/* ==========================================================================
   Hidden Street Digital
   Warm editorial system: ivory paper, deep ink, ember accent.
   ========================================================================== */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Surfaces */
    --paper: #f7f3ec;
    --paper-2: #f1eae0;
    --paper-3: #e7dccd;
    --ink: #14110d;
    --ink-2: #1d1913;
    --ink-3: #2b251d;

    /* Accents */
    --ember: #d8542a;
    --ember-deep: #b34118;
    --ember-soft: rgba(216, 84, 42, 0.12);
    --brass: #ad8340;
    --moss: #33503f;

    /* Type */
    --text: #14110d;
    --text-soft: #574e43;
    --text-mute: #857a6c;
    --text-on-ink: #f4efe6;
    --text-on-ink-soft: #b4aa9c;

    /* Lines */
    --line: rgba(20, 17, 13, 0.12);
    --line-strong: rgba(20, 17, 13, 0.24);
    --line-on-ink: rgba(244, 239, 230, 0.16);

    /* Families */
    --font-display: 'Fraunces', 'Georgia', 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Radii */
    --r-sm: 6px;
    --r-md: 14px;
    --r-lg: 24px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(20, 17, 13, 0.05), 0 4px 12px rgba(20, 17, 13, 0.05);
    --shadow-md: 0 2px 6px rgba(20, 17, 13, 0.06), 0 16px 40px rgba(20, 17, 13, 0.09);
    --shadow-lg: 0 8px 24px rgba(20, 17, 13, 0.1), 0 32px 80px rgba(20, 17, 13, 0.16);

    /* Rhythm */
    --section-y: 8rem;
    --shell: 1180px;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text);
    background: var(--paper);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body.nav-open {
    overflow: hidden;
}

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

::selection {
    background: var(--ink);
    color: var(--paper);
}

a {
    color: inherit;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 1rem;
    z-index: 300;
    padding: 0.75rem 1.25rem;
    background: var(--ink);
    color: var(--paper);
    border-radius: var(--r-sm);
    font-size: 0.875rem;
    text-decoration: none;
}

.skip-link:focus {
    top: 1rem;
}

:focus-visible {
    outline: 2px solid var(--ember);
    outline-offset: 3px;
}

/* Paper grain */
.grain {
    position: fixed;
    inset: 0;
    z-index: 250;
    pointer-events: none;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.shell {
    width: 100%;
    max-width: var(--shell);
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: var(--section-y) 0;
    position: relative;
}

/* ==========================================================================
   Typography primitives
   ========================================================================== */

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-variation-settings: 'SOFT' 20, 'WONK' 0;
}

.kicker {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ember-deep);
    margin-bottom: 1.5rem;
}

.kicker-light {
    color: var(--ember);
}

.section-head {
    max-width: 46rem;
    margin-bottom: 4.5rem;
}

.section-title {
    font-size: clamp(2rem, 4.2vw, 3.25rem);
    margin-bottom: 1.5rem;
}

.section-lede {
    font-size: 1.125rem;
    color: var(--text-soft);
    max-width: 40rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-soft);
    padding: 0.4rem 0.9rem 0.4rem 0.7rem;
    border: 1px solid var(--line-strong);
    border-radius: 100px;
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.5);
}

.eyebrow-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ember);
    box-shadow: 0 0 0 3px var(--ember-soft);
    animation: breathe 2.6s ease-in-out infinite;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    padding: 0.95rem 1.6rem;
    border: 1px solid transparent;
    border-radius: 100px;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.25s ease, background-color 0.25s ease,
                color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.btn-arrow {
    transition: transform 0.25s ease;
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-primary {
    background: var(--ink);
    color: var(--paper);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--ember);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--line-strong);
}

.btn-ghost:hover {
    border-color: var(--ink);
    background: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

.btn-quiet {
    background: transparent;
    color: var(--text);
    border-color: var(--line-strong);
    padding: 0.8rem 1.4rem;
}

.btn-quiet:hover {
    border-color: var(--ember);
    color: var(--ember-deep);
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 200;
    padding: 1.35rem 0;
    transition: padding 0.3s ease, background-color 0.3s ease,
                box-shadow 0.3s ease, border-color 0.3s ease;
    border-bottom: 1px solid transparent;
}

.site-header.is-stuck {
    padding: 0.75rem 0;
    background: rgba(247, 243, 236, 0.86);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom-color: var(--line);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: var(--ink);
    color: var(--ember);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.brand:hover .brand-mark {
    transform: rotate(-8deg);
}

.brand-mark svg {
    width: 22px;
    height: 22px;
}

.brand-mark-lg {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--ember);
    color: var(--ink);
}

.brand-mark-lg svg {
    width: 28px;
    height: 28px;
}

.brand-words {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.015em;
}

.brand-sub {
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--text-mute);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.nav-link {
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-soft);
    text-decoration: none;
    transition: color 0.25s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0;
    height: 1.5px;
    background: var(--ember);
    transition: width 0.28s ease;
}

.nav-link:hover {
    color: var(--text);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--paper);
    background: var(--ink);
    padding: 0.6rem 1.15rem;
    border-radius: 100px;
    transition: background-color 0.25s ease, transform 0.25s ease;
}

.nav-cta:hover {
    background: var(--ember);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0 10px;
    background: transparent;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    height: 1.5px;
    background: var(--ink);
    transition: transform 0.3s ease, opacity 0.25s ease;
}

body.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

body.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
}

body.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
    padding-top: clamp(8rem, 15vh, 11rem);
    padding-bottom: clamp(4rem, 8vh, 7rem);
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -30%;
    right: -10%;
    width: 70vw;
    height: 70vw;
    max-width: 900px;
    max-height: 900px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(216, 84, 42, 0.14) 0%, rgba(173, 131, 64, 0.07) 42%, transparent 68%);
    pointer-events: none;
    animation: drift 18s ease-in-out infinite;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    gap: 4.5rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 6.2vw, 4.75rem);
    line-height: 1.02;
    margin-bottom: 1.75rem;
}

.hero-title em {
    display: block;
    font-style: italic;
    font-weight: 300;
    color: var(--ember-deep);
    font-variation-settings: 'SOFT' 60, 'WONK' 1;
}

.hero-lede {
    font-size: 1.1875rem;
    color: var(--text-soft);
    max-width: 34rem;
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
    margin-bottom: 3.5rem;
}

.hero-proof {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
    list-style: none;
    padding-top: 2rem;
    border-top: 1px solid var(--line);
}

.hero-proof li {
    display: flex;
    flex-direction: column;
}

.hero-proof strong {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero-proof span {
    font-size: 0.8125rem;
    color: var(--text-mute);
    letter-spacing: 0.02em;
}

/* Hero visual */
.hero-visual {
    position: relative;
}

.visual-frame {
    position: relative;
    aspect-ratio: 1 / 1.08;
    border-radius: var(--r-lg);
    background: linear-gradient(155deg, var(--ink-3) 0%, var(--ink) 58%, #0d0b08 100%);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.visual-map {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, rgba(244, 239, 230, 0.06) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(244, 239, 230, 0.06) 1px, transparent 1px);
    background-size: 46px 46px;
}

.map-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, rgba(216, 84, 42, 0.55), transparent);
    height: 1.5px;
    left: -20%;
    width: 140%;
}

.map-line-1 {
    top: 28%;
    transform: rotate(-24deg);
}

.map-line-2 {
    top: 62%;
    transform: rotate(16deg);
    background: linear-gradient(90deg, transparent, rgba(173, 131, 64, 0.5), transparent);
}

.map-line-3 {
    top: 84%;
    transform: rotate(-8deg);
    background: linear-gradient(90deg, transparent, rgba(244, 239, 230, 0.22), transparent);
}

.map-pin {
    position: absolute;
    top: 30%;
    left: 44%;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--ember);
    box-shadow: 0 0 0 0 rgba(216, 84, 42, 0.5);
    animation: ping 2.8s ease-out infinite;
}

.float-card {
    position: absolute;
    background: var(--paper);
    border-radius: var(--r-md);
    padding: 1.15rem 1.35rem;
    box-shadow: var(--shadow-md);
    animation: bob 7s ease-in-out infinite;
}

.float-card-metric {
    top: 8%;
    left: 6%;
    width: 58%;
    color: var(--moss);
}

.float-card-cac {
    top: 40%;
    right: 5%;
    width: 42%;
    animation-delay: -2.4s;
}

.float-card-ship {
    bottom: 7%;
    left: 11%;
    width: 66%;
    animation-delay: -4.6s;
}

.fc-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-mute);
    margin-bottom: 0.3rem;
}

.fc-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--moss);
}

.fc-value-down {
    color: var(--ember-deep);
}

.fc-spark {
    margin-top: 0.75rem;
    height: 32px;
    color: var(--moss);
}

.fc-spark svg {
    width: 100%;
    height: 100%;
}

.fc-ship {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
}

.fc-bars {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-top: 0.8rem;
}

.fc-bars span {
    display: block;
    height: 5px;
    width: var(--w);
    border-radius: 100px;
    background: var(--paper-3);
}

.fc-bars span:first-child {
    background: var(--ember);
}

/* ==========================================================================
   Marquee
   ========================================================================== */

.marquee {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: var(--paper-2);
    padding: 1.1rem 0;
    overflow: hidden;
    white-space: nowrap;
}

.marquee-track {
    display: inline-flex;
    align-items: center;
    gap: 1.75rem;
    animation: slide 42s linear infinite;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-mute);
}

.marquee-dot {
    color: var(--ember);
    letter-spacing: 0;
}

/* ==========================================================================
   Reveal animation
   ========================================================================== */

.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

.engine-grid .reveal:nth-child(2),
.service-grid .reveal:nth-child(2),
.number-grid .reveal:nth-child(2),
.quote-grid .reveal:nth-child(2),
.post-grid .reveal:nth-child(2),
.stack-grid .reveal:nth-child(2),
.plan-grid .reveal:nth-child(2) {
    transition-delay: 0.09s;
}

.service-grid .reveal:nth-child(3),
.number-grid .reveal:nth-child(3),
.quote-grid .reveal:nth-child(3),
.post-grid .reveal:nth-child(3),
.stack-grid .reveal:nth-child(3),
.plan-grid .reveal:nth-child(3) {
    transition-delay: 0.18s;
}

.service-grid .reveal:nth-child(n + 4),
.number-grid .reveal:nth-child(n + 4),
.stack-grid .reveal:nth-child(n + 4) {
    transition-delay: 0.24s;
}

/* ==========================================================================
   Studio
   ========================================================================== */

.studio {
    background: var(--paper);
}

.engine-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.engine-card {
    padding: 2.75rem;
    border-radius: var(--r-lg);
    background: var(--paper-2);
    border: 1px solid var(--line);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.engine-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.engine-card-alt {
    background: var(--ink);
    border-color: transparent;
    color: var(--text-on-ink);
}

.engine-index {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-mute);
    margin-bottom: 1rem;
}

.engine-card-alt .engine-index {
    color: var(--ember);
}

.engine-title {
    font-size: 2rem;
    margin-bottom: 1.1rem;
}

.engine-body {
    color: var(--text-soft);
    margin-bottom: 1.75rem;
}

.engine-card-alt .engine-body {
    color: var(--text-on-ink-soft);
}

.engine-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
}

.engine-card-alt .engine-list {
    border-top-color: var(--line-on-ink);
}

.engine-list li {
    position: relative;
    padding-left: 1.4rem;
    font-size: 0.9375rem;
}

.engine-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 8px;
    height: 1.5px;
    background: var(--ember);
}

.belief-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    padding-top: 3rem;
    border-top: 1px solid var(--line);
}

.belief h4 {
    font-size: 1.1875rem;
    margin-bottom: 0.6rem;
}

.belief p {
    font-size: 0.9375rem;
    color: var(--text-soft);
}

/* ==========================================================================
   Services
   ========================================================================== */

.services {
    background: var(--paper-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.service-card {
    position: relative;
    padding: 2.25rem 2rem 2rem;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    overflow: hidden;
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--ember);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.service-card:hover::after {
    transform: scaleX(1);
}

.service-num {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ember);
    letter-spacing: 0.06em;
    margin-bottom: 1.25rem;
}

.service-title {
    font-size: 1.4375rem;
    margin-bottom: 0.85rem;
}

.service-body {
    font-size: 0.9375rem;
    color: var(--text-soft);
    margin-bottom: 1.5rem;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    list-style: none;
}

.tag-row li {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--text-soft);
    padding: 0.3rem 0.7rem;
    background: var(--paper-2);
    border: 1px solid var(--line);
    border-radius: 100px;
}

/* ==========================================================================
   Work
   ========================================================================== */

.work {
    background: var(--paper);
}

.case-list {
    display: flex;
    flex-direction: column;
}

.case {
    display: grid;
    grid-template-columns: 0.72fr 1.28fr;
    gap: 3rem;
    padding: 3rem 0;
    border-top: 1px solid var(--line);
}

.case:last-child {
    border-bottom: 1px solid var(--line);
}

.case-sector {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ember-deep);
    margin-bottom: 0.9rem;
}

.case-name {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin-bottom: 0.75rem;
}

.case-scope {
    font-size: 0.875rem;
    color: var(--text-mute);
}

.case-body > p {
    font-size: 1.0625rem;
    color: var(--text-soft);
    margin-bottom: 2rem;
}

.case-results {
    display: flex;
    flex-wrap: wrap;
    gap: 2.75rem;
    list-style: none;
}

.case-results li {
    display: flex;
    flex-direction: column;
}

.case-results strong {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--ink);
}

.case-results span {
    font-size: 0.8125rem;
    color: var(--text-mute);
}

/* ==========================================================================
   Numbers (dark band)
   ========================================================================== */

.numbers {
    background: var(--ink);
    color: var(--text-on-ink);
}

.numbers-head {
    text-align: center;
    max-width: 34rem;
    margin: 0 auto 4rem;
}

.numbers-title {
    font-size: clamp(1.75rem, 3.4vw, 2.5rem);
    margin-bottom: 0.85rem;
}

.numbers-head p {
    color: var(--text-on-ink-soft);
}

.number-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line-on-ink);
    border: 1px solid var(--line-on-ink);
    border-radius: var(--r-md);
    overflow: hidden;
}

.number {
    background: var(--ink);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: background-color 0.35s ease;
}

.number:hover {
    background: var(--ink-3);
}

.number-value {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 4.4vw, 3.25rem);
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--ember);
    margin-bottom: 0.65rem;
}

.number-label {
    font-size: 0.875rem;
    color: var(--text-on-ink-soft);
}

/* ==========================================================================
   Process
   ========================================================================== */

.process {
    background: var(--paper);
}

.process-list {
    list-style: none;
    counter-reset: none;
}

.step {
    display: grid;
    grid-template-columns: 7rem 1fr;
    gap: 2.5rem;
    padding: 2.25rem 0;
    border-top: 1px solid var(--line);
    transition: background-color 0.3s ease;
}

.step:last-child {
    border-bottom: 1px solid var(--line);
}

.step-num {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 300;
    line-height: 1;
    color: var(--paper-3);
    letter-spacing: -0.03em;
    transition: color 0.3s ease;
}

.step:hover .step-num {
    color: var(--ember);
}

.step-body h3 {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.step-week {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ember-deep);
    margin-bottom: 0.9rem;
}

.step-body > p:last-child {
    color: var(--text-soft);
    max-width: 44rem;
}

/* ==========================================================================
   Capabilities
   ========================================================================== */

.stack {
    background: var(--paper-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.stack-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem 2rem;
}

.stack-group h3 {
    font-size: 1.0625rem;
    padding-bottom: 0.85rem;
    margin-bottom: 1.1rem;
    border-bottom: 1px solid var(--line-strong);
}

.stack-group ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    list-style: none;
}

.stack-group li {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-soft);
    padding: 0.35rem 0.75rem;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--r-sm);
    transition: border-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.stack-group li:hover {
    border-color: var(--ember);
    color: var(--ember-deep);
    transform: translateY(-2px);
}

/* ==========================================================================
   Engagements
   ========================================================================== */

.engagements {
    background: var(--paper);
}

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

.plan {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 2.5rem 2.25rem;
    background: var(--paper-2);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.plan:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.plan-featured {
    background: var(--ink);
    color: var(--text-on-ink);
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    padding-top: 3.25rem;
}

.plan-flag {
    position: absolute;
    top: 1.5rem;
    left: 2.25rem;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink);
    background: var(--ember);
    padding: 0.25rem 0.7rem;
    border-radius: 100px;
}

.plan-name {
    font-size: 1.625rem;
    margin-bottom: 1rem;
}

.plan-price {
    display: flex;
    flex-direction: column;
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--line);
}

.plan-featured .plan-price {
    border-bottom-color: var(--line-on-ink);
    color: var(--ember);
}

.plan-price span {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--text-mute);
}

.plan-featured .plan-price span {
    color: var(--text-on-ink-soft);
}

.plan-body {
    font-size: 0.9375rem;
    color: var(--text-soft);
    margin-bottom: 1.75rem;
}

.plan-featured .plan-body {
    color: var(--text-on-ink-soft);
}

.plan-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.plan-features li {
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.9375rem;
}

.plan-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.45em;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    border: 1.5px solid var(--ember);
}

.plan-featured .btn-primary {
    background: var(--paper);
    color: var(--ink);
}

.plan-featured .btn-primary:hover {
    background: var(--ember);
    color: var(--paper);
}

/* ==========================================================================
   Voices
   ========================================================================== */

.voices {
    background: var(--paper-2);
    border-top: 1px solid var(--line);
}

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

.quote {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2.25rem 2rem;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.quote:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.quote blockquote {
    font-family: var(--font-display);
    font-size: 1.1875rem;
    font-weight: 400;
    line-height: 1.45;
    letter-spacing: -0.01em;
    margin-bottom: 2rem;
}

.quote blockquote::before {
    content: '\201C';
    display: block;
    font-size: 3rem;
    line-height: 0.6;
    color: var(--ember);
    margin-bottom: 0.6rem;
}

.quote figcaption {
    display: flex;
    flex-direction: column;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
}

.q-name {
    font-size: 0.9375rem;
    font-weight: 600;
}

.q-role {
    font-size: 0.8125rem;
    color: var(--text-mute);
}

/* ==========================================================================
   Journal
   ========================================================================== */

.journal {
    background: var(--paper);
}

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

.post {
    display: flex;
    flex-direction: column;
    padding: 2rem;
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    background: var(--paper);
    transition: background-color 0.3s ease, transform 0.35s ease, box-shadow 0.35s ease;
}

.post:hover {
    background: var(--paper-2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
}

.post-meta {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-mute);
    margin-bottom: 1.25rem;
}

.post-title {
    font-size: 1.375rem;
    line-height: 1.25;
    margin-bottom: 0.85rem;
}

.post-excerpt {
    font-size: 0.9375rem;
    color: var(--text-soft);
    margin-bottom: 1.75rem;
    flex-grow: 1;
}

.post-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ember-deep);
    text-decoration: none;
    align-self: flex-start;
}

.post-link span {
    transition: transform 0.25s ease;
}

.post-link:hover span {
    transform: translateX(4px);
}

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq {
    background: var(--paper-2);
    border-top: 1px solid var(--line);
}

.faq-inner {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 4rem;
    align-items: start;
}

.faq .section-head {
    margin-bottom: 0;
    position: sticky;
    top: 7rem;
}

.acc-item {
    border-top: 1px solid var(--line-strong);
}

.acc-item:last-child {
    border-bottom: 1px solid var(--line-strong);
}

.acc-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    width: 100%;
    padding: 1.5rem 0;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--text);
    transition: color 0.25s ease;
}

.acc-trigger:hover {
    color: var(--ember-deep);
}

.acc-icon {
    position: relative;
    flex-shrink: 0;
    width: 22px;
    height: 22px;
}

.acc-icon::before,
.acc-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1.5px;
    background: var(--ember);
    transition: transform 0.3s ease;
}

.acc-icon::after {
    transform: rotate(90deg);
}

.acc-item.is-open .acc-icon::after {
    transform: rotate(0deg);
}

.acc-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.acc-item.is-open .acc-panel {
    max-height: 340px;
}

.acc-panel p {
    padding-bottom: 1.75rem;
    color: var(--text-soft);
    max-width: 38rem;
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact {
    background: var(--ink);
    color: var(--text-on-ink);
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4.5rem;
    align-items: start;
}

.contact-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1.5rem;
}

.contact-lede {
    font-size: 1.0625rem;
    color: var(--text-on-ink-soft);
    margin-bottom: 2.75rem;
}

.contact-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-details li {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line-on-ink);
    font-size: 0.9375rem;
}

.cd-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-on-ink-soft);
}

.contact-details a {
    color: var(--ember);
    text-decoration: none;
    transition: opacity 0.25s ease;
}

.contact-details a:hover {
    opacity: 0.75;
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    padding: 2.5rem;
    background: var(--ink-2);
    border: 1px solid var(--line-on-ink);
    border-radius: var(--r-lg);
}

.field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.field-wide,
.contact-form .btn,
.form-note {
    grid-column: 1 / -1;
}

.field label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-on-ink-soft);
}

.field input,
.field select,
.field textarea {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--text-on-ink);
    background: rgba(244, 239, 230, 0.04);
    border: 1px solid var(--line-on-ink);
    border-radius: var(--r-sm);
    padding: 0.8rem 0.9rem;
    width: 100%;
    transition: border-color 0.25s ease, background-color 0.25s ease;
}

.field textarea {
    resize: vertical;
    min-height: 7rem;
}

.field select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23b4aa9c' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    background-size: 12px;
    padding-right: 2.25rem;
}

.field select option {
    color: var(--ink);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--ember);
    background: rgba(244, 239, 230, 0.07);
}

.form-note {
    font-size: 0.875rem;
    min-height: 1.25rem;
}

.form-note.is-error {
    color: #f0a08a;
}

.form-note.is-ok {
    color: #9ec9a8;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background: var(--ink);
    color: var(--text-on-ink);
    padding: 4.5rem 0 2.5rem;
    border-top: 1px solid var(--line-on-ink);
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 4rem;
    padding-bottom: 3.5rem;
}

.footer-brand {
    max-width: 24rem;
}

.footer-tagline {
    font-family: var(--font-display);
    font-size: 1.375rem;
    line-height: 1.3;
    letter-spacing: -0.01em;
    margin: 1.5rem 0 1.25rem;
}

.footer-email {
    font-size: 0.9375rem;
    color: var(--ember);
    text-decoration: none;
    border-bottom: 1px solid rgba(216, 84, 42, 0.4);
    padding-bottom: 2px;
}

.footer-email:hover {
    border-bottom-color: var(--ember);
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.footer-col h3 {
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-on-ink-soft);
    margin-bottom: 0.35rem;
}

.footer-col a {
    font-size: 0.9375rem;
    color: var(--text-on-ink);
    text-decoration: none;
    opacity: 0.82;
    transition: opacity 0.25s ease, color 0.25s ease;
}

.footer-col a:hover {
    color: var(--ember);
    opacity: 1;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 2rem;
    border-top: 1px solid var(--line-on-ink);
    font-size: 0.8125rem;
    color: var(--text-on-ink-soft);
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes breathe {
    0%, 100% { box-shadow: 0 0 0 3px var(--ember-soft); }
    50%      { box-shadow: 0 0 0 7px rgba(216, 84, 42, 0.04); }
}

@keyframes drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(-4%, 4%) scale(1.06); }
}

@keyframes ping {
    0%   { box-shadow: 0 0 0 0 rgba(216, 84, 42, 0.5); }
    70%  { box-shadow: 0 0 0 26px rgba(216, 84, 42, 0); }
    100% { box-shadow: 0 0 0 0 rgba(216, 84, 42, 0); }
}

@keyframes bob {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-10px); }
}

@keyframes slide {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1080px) {
    :root {
        --section-y: 6rem;
    }

    .site-nav .nav-link {
        font-size: 0.8125rem;
    }

    .site-nav {
        gap: 1.25rem;
    }

    .service-grid,
    .stack-grid,
    .quote-grid,
    .post-grid,
    .number-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .plan-grid {
        grid-template-columns: 1fr;
        max-width: 34rem;
        margin: 0 auto;
    }

    .faq-inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .faq .section-head {
        position: static;
    }
}

@media (max-width: 900px) {
    .nav-toggle {
        display: flex;
    }

    .site-nav {
        position: fixed;
        inset: 0;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 1.5rem;
        padding: 6rem 2rem 2rem;
        background: var(--paper);
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        z-index: 190;
    }

    body.nav-open .site-nav {
        transform: none;
    }

    .site-nav .nav-link {
        font-family: var(--font-display);
        font-size: 1.75rem;
        color: var(--text);
    }

    .nav-cta {
        margin-top: 1rem;
        padding: 0.85rem 1.5rem;
        font-size: 1rem;
    }

    .nav-toggle {
        position: relative;
        z-index: 200;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }

    .hero-visual {
        max-width: 30rem;
        width: 100%;
        margin: 0 auto;
    }

    .engine-grid,
    .belief-strip {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .belief-strip {
        gap: 2rem;
    }

    .case {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .contact-inner,
    .footer-top {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 640px) {
    :root {
        --section-y: 4.5rem;
        --shell: 100%;
    }

    .shell {
        padding: 0 1.25rem;
    }

    .hero-proof {
        gap: 1.5rem 2rem;
    }

    .service-grid,
    .stack-grid,
    .quote-grid,
    .post-grid,
    .number-grid {
        grid-template-columns: 1fr;
    }

    .number-grid {
        border-radius: var(--r-sm);
    }

    .engine-card,
    .plan,
    .contact-form {
        padding: 1.75rem 1.5rem;
    }

    .plan-featured {
        padding-top: 3rem;
    }

    .plan-flag {
        left: 1.5rem;
    }

    .contact-form {
        grid-template-columns: 1fr;
    }

    .step {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .step-num {
        font-size: 1.75rem;
    }

    .case-results {
        gap: 1.5rem 2rem;
    }

    .footer-nav {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem 1rem;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .acc-trigger {
        font-size: 1.0625rem;
    }

    .acc-item.is-open .acc-panel {
        max-height: 460px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001s !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}