/* Cloud System Services — shared stylesheet */

:root {
  --canvas: #0D0A12;
  --canvas-raised: #14101C;
  --accent: #7B2FBE;
  --accent-deep: #4A1080;
  --text: #EDEAF2;
  --text-muted: #9A93A8;
  --border: #2A2333;
  --focus: #B98BE0;

  --font-display: "Syne", sans-serif;
  --font-body: "DM Sans", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --content-max: 1100px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
}

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

html {
  background: var(--canvas);
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 var(--space-2);
}

h1 {
  font-size: clamp(2rem, 4.5vw + 1rem, 3.4rem);
}

h2 {
  font-size: clamp(1.5rem, 2vw + 1rem, 2.1rem);
}

p {
  margin: 0 0 var(--space-2);
  color: var(--text);
}

.muted {
  color: var(--text-muted);
}

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* Focus states — visible everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible,
label:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Nav */
.site-nav {
  border-bottom: 1px solid var(--border);
}

.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  min-height: 4.5rem;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: 0.01em;
  color: var(--text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-links a.text-link {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-links a.text-link:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: 6px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.btn-primary {
  background: var(--accent);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: #8C3FD1;
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-block {
  width: 100%;
}

.text-link-arrow {
  display: inline-block;
  margin-top: var(--space-2);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.text-link-arrow:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

/* Hero */
.hero {
  padding: var(--space-6) 0 var(--space-5);
}

.hero .container {
  max-width: 780px;
}

.hero h1 {
  margin-bottom: var(--space-3);
}

.hero .subline {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 620px;
  margin-bottom: var(--space-4);
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
}

/* Section rhythm */
section {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--border);
}

section .container > .section-intro {
  max-width: 680px;
}

/* Evidence / terminal readout — the signature element */
.evidence {
  background: var(--canvas-raised);
}

.evidence-intro {
  font-size: 1.1rem;
  color: var(--text);
  max-width: 680px;
  margin-bottom: var(--space-4);
}

.readouts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: var(--space-4);
}

.readout {
  background: var(--canvas);
  padding: var(--space-3) var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.readout-value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 2.5vw + 0.5rem, 2.1rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.readout-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.evidence-close {
  max-width: 680px;
  color: var(--text-muted);
}

/* Two problems */
.problems-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.problem-block h3 {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.frame-line {
  font-family: var(--font-display);
  font-size: 1.3rem;
  max-width: 680px;
}

/* How it works */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  counter-reset: step;
}

.step {
  border-top: 1px solid var(--border);
  padding-top: var(--space-2);
}

.step-number {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.5rem;
}

/* Guarantee */
.guarantee {
  background: var(--canvas-raised);
}

.guarantee-text {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2vw + 1rem, 2rem);
  max-width: 780px;
  margin: 0;
}

/* Final CTA */
.final-cta {
  text-align: center;
}

.final-cta .container {
  max-width: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.final-cta p {
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-4) 0;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.site-footer a {
  text-decoration: none;
  color: var(--text-muted);
  border-bottom: 1px solid transparent;
}

.site-footer a:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

.site-footer .dot {
  color: var(--border);
}

/* Fade-up on scroll */
.fade-up {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== Calculator page ===== */
.calc-header {
  padding: var(--space-5) 0 var(--space-4);
}

.calc-header .container {
  max-width: 700px;
}

.calc-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.calc-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field label {
  font-size: 0.92rem;
  font-weight: 700;
}

.field .field-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 400;
}

.field-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.field-controls input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.field-controls input[type="number"] {
  width: 6.5rem;
  background: var(--canvas-raised);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 0.5rem 0.6rem;
  border-radius: 6px;
}

.results-panel {
  background: var(--canvas-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-3);
  position: sticky;
  top: var(--space-3);
}

.results-panel h2 {
  font-size: 1.1rem;
  margin-bottom: var(--space-3);
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.7rem 0;
  border-top: 1px solid var(--border);
  gap: var(--space-2);
}

.result-row:first-of-type {
  border-top: none;
}

.result-label {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.result-value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--accent);
  white-space: nowrap;
}

.result-value.big {
  font-size: 1.4rem;
}

.formula-note {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  line-height: 1.6;
}

.capture-gate {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

.capture-gate h2 {
  font-size: 1.1rem;
}

.capture-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.capture-form input[type="text"],
.capture-form input[type="email"],
.capture-form input[type="tel"] {
  background: var(--canvas);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.7rem 0.8rem;
  border-radius: 6px;
  width: 100%;
}

.capture-form input::placeholder {
  color: var(--text-muted);
}

/* Honeypot — visually hidden, still in tab order removed */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  font-size: 0.9rem;
  margin-top: var(--space-1);
}

.form-status[data-state="success"] {
  color: var(--accent);
}

.form-status[data-state="error"] {
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 860px) {
  .calc-layout {
    grid-template-columns: 1fr;
  }

  .results-panel {
    position: static;
  }

  .readouts {
    grid-template-columns: repeat(2, 1fr);
  }

  .problems-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

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

  section {
    padding: var(--space-4) 0;
  }

  .hero {
    padding: var(--space-5) 0 var(--space-4);
  }

  .site-nav .container {
    flex-wrap: wrap;
    row-gap: var(--space-1);
  }
}