/* ==========================================================================
   Kharkevich Engineering Lab — Whiteboard Component & Sketch Styles
   ========================================================================== */

/* Base Section Structure */
.sketch-section {
  padding: 5.5rem 0;
  position: relative;
}

.sketch-section-alt {
  background-color: var(--canvas-alt);
  background-image: radial-gradient(#c9d5e0 1.2px, transparent 1.2px);
  background-size: 24px 24px;
  border-top: 2px dashed #e2e8f0;
  border-bottom: 2px dashed #e2e8f0;
}

/* Titles & Headers */
.sketch-header-center {
  max-width: 820px;
  margin: 0 auto 3.5rem auto;
  text-align: center;
  position: relative;
}

.handwritten-title {
  font-family: var(--font-sketch);
  font-size: 3rem;
  font-weight: 700;
  color: var(--marker-black);
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.sketch-header-subtitle {
  font-family: var(--font-body);
  font-size: 1.125rem;
  color: var(--marker-slate);
  margin-top: 0.75rem;
}

.sketch-title-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.75rem 2.25rem;
  border: 2.5px solid var(--marker-black);
  border-radius: var(--radius-sketch-box);
  background: #ffffff;
  box-shadow: 3px 4px 0px rgba(0, 0, 0, 0.08);
  position: relative;
}

.sketch-sparkle {
  font-size: 1.5rem;
}

.sketch-sub-annotation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sketch);
  font-size: 1.4rem;
  color: var(--marker-charcoal);
  margin-top: 0.75rem;
}

/* Generic Sketch Primitives */
.sketch-box-card {
  background: #ffffff;
  border: 2.5px solid var(--marker-black);
  border-radius: var(--radius-sketch-box);
  box-shadow: 3px 4px 0px rgba(0, 0, 0, 0.08);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.sketch-box-card:hover {
  transform: translate3d(-1px, -2px, 0);
  box-shadow: 5px 7px 0px rgba(0, 0, 0, 0.12);
}

.sketch-dashed-box {
  background: #ffffff;
  border: 2px dashed var(--marker-black);
  border-radius: var(--radius-sketch-box);
  padding: 0.9rem;
}

.sketch-dashed-pill {
  background: #ffffff;
  border: 2px dashed var(--marker-black);
  border-radius: var(--radius-sketch-pill);
  padding: 0.5rem 1rem;
}

.sketch-bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--marker-charcoal);
}

.sketch-bullet-list li {
  position: relative;
  padding-left: 1.25rem;
}

.sketch-bullet-list li::before {
  content: "•";
  position: absolute;
  left: 0.1rem;
  bottom: 0.1rem;
  color: var(--marker-black);
  font-weight: bold;
}

.sketch-bottom-trail {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-family: var(--font-sketch);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--marker-black);
  margin-top: 3.5rem;
}

.trail-line {
  color: var(--marker-gray);
  letter-spacing: 2px;
}

.marker-underline {
  text-decoration: underline;
  text-decoration-style: solid;
  text-decoration-thickness: 2.5px;
  text-underline-offset: 4px;
  text-decoration-color: var(--marker-black);
}

/* ==========================================================================
   SECTION 1: Hero Section Styles
   ========================================================================== */
.hero-sketch-section {
  content-visibility: visible;
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-sketch-container {
  padding-bottom: var(--header-height);
  position: relative;
}

.handwritten-hero-title {
  font-family: var(--font-sketch);
  font-size: 5rem;
  font-weight: 700;
  color: var(--marker-black);
  line-height: 1.05;
  margin-bottom: 0.5rem;
}

.hand-drawn-underline-wrap {
  width: 360px;
  margin: 0.25rem auto 4rem auto;
}

.wavy-underline-svg {
  width: 100%;
  height: auto;
}

.hero-hand-subtitle {
  font-family: var(--font-sketch);
  font-size: 2.15rem;
  color: var(--marker-charcoal);
  max-width: 740px;
  margin: 0 auto 2.75rem auto;
  line-height: 1.35;
}

.sketch-trust-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.sketch-badge-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.sketch-icon-wrap {
  width: 28px;
  height: 28px;
}

.sketch-icon {
  width: 100%;
  height: 100%;
}

.sketch-badge-text {
  font-family: var(--font-sketch);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--marker-black);
}

.sketch-row-dash {
  font-size: 1.5rem;
  color: var(--marker-gray);
  font-weight: bold;
}

.hero-sketch-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

/* ==========================================================================
   SECTION 2: The SMB AI Challenge
   ========================================================================== */
.sketch-challenge-triad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.challenge-triad-card {
  padding: 1.75rem 1.5rem;
}

.card-sketch-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.sketch-header-icon {
  width: 36px;
  height: 36px;
}

.sketch-card-title {
  font-family: var(--font-sketch);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--marker-black);
}

.sketch-sub-pains-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}

.sub-pain-box {
  text-align: center;
}

.box-inner-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  margin-bottom: 0.6rem;
}

.box-inner-icon .sketch-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.sub-pain-box h4 {
  font-family: var(--font-sketch);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--marker-black);
  margin-bottom: 0.5rem;
}

.micro-bullet-list {
  list-style: none;
  font-size: 0.9rem;
  color: var(--marker-slate);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  text-align: left;
  padding-left: 0.5rem;
  padding-bottom: 0.1rem;
}

.micro-bullet-list li {
  position: relative;
  padding-left: 1.25rem;
}

.micro-bullet-list li::before {
  content: "•";
  position: absolute;
  left: 0.1rem;
  bottom: 0.1rem;
  color: var(--marker-black);
  font-weight: bold;
}

/* ==========================================================================
   SECTION 3: Why Private AI Now (Composite Layout)
   ========================================================================== */
.why-now-composite-layout {
  display: grid;
  grid-template-columns: 260px 1fr 260px;
  gap: 2rem;
  align-items: start;
}

.stat-pill {
  text-align: center;
  padding: 1.25rem 1rem;
}

.stat-pill-num {
  font-family: var(--font-sketch);
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1;
  color: var(--marker-black);
}

.stat-pill-lbl {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--marker-charcoal);
  margin-top: 0.35rem;
}

.stat-source-text {
  font-size: 0.72rem;
  color: var(--marker-gray);
  margin-top: 0.5rem;
  line-height: 1.3;
}

.data-types-box {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--marker-charcoal);
}

.types-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.why-pillars-center-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.pillar-box {
  padding: 1.75rem 1.5rem;
}

.pillar-box-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.pillar-emoji {
  font-size: 1.5rem;
}

.pillar-box-head h3 {
  font-family: var(--font-sketch);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--marker-black);
}

.side-badge, .roi-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--marker-charcoal);
}

/* ==========================================================================
   SECTION 4: Practical Use Cases
   ========================================================================== */
.usecases-radial-wrapper {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.usecases-center-hub {
  width: 220px;
  margin: 0 auto 2.5rem auto;
  text-align: center;
  padding: 1.5rem;
  background: #fdfdfd;
}

.hub-lock-icon {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

.hub-title {
  font-family: var(--font-sketch);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--marker-black);
  line-height: 1.15;
}

.radial-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.uc-card {
  padding: 1.5rem;
}

.uc-card-header {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.uc-num {
  font-family: var(--font-sketch);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--marker-slate);
}

.uc-icon {
  font-size: 1.4rem;
}

.uc-card-header h4 {
  font-family: var(--font-sketch);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--marker-black);
  line-height: 1.2;
}

.orbit-tag {
  position: absolute;
  font-family: var(--font-sketch);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--marker-black);
  background: #ffffff;
  z-index: 2;
}

.tag-left-top { top: -20px; left: 10px; }
.tag-left-bottom { bottom: 10px; left: 0px; }
.tag-right-middle { top: 40px; right: 10px; }

/* ==========================================================================
   SECTION 5: Private AI Stack Architecture
   ========================================================================== */
.sketch-architecture-wrapper {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1000px;
  margin: 0 auto;
}

.arch-side-card {
  flex: 1;
  padding: 2rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.arch-box-icon {
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
}

.arch-box-title {
  font-family: var(--font-sketch);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--marker-black);
}

.arch-box-divider {
  width: 60%;
  height: 2px;
  background: var(--marker-black);
  margin: 1rem auto;
}

.sketch-two-way-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.5rem;
}

.arrow-symbol {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--marker-black);
}

.arch-main-stack-card {
  flex: 1.8;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: #ffffff;
}

.stack-sublayer-box {
  border: 2px solid var(--marker-black);
  border-radius: var(--radius-sketch-box);
  padding: 1rem 1.25rem;
  background: #ffffff;
}

.sublayer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.sublayer-header h4 {
  font-family: var(--font-sketch);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--marker-black);
}

.sublayer-bullet-row {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--marker-charcoal);
  font-weight: 500;
}

/* ==========================================================================
   SECTION 6: Deployment Options (Sparks Flow)
   ========================================================================== */
.sketch-sparks-flow-grid {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 1.25rem;
  max-width: 1050px;
  margin: 0 auto;
}

.spark-flow-column {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.spark-top-card {
  width: 100%;
  padding: 1.75rem 1.25rem;
  text-align: center;
  position: relative;
}

.spark-badge-num {
  font-family: var(--font-sketch);
  font-size: 1.5rem;
  font-weight: 700;
  position: absolute;
  top: 1rem;
  left: 1.25rem;
}

.spark-name {
  font-family: var(--font-sketch);
  font-size: 2rem;
  font-weight: 700;
  color: var(--marker-black);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.spark-intent {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--marker-slate);
  margin-bottom: 1rem;
}

.server-doodle-box {
  width: 60px;
  height: 70px;
  margin: 0 auto;
}

.dual-servers { width: 90px; }
.cluster-servers { width: 90px; }

.server-svg {
  width: 100%;
  height: 100%;
}

.spark-flow-connector-down {
  width: 2px;
  height: 20px;
  background: var(--marker-black);
  margin: 0.5rem 0;
}

.spark-bottom-features {
  width: 100%;
  padding: 1.25rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.spark-user-doodle {
  text-align: center;
  font-size: 1.75rem;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px dashed #e2e8f0;
}

.spark-step-arrow {
  display: flex;
  align-items: center;
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--marker-black);
  padding: 0 0.5rem;
}

/* ==========================================================================
   SECTION 7: Business Outcomes
   ========================================================================== */
.sketch-outcomes-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 860px;
  margin: 0 auto;
}

.sketch-outcome-capsule {
  border: 2.5px solid var(--marker-black);
  border-radius: var(--radius-sketch-box);
  background: #ffffff;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  box-shadow: 2px 3px 0px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.sketch-outcome-capsule:hover {
  transform: translate3d(4px, 0, 0);
  box-shadow: 4px 5px 0px rgba(0, 0, 0, 0.1);
}

.outcome-capsule-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.outcome-capsule-icon svg {
  width: 100%;
  height: 100%;
}

.outcome-capsule-arrow {
  font-size: 1.75rem;
  font-weight: bold;
  color: var(--marker-black);
}

.outcome-capsule-text h3 {
  font-family: var(--font-sketch);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--marker-black);
  line-height: 1.2;
}

.leaf-line-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.divider-line {
  width: 120px;
  height: 2px;
  background: var(--marker-black);
}

.divider-leaf {
  font-size: 1.75rem;
}

/* ==========================================================================
   SECTION 8: CTA & Contact Form
   ========================================================================== */
.cta-sketch-section {
  padding-bottom: 6rem;
}

.cta-sketch-card {
  max-width: 820px;
  margin: 0 auto;
  padding: 4rem 3rem;
  background: #ffffff;
}

.cta-maple-icon {
  font-size: 2.75rem;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.cta-subtitle {
  font-family: var(--font-body);
  font-size: 1.15rem;
  color: var(--marker-slate);
  max-width: 600px;
  margin: 0.75rem auto 2.5rem auto;
}

.sketch-contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 700px;
  margin: 0 auto;
}

.form-sketch-inputs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.sketch-input {
  width: 100%;
  background: #ffffff;
  border: 2px solid var(--marker-black);
  border-radius: var(--radius-sketch-box);
  padding: 0.85rem 1.15rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--marker-black);
}

.sketch-input:focus {
  outline: none;
  border-color: var(--marker-blue);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
}

.sketch-textarea {
  resize: vertical;
  min-height: 6rem;
}

/* Honeypot field: visually removed, still present in the DOM for bots */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  min-height: 1.25em;
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--marker-green, #1a7f37);
  text-align: center;
}

.form-status.is-error {
  color: var(--marker-red, #b00020);
}

/* After a successful send the form collapses to just the confirmation */
.sketch-contact-form.is-sent .form-sketch-inputs,
.sketch-contact-form.is-sent .sketch-textarea,
.sketch-contact-form.is-sent .btn-cta-submit {
  display: none;
}

.sketch-contact-form.is-sent .form-status {
  font-family: var(--font-sketch);
  font-size: 1.35rem;
}

.btn-cta-submit {
  align-self: center;
  font-size: 1.35rem;
  padding: 1rem 2.5rem;
}

.direct-contact-note {
  margin-top: 2rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--marker-slate);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.handwritten-email-link {
  font-family: var(--font-sketch);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--marker-blue);
  text-decoration: underline;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
  .sketch-challenge-triad { grid-template-columns: 1fr; }
  .sketch-sub-pains-row { grid-template-columns: repeat(2, 1fr); }
  .why-now-composite-layout { grid-template-columns: 1fr; }
  .radial-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .sketch-architecture-wrapper { flex-direction: column; }
  .sketch-two-way-arrow { transform: rotate(90deg); margin: 0.5rem 0; }
  .sketch-sparks-flow-grid { flex-direction: column; }
  .spark-step-arrow { transform: rotate(90deg); margin: 0.75rem auto; }
  .form-sketch-inputs { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .handwritten-hero-title { font-size: 3.5rem; }
  .hero-hand-subtitle { font-size: 1.35rem; }
  .handwritten-title { font-size: 2.25rem; }
  .sketch-sub-pains-row { grid-template-columns: 1fr; }
  .why-pillars-center-grid { grid-template-columns: 1fr; }
  .radial-cards-grid { grid-template-columns: 1fr; }
  .orbit-tag { display: none; }
  .sketch-outcome-capsule { flex-direction: column; text-align: center; gap: 0.75rem; }
  .outcome-capsule-arrow { transform: rotate(90deg); }
  .cta-sketch-card { padding: 2.5rem 1.5rem; }
}