/* ==========================================================================
   findiplocations.com — CSS Design System
   Inspired by atlas.sequoiacap.com
   ========================================================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,100..900;1,9..144,100..900&family=Inter+Tight:ital,wght@0,100..900;1,100..900&family=Space+Mono:ital,wght@0,400;0,700;1,400;1,700&display=swap');

:root {
  /* Color Palette */
  --bg-color: #F9F8F3;         /* Premium cream/off-white */
  --fg-color: #1B1917;         /* Very dark brown/black for body copy */
  --navy-color: #132B4F;       /* Deep navy blue from logo text for headings */
  --accent-color: #0A6847;     /* Clean, premium forest green for interactive cues */
  --accent-hover: #074F35;
  --border-color: #AEADA9;     /* Thin grid borders */
  --muted-color: #7A756F;      /* Muted text/labels */
  --white: #FFFFFF;
  
  /* Layout & Spacing */
  --border-width: 1px;
  --header-height: 80px;
  
  /* Fonts */
  --font-display: 'Fraunces', serif;
  --font-body: 'Inter Tight', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

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

html {
  font-size: 62.5%; /* 1rem = 10px */
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-color);
  color: var(--fg-color);
  font-family: var(--font-body);
  font-size: 1.6rem;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Focus States */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 4px;
}

/* Typography Hierarchy */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy-color);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(3.6rem, 5vw, 6.4rem);
  margin-bottom: 2rem;
}

h2 {
  font-size: clamp(2.8rem, 4vw, 4.4rem);
  margin-bottom: 1.5rem;
}

h3 {
  font-size: clamp(2rem, 3vw, 2.8rem);
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1.6rem;
  color: var(--fg-color);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

/* Page Frame / Grid Borders */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 4rem;
}

@media (max-width: 768px) {
  .container {
    padding: 0 2.4rem;
  }
}

/* Header */
.site-header {
  height: var(--header-height);
  border-bottom: var(--border-width) solid var(--border-color);
  background-color: var(--bg-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
}

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

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

.logo-img {
  height: 4.5px; /* Scaled cleanly */
  height: 45px;
  width: auto;
  object-fit: contain;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 3.2rem;
}

.main-nav a {
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--fg-color);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent-color);
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--fg-color);
  margin: 5px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  border-bottom: var(--border-width) solid var(--border-color);
  padding: 6rem 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 6rem;
  align-items: center;
}

.hero-left {
  display: flex;
  flex-direction: column;
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: 1.4rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-color);
  letter-spacing: 0.1em;
  margin-bottom: 1.6rem;
}

.hero-description {
  font-size: 1.8rem;
  line-height: 1.6;
  color: var(--muted-color);
  max-width: 580px;
  margin-bottom: 3.2rem;
}

/* IP Search Bar */
.search-container {
  margin-bottom: 2rem;
}

.search-form {
  display: flex;
  max-width: 600px;
  border: var(--border-width) solid var(--border-color);
  background: var(--bg-color);
  padding: 0.4rem;
  border-radius: 4px;
  transition: border-color 0.2s ease;
}

.search-form:focus-within {
  border-color: var(--navy-color);
}

.search-input {
  flex-grow: 1;
  border: none;
  background: transparent;
  padding: 1.2rem 1.6rem;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  color: var(--fg-color);
  width: 100%;
}

.search-input::placeholder {
  color: var(--muted-color);
}

.search-input:focus {
  outline: none;
}

.search-button {
  background-color: var(--navy-color);
  color: var(--white);
  border: none;
  padding: 1.2rem 2.4rem;
  font-family: var(--font-body);
  font-size: 1.4rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  border-radius: 2px;
  transition: background-color 0.2s ease;
}

.search-button:hover {
  background-color: var(--accent-color);
}

.user-ip-status {
  font-family: var(--font-body);
  font-size: 1.4rem;
  color: var(--muted-color);
}

.user-ip-link {
  font-family: var(--font-mono);
  font-weight: 600;
  border-bottom: 1px dotted var(--accent-color);
}

/* Globe Visual */
.hero-right {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.globe-wrapper {
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: var(--border-width) solid rgba(174, 173, 169, 0.3);
  position: relative;
  overflow: hidden;
}

.globe-canvas {
  width: 100%;
  height: 100%;
  cursor: grab;
}

.globe-canvas:active {
  cursor: grabbing;
}

/* Results section (numbered list table) */
.results-section {
  padding: 8rem 0;
  border-bottom: var(--border-width) solid var(--border-color);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 4.8rem;
  border-bottom: var(--border-width) solid var(--border-color);
  padding-bottom: 2.4rem;
}

.section-title-area {
  max-width: 600px;
}

.section-number {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--accent-color);
  display: block;
  margin-bottom: 0.8rem;
}

.section-intro {
  font-size: 1.6rem;
  color: var(--muted-color);
  margin-bottom: 0;
}

/* Numbered List Table (Sequoia Style) */
.data-table-container {
  width: 100%;
}

.data-row {
  display: grid;
  grid-template-columns: 0.1fr 0.8fr 1.5fr 1.6fr;
  padding: 2rem 0;
  border-bottom: var(--border-width) solid rgba(174, 173, 169, 0.5);
  font-size: 1.6rem;
  align-items: center;
}

.data-row:first-of-type {
  border-top: var(--border-width) solid var(--border-color);
}

.data-num {
  font-family: var(--font-mono);
  color: var(--muted-color);
  font-size: 1.4rem;
}

.data-label {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--navy-color);
}

.data-value {
  font-family: var(--font-mono);
  color: var(--fg-color);
}

.data-confidence-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.confidence-track {
  width: 120px;
  height: 4px;
  background-color: rgba(174, 173, 169, 0.2);
  position: relative;
  overflow: hidden;
}

.confidence-fill {
  height: 100%;
  background-color: var(--accent-color);
  width: 0%;
  transition: width 1s cubic-bezier(0.1, 0.8, 0.3, 1);
}

/* Map Section */
.map-section {
  padding: 8rem 0;
  border-bottom: var(--border-width) solid var(--border-color);
}

.map-wrapper {
  position: relative;
  border: var(--border-width) solid var(--border-color);
  background-color: #E5E3DF; /* Leaflet background placeholder */
  border-radius: 4px;
  overflow: hidden;
}

#map {
  width: 100%;
  height: 550px;
  z-index: 1;
}

.map-controls-overlay {
  position: absolute;
  top: 2rem;
  right: 2rem;
  z-index: 100;
  display: flex;
  gap: 1rem;
}

.btn-toggle {
  background-color: var(--bg-color);
  border: var(--border-width) solid var(--border-color);
  padding: 0.8rem 1.6rem;
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 600;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 2px;
}

.btn-toggle.active {
  background-color: var(--navy-color);
  color: var(--white);
  border-color: var(--navy-color);
}

/* Accordion Section - Network Tools */
.tools-section {
  padding: 8rem 0;
  border-bottom: var(--border-width) solid var(--border-color);
}

.accordion-group {
  margin-top: 4rem;
}

.accordion-item {
  border-bottom: var(--border-width) solid var(--border-color);
}

.accordion-item:first-of-type {
  border-top: var(--border-width) solid var(--border-color);
}

.accordion-header {
  width: 100%;
  background: none;
  border: none;
  display: grid;
  grid-template-columns: 0.1fr 0.8fr 1.1fr;
  padding: 2.4rem 0;
  text-align: left;
  cursor: pointer;
  align-items: center;
  transition: background-color 0.2s ease;
}

.accordion-header:hover {
  background-color: rgba(27, 25, 23, 0.02);
}

.acc-num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--muted-color);
}

.acc-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--navy-color);
  font-weight: 500;
}

.acc-arrow {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 2.2rem;
  color: var(--navy-color);
  transition: transform 0.3s cubic-bezier(0.1, 0.8, 0.3, 1);
}

.accordion-item.active .acc-arrow {
  transform: rotate(90deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.1, 0.8, 0.3, 1);
  background-color: rgba(27, 25, 23, 0.01);
}

.accordion-content-inner {
  padding: 0 0 3.2rem 0;
}

.tool-input-row {
  display: flex;
  gap: 1.6rem;
  margin-bottom: 2.4rem;
  max-width: 600px;
  width: 100%;
}

.tool-input {
  flex-grow: 1;
  border: var(--border-width) solid var(--border-color);
  background: var(--bg-color);
  padding: 1.2rem;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  border-radius: 4px;
}

.tool-button {
  background-color: var(--navy-color);
  color: var(--white);
  border: none;
  padding: 1.2rem 2.4rem;
  font-family: var(--font-body);
  font-size: 1.4rem;
  font-weight: 600;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 2px;
  transition: background-color 0.2s ease;
}

.tool-button:hover {
  background-color: var(--accent-color);
}

.tool-results {
  background-color: #1e1e24;
  color: #a6accd;
  padding: 2.4rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  line-height: 1.6;
  white-space: pre-wrap;
  max-height: 350px;
  overflow-y: auto;
  border: var(--border-width) solid #31313a;
}

/* Footer */
.site-footer {
  padding: 8rem 0 4rem;
  background-color: var(--navy-color);
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-body);
}

.site-footer h4 {
  color: var(--white);
  font-family: var(--font-body);
  text-transform: uppercase;
  font-size: 1.4rem;
  letter-spacing: 0.1em;
  margin-bottom: 2.4rem;
  font-weight: 600;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 6rem;
  margin-bottom: 6rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 6rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.footer-logo-img {
  height: 40px;
  width: auto;
  align-self: flex-start;
  filter: brightness(0) invert(1); /* Flip color scheme to work on dark background */
}

.footer-desc {
  font-size: 1.5rem;
  line-height: 1.6;
  max-width: 320px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.5rem;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.4rem;
}

.footer-legal-links {
  display: flex;
  gap: 2.4rem;
}

.footer-legal-links a {
  color: rgba(255, 255, 255, 0.5);
}

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

/* Animations */
@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Media Queries & Responsive Adaptations */
@media (max-width: 1024px) {
  .hero-grid {
    gap: 4rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 70px;
  }
  
  .main-nav {
    display: none; /* Mobile nav burger trigger */
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  /* Make menu slide down when open */
  .main-nav.open {
    display: block;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--bg-color);
    border-bottom: var(--border-width) solid var(--border-color);
    padding: 2.4rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
  }
  
  .main-nav.open ul {
    flex-direction: column;
    gap: 2rem;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
    text-align: left;
  }
  
  .hero-right {
    order: -1; /* Place globe on top on tablet/mobile for flow */
  }
  
  .globe-wrapper {
    width: 280px;
    height: 280px;
  }
  
  .data-row {
    grid-template-columns: 0.1fr 1fr 1.5fr;
    font-size: 1.5rem;
  }
  
  .data-confidence-bar {
    display: none; /* Hide bar chart on tablets/mobile to keep table narrow */
  }
  
  .accordion-header {
    grid-template-columns: 0.1fr 1.2fr 0.3fr;
  }
  
  .acc-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 580px) {
  .data-row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
    padding: 1.6rem 0;
  }
  
  .data-num {
    display: inline-block;
    margin-bottom: 0.4rem;
    font-size: 1.2rem;
  }
  
  .data-label {
    font-size: 1.4rem;
    color: var(--muted-color);
  }
  
  .data-value {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
  }
  
  .accordion-header {
    grid-template-columns: 1fr 0.1fr;
  }
  
  .acc-num {
    display: none;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 2rem;
    align-items: flex-start;
  }
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  .globe-wrapper {
    animation: none;
  }
  
  .accordion-content {
    transition: none;
  }
}