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.process__content p {
    font-size: 0.938rem;
}

/* =============================================
   CASE STUDIES
   ============================================= */
.case-studies { background: var(--color-bg-alt); }

.case-studies__grid {
    display: grid;
    gap: 2rem;
}

.case-card {
    display: block;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s var(--ease);
}
.case-card:hover {
    border-color: rgba(234, 88, 12, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.1);
}

.case-card__visual {
    position: relative;
    padding: 2rem;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-surface-2) 100%);
}

.case-card__svg { width: 100%; height: auto; }

.case-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 60%, var(--color-surface) 100%);
    pointer-events: none;
}

.case-card__badge {
    position: absolute;
    top: 1.25rem; right: 1.25rem;
    padding: 0.35rem 0.75rem;
    border-radius: 100px;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
}

.case-card__body { padding: 2rem; }

.case-card__tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.case-card__title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.case-card__desc {
    font-size: 0.938rem;
    margin-bottom: 1.5rem;
}

.case-card__metrics {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background: var(--color-bg-alt);
    border-radius: 12px;
}

.case-card__metric-value {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.case-card__metric-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.case-card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.938rem;
    color: var(--color-accent);
    transition: gap 0.3s var(--ease);
}
.case-card:hover .case-card__link { gap: 0.85rem; }

/* =============================================
   RESULTS
   ============================================= */
.results {
    background: var(--color-bg);
    position: relative;
    overflow: hidden;
}

.results__glow {
    position: absolute;
    bottom: -200px; left: 50%; transform: translateX(-50%);
    width: 700px; height: 500px;
    background: radial-gradient(ellipse, rgba(234, 88, 12, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

.results__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.result-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s var(--ease);
}
.result-card:hover {
    border-color: rgba(234, 88, 12, 0.3);
    transform: translateY(-4px);
}

.result-card__icon {
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 12px;
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    margin: 0 auto 1rem;
}

.result-card__value {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.result-card__label {
    font-weight: 600;
    font-size: 0.938rem;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.result-card__desc {
    font-size: 0.813rem;
    color: var(--color-text-muted);
}

/* =============================================
   CONTACT
   ============================================= */
.contact { background: var(--color-bg-alt); }

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact__desc {
    font-size: 1.063rem;
    margin-bottom: 2rem;
}

.contact__steps {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.contact__step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}
.contact__step-num {
    flex-shrink: 0;
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 8px;
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    font-weight: 700;
    font-size: 0.875rem;
}
.contact__step strong {
    display: block;
    color: var(--color-text);
    font-size: 0.938rem;
    margin-bottom: 0.15rem;
}
.contact__step p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.contact__form {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.form-group {
    margin-bottom: 1.25rem;
}
.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    background: var(--color-bg-alt);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.938rem;
    transition: border-color 0.2s;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-subtle);
}
.form-group textarea { resize: vertical; }

.contact__form-note {
    text-align: center;
    font-size: 0.813rem;
    color: var(--color-text-muted);
    margin-top: 1rem;
}

/* =============================================
   CTA
   ============================================= */
.cta {
    position: relative;
    text-align: center;
    background: linear-gradient(180deg, #FFFFFF 0%, #FFF7ED 50%, #FFFFFF 100%);
    overflow: hidden;
}

.cta__glow {
    position: absolute;
    top: -100px; left: 50%; transform: translateX(-50%);
    width: 600px; height: 400px;
    background: radial-gradient(ellipse, rgba(234, 88, 12, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

.cta__inner { position: relative; z-index: 1; }

.cta__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-size: 0.813rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
}

.cta__title {
    font-size: clamp(1.75rem, 3vw, 2.75rem);
    margin-bottom: 1rem;
}

.cta__desc {
    max-width: 580px;
    margin: 0 auto 2rem;
    font-size: 1.063rem;
}

.cta__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.cta__note {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
    background: #0F172A;
    border-top: 1px solid #1E293B;
    padding: 3rem 0 0;
    color: #94A3B8;
}

.footer p,
.footer li {
    color: #94A3B8;
}

.footer h4,
.footer .nav__logo {
    color: #F1F5F9;
}

.footer a:hover {
    color: #F97316;
}

.footer__inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 2rem;
}

.footer__brand p {
    font-size: 0.875rem;
    margin-top: 0.75rem;
    max-width: 300px;
}

.footer__col h4 {
    font-family: var(--font-body);
    font-size: 0.813rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #F1F5F9;
    margin-bottom: 1rem;
}
.footer__col li {
    font-size: 0.875rem;
    color: #94A3B8;
    margin-bottom: 0.5rem;
}
.footer__col a:hover { color: #F97316; }

.footer__bottom {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid #1E293B;
    padding: 1.5rem 0;
    font-size: 0.813rem;
    color: #64748B;
}

/* =============================================
   CASE STUDY PAGE — Hero
   ============================================= */
.cs-hero {
    position: relative;
    padding: 8rem 0 4rem;
    background: linear-gradient(180deg, #FFF7ED 0%, #FFFFFF 100%);
    overflow: hidden;
}

.cs-hero__back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    transition: color 0.2s;
}
.cs-hero__back:hover { color: var(--color-accent); }

.cs-hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.cs-hero__title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
}

.cs-hero__subtitle {
    font-size: 1.063rem;
    margin-bottom: 2rem;
}

.cs-hero__metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.cs-hero__metric {
    padding: 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
}
.cs-hero__metric-value {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
}
.cs-hero__metric-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.cs-hero__visual { position: relative; }
.cs-hero__svg {
    width: 100%;
    height: auto;
    border-radius: 16px;
    border: 1px solid var(--color-border);
}

/* =============================================
   CASE STUDY PAGE — Content
   ============================================= */
.cs-content {
    background: var(--color-bg-alt);
    padding: 4rem 0;
}

.cs-content__grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 4rem;
}

/* Table of Contents */
.cs-toc {
    position: sticky;
    top: 6rem;
    align-self: start;
}
.cs-toc__label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}
.cs-toc ul { display: flex; flex-direction: column; gap: 0.5rem; }
.cs-toc a {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding: 0.25rem 0 0.25rem 1rem;
    border-left: 2px solid transparent;
    transition: all 0.2s;
}
.cs-toc a:hover,
.cs-toc a.active {
    color: var(--color-text);
    border-left-color: var(--color-accent);
}

/* Main content sections */
.cs-section {
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--color-border);
}
.cs-section:last-of-type { border-bottom: none; }

.cs-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}
.cs-section p {
    font-size: 1rem;
    line-height: 1.8;
}

/* Challenges */
.cs-challenges {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}
.cs-challenge-card {
    padding: 1.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 14px;
}
.cs-challenge-card__icon {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 10px;
    background: rgba(220, 38, 38, 0.08);
    color: var(--color-red);
    margin-bottom: 1rem;
}
.cs-challenge-card h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}
.cs-challenge-card p { font-size: 0.875rem; }

/* Approach */
.cs-approach { margin-top: 1.5rem; }
.cs-approach__step { margin-bottom: 2.5rem; }
.cs-approach__step-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}
.cs-approach__step-num {
    flex-shrink: 0;
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 10px;
    background: var(--color-accent);
    color: #fff;
    font-weight: 700;
    font-size: 0.875rem;
}
.cs-approach__step-header h3 {
    font-size: 1.25rem;
}

/* Funnel */
.cs-funnel {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0;
}
.cs-funnel__level {
    padding: 1rem 1.5rem;
    border-left: 4px solid;
    background: var(--color-surface);
}
.cs-funnel__level strong {
    display: block;
    color: var(--color-text);
    margin-bottom: 0.25rem;
    font-size: 0.938rem;
}
.cs-funnel__level span {
    font-size: 0.875rem;
}
.cs-funnel__level--tofu { border-color: var(--color-cyan); }
.cs-funnel__level--mofu { border-color: var(--color-accent); }
.cs-funnel__level--bofu { border-color: var(--color-green); }

/* Email grid */
.cs-email-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1.25rem;
}
.cs-email-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
}
.cs-email-card__header {
    padding: 0.75rem 1rem;
    font-size: 0.813rem;
    font-weight: 600;
    color: #fff;
}
.cs-email-card__header--tofu { background: var(--color-cyan); color: var(--color-bg); }
.cs-email-card__header--mofu { background: var(--color-accent); }
.cs-email-card__header--bofu { background: var(--color-green); }
.cs-email-card p {
    padding: 1rem;
    font-size: 0.875rem;
}

/* Visual Proof */
.cs-visuals {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 1.5rem;
}
.cs-visual-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 1.5rem;
}
.cs-visual-card h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    margin-bottom: 1rem;
}
.cs-visual-svg {
    width: 100%;
    height: auto;
    border-radius: 12px;
}

/* Results */
.cs-results {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}
.cs-result-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    font-size: 0.938rem;
}
.cs-result-item__icon { flex-shrink: 0; padding-top: 2px; }
.cs-result-item strong { color: var(--color-text); }

/* Takeaways */
.cs-takeaways {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
}
.cs-takeaway {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    color: var(--color-text);
}

/* Bottom CTA */
.cs-bottom-cta {
    margin-top: 3rem;
}
.cs-bottom-cta__inner {
    background: linear-gradient(135deg, var(--color-surface-2) 0%, var(--color-surface) 100%);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
}
.cs-bottom-cta__inner h3 {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 1.5rem;
    line-height: 1.5;
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

.animate-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
    .services__grid { grid-template-columns: repeat(2, 1fr); }
    .results__grid { grid-template-columns: repeat(2, 1fr); }
    .footer__inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .cs-hero__inner { grid-template-columns: 1fr; }
    .cs-hero__visual { order: -1; }
    .cs-content__grid { grid-template-columns: 1fr; }
    .cs-toc { display: none; }
}

@media (max-width: 768px) {
    .nav__links, .nav__cta { display: none; }
    .nav__toggle { display: flex; }

    .nav__links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 4rem; left: 0; right: 0;
        background: #fff;
        border-bottom: 1px solid var(--color-border);
        padding: 1.5rem;
        gap: 1rem;
    }

    .hero { padding: 8rem 0 4rem; }
    .hero__title { font-size: 2.25rem; }
    .hero__stats-row { flex-direction: column; gap: 0.5rem; }
    .hero__stats-row .dot { display: none; }

    .services__grid { grid-template-columns: 1fr; }
    .results__grid { grid-template-columns: 1fr 1fr; }

    .contact__grid { grid-template-columns: 1fr; gap: 2rem; }

    .case-card__metrics { flex-direction: column; gap: 1rem; }

    .cs-challenges { grid-template-columns: 1fr; }
    .cs-email-grid { grid-template-columns: 1fr; }
    .cs-hero__metrics { grid-template-columns: repeat(2, 1fr); }

    .footer__inner { grid-template-columns: 1fr; }
    .footer__bottom { flex-direction: column; gap: 0.5rem; }
}

@media (max-width: 480px) {
    .results__grid { grid-template-columns: 1fr; }
    .cs-hero__metrics { grid-template-columns: 1fr; }
}