/* ============================================================
   PSI PHI LLC — MAIN STYLESHEET
   Single source of truth for design tokens & shared components.
   ============================================================ */

/* ---------- DESIGN TOKENS ---------- */
:root {
  --purple: #7B5AA6;
  --purple-dark: #6B4A96;
  --purple-darker: #5A4080;
  --green: #2D8659;
  --dark: #333333;
  --gray: #666666;
  --gray-light: #888888;
  --light-gray: #F9F9F9;
  --rule: #e4e0eb;
  --white: #FFFFFF;
  --max-width: 1100px;
  --section-padding: 100px 24px;
  --nav-height: 72px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 15px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.1);
  --shadow-purple: 0 4px 15px rgba(123, 90, 166, 0.3);
}

/* ---------- RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--dark);
  line-height: 1.6;
  background: var(--white);
}
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* ---------- NAVIGATION ---------- */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: var(--white);
  padding: 16px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  z-index: 1000;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo-svg { width: 32px; height: 40px; }
.nav-logo span {
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--purple);
}
.nav-links {
  display: flex;
  gap: 32px;
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--dark);
  margin: 5px 0;
  transition: 0.3s;
}

/* Dropdown */
.dropdown { position: relative; }
.dropdown-toggle {
  color: var(--gray);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  font-family: inherit;
  transition: color 0.2s;
}
.dropdown-toggle:hover { color: var(--purple); }
.dropdown-toggle::after {
  content: "";
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform 0.2s;
}
.dropdown:hover .dropdown-toggle::after { transform: rotate(180deg); }
.dropdown-menu {
  position: absolute;
  top: 100%; left: 0;
  background: white;
  min-width: 220px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s;
  margin-top: 10px;
  white-space: nowrap;
}
.dropdown-menu.align-right { left: auto; right: 0; }
.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 10px 20px;
  color: var(--gray);
  font-size: 0.9rem;
  transition: all 0.15s;
}
.dropdown-menu a:hover {
  background: #f5f0fa;
  color: var(--purple);
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-family: inherit;
}
.btn-primary {
  background: var(--purple);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--purple-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-purple);
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--purple);
  color: var(--purple);
}
.btn-outline:hover {
  background: var(--purple);
  color: var(--white);
}
.btn-on-purple {
  background: var(--white);
  color: var(--purple);
}
.btn-on-purple:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
}

/* ---------- LAYOUT HELPERS ---------- */
section { padding: var(--section-padding); }
.container { max-width: var(--max-width); margin: 0 auto; }
.section-title {
  font-size: 2rem;
  font-weight: 400;
  color: var(--dark);
  text-align: center;
  margin-bottom: 50px;
}

/* ---------- HERO (index) ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 140px 24px 100px;
  background: linear-gradient(135deg, #f8f6fc 0%, #f0fdf4 100%);
}
.hero-logo { width: 120px; height: 150px; margin-bottom: 32px; }
.hero h1 {
  font-size: 2.75rem;
  font-weight: 300;
  color: var(--dark);
  max-width: 700px;
  margin-bottom: 20px;
  line-height: 1.25;
}
.hero p {
  font-size: 1.25rem;
  color: var(--gray);
  max-width: 600px;
  margin-bottom: 36px;
}

/* ---------- PROBLEM GRID (index) ---------- */
.problem { background: var(--white); }
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}
.problem-item {
  padding: 24px;
  background: var(--light-gray);
  border-radius: 8px;
  border-left: 4px solid var(--purple);
}
.problem-item p { color: var(--gray); font-size: 1rem; }

/* ---------- SERVICES (index) ---------- */
.services { background: var(--light-gray); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--white);
  padding: 32px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: all 0.2s;
  display: block;
  color: inherit;
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.service-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--purple) 0%, var(--green) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}
.service-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 12px;
}
.service-card p {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ---------- PROCESS (index) ---------- */
.process { background: var(--white); }
.process-steps {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.step {
  text-align: center;
  flex: 1;
  min-width: 250px;
  max-width: 320px;
}
.step-number {
  width: 64px; height: 64px;
  background: var(--purple);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 auto 20px;
}
.step h3 { font-size: 1.25rem; font-weight: 600; color: var(--dark); margin-bottom: 10px; }
.step p { color: var(--gray); font-size: 0.95rem; }

/* ---------- ABOUT (index) ---------- */
.about {
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-darker) 100%);
  color: var(--white);
}
.about-content {
  display: flex;
  gap: 48px;
  align-items: center;
  flex-wrap: wrap;
}
.about-photo {
  width: 250px; height: 250px;
  border-radius: 50%;
  flex-shrink: 0;
  overflow: hidden;
  border: 4px solid rgba(255, 255, 255, 0.3);
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 15%; }
.about-text { flex: 1; min-width: 300px; }
.about-text h2 { font-size: 2rem; font-weight: 400; margin-bottom: 20px; }
.about-text p { font-size: 1.1rem; opacity: 0.95; margin-bottom: 16px; line-height: 1.7; }

/* ---------- RESULTS (index) ---------- */
.results {
  background: linear-gradient(135deg, #f0fdf4 0%, #e8f5e9 100%);
  padding: 80px 24px;
}
.results-grid {
  display: flex;
  justify-content: center;
  gap: 64px;
  flex-wrap: wrap;
}
.result-item { text-align: center; }
.result-item .number {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}
.result-item p { color: var(--gray); font-size: 0.95rem; margin-top: 8px; }

/* ---------- CTA ---------- */
.cta {
  background: var(--white);
  text-align: center;
}
.cta h2 {
  font-size: 2.25rem;
  font-weight: 400;
  color: var(--dark);
  margin-bottom: 16px;
}
.cta p {
  font-size: 1.15rem;
  color: var(--gray);
  margin-bottom: 32px;
}
.cta-alt {
  margin-top: 20px;
  color: var(--gray);
  font-size: 0.95rem;
}
.cta-alt a {
  color: var(--purple);
  font-weight: 500;
}
.cta-alt a:hover { text-decoration: underline; }

/* CTA on purple background (services page) */
.cta-purple {
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-darker) 100%);
  color: var(--white);
  text-align: center;
  padding: var(--section-padding);
}
.cta-purple h2 { font-size: 2rem; margin-bottom: 15px; font-weight: 400; }
.cta-purple p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 30px; }
.cta-purple .cta-alt { color: rgba(255,255,255,0.85); }

/* ---------- CONTACT FORM ---------- */
.contact-form {
  background: var(--light-gray);
  padding: 60px 24px 80px;
}
.form-container {
  max-width: 650px;
  margin: 0 auto;
}
.contact-form iframe {
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

/* ---------- SERVICES PAGE ---------- */
.page-header {
  padding: 160px 24px 80px;
  text-align: center;
  background: linear-gradient(135deg, #f8f6fc 0%, #f0fdf4 100%);
}
.page-header h1 {
  font-size: 2.75rem;
  font-weight: 300;
  margin-bottom: 20px;
  color: var(--dark);
}
.page-header .subtitle {
  font-size: 1.2rem;
  color: var(--gray);
  max-width: 700px;
  margin: 0 auto 30px;
}
.disclaimer {
  background: white;
  border-left: 4px solid var(--purple);
  padding: 20px 30px;
  max-width: 800px;
  margin: 0 auto;
  text-align: left;
  font-size: 0.95rem;
  color: #555;
  border-radius: 0 8px 8px 0;
  box-shadow: var(--shadow-sm);
}
.service-section {
  padding: 80px 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.service-section.alt-bg {
  background: var(--light-gray);
  max-width: 100%;
}
.service-section.alt-bg .service-content {
  max-width: 1000px;
  margin: 0 auto;
}
.service-section h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 30px;
  color: var(--dark);
}
.service-section h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 30px 0 12px;
  color: var(--dark);
}
.service-section p { color: #555; font-size: 1rem; margin-bottom: 15px; }
.service-section ul { list-style: none; padding: 0; margin: 0 0 20px 0; }
.service-section li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: #555;
}
.service-section li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--purple);
  font-weight: 600;
}
.engagement-structure {
  background: var(--white);
  border-radius: 12px;
  padding: 30px;
  margin: 30px 0;
  box-shadow: var(--shadow-sm);
}
.engagement-structure h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--purple);
  margin-bottom: 20px;
}
.phase { margin-bottom: 25px; }
.phase:last-child { margin-bottom: 0; }
.phase-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.phase-number {
  background: var(--purple);
  color: white;
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
}
.phase-title { font-weight: 600; color: var(--dark); }
.phase-desc { margin-left: 40px; color: var(--gray); font-size: 0.95rem; }
.paths-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 20px 0 0 40px;
}
.path-card { border-radius: 10px; padding: 20px; }
.path-card.streamlined { background: #f5f5f5; }
.path-card.power { background: #f0f7f3; }
.path-card.premium { background: #f8f6fb; }
.path-name { font-weight: 600; color: var(--dark); margin-bottom: 8px; }
.path-desc { font-size: 0.9rem; color: #555; }

/* ---------- SIGNED PAGE ---------- */
.signed-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 60px;
  background: var(--light-gray);
  position: relative;
}
.signed-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 10%, rgba(123,90,166,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 90%, rgba(45,134,89,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.signed-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 8px;
  max-width: 540px;
  width: 100%;
  padding: 3.5rem 3rem;
  text-align: center;
  box-shadow: 0 2px 40px rgba(123,90,166,0.07), 0 1px 4px rgba(0,0,0,0.04);
  animation: rise 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.signed-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--purple), var(--green));
  border-radius: 8px 8px 0 0;
}
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
.signed-checkmark {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(45,134,89,0.1);
  border: 1.5px solid rgba(45,134,89,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  animation: pop 0.5s 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes pop { from { opacity: 0; transform: scale(0.6); } to { opacity: 1; transform: scale(1); } }
.signed-checkmark svg {
  width: 24px; height: 24px;
  stroke: var(--green);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: draw 0.4s 0.6s ease forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }
.signed-card h1 {
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--dark);
  margin-bottom: 1rem;
}
.signed-card .subtitle {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--gray);
  line-height: 1.65;
  margin-bottom: 2rem;
}
.signed-card hr { border: none; border-top: 1px solid var(--rule); margin: 2rem 0; }
.next-steps { font-size: 0.88rem; color: var(--gray); line-height: 1.7; }
.next-steps strong {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dark);
  margin-bottom: 0.5rem;
}
.signed-contact { margin-top: 2rem; font-size: 0.85rem; color: var(--gray); }
.signed-contact a { color: var(--purple); border-bottom: 1px solid rgba(123,90,166,0.25); transition: border-color 0.2s; }
.signed-contact a:hover { border-color: var(--purple); }
.redirect-notice { margin-top: 1.75rem; font-size: 0.78rem; color: var(--gray-light); }
.redirect-notice a { color: var(--purple); border-bottom: 1px solid rgba(123,90,166,0.25); }

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--dark);
  color: #aaa;
  text-align: center;
  padding: 40px 24px;
}
.site-footer p { margin-bottom: 12px; font-size: 0.9rem; }
.site-footer a {
  color: #aaa;
  margin: 0 12px;
  transition: color 0.2s;
}
.site-footer a:hover { color: var(--white); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {
  .site-nav { padding: 16px 24px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  }
  .nav-links.active { display: flex; }
  .nav-toggle { display: block; }

  .dropdown { width: 100%; border-bottom: 1px solid #eee; }
  .dropdown:last-child { border-bottom: none; }
  .dropdown-toggle { width: 100%; padding: 15px 0; justify-content: space-between; }
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    margin-top: 0;
    display: none;
    padding: 0 0 15px 20px;
    min-width: auto;
  }
  .dropdown.active .dropdown-menu { display: block; }
  .dropdown-menu a { padding: 10px 0; }

  .hero { padding: 120px 24px 80px; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1.1rem; }
  .section-title { font-size: 1.6rem; }
  .process-steps { gap: 32px; }
  .about-content { flex-direction: column; text-align: center; }
  .about-photo { margin: 0 auto; }
  .results-grid { gap: 40px; }
  .cta h2, .cta-purple h2 { font-size: 1.75rem; }

  .page-header { padding: 120px 20px 60px; }
  .page-header h1 { font-size: 2rem; }
  .disclaimer { padding: 15px 20px; font-size: 0.9rem; }
  .service-section { padding: 60px 20px; }
  .service-section h2 { font-size: 1.5rem; }
  .paths-container { grid-template-columns: 1fr; margin-left: 0; }

  .signed-card { padding: 2.5rem 1.75rem; }
}

@media (max-width: 480px) {
  :root { --section-padding: 60px 20px; }
  .hero h1 { font-size: 1.75rem; }
  .services-grid { grid-template-columns: 1fr; }
  .result-item .number { font-size: 2.5rem; }
}