/* =============================================
   SOVIOTECH — Design System
   Dark industrial. Not template. Not generic.
   ============================================= */

:root {
  --bg:       #0a0a0b;
  --bg-2:     #111113;
  --bg-3:     #19191d;
  --surface:  #1e1e23;
  --border:   #2a2a32;
  --border-2: #3a3a45;
  --text:     #e8e6e3;
  --text-2:   #9d9b97;
  --text-3:   #6b6966;
  --accent:   #c8ff00;
  --accent-2: #a6d400;
  --accent-dim: rgba(200, 255, 0, 0.08);
  --accent-glow: rgba(200, 255, 0, 0.15);
  --blue:     #4a9eff;
  --font:     'Space Grotesk', -apple-system, sans-serif;
  --mono:     'JetBrains Mono', 'Fira Code', monospace;
  --ease:     cubic-bezier(0.16, 1, 0.3, 1);
  --max-w:    1200px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.hide-mobile { display: inline; }
@media (max-width: 640px) { .hide-mobile { display: none; } }


/* =============================================
   NAV
   ============================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: all 0.4s var(--ease);
}

.nav--scrolled {
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.nav--hidden {
  transform: translateY(-100%);
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav__logo-mark {
  color: var(--accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links a {
  font-size: 0.875rem;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

.nav__links a:hover {
  color: var(--text);
}

.nav__cta {
  background: var(--accent) !important;
  color: var(--bg) !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.8rem !important;
  letter-spacing: 0.02em;
  transition: opacity 0.2s !important;
}

.nav__cta:hover {
  opacity: 0.85;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s var(--ease);
}

.nav__toggle.open span:first-child {
  transform: rotate(45deg) translate(3px, 3px);
}

.nav__toggle.open span:last-child {
  transform: rotate(-45deg) translate(3px, -3px);
}

@media (max-width: 768px) {
  .nav__toggle { display: flex; }
  .nav__links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease);
  }
  .nav__links.open {
    opacity: 1;
    visibility: visible;
  }
  .nav__links a {
    font-size: 1.3rem;
    color: var(--text);
  }
}


/* =============================================
   HERO
   ============================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(200, 255, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 255, 0, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero__content {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  position: relative;
}

.hero__tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero__title {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero__title-accent {
  color: var(--accent);
  display: inline-block;
  transition: all 0.4s var(--ease);
}

.hero__title-accent--out {
  opacity: 0;
  transform: translateY(8px);
}

.hero__sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-2);
  max-width: 620px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero__stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.hero__stat {
  opacity: 0;
  transform: translateY(16px);
  transition: all 0.6s var(--ease);
}

.hero__stat.revealed {
  opacity: 1;
  transform: none;
}

.hero__stat-num {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  font-family: var(--mono);
}

.hero__stat-plus {
  font-size: 1.4rem;
  color: var(--accent);
  font-weight: 600;
}

.hero__stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-3);
  margin-top: 2px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 40px;
  right: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero__scroll-hint span {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  writing-mode: vertical-rl;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; height: 48px; }
  50% { opacity: 1; height: 64px; }
}


/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.25s var(--ease);
  cursor: pointer;
  border: none;
  letter-spacing: 0.01em;
}

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

.btn--primary:hover {
  background: var(--accent-2);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-2);
}

.btn--ghost:hover {
  border-color: var(--text-2);
  background: rgba(255,255,255,0.03);
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1rem;
}


/* =============================================
   SECTIONS — SHARED
   ============================================= */
section {
  padding: 120px 0;
}

.section-header {
  margin-bottom: 64px;
}

.section-tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-2);
  margin-top: 16px;
  max-width: 540px;
  line-height: 1.7;
}


/* =============================================
   SOLUTIONS
   ============================================= */
.solutions {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.solutions__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.solution-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 32px;
  transition: all 0.4s var(--ease);
  opacity: 0;
  transform: translateY(24px);
}

.solution-card.revealed {
  opacity: 1;
  transform: none;
}

.solution-card:hover {
  border-color: var(--border-2);
  background: var(--bg-3);
}

.solution-card__icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: 20px;
}

.solution-card__icon svg {
  width: 100%;
  height: 100%;
}

.solution-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.solution-card p {
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 20px;
}

.solution-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.solution-card__tags span {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-3);
  background: var(--accent-dim);
  border: 1px solid rgba(200, 255, 0, 0.1);
  padding: 3px 10px;
  border-radius: 4px;
}

@media (max-width: 640px) {
  .solutions__grid { grid-template-columns: 1fr; }
}


/* =============================================
   PROCESS
   ============================================= */
.process {
  border-bottom: 1px solid var(--border);
}

.process__steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.process__step {
  flex: 1;
  padding: 32px 24px;
  opacity: 0;
  transform: translateY(24px);
  transition: all 0.5s var(--ease);
}

.process__step.revealed {
  opacity: 1;
  transform: none;
}

.process__step-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}

.process__step h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.process__step p {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.65;
}

.process__connector {
  width: 48px;
  min-width: 48px;
  height: 1px;
  background: var(--border-2);
  margin-top: 60px;
}

@media (max-width: 768px) {
  .process__steps {
    flex-direction: column;
    gap: 8px;
  }
  .process__connector {
    width: 1px;
    min-width: 1px;
    height: 32px;
    margin: 0 0 0 40px;
  }
}


/* =============================================
   PROJECTS
   ============================================= */
.projects {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.project {
  margin-bottom: 80px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(32px);
  transition: all 0.6s var(--ease);
}

.project.revealed {
  opacity: 1;
  transform: none;
}

.project:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.project__header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
}

.project__number {
  font-family: var(--mono);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent-dim);
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(200, 255, 0, 0.15);
}

.project__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.project__industry {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.project__type {
  font-size: 0.8rem;
  color: var(--text-3);
}

.project__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.project__title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.project__desc {
  font-size: 0.95rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 12px;
}

.project__result {
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.project__result-item {
  padding-left: 16px;
  border-left: 2px solid var(--accent);
}

.project__result-item strong {
  display: block;
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 2px;
}

.project__result-item span {
  font-size: 0.85rem;
  color: var(--text-3);
  line-height: 1.5;
}

.project__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 20px;
}

.project__stack span {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-3);
  background: var(--bg-3);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 4px;
}

/* Terminal-style code block */
.project__terminal {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 0.82rem;
  position: sticky;
  top: 100px;
}

.project__terminal-bar {
  display: flex;
  gap: 6px;
  padding: 12px 16px;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}

.project__terminal-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-2);
}

.project__terminal pre {
  padding: 20px;
  overflow-x: auto;
  line-height: 1.8;
}

.project__terminal code {
  font-family: var(--mono);
}

.t-comment { color: var(--text-3); }
.t-key     { color: var(--text-2); }
.t-prop    { color: var(--blue); }
.t-val     { color: var(--accent); }
.t-str     { color: #e8a848; }

@media (max-width: 768px) {
  .project__body {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .project__terminal {
    position: static;
  }
}


/* =============================================
   TECH STACK
   ============================================= */
.stack__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stack__col {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s var(--ease);
}

.stack__col.revealed {
  opacity: 1;
  transform: none;
}

.stack__col h4 {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.stack__col ul {
  list-style: none;
}

.stack__col li {
  font-size: 0.9rem;
  color: var(--text-2);
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.stack__col li:last-child {
  border-bottom: none;
}

@media (max-width: 768px) {
  .stack__grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

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


/* =============================================
   TEAM
   ============================================= */
.team {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.team__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.team__member {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  transition: all 0.4s var(--ease);
  opacity: 0;
  transform: translateY(24px);
}

.team__member.revealed {
  opacity: 1;
  transform: none;
}

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

.team__avatar {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  background: var(--accent-dim);
  border: 1px solid rgba(200, 255, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--accent);
}

.team__member h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.team__role {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 14px;
}

.team__member p {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.65;
}

@media (max-width: 768px) {
  .team__grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
}


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

.cta__inner {
  max-width: 640px;
  margin: 0 auto;
}

.cta__title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 16px 0 20px;
}

.cta__sub {
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 36px;
}

.cta__actions {
  margin-bottom: 24px;
}

.cta__actions .btn {
  font-family: var(--mono);
  font-size: 0.9rem;
  letter-spacing: 0;
}

.cta__details span {
  font-size: 0.85rem;
  color: var(--text-3);
}


/* =============================================
   FOOTER
   ============================================= */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__brand {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--text-2);
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--text-3);
}

@media (max-width: 480px) {
  .footer__inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}


/* =============================================
   SELECTION + SCROLLBAR
   ============================================= */
::selection {
  background: var(--accent);
  color: var(--bg);
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border-2);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-3);
}