/* Prasanta Communications — design tokens & layout */

/*
 * REVERT FONTS (previous dark-theme pair):
 *   --font-display: "Syne", system-ui, sans-serif;
 *   --font-body: "IBM Plex Sans", system-ui, sans-serif;
 * Google Fonts URL:
 *   family=IBM+Plex+Sans:wght@400;500;600&family=Syne:wght@600;700;800
 */

/* Brand red locked to images/prasanta-communications.png (#FF0000). */
:root {
  --bg: #f5f5f5;
  --bg-elevated: #ffffff;
  --red: #ff0000;
  --red-hot: #e60000;
  --red-dim: rgba(255, 0, 0, 0.08);
  --ink: #0a0a0a;
  --ink-muted: #5a5a5a;
  --ink-faint: #8a8a8a;
  --rule: rgba(10, 10, 10, 0.1);
  --font-display: "JetBrains Mono", ui-monospace, monospace;
  --font-body: "IBM Plex Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 74rem;
  --gutter: clamp(1.25rem, 4vw, 2.75rem);
  --lean: -8deg;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

i {
  font-style: normal;
}

/* —— Atmosphere —— */

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 45% at 85% 0%, var(--red-dim), transparent 55%),
    linear-gradient(115deg, transparent 60%, rgba(255, 0, 0, 0.03) 100%),
    var(--bg);
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.4;
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(115deg, black 0%, transparent 70%);
}

/* —— Site chrome —— */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem var(--gutter);
  background: rgba(245, 245, 245, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: -0.03em;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.brand-mark {
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
  object-fit: contain;
}

.brand span {
  display: none;
}

@media (min-width: 520px) {
  .brand span {
    display: inline;
  }
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 1.75rem);
  font-family: var(--font-display);
}

.nav a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
  transition: color 0.2s var(--ease);
  display: inline-flex;
  gap: 0.4rem;
  align-items: baseline;
}

.nav a i {
  color: var(--red);
  font-size: 0.65rem;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ink);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  display: block;
  width: 1rem;
  height: 1px;
  background: var(--ink);
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--ink);
}

.nav-toggle span::before {
  top: -5px;
}

.nav-toggle span::after {
  top: 5px;
}

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem var(--gutter) 1rem;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--rule);
  }

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

  .nav a {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--rule);
  }
}

/* —— Announcement —— */

.announce {
  border-bottom: 1px solid var(--rule);
  background: #fff;
}

.announce-link {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.45rem 0.85rem;
  padding: 0.65rem var(--gutter);
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  text-align: center;
  transition: background 0.2s var(--ease);
}

.announce-link:hover {
  background: rgba(255, 0, 0, 0.04);
}

.announce-tag {
  color: #fff;
  background: var(--red);
  padding: 0.15rem 0.45rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.62rem;
  clip-path: polygon(0 0, 100% 0, 92% 100%, 0 100%);
}

.announce-text {
  color: var(--ink);
  font-weight: 500;
}

.announce-url {
  color: var(--red);
  font-weight: 600;
}

@media (max-width: 520px) {
  .announce-url {
    width: 100%;
  }
}

/* —— Buttons / links —— */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.9rem 1.35rem;
  border: none;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.btn-primary {
  background: var(--red);
  color: #ffffff;
  clip-path: polygon(0 0, 100% 0, 96% 100%, 0 100%);
}

.btn-primary:hover {
  background: var(--red-hot);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--rule);
}

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

.link-underline {
  position: relative;
  display: inline-block;
}

.link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.link-underline:hover::after {
  transform: scaleX(1);
}

/* —— Layout helpers —— */

.wrap {
  width: min(100% - 2 * var(--gutter), var(--max));
  margin-inline: auto;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 4.5vw, 3rem);
  letter-spacing: -0.05em;
  line-height: 1.1;
  margin-bottom: 0.85rem;
}

.section-lead {
  color: var(--ink-muted);
  max-width: 34rem;
  font-size: 0.98rem;
}

/* —— Motion —— */

.reveal {
  opacity: 0;
  transform: translateY(1.4rem) skewY(0.4deg);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* —— Hero —— */

.hero {
  position: relative;
  min-height: min(94vh, 54rem);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(3rem, 8vw, 5rem) 0 clamp(3.5rem, 8vw, 5.5rem);
  overflow: hidden;
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-mark {
  position: absolute;
  right: -4%;
  top: 8%;
  width: min(52vw, 26rem);
  opacity: 0.12;
  transform: rotate(var(--lean));
  filter: contrast(1.1);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .hero-inner {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: end;
    gap: 3rem;
  }

  .hero-brand {
    grid-column: 1;
  }

  .hero-copy {
    grid-column: 2;
    padding-bottom: 0.5rem;
  }
}

.hero-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 10vw, 6.2rem);
  letter-spacing: -0.06em;
  line-height: 0.92;
  margin: 0;
}

.hero-brand-line {
  display: block;
}

.hero-brand .accent {
  color: var(--red);
  transform: translateX(0.08em);
}

.hero-headline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1rem, 2vw, 1.2rem);
  letter-spacing: -0.03em;
  line-height: 1.35;
  margin-bottom: 0.85rem;
}

.hero-support {
  color: var(--ink-muted);
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
  max-width: 28rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

/* —— Products —— */

.products {
  padding-top: clamp(3.5rem, 8vw, 5.5rem);
  padding-bottom: clamp(2rem, 5vw, 3rem);
}

.products-intro {
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.product-stack {
  border-top: 1px solid var(--rule);
}

.product {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: clamp(2.25rem, 5vw, 3.5rem) var(--gutter);
  border-bottom: 1px solid var(--rule);
  transition: background 0.35s var(--ease);
}

.product::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--red);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s var(--ease);
}

.product:hover {
  background: rgba(255, 255, 255, 0.65);
}

.product:hover::before {
  transform: scaleY(1);
}

.product--shift .product-main {
  margin-left: 0;
}

@media (min-width: 800px) {
  .product--shift .product-main {
    margin-left: clamp(2rem, 10vw, 8rem);
  }
}

.product-index {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 0, 0, 0.45);
  line-height: 1;
  padding-top: 0.15rem;
}

.product-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem 1.25rem;
  margin-bottom: 0.85rem;
}

.product-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  letter-spacing: -0.05em;
  line-height: 1.05;
}

.product-meta {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
}

.product-body {
  color: var(--ink-muted);
  max-width: 38rem;
  font-size: 0.95rem;
  margin-bottom: 1.1rem;
}

.product-link {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.02em;
  border-bottom: 1px solid var(--red);
  padding-bottom: 0.15rem;
  transition: color 0.2s var(--ease);
}

.product-link:hover {
  color: var(--red);
}

/* —— Studio —— */

.studio {
  position: relative;
  padding: clamp(4.5rem, 11vw, 7.5rem) 0;
  overflow: hidden;
  border-top: 1px solid var(--rule);
}

.studio-slash {
  position: absolute;
  inset: 20% -20% auto;
  height: 40%;
  background: linear-gradient(115deg, transparent 20%, rgba(255, 0, 0, 0.06) 50%, transparent 80%);
  transform: skewY(var(--lean));
  pointer-events: none;
}

.studio-inner {
  position: relative;
  display: grid;
  gap: 2rem;
}

@media (min-width: 800px) {
  .studio-inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: end;
  }
}

.studio-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  letter-spacing: -0.045em;
  line-height: 1.2;
  max-width: 22ch;
}

.studio-copy {
  color: var(--ink-muted);
  font-size: 1rem;
  max-width: 28rem;
  margin-bottom: 1.5rem;
}

/* —— Page hero (inner pages) —— */

.page-hero {
  padding: clamp(3rem, 8vw, 5rem) 0 clamp(2rem, 4vw, 3rem);
  position: relative;
}

.page-title {
  position: relative;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3rem, 12vw, 7rem);
  letter-spacing: -0.06em;
  line-height: 0.9;
  margin-bottom: 1.25rem;
}

.page-title-ghost {
  position: absolute;
  left: 0.05em;
  top: -0.15em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 0, 0, 0.25);
  z-index: -1;
  user-select: none;
}

.page-lead {
  color: var(--ink-muted);
  max-width: 30rem;
}

/* —— Team —— */

.team-list {
  border-top: 1px solid var(--rule);
}

.person {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.5rem;
  padding: clamp(2rem, 5vw, 3.25rem) var(--gutter);
  border-bottom: 1px solid var(--rule);
  align-items: start;
  transition: background 0.3s var(--ease);
}

.person:hover {
  background: rgba(255, 255, 255, 0.65);
}

@media (min-width: 800px) {
  .person {
    grid-template-columns: 4.5rem minmax(10rem, 0.9fr) 1.2fr;
    gap: 2rem 3rem;
    align-items: center;
  }
}

.person-index {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--red);
  letter-spacing: 0.08em;
  padding-top: 0.35rem;
}

.person-role {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.35rem;
}

.person-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  letter-spacing: -0.05em;
  line-height: 1.05;
}

.person-detail {
  grid-column: 2;
}

@media (min-width: 800px) {
  .person-detail {
    grid-column: auto;
  }
}

.person-bio {
  color: var(--ink-muted);
  max-width: 34rem;
  font-size: 0.95rem;
}

.person-links {
  margin-top: 0.85rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
}

.person-links a {
  color: var(--red);
}

.person-links a:hover {
  color: var(--red-hot);
}

.team-cta {
  padding: clamp(3rem, 8vw, 5rem) 0;
  text-align: center;
}

.team-cta p {
  color: var(--ink-muted);
  margin-bottom: 1.25rem;
}

/* —— Contact —— */

.contact-block {
  padding-bottom: clamp(4rem, 10vw, 7rem);
}

.contact-mega {
  display: block;
  padding: clamp(2.5rem, 6vw, 4rem) var(--gutter);
  border-block: 1px solid var(--rule);
  transition: background 0.3s var(--ease);
}

.contact-mega:hover {
  background: #fff;
}

.contact-mega:hover .contact-mega-value {
  color: var(--red);
}

.contact-mega-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.75rem;
}

.contact-mega-value {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 5.5vw, 3.5rem);
  letter-spacing: -0.05em;
  line-height: 1.1;
  word-break: break-word;
  transition: color 0.25s var(--ease);
}

.contact-row {
  display: grid;
  gap: 0;
  padding-top: 0;
}

@media (min-width: 700px) {
  .contact-row {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-tile {
  display: block;
  padding: clamp(2rem, 4vw, 3rem) 0;
  border-bottom: 1px solid var(--rule);
  transition: color 0.25s var(--ease);
}

@media (min-width: 700px) {
  .contact-tile {
    padding-right: 2rem;
  }

  .contact-tile + .contact-tile {
    padding-left: 2rem;
    border-left: 1px solid var(--rule);
  }
}

.contact-tile:hover .contact-tile-value {
  color: var(--red);
}

.contact-tile-value {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  letter-spacing: -0.03em;
  transition: color 0.25s var(--ease);
}

/* —— Footer —— */

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 2.5rem 0 3rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  justify-content: space-between;
  align-items: flex-start;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.footer-meta {
  color: var(--ink-faint);
  font-size: 0.8rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
}

.footer-links a {
  color: var(--ink-muted);
  transition: color 0.2s var(--ease);
}

.footer-links a:hover {
  color: var(--red);
}