/* ── Design Tokens ─────────────────────────────────── */
:root {
  --color-primary: #1a1a2e;
  --color-accent: #f0a500;
  --color-accent-dark: #c98800;
  --color-bg: #fafaf8;
  --color-surface: #ffffff;
  --color-text: #2d2d2d;
  --color-text-muted: #6b6b6b;
  --color-border: #e8e4dc;

  --font-heading: 'Oswald', 'Arial Narrow', Arial, sans-serif;
  --font-body: 'Lato', 'Helvetica Neue', Arial, sans-serif;

  --size-xs: 0.75rem;
  --size-sm: 0.875rem;
  --size-base: 1rem;
  --size-lg: 1.125rem;
  --size-xl: 1.5rem;
  --size-2xl: 2rem;
  --size-3xl: 3rem;
  --size-4xl: 4rem;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.08);
  --shadow-md: 0 8px 24px rgba(26, 26, 46, 0.14);
  --shadow-hover: 0 16px 40px rgba(26, 26, 46, 0.2);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --max-width: 1200px;
  --nav-height: 72px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

/* ── Utilities ───────────────────────────────────────── */
.container {
  width: min(var(--max-width), 100% - 2 * var(--space-md));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Reveal animation trigger ─────────────────────────── */
/* Default state for scroll-revealed elements; JS adds .is-visible */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ── Navigation ──────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100; /* above hero content, below mobile overlay */
  background: transparent;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

/* Sticky background applies once JS adds .nav--scrolled */
.nav--scrolled {
  background: var(--color-primary);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
}

.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  font-family: var(--font-heading);
  font-size: var(--size-xl);
  font-weight: 600;
  color: var(--color-surface);
  letter-spacing: 0.02em;
  line-height: 1.1;
  text-transform: uppercase;
}

.nav__brand span {
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav__link {
  font-family: var(--font-heading);
  font-size: var(--size-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Hamburger — shown on mobile only */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.nav__toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-surface);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile nav open state — JS adds .nav--open */
.nav--open .nav__toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav--open .nav__toggle-bar:nth-child(2) { opacity: 0; }
.nav--open .nav__toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ────────────────────────────────────────────── */
.hero {
  position: relative; /* stacking context for ::before overlay */
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--color-primary);
  overflow: hidden; /* hides decorative gradient bleed */
}

/* Geometric warm overlay — replaces the prospect's hero photo */
.hero::before {
  content: '';
  position: absolute; /* positioned within .hero stacking context */
  inset: 0;
  background:
    linear-gradient(135deg, rgba(240, 165, 0, 0.15) 0%, transparent 60%),
    linear-gradient(225deg, rgba(240, 165, 0, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

/* Decorative paint-chip accent bar */
.hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--color-bg);
  clip-path: polygon(0 60%, 100% 0%, 100% 100%, 0% 100%);
}

.hero__content {
  position: relative; /* above ::before overlay */
  z-index: 1;
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-2xl);
}

.hero__eyebrow {
  font-family: var(--font-heading);
  font-size: var(--size-sm);
  font-weight: 500;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: var(--space-sm);
  animation: fadeSlideUp 0.6s ease both; /* hero entrance */
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(var(--size-3xl), 8vw, var(--size-4xl));
  font-weight: 700;
  color: var(--color-surface);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-md);
  animation: fadeSlideUp 0.6s 0.1s ease both;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__sub {
  font-size: var(--size-lg);
  color: rgba(255, 255, 255, 0.75);
  max-width: 52ch;
  margin-bottom: var(--space-lg);
  animation: fadeSlideUp 0.6s 0.2s ease both;
}

.hero__actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  animation: fadeSlideUp 0.6s 0.3s ease both;
}

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  font-family: var(--font-heading);
  font-size: var(--size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  border: 2px solid transparent;
}

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

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

.btn--outline {
  background: transparent;
  color: var(--color-surface);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

/* ── Section base ────────────────────────────────────── */
.section {
  padding-block: var(--space-2xl);
}

.section--alt {
  background: var(--color-surface);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section__eyebrow {
  font-family: var(--font-heading);
  font-size: var(--size-sm);
  font-weight: 500;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: var(--space-xs);
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(var(--size-2xl), 5vw, var(--size-3xl));
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-primary);
  line-height: 1.1;
}

.section__body {
  font-size: var(--size-lg);
  color: var(--color-text-muted);
  max-width: 58ch;
  margin-inline: auto;
  margin-top: var(--space-sm);
}

/* ── Cards ───────────────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--size-xl);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.card__body {
  color: var(--color-text-muted);
  font-size: var(--size-base);
  line-height: 1.65;
}

/* ── Feature list (why us) ───────────────────────────── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
}

.feature {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.feature__check {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 700;
  margin-top: 2px;
}

.feature__text {
  font-size: var(--size-base);
  color: var(--color-text);
}

/* ── CTA band ────────────────────────────────────────── */
.cta-band {
  background: var(--color-primary);
  padding-block: var(--space-xl);
  text-align: center;
}

.cta-band__title {
  font-family: var(--font-heading);
  font-size: clamp(var(--size-2xl), 4vw, var(--size-3xl));
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-surface);
  margin-bottom: var(--space-sm);
}

.cta-band__sub {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--size-lg);
  margin-bottom: var(--space-lg);
}

/* ── Contact ─────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-info__item {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.contact-info__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.contact-info__label {
  font-family: var(--font-heading);
  font-size: var(--size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 2px;
}

.contact-info__value {
  font-size: var(--size-base);
  color: var(--color-text);
}

.contact-action {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}

.contact-action__title {
  font-family: var(--font-heading);
  font-size: var(--size-2xl);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.contact-action__body {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

/* ── Page hero (inner pages) ─────────────────────────── */
.page-hero {
  background: var(--color-primary);
  padding-top: calc(var(--nav-height) + var(--space-lg));
  padding-bottom: var(--space-xl);
}

.page-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(var(--size-2xl), 6vw, var(--size-3xl));
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-surface);
}

.page-hero__sub {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--size-lg);
  margin-top: var(--space-xs);
}

/* ── Service list (palvelut page) ────────────────────── */
.service-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.service-item {
  padding: var(--space-md);
  border-left: 4px solid var(--color-accent);
  background: var(--color-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base);
}

.service-item:hover {
  transform: translateX(4px);
}

.service-item__title {
  font-family: var(--font-heading);
  font-size: var(--size-xl);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.service-item__body {
  color: var(--color-text-muted);
  font-size: var(--size-base);
}

/* ── Footer ──────────────────────────────────────────── */
.footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding-block: var(--space-xl);
  font-size: var(--size-sm);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}

.footer__brand {
  font-family: var(--font-heading);
  font-size: var(--size-xl);
  font-weight: 600;
  color: var(--color-surface);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer__brand span {
  color: var(--color-accent);
}

.footer__links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
}

.footer__link {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-accent);
}

.footer__copy {
  color: rgba(255, 255, 255, 0.35);
}

/* ── Keyframes ───────────────────────────────────────── */

/* Hero entrance — staggers via animation-delay on each .hero__* child */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ── Demo Banner ─────────────────────────────────────── */
.demo-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #1a1a2e;
  color: #fff;
  text-align: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  z-index: 9999;
  border-top: 2px solid var(--color-accent, #f0a500);
}

.demo-banner a {
  color: var(--color-accent, #f0a500);
  text-decoration: underline;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: fixed;
    inset: var(--nav-height) 0 0 0;
    background: var(--color-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-xl);
  }

  .nav--open .nav__links {
    display: flex;
  }

  .nav__toggle {
    display: flex;
  }

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

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

@media (max-width: 480px) {
  :root {
    --space-2xl: 4rem;
  }
}