/* ============================================================
   ThePRGuy Design System
   Colors: Navy #151F34 | Green #82DE9B | Light #EFEFEF | White
   Typography: Inter (all weights)
   ============================================================ */

:root {
  /* === BRAND COLORS === */
  --color-bg:           #151F34;
  --color-bg-dark:      #0e1525;
  --color-surface:      #1a2640;
  --color-surface-2:    #1f2e4d;
  --color-accent:       #82DE9B;
  --color-accent-hover: #6bc887;
  --color-accent-active:#5ab575;
  --color-light:        #EFEFEF;
  --color-text:         #FFFFFF;
  --color-text-muted:   rgba(255, 255, 255, 0.65);
  --color-text-faint:   rgba(255, 255, 255, 0.35);
  --color-text-on-green:#151F34;
  --color-border:       rgba(255, 255, 255, 0.1);
  --color-border-accent:rgba(130, 222, 155, 0.3);
  --color-divider:      rgba(255, 255, 255, 0.06);

  /* === TYPOGRAPHY === */
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* === FLUID TYPE SCALE === */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    7rem);

  /* === SPACING (4px base) === */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* === LAYOUT === */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-max: 1400px;
  --content-full: 100%;

  /* === RADIUS === */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.5rem;
  --radius-full: 9999px;

  /* === TRANSITIONS === */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* === SHADOWS === */
  --shadow-sm:  0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg:  0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(130, 222, 155, 0.15);
}


/* ============================================================
   UTILITY CLASSES
   ============================================================ */

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

.container--narrow { max-width: var(--content-narrow); }
.container--default { max-width: var(--content-default); }
.container--max { max-width: var(--content-max); }

/* Section spacing */
.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

/* Text utilities */
.text-accent { color: var(--color-accent); }
.text-muted  { color: var(--color-text-muted); }
.text-faint  { color: var(--color-text-faint); }

/* Brand text treatment: "The" light, "PR" green bold, rest light */
.brand-text-the { color: var(--color-light); font-weight: 300; }
.brand-text-pr  { color: var(--color-accent); font-weight: 700; }
.brand-text-rest { color: var(--color-light); font-weight: 400; }


/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-text-on-green);
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: var(--shadow-glow);
}
.btn--primary:active {
  background: var(--color-accent-active);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.25);
}
.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  padding: var(--space-2) var(--space-4);
}
.btn--ghost:hover {
  background: rgba(130, 222, 155, 0.08);
}

/* Arrow icon inside buttons */
.btn .icon-arrow {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-interactive);
}
.btn:hover .icon-arrow {
  transform: translate(2px, -2px);
}


/* ============================================================
   CARDS
   ============================================================ */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.card:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-md);
}

.card--accent-left {
  border-left: 3px solid var(--color-accent);
}


/* ============================================================
   CALLOUT BOX (Green background)
   ============================================================ */

.callout {
  background: var(--color-accent);
  color: var(--color-text-on-green);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.callout a { color: var(--color-text-on-green); text-decoration: underline; }
.callout strong { font-weight: 700; }


/* ============================================================
   BADGE / TAG
   ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background: rgba(130, 222, 155, 0.1);
  color: var(--color-accent);
  border: 1px solid rgba(130, 222, 155, 0.2);
}


/* ============================================================
   DECORATIVE PATTERNS (from brand templates)
   ============================================================ */

/* Dotted circle pattern */
.pattern-dots {
  position: absolute;
  width: clamp(200px, 30vw, 500px);
  height: clamp(200px, 30vw, 500px);
  border-radius: 50%;
  background-image: radial-gradient(circle, var(--color-accent) 1px, transparent 1px);
  background-size: 12px 12px;
  opacity: 0.12;
  pointer-events: none;
}

/* Concentric circles */
.pattern-circles {
  position: absolute;
  width: clamp(200px, 25vw, 400px);
  height: clamp(200px, 25vw, 400px);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.08;
}
.pattern-circles::before,
.pattern-circles::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--color-accent);
}
.pattern-circles::before { inset: 15%; }
.pattern-circles::after  { inset: 30%; }

/* Large faded arrow watermark */
.pattern-arrow {
  position: absolute;
  opacity: 0.03;
  pointer-events: none;
}


/* ============================================================
   HEADER / NAV
   ============================================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(21, 31, 52, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--hidden { transform: translateY(-100%); }
.header--scrolled { box-shadow: var(--shadow-md); }

.header__inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
@media (min-width: 768px) {
  .header__inner { padding: var(--space-3) var(--space-8); }
}

.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.header__logo svg,
.header__logo img {
  height: 48px;
  width: auto;
}

/* Desktop nav */
.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
}
@media (min-width: 1024px) {
  .header__nav { display: flex; }
}

.header__nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
  white-space: nowrap;
}
.header__nav a:hover,
.header__nav a.active {
  color: var(--color-text);
}
.header__nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

/* Product links in nav — visible, not hidden */
.header__nav-product {
  font-size: var(--text-xs) !important;
  font-weight: 600 !important;
  letter-spacing: 0.01em;
}
.header__nav-product .brand-text-pr {
  color: var(--color-accent);
  font-weight: 700;
}
.header__nav-product:hover {
  color: var(--color-accent) !important;
}

/* Divider between nav groups */
.header__nav-divider {
  width: 1px;
  height: 16px;
  background: var(--color-border);
  flex-shrink: 0;
}

/* Language switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
}
.lang-switcher a {
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.lang-switcher a:hover { color: var(--color-text); }
.lang-switcher a.active,
.lang-switcher span.active {
  color: var(--color-accent);
  background: rgba(130, 222, 155, 0.1);
}
.lang-switcher span {
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.lang-switcher span.lang-disabled {
  color: var(--color-text-faint);
  opacity: 0.4;
  cursor: default;
}

/* CTA in header */
.header__cta {
  display: none;
}
@media (min-width: 1024px) {
  .header__cta { display: flex; }
}

/* Mobile hamburger */
.header__mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
}
@media (min-width: 1024px) {
  .header__mobile-toggle { display: none; }
}

.header__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: background var(--transition-interactive);
}
.header__mobile-toggle span::before,
.header__mobile-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition-interactive);
}
.header__mobile-toggle span::before { top: -7px; }
.header__mobile-toggle span::after  { top: 7px; }

/* Mobile menu open state */
.header__mobile-toggle[aria-expanded="true"] span { background: transparent; }
.header__mobile-toggle[aria-expanded="true"] span::before { transform: rotate(45deg) translate(5px, 5px); }
.header__mobile-toggle[aria-expanded="true"] span::after  { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav panel */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: var(--color-bg);
  padding: calc(64px + var(--space-8)) var(--space-6) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
}
.mobile-nav.open { transform: translateX(0); }

.mobile-nav a {
  display: block;
  padding: var(--space-3) 0;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-divider);
}
.mobile-nav a:hover,
.mobile-nav a.active { color: var(--color-text); }

.mobile-nav__cta {
  margin-top: auto;
  padding-top: var(--space-6);
}


/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  background: var(--color-bg-dark);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-12);
}

.footer__inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}
@media (min-width: 768px) {
  .footer__inner {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    padding-inline: var(--space-8);
  }
}

.footer__brand p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-4);
  max-width: 280px;
}

.footer__col h4 {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

.footer__col a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-1) 0;
}
.footer__col a:hover { color: var(--color-accent); }

.footer__social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 0;
}
.footer__social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.footer__bottom {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-6) var(--space-4) 0;
  border-top: 1px solid var(--color-divider);
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
@media (min-width: 768px) {
  .footer__bottom { padding-inline: var(--space-8); }
}


/* ============================================================
   HERO SECTION
   ============================================================ */

.hero {
  position: relative;
  overflow: visible;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding-block: var(--space-16) 0;
}

.hero__inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
  width: 100%;
}
@media (min-width: 768px) {
  .hero__inner {
    padding-inline: var(--space-8);
  }
}
@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1.1fr 1fr;
    gap: var(--space-8);
    align-items: end;
  }
}

.hero__badge {
  margin-bottom: var(--space-4);
}

.hero__title {
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
}
.hero__title .accent { color: var(--color-accent); }

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: var(--space-8);
  line-height: 1.5;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Hero photo area */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
}
.hero__photo {
  width: 100%;
  max-width: 560px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 32px rgba(0, 0, 0, 0.3));
}


/* ============================================================
   ECOSYSTEM SECTION
   ============================================================ */

.ecosystem__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 640px) {
  .ecosystem__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .ecosystem__grid { grid-template-columns: repeat(3, 1fr); }
}

.ecosystem__card {
  padding: var(--space-6);
}
.ecosystem__card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(130, 222, 155, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-accent);
}
.ecosystem__card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.ecosystem__card h3 .accent { color: var(--color-accent); }
.ecosystem__card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}


/* ============================================================
   SECTION HEADERS
   ============================================================ */

.section-header {
  margin-bottom: var(--space-10);
}
.section-header__label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.section-header__title {
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}
.section-header__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
}


/* ============================================================
   STATS ROW
   ============================================================ */

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .stats { grid-template-columns: repeat(4, 1fr); }
}

.stats__item {
  text-align: center;
}
.stats__number {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}
.stats__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}


/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }