/* ============================================================
   BrandSkills.ai — Landing Page Styles
   Light editorial aesthetic. Restrained palette. Generous space.
   ============================================================ */

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

:root {
  /* Palette — intentionally restrained */
  --ink:       #1a1a1a;
  --ink-soft:  #4a4a4a;
  --ink-muted: #8a8a8a;
  --paper:     #fafaf8;
  --paper-warm:#f4f2ed;
  --dark:      #111111;
  --dark-soft: #1c1c1c;
  --accent:    #c8a97e;
  --accent-dim:#a68b5b;
  --green-soft:#5cb85c;
  --red-soft:  #c44;

  /* Typography */
  --font-serif:  Georgia, "Times New Roman", serif;
  --font-sans:   -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono:   "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;

  /* Sizing */
  --section-pad: clamp(3rem, 8vh, 6rem) clamp(1.5rem, 5vw, 4rem);
  --max-width:   72rem;
  --max-narrow:  48rem;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

/* --- Section / Slide base --- */
.slide {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--section-pad);
  position: relative;
}

.slide--dark {
  background: var(--dark);
  color: var(--paper);
}

.slide--warm {
  background: var(--paper-warm);
}

.slide__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.slide__inner--narrow {
  max-width: var(--max-narrow);
}

/* --- Typography --- */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  margin-bottom: 0.75rem;
}

.subtext {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: var(--ink-muted);
  margin-top: 1rem;
}

.slide--dark .subtext {
  color: var(--ink-muted);
}

p {
  max-width: 40em;
}

.label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 1rem;
}

.slide--dark .label {
  color: var(--accent);
}

/* --- Scroll-triggered reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }
.reveal-delay-4 { transition-delay: 0.6s; }

/* ============================================================
   SLIDE 1 — Hero
   ============================================================ */
.hero {
  text-align: center;
  justify-content: center;
  align-items: center;
}

.hero h1 {
  max-width: 16ch;
  margin: 0 auto;
}

.hero .subtext {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  color: var(--accent);
  margin-top: 1.5rem;
}

.hero__wordmark {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 3rem;
}

.slide--dark .hero__wordmark {
  color: var(--ink-muted);
}

/* ============================================================
   SLIDE 2 — The output problem (side-by-side)
   ============================================================ */
.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-top: 2.5rem;
}

@media (max-width: 700px) {
  .comparison {
    grid-template-columns: 1fr;
  }
}

.comparison__card {
  border-radius: 0.5rem;
  padding: 2rem;
  position: relative;
}

.comparison__card--generic {
  background: #f0f0f0;
  border: 1px solid #ddd;
}

.comparison__card--branded {
  background: var(--dark);
  color: var(--paper);
  border: 1px solid #333;
}

.comparison__card h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.comparison__card--generic h3 {
  color: var(--red-soft);
}

.comparison__card--branded h3 {
  color: var(--green-soft);
}

.comparison__card blockquote {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.8;
  font-style: italic;
}

.comparison__prompt {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-muted);
  background: rgba(0,0,0,0.04);
  padding: 0.75rem 1rem;
  border-radius: 0.25rem;
  margin-top: 2rem;
  text-align: center;
}

.slide--dark .comparison__prompt {
  background: rgba(255,255,255,0.05);
  color: var(--ink-muted);
}

/* ============================================================
   SLIDE 3 — Context diagram
   ============================================================ */
.diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.diagram__box {
  border: 1px solid #ddd;
  border-radius: 0.5rem;
  padding: 1.5rem 2rem;
  text-align: center;
  min-width: 10rem;
  background: var(--paper);
}

.slide--dark .diagram__box {
  background: var(--dark-soft);
  border-color: #333;
}

.diagram__box--highlight {
  border-color: var(--accent);
  background: rgba(200, 169, 126, 0.08);
}

.slide--dark .diagram__box--highlight {
  background: rgba(200, 169, 126, 0.1);
}

.diagram__box h3 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.5rem;
}

.diagram__box p {
  font-family: var(--font-serif);
  font-size: 1.1rem;
}

.diagram__arrow {
  font-size: 1.5rem;
  color: var(--ink-muted);
}

.diagram__plus {
  font-size: 2rem;
  color: var(--accent);
  font-weight: 300;
}

.diagram__row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  width: 100%;
  justify-content: center;
  flex-wrap: wrap;
}

.diagram__result {
  margin-top: 1rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--ink-muted);
  text-align: center;
}

/* ============================================================
   SLIDE 4 — BrandSkills bridges the gap
   ============================================================ */
.product-desc {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  line-height: 1.8;
  max-width: 36em;
  margin-top: 1.5rem;
}

.tool-badges {
  display: flex;
  gap: 0.75rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.tool-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 0.5rem 1rem;
  border: 1px solid #333;
  border-radius: 2rem;
  color: var(--ink-muted);
}

.slide--dark .tool-badge {
  border-color: #444;
}

/* ============================================================
   SLIDE 5 — How it works (3 steps)
   ============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-top: 3rem;
}

@media (max-width: 700px) {
  .steps {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.step {
  position: relative;
}

.step__number {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  color: var(--accent);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 1rem;
}

.step h3 {
  font-family: var(--font-serif);
}

.step p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-top: 0.5rem;
}

.step__code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: var(--dark);
  color: var(--paper);
  padding: 0.75rem 1rem;
  border-radius: 0.25rem;
  margin-top: 1rem;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.6;
}

/* ============================================================
   SLIDE 6 — What your AI learns (4 tools)
   ============================================================ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 2.5rem;
}

@media (max-width: 700px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }
}

.tool-card {
  padding: 2rem;
  border: 1px solid #e5e5e5;
  border-radius: 0.5rem;
  background: var(--paper);
}

.tool-card__name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--accent-dim);
  margin-bottom: 0.75rem;
}

.tool-card h3 {
  font-family: var(--font-serif);
}

.tool-card p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-top: 0.5rem;
}

.tool-card__example {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--dark);
  color: var(--paper);
  padding: 0.75rem 1rem;
  border-radius: 0.25rem;
  margin-top: 1rem;
  white-space: pre-wrap;
  overflow-x: auto;
}

/* ============================================================
   SLIDE 7 — Live transformation demo
   ============================================================ */
.demo {
  margin-top: 2.5rem;
  max-width: 40rem;
}

.demo__input-area {
  position: relative;
}

.demo__input {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  width: 100%;
  padding: 1.25rem;
  border: 1px solid #ddd;
  border-radius: 0.5rem;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  min-height: 5rem;
}

.demo__arrow {
  text-align: center;
  padding: 1.5rem 0;
  font-size: 1.5rem;
  color: var(--accent);
}

.demo__output {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.8;
  padding: 1.5rem;
  border: 1px solid var(--accent);
  border-radius: 0.5rem;
  background: rgba(200, 169, 126, 0.06);
  min-height: 5rem;
  position: relative;
}

.demo__output .cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.demo__output-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-dim);
  margin-bottom: 0.75rem;
}

.demo__input-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.75rem;
}

.demo__examples {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.demo__example-btn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid #ddd;
  border-radius: 2rem;
  background: none;
  color: var(--ink-muted);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.demo__example-btn:hover {
  border-color: var(--accent);
  color: var(--ink);
}

.demo__example-btn.active {
  border-color: var(--accent);
  color: var(--accent-dim);
}

/* ============================================================
   SLIDE 8 — Case study
   ============================================================ */
.case-study {
  margin-top: 2.5rem;
}

.case-study__brand {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.case-study__desc {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  max-width: 36em;
}

.case-study__stats {
  display: flex;
  gap: 3rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.case-study__stat {
  text-align: center;
}

.case-study__stat-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--accent);
  line-height: 1;
}

.case-study__stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: 0.5rem;
}

/* ============================================================
   SLIDE 9 — Your brand, everywhere
   ============================================================ */
.platforms {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  flex-wrap: wrap;
  justify-content: center;
}

.platform {
  text-align: center;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.platform:hover {
  opacity: 1;
}

.platform__icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 5rem;
  height: 5rem;
  border: 1px solid #333;
  border-radius: 0.75rem;
  margin: 0 auto 0.75rem;
}

.slide--dark .platform__icon {
  border-color: #444;
}

.platform__name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
}

.platforms__tagline {
  text-align: center;
  margin-top: 3rem;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--ink-muted);
}

/* ============================================================
   SLIDE 10 — CTA / Waitlist
   ============================================================ */
.cta-form {
  margin-top: 2.5rem;
  max-width: 28rem;
}

.cta-form__row {
  display: flex;
  gap: 0.75rem;
}

@media (max-width: 500px) {
  .cta-form__row {
    flex-direction: column;
  }
}

.cta-form__input {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 0.9rem 1.25rem;
  border: 1px solid #444;
  border-radius: 0.5rem;
  background: rgba(255,255,255,0.05);
  color: var(--paper);
}

.cta-form__input::placeholder {
  color: var(--ink-muted);
}

.cta-form__input:focus {
  outline: none;
  border-color: var(--accent);
}

.cta-form__btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  padding: 0.9rem 1.75rem;
  background: var(--accent);
  color: var(--dark);
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

.cta-form__btn:hover {
  background: var(--accent-dim);
}

.cta-form__note {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-top: 1rem;
}

.cta-form__success {
  display: none;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--accent);
  font-size: 1.1rem;
  margin-top: 1rem;
}

.cta-form__success.visible {
  display: block;
}

/* --- Nav dots (optional, subtle) --- */
.nav-dots {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 100;
}

@media (max-width: 900px) {
  .nav-dots { display: none; }
}

.nav-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink-muted);
  opacity: 0.25;
  cursor: pointer;
  transition: opacity 0.3s, transform 0.3s;
  border: none;
}

.nav-dot:hover {
  opacity: 0.5;
}

.nav-dot.active {
  opacity: 1;
  transform: scale(1.5);
  background: var(--accent);
}

.nav-dots--on-dark .nav-dot:not(.active) {
  background: rgba(255,255,255,0.3);
}

/* --- Utility --- */
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.text-center { text-align: center; }
.text-muted { color: var(--ink-muted); }
.text-accent { color: var(--accent); }

/* Smooth transitions for dark/light switching */
.slide { transition: background-color 0.3s ease; }

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .reveal-delay-1, .reveal-delay-2, .reveal-delay-3, .reveal-delay-4 { transition-delay: 0s; }
  .demo__output .cursor { animation: none; }
  .slide { transition: none; }
  .platform { transition: none; }
  .nav-dot { transition: none; }
  .demo__example-btn { transition: none; }
}