/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-color: #0B1416;
  --bg-darker: #070D0E;
  --fg-color: #D3DCD9;
  --fg-bright: #F0F5F3;
  --muted-fg: #769089;
  --accent-sage: #6D9E96;
  --accent-sage-glow: rgba(109, 158, 150, 0.25);
  --accent-sage-subtle: rgba(109, 158, 150, 0.12);
  --card-bg: #101B1E;
  --card-border: rgba(109, 158, 150, 0.18);
  --btn-bg: #6D9E96;
  --btn-fg: #0B1416;
  --btn-hover: #83B3AB;
  --font-sans: 'Space Grotesk', 'Plus Jakarta Sans', -apple-system, sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

html, body {
  min-height: 100vh;
  width: 100%;
  background-color: var(--bg-color);
  color: var(--fg-color);
  font-family: var(--font-sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background Blooms */
.bloom {
  position: absolute;
  pointer-events: none;
  z-index: 1;
}

.bloom-top {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 500px;
  background: radial-gradient(ellipse at 50% 0%, rgba(109, 158, 150, 0.15) 0%, rgba(11, 20, 22, 0) 70%);
}

.bloom-c {
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse at 50% 50%, rgba(109, 158, 150, 0.08) 0%, rgba(11, 20, 22, 0) 75%);
}

.ambient-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(109, 158, 150, 0.06) 0%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
  z-index: 2;
  transform: translate(-50%, -50%);
  transition: opacity 0.5s ease;
  top: 50%;
  left: 50%;
}

/* Main Site Wrapper */
.site-wrapper {
  position: relative;
  z-index: 10;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  padding: 2rem 0;
  width: 100%;
}

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

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--fg-color);
  transition: opacity 0.2s ease;
}

.brand-link:hover {
  opacity: 0.85;
}

.brand-logo {
  width: 2.25rem;
  height: 1.7rem;
  color: var(--fg-color);
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  background-color: var(--btn-bg);
  color: var(--btn-fg);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  text-decoration: none;
}

.btn-primary:hover {
  background-color: var(--btn-hover);
  box-shadow: 0 0 20px var(--accent-sage-glow);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  background-color: transparent;
  color: var(--fg-color);
  border: 1px solid var(--card-border);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 9999px;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.btn-secondary:hover {
  background-color: var(--accent-sage-subtle);
  border-color: var(--accent-sage);
}

.btn-lg {
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
  padding: 0.875rem;
}

/* Main Container */
.main-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6rem;
  padding: 3rem 0 6rem 0;
}

/* Hero Section */
.hero-section {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 46rem;
}

.hero-title {
  font-size: 2.75rem;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--fg-bright);
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 4rem;
  }
}

.hero-desc {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--muted-fg);
  font-weight: 400;
  max-width: 38rem;
}

@media (min-width: 640px) {
  .hero-desc {
    font-size: 1.25rem;
  }
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Desk Section */
.desk-section {
  width: 100%;
}

.desk-inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: lowercase;
  letter-spacing: 0.05em;
  color: var(--muted-fg);
}

/* Verbs Grid */
.verbs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .verbs {
    grid-template-columns: repeat(3, 1fr);
  }
}

.verb {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 1rem;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.verb:hover {
  border-color: var(--accent-sage);
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4), 0 0 15px var(--accent-sage-subtle);
}

.v-mark {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1.5rem;
}

.verb h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fg-bright);
  margin-bottom: 0.75rem;
}

.verb p {
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--muted-fg);
}

/* Ivy Section */
.ivy {
  margin-top: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 1rem;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}

@media (min-width: 640px) {
  .ivy {
    flex-direction: row;
    align-items: center;
    gap: 2rem;
  }
}

.ivy-avatar {
  width: 4.5rem;
  height: 3.5rem;
  background-color: var(--accent-sage);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ivy-logo {
  width: 2.75rem;
  height: 2.1rem;
}

.ivy-body h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg-bright);
  margin-bottom: 0.5rem;
}

.ivy-body p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--muted-fg);
  max-width: 40rem;
}

/* Footer */
.footer {
  padding: 3rem 0;
  border-top: 1px solid rgba(109, 158, 150, 0.12);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
  justify-content: space-between;
}

@media (min-width: 640px) {
  .footer {
    flex-direction: row;
    align-items: center;
  }
}

.foot-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.125rem;
}

.foot-logo {
  width: 1.75rem;
  height: 1.3rem;
}

.foot-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.foot-links a {
  color: var(--muted-fg);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.foot-links a:hover {
  color: var(--fg-bright);
}

.x-link {
  display: flex;
  align-items: center;
}

/* Animations */
.animate-item {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
  transition-delay: var(--delay, 0ms);
}

body.page-loaded .animate-item {
  opacity: 1;
  transform: translateY(0);
}

/* Modal & Drawer Styles */
.modal-overlay, .drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 13, 14, 0.85);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  animation: fadeIn 0.3s ease;
}

.modal-card, .drawer-card {
  position: relative;
  background: #0E1A1C;
  border: 1px solid var(--card-border);
  border-radius: 1.25rem;
  width: 100%;
  max-width: 32rem;
  padding: 2rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  font-size: 1.75rem;
  color: var(--muted-fg);
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s ease;
}

.modal-close:hover {
  color: var(--fg-bright);
}

.modal-header {
  margin-bottom: 1.5rem;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-sage);
  background: var(--accent-sage-subtle);
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

.modal-header h2 {
  font-size: 1.5rem;
  color: var(--fg-bright);
  margin-bottom: 0.375rem;
}

.modal-header p {
  font-size: 0.875rem;
  color: var(--muted-fg);
}

.app-calc-box {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-row label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-color);
}

.app-select, .app-input {
  width: 100%;
  height: 2.75rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  border-radius: 0.5rem;
  padding: 0 0.875rem;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--fg-bright);
  outline: none;
  transition: border-color 0.2s ease;
}

.app-select option {
  background: #0E1A1C;
  color: var(--fg-bright);
}

.app-select:focus, .app-input:focus {
  border-color: var(--accent-sage);
}

.calc-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 0.5rem 0;
}

.res-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 0.5rem;
  padding: 0.75rem;
  text-align: center;
}

.res-label {
  font-size: 0.75rem;
  color: var(--muted-fg);
  margin-bottom: 0.25rem;
}

.res-val {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--fg-bright);
}

.res-val.highlight {
  color: var(--accent-sage);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--btn-bg);
  color: var(--btn-fg);
  padding: 0.625rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s var(--ease-out);
  z-index: 200;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}