@import 'variables.css';

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; scroll-padding-top: 80px; }
body { font-family: var(--font-main); color: var(--color-text); background-color: var(--color-bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* === Typography === */
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-primary); line-height: 1.2; margin-bottom: var(--spacing-sm); }
h1 { font-size: 3.5rem; font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: 2.5rem; font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.15rem; font-weight: 600; }
p { margin-bottom: var(--spacing-sm); }

/* === Layout === */
.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 var(--spacing-sm); }
section { padding: var(--spacing-xl) 0; }

/* === Buttons === */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.75rem 1.5rem; border-radius: var(--radius-full); font-weight: 600; font-size: 1rem; transition: var(--transition); }
.btn-primary { background-color: var(--color-accent); color: white; }
.btn-primary:hover { background-color: var(--color-accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-secondary { background-color: transparent; color: var(--color-primary); border: 2px solid var(--color-border); }
.btn-secondary:hover { border-color: var(--color-primary); }

/* === Header === */
.site-header { position: fixed; top: 0; left: 0; width: 100%; background-color: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); z-index: 1000; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { font-family: var(--font-heading); font-weight: 700; font-size: 1.5rem; color: var(--color-primary); }
.logo .dot { color: var(--color-accent); }
.main-nav ul { display: flex; align-items: center; gap: var(--spacing-md); }
.main-nav a:not(.btn) { font-weight: 500; font-size: 0.95rem; }
.main-nav a:not(.btn):hover { color: var(--color-accent); }
.menu-toggle { display: none; }
.lang-switcher { display: flex; align-items: center; gap: 4px; margin-left: var(--spacing-sm); font-size: 0.9rem; font-weight: 600; }
.lang-btn { font-weight: 600; color: var(--color-text-light); padding: 2px 4px; transition: color 0.2s; }
.lang-btn:hover { color: var(--color-primary); }
.lang-btn.active { color: var(--color-accent); }
.divider { color: var(--color-border); }

/* === Hero === */
.hero { padding-top: 140px; padding-bottom: var(--spacing-xl); }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); align-items: center; }
.hero-content { max-width: 560px; }
.hero h1 { font-size: 3.5rem; margin-bottom: var(--spacing-md); }
.hero-sub { font-size: 1.2rem; color: var(--color-text); margin-bottom: var(--spacing-lg); line-height: 1.7; }
.hero-actions { display: flex; gap: var(--spacing-sm); }

/* Hero Diagram */
.hero-diagram { display: flex; flex-direction: column; align-items: center; gap: 0; }
.diagram-node { display: flex; align-items: center; gap: var(--spacing-sm); background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1rem 1.5rem; font-weight: 600; font-size: 0.95rem; color: var(--color-primary); width: 200px; }
.diagram-node svg { color: var(--color-accent); width: 20px; height: 20px; }
.diagram-connector { width: 2px; height: 24px; background: var(--color-border); }
.node-1 { transform: translateX(-30px); }
.node-2 { transform: translateX(30px); }
.node-3 { transform: translateX(-30px); }

/* === Hero Badge === */
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; font-weight: 600; color: var(--color-accent); margin-bottom: var(--spacing-md); letter-spacing: 0.02em; }

/* === Clients Bar === */
.clients { padding: var(--spacing-md) 0; border-bottom: 1px solid var(--color-border); }
.clients-label { text-align: center; font-size: 0.85rem; color: var(--color-text-light); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; margin-bottom: var(--spacing-sm); }
.clients-grid { display: flex; align-items: center; justify-content: center; gap: var(--spacing-lg); flex-wrap: wrap; }
.client-logo { opacity: 0.5; transition: var(--transition); filter: grayscale(100%); }
.client-logo:hover { opacity: 1; filter: grayscale(0%); }
.client-logo img { height: 32px; width: auto; }

/* === Why Techshake === */
.why-section h2 { margin-bottom: var(--spacing-sm); }
.why-lead { font-size: 1.15rem; color: var(--color-text-light); max-width: 600px; margin-bottom: var(--spacing-lg); }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
.why-card { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); border-left: 3px solid var(--color-accent); transition: var(--transition); }
.why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.why-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(14, 165, 233, 0.1); color: var(--color-accent); display: flex; align-items: center; justify-content: center; margin-bottom: var(--spacing-sm); }
.why-icon svg { width: 24px; height: 24px; }
.why-card h3 { font-size: 1.25rem; }
.why-card p { color: var(--color-text-light); margin-bottom: 0; }

/* === Social Proof Bar === */
.proof-bar { background: var(--color-primary); padding: var(--spacing-md) 0; }
.proof-inner { display: flex; align-items: center; justify-content: center; gap: var(--spacing-lg); }
.proof-item { text-align: center; }
.proof-stat { font-family: var(--font-heading); font-size: 2rem; font-weight: 800; color: var(--color-accent); display: block; }
.proof-label { font-size: 0.9rem; color: #94a3b8; }
.proof-divider { width: 1px; height: 40px; background: rgba(255, 255, 255, 0.1); }

/* === Problem Section === */
.problem { background: var(--color-bg-alt); }
.problem h2 { max-width: 500px; margin-bottom: var(--spacing-lg); }
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
.problem-card { background: white; border-radius: var(--radius-lg); padding: var(--spacing-md); border: 1px solid var(--color-border); border-top: 3px solid var(--color-warning); transition: var(--transition); }
.problem-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.problem-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(249, 115, 22, 0.1); color: var(--color-warning); display: flex; align-items: center; justify-content: center; margin-bottom: var(--spacing-sm); }
.problem-icon svg { width: 24px; height: 24px; }
.problem-card h3 { font-size: 1.25rem; }
.problem-card p { color: var(--color-text-light); margin-bottom: 0; }

/* === Techshake AI Section === */
.tai-section { padding: var(--spacing-xl) 0; }
.tai-section h2 { text-align: center; margin-bottom: var(--spacing-lg); }

.tai-steps { display: flex; flex-direction: column; align-items: center; gap: 0; margin-bottom: var(--spacing-lg); }
.tai-step { background: white; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md) var(--spacing-lg); max-width: 600px; width: 100%; position: relative; text-align: center; transition: var(--transition); }
.tai-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--color-accent); }
.tai-step-num { position: absolute; top: 12px; right: 16px; font-size: 3rem; font-weight: 900; opacity: 0.05; color: var(--color-primary); line-height: 1; }
.tai-step-icon { width: 56px; height: 56px; border-radius: 14px; background: rgba(14, 165, 233, 0.1); color: var(--color-accent); display: flex; align-items: center; justify-content: center; margin: 0 auto var(--spacing-sm); }
.tai-step-icon svg { width: 28px; height: 28px; }
.tai-step h3 { margin-bottom: 0.5rem; }
.tai-step p { color: var(--color-text-light); margin-bottom: 0; }
.tai-step-connector { width: 2px; height: 32px; background: linear-gradient(180deg, var(--color-accent), var(--color-border)); }

.tai-footer { text-align: center; font-style: italic; color: var(--color-text-light); margin-bottom: var(--spacing-lg); }

.tai-benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
.tai-benefit { text-align: center; padding: var(--spacing-md); background: var(--color-bg-alt); border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
.tai-benefit-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(14, 165, 233, 0.1); color: var(--color-accent); display: flex; align-items: center; justify-content: center; margin: 0 auto var(--spacing-sm); }
.tai-benefit-icon svg { width: 24px; height: 24px; }
.tai-benefit h4 { margin-bottom: 0.25rem; }
.tai-benefit p { color: var(--color-text-light); margin-bottom: 0; font-size: 0.95rem; }

/* === Techshake Arena === */
.arena-section { background: var(--color-bg-alt); }
.arena-eyebrow { display: inline-block; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.15em; color: var(--color-accent); margin-bottom: var(--spacing-xs); }
.arena-section h2 { margin-bottom: var(--spacing-sm); }
.arena-lead { font-size: 1.15rem; color: var(--color-text-light); max-width: 700px; margin-bottom: var(--spacing-lg); }

.battle-card { background: var(--color-primary); border-radius: var(--radius-lg); padding: var(--spacing-md); margin-bottom: var(--spacing-lg); color: white; }
.battle-header { text-align: center; margin-bottom: var(--spacing-md); }
.battle-label { font-family: var(--font-heading); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.2em; color: var(--color-accent); text-transform: uppercase; }
.battle-arena { display: grid; grid-template-columns: 1fr auto 1fr; gap: var(--spacing-md); align-items: start; margin-bottom: var(--spacing-md); }
.agent-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-md); padding: var(--spacing-sm); }
.agent-tester { border-top: 2px solid var(--color-accent); }
.agent-chaos { border-top: 2px solid #f97316; }
.agent-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: var(--spacing-xs); }
.agent-header svg { width: 20px; height: 20px; }
.agent-tester .agent-header svg { color: var(--color-accent); }
.agent-chaos .agent-header svg { color: #f97316; }
.agent-header h4 { font-size: 1rem; color: white; margin-bottom: 0; }
.agent-model { font-size: 0.7rem; font-family: var(--font-main); font-weight: 400; color: #94a3b8; letter-spacing: 0.05em; }
.agent-role { font-size: 0.85rem; color: #94a3b8; margin-bottom: var(--spacing-xs); }
.agent-tools { display: flex; flex-wrap: wrap; gap: 4px; }
.tool-tag { font-size: 0.65rem; font-family: var(--font-main); font-weight: 500; padding: 2px 8px; border-radius: var(--radius-sm); background: rgba(14,165,233,0.1); border: 1px solid rgba(14,165,233,0.2); color: var(--color-accent); }
.agent-abilities { display: flex; flex-direction: column; gap: 4px; }
.ability { display: flex; justify-content: space-between; font-size: 0.8rem; color: #94a3b8; }
.ability-dmg { font-family: var(--font-main); font-weight: 600; color: #f97316; font-size: 0.75rem; }
.battle-vs { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800; color: #475569; display: flex; align-items: center; justify-content: center; padding-top: var(--spacing-md); }
.battle-referee { display: flex; align-items: center; gap: var(--spacing-sm); padding: var(--spacing-sm); background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-md); margin-bottom: var(--spacing-sm); }
.battle-referee svg { width: 24px; height: 24px; color: #94a3b8; flex-shrink: 0; }
.battle-referee h4 { font-size: 0.95rem; color: white; margin-bottom: 0; }
.battle-referee p { font-size: 0.8rem; color: #94a3b8; margin-bottom: 0; }
.battle-levels { display: flex; justify-content: center; gap: var(--spacing-xs); }
.level { font-size: 0.7rem; font-weight: 600; padding: 4px 12px; border-radius: var(--radius-full); letter-spacing: 0.05em; }
.level-easy { background: rgba(74,222,128,0.15); color: #4ade80; }
.level-medium { background: rgba(251,191,36,0.15); color: #fbbf24; }
.level-hard { background: rgba(251,146,60,0.15); color: #fb923c; }
.level-nightmare { background: rgba(248,113,113,0.15); color: #f87171; }

.arena-demo { margin-bottom: var(--spacing-lg); max-width: 70%; margin-left: auto; margin-right: auto; }
.demo-screenshot { position: relative; overflow: hidden; border-radius: var(--radius-lg); cursor: pointer; transition: transform 0.3s ease; }
.demo-screenshot:hover { transform: scale(1.02); }
.demo-screenshot img { width: 100%; height: auto; display: block; }
.demo-overlay { position: absolute; inset: 0; background: rgba(15, 23, 42, 0.6); display: flex; flex-direction: column; align-items: center; justify-content: center; color: white; transition: background 0.3s ease; }
.demo-screenshot:hover .demo-overlay { background: rgba(15, 23, 42, 0.45); }
.demo-overlay svg { width: 64px; height: 64px; margin-bottom: var(--spacing-sm); animation: pulse-icon 2s ease-in-out infinite; }
.demo-overlay p { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 600; letter-spacing: 0.05em; margin-bottom: 0; }
@keyframes pulse-icon { 0%, 100% { opacity: 0.8; transform: scale(1); } 50% { opacity: 1; transform: scale(1.1); } }

.arena-usecases-title { margin-bottom: var(--spacing-md); }
.arena-usecases { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
.usecase-card { background: white; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); transition: var(--transition); }
.usecase-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.usecase-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(14,165,233,0.1); color: var(--color-accent); display: flex; align-items: center; justify-content: center; margin-bottom: var(--spacing-sm); }
.usecase-icon svg { width: 24px; height: 24px; }
.usecase-card h4 { margin-bottom: 0.25rem; }
.usecase-card p { color: var(--color-text-light); margin-bottom: 0; font-size: 0.95rem; }

/* === Services === */
.services h2 { margin-bottom: var(--spacing-sm); }
.services-verticals { font-size: 0.9rem; color: var(--color-text-light); margin-bottom: var(--spacing-lg); font-weight: 500; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
.service-card { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); position: relative; }
.service-card h3 { margin-bottom: 0.5rem; }
.service-card p { color: var(--color-text-light); margin-bottom: 0; }
.service-highlight { border-left: 3px solid var(--color-accent); }
.service-badge { position: absolute; top: 12px; right: 12px; font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; background: var(--color-accent); color: white; padding: 2px 8px; border-radius: var(--radius-full); }

/* === Academy === */
.academy { background: var(--color-bg-alt); }
.academy h2 { margin-bottom: var(--spacing-sm); }
.academy-lead { font-size: 1.15rem; color: var(--color-text-light); margin-bottom: var(--spacing-lg); max-width: 500px; }
.academy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); margin-bottom: var(--spacing-md); }
.academy-card { background: white; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); transition: var(--transition); }
.academy-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.academy-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(14,165,233,0.1); color: var(--color-accent); display: flex; align-items: center; justify-content: center; margin-bottom: var(--spacing-sm); }
.academy-icon svg { width: 24px; height: 24px; }
.academy-card h4 { margin-bottom: 0.25rem; }
.academy-card p { color: var(--color-text-light); margin-bottom: 0; font-size: 0.95rem; }
.academy-meta { display: flex; align-items: center; gap: var(--spacing-sm); font-weight: 600; color: var(--color-primary); font-size: 0.95rem; }

/* === About === */
.about { background: var(--color-bg-alt); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); align-items: center; }
.about-content p { color: var(--color-text); }
.about-facts { display: flex; align-items: center; gap: var(--spacing-sm); margin-top: var(--spacing-md); font-weight: 600; color: var(--color-primary); font-size: 0.95rem; }
.about-fact { white-space: nowrap; }
.about-fact-divider { color: var(--color-text-light); }
.about-img { border-radius: var(--radius-lg); }

/* === About Tech Stack === */
.about-tech { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-top: var(--spacing-sm); }
.about-tech-label { font-size: 0.85rem; color: var(--color-text-light); font-weight: 500; }
.about-tech-tag { font-size: 0.75rem; font-weight: 600; padding: 2px 10px; border-radius: var(--radius-full); background: rgba(14,165,233,0.1); color: var(--color-accent); border: 1px solid rgba(14,165,233,0.15); }

/* === Speaking & GTM === */
.speaking h2 { margin-bottom: var(--spacing-sm); }
.speaking-lead { font-size: 1.15rem; color: var(--color-text-light); margin-bottom: var(--spacing-lg); max-width: 600px; }
.speaking-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
.speaking-card { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); transition: var(--transition); }
.speaking-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.speaking-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(14,165,233,0.1); color: var(--color-accent); display: flex; align-items: center; justify-content: center; margin-bottom: var(--spacing-sm); }
.speaking-icon svg { width: 24px; height: 24px; }
.speaking-card h4 { margin-bottom: 0.25rem; }
.speaking-card p { color: var(--color-text-light); margin-bottom: 0; font-size: 0.95rem; }

/* === Contact === */
.contact { background: var(--color-primary); color: white; text-align: center; }
.contact-inner { max-width: 600px; margin: 0 auto; }
.contact h2 { color: white; margin-bottom: var(--spacing-sm); }
.contact-desc { color: #94a3b8; margin-bottom: var(--spacing-lg); font-size: 1.1rem; }
.contact-details { display: flex; justify-content: center; gap: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.contact-item { display: flex; align-items: center; gap: 0.5rem; }
.contact-item svg { width: 18px; height: 18px; color: var(--color-accent); }
.contact-item a { color: white; font-weight: 500; }
.contact-item a:hover { color: var(--color-accent); }
.contact-cta { font-size: 1.1rem; padding: 1rem 2rem; }

/* === Footer === */
.site-footer { padding: var(--spacing-md) 0; border-top: 1px solid var(--color-border); }
.footer-content { display: flex; align-items: center; justify-content: space-between; font-size: 0.9rem; color: var(--color-text-light); }
.footer-logo { font-family: var(--font-heading); font-weight: 700; font-size: 1.1rem; color: var(--color-primary); }
.footer-link { color: var(--color-text-light); font-weight: 500; }
.footer-link:hover { color: var(--color-accent); }

/* === Mobile === */
@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  section { padding: var(--spacing-lg) 0; }

  .main-nav { position: fixed; top: 70px; left: 0; width: 100%; background: var(--color-bg); border-bottom: 1px solid var(--color-border); padding: var(--spacing-md); box-shadow: var(--shadow-md); transform: translateY(-150%); transition: transform 0.3s ease-in-out, opacity 0.3s; opacity: 0; pointer-events: none; display: block; }
  .main-nav.active { transform: translateY(0); opacity: 1; pointer-events: all; }
  .main-nav ul { flex-direction: column; gap: var(--spacing-md); align-items: center; }
  .menu-toggle { display: block; width: 30px; height: 20px; position: relative; }
  .menu-toggle span { display: block; width: 100%; height: 2px; background-color: var(--color-primary); margin-bottom: 5px; transition: var(--transition); }
  .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .menu-toggle.active span:nth-child(2) { opacity: 0; }
  .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .hero { padding-top: 110px; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-visual { display: none; }

  .proof-inner { flex-direction: column; gap: var(--spacing-md); }
  .proof-divider { width: 40px; height: 1px; }

  .clients-grid { gap: var(--spacing-md); }
  .client-logo img { height: 24px; }
  .why-grid { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: 1fr; }
  .tai-benefits { grid-template-columns: 1fr; }
  .battle-arena { grid-template-columns: 1fr; }
  .battle-vs { padding: 0; font-size: 1.2rem; }
  .arena-demo { max-width: 100%; }
  .arena-usecases { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .academy-grid { grid-template-columns: 1fr; }
  .academy-meta { flex-wrap: wrap; justify-content: center; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { order: -1; }

  .speaking-grid { grid-template-columns: 1fr; }
  .contact-details { flex-direction: column; align-items: center; gap: var(--spacing-md); }

  .footer-content { flex-direction: column; gap: var(--spacing-sm); text-align: center; }

  .about-facts { flex-wrap: wrap; justify-content: center; }
}