/* ==============================
   BASE
============================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: #fffdf8;
  color: #1a1a2e;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }

/* ==============================
   NAV
============================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,253,248,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
}
.nav-brand {
  display: flex; align-items: center; gap: 8px;
  font-family: 'Nunito', sans-serif;
  font-size: 1.3rem; font-weight: 900;
  color: #1a2e1a;
}
.brand-paw { font-size: 1.5rem; }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { font-size: 0.92rem; font-weight: 500; color: #4a5568; transition: color 0.15s; }
.nav-links a:hover { color: #2e7d32; }

/* ==============================
   BUTTONS
============================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border-radius: 10px; font-weight: 700; cursor: pointer; border: none;
  font-family: 'Nunito', sans-serif; transition: all 0.18s; white-space: nowrap;
}
.btn-ghost {
  background: transparent; color: #2e7d32;
  padding: 8px 16px; font-size: 0.88rem;
}
.btn-ghost:hover { background: #e8f5e9; }
.btn-primary-sm {
  background: #2e7d32; color: #fff;
  padding: 8px 18px; font-size: 0.88rem;
}
.btn-primary-sm:hover { background: #1b5e20; transform: translateY(-1px); }
.btn-hero {
  background: #2e7d32; color: #fff;
  padding: 16px 32px; font-size: 1.05rem;
  border-radius: 14px; box-shadow: 0 6px 24px rgba(46,125,50,0.3);
}
.btn-hero:hover { background: #1b5e20; transform: translateY(-2px); box-shadow: 0 10px 30px rgba(46,125,50,0.35); }
.btn-hero:active { transform: translateY(0); }
.btn-hero-ghost {
  background: transparent; color: #2e7d32;
  padding: 15px 28px; font-size: 1.0rem;
  border: 2px solid #2e7d32; border-radius: 14px;
}
.btn-hero-ghost:hover { background: #e8f5e9; }
.btn-form-primary {
  width: 100%; background: #2e7d32; color: #fff;
  padding: 14px; font-size: 1rem; border-radius: 10px;
  margin-top: 6px; position: relative; overflow: hidden;
}
.btn-form-primary:hover { background: #1b5e20; transform: translateY(-1px); }
.btn-form-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ==============================
   HERO
============================== */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
  max-width: 1100px; margin: 0 auto;
  padding: 100px 24px 60px;
  position: relative;
}
.hero-bg {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.hero-blob {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.35;
}
.blob-1 { width: 500px; height: 500px; background: #a5d6a7; top: -120px; left: -120px; }
.blob-2 { width: 400px; height: 400px; background: #c8e6c9; top: 30%; right: -100px; }
.blob-3 { width: 300px; height: 300px; background: #fff9c4; bottom: 5%; left: 25%; }
.fp {
  position: absolute; font-size: 2rem; opacity: 0.12;
  animation: floatPaw 8s ease-in-out infinite;
}
.fp1 { top: 10%; left: 5%; animation-delay: 0s; }
.fp2 { top: 25%; right: 10%; animation-delay: 1.5s; }
.fp3 { top: 55%; left: 3%; animation-delay: 3s; }
.fp4 { bottom: 15%; right: 5%; animation-delay: 4.5s; }
.fp5 { bottom: 30%; left: 40%; animation-delay: 2s; }
@keyframes floatPaw {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-18px) rotate(12deg); }
}
.hero-content, .hero-mockup { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: #e8f5e9; color: #2e7d32;
  padding: 6px 14px; border-radius: 20px;
  font-size: 0.82rem; font-weight: 700;
  margin-bottom: 18px; font-family: 'Nunito', sans-serif;
}
.hero-title {
  font-family: 'Nunito', sans-serif;
  font-size: 3rem; font-weight: 900;
  line-height: 1.15; color: #1a2e1a;
  margin-bottom: 18px;
}
.hero-title .highlight {
  color: #2e7d32;
  background: linear-gradient(135deg, #2e7d32, #66bb6a);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-sub {
  font-size: 1.05rem; color: #4a5568; line-height: 1.7;
  margin-bottom: 28px; max-width: 480px;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.hero-note { font-size: 0.82rem; color: #718096; font-weight: 500; }

/* PHONE MOCKUP */
.hero-mockup { display: flex; justify-content: center; }
.mockup-phone {
  width: 240px;
  background: #1a1a1a;
  border-radius: 36px;
  padding: 12px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.25), 0 0 0 2px #333;
  animation: phoneFloat 4s ease-in-out infinite;
}
@keyframes phoneFloat {
  0%,100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-12px) rotate(-2deg); }
}
.mockup-screen {
  background: #fff;
  border-radius: 26px;
  overflow: hidden;
  height: 400px;
  display: flex; flex-direction: column;
}
.mock-top {
  background: #1a2e1a; padding: 8px 16px;
  font-size: 0.7rem; color: #fff; font-weight: 700; text-align: right;
}
.mock-map {
  flex: 1; background: #e8f5e9; position: relative; overflow: hidden;
}
.mock-map-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(46,125,50,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,125,50,0.08) 1px, transparent 1px);
  background-size: 20px 20px;
}
.mock-route-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.mock-label {
  position: absolute; bottom: 8px; left: 10px;
  font-size: 1rem;
}
.mock-stats {
  display: flex; justify-content: space-around;
  padding: 8px 10px; background: #fff;
  border-top: 1px solid #f0f2f5;
}
.mock-stat { text-align: center; }
.ms-val { font-size: 0.85rem; font-weight: 800; color: #1a2e1a; font-family: 'Nunito', sans-serif; }
.ms-lbl { font-size: 0.6rem; color: #718096; }
.live-dot { color: #f44336; animation: blink 1s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.2} }
.mock-dog {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; background: #f7faf7;
  border-top: 1px solid #e8f5e9;
}
.mock-dog-dot {
  width: 30px; height: 30px; border-radius: 50%;
  background: #a5d6a7; color: #1a2e1a;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.8rem; flex-shrink: 0;
}
.mock-dog-name { font-weight: 800; font-size: 0.75rem; }
.mock-dog-breed { font-size: 0.6rem; color: #718096; }
.mock-finish {
  margin-left: auto; background: #f44336; color: #fff;
  border: none; border-radius: 8px;
  padding: 4px 10px; font-size: 0.68rem; font-weight: 700;
  cursor: pointer;
}

/* ==============================
   FEATURES
============================== */
.features {
  background: #fff;
  padding: 80px 24px;
  position: relative; z-index: 1;
}
.container { max-width: 1100px; margin: 0 auto; }
.section-label {
  text-align: center; font-size: 0.8rem; font-weight: 700;
  color: #2e7d32; text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.section-title {
  text-align: center; font-family: 'Nunito', sans-serif;
  font-size: 2.2rem; font-weight: 900; color: #1a2e1a;
  margin-bottom: 48px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: #fffdf8; border-radius: 16px;
  padding: 28px 24px;
  border: 1.5px solid #e8f5e9;
  transition: transform 0.18s, box-shadow 0.18s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 10px 30px rgba(46,125,50,0.1); }
.feature-icon { font-size: 2rem; margin-bottom: 14px; }
.feature-card h3 {
  font-family: 'Nunito', sans-serif; font-size: 1.05rem;
  font-weight: 800; color: #1a2e1a; margin-bottom: 8px;
}
.feature-card p { font-size: 0.88rem; color: #4a5568; line-height: 1.65; }

/* ==============================
   AUTH MODAL
============================== */
.auth-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}
.auth-overlay.hidden { display: none; }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
.auth-box {
  background: #fff; border-radius: 20px;
  width: 100%; max-width: 420px;
  padding: 32px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.2);
  position: relative;
  animation: modalIn 0.22s ease;
  max-height: 90vh; overflow-y: auto;
}
@keyframes modalIn {
  from { transform: scale(0.92) translateY(20px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}
.auth-close {
  position: absolute; top: 14px; right: 14px;
  background: #f0f2f5; border: none; border-radius: 50%;
  width: 32px; height: 32px; cursor: pointer;
  font-size: 0.9rem; color: #718096;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.auth-close:hover { background: #e2e8f0; color: #2d3748; }
.auth-tabs {
  display: flex; gap: 0; margin-bottom: 24px;
  background: #f0f2f5; border-radius: 10px; padding: 4px;
}
.auth-tab {
  flex: 1; padding: 8px; border: none; background: transparent;
  border-radius: 8px; font-family: 'Nunito', sans-serif;
  font-weight: 700; font-size: 0.9rem; color: #718096;
  cursor: pointer; transition: all 0.15s;
}
.auth-tab.active { background: #fff; color: #2e7d32; box-shadow: 0 1px 4px rgba(0,0,0,0.1); }
.auth-brand {
  display: flex; align-items: center; gap: 8px;
  font-family: 'Nunito', sans-serif; font-size: 1.2rem; font-weight: 900;
  color: #1a2e1a; margin-bottom: 22px;
}
.auth-form { display: flex; flex-direction: column; gap: 0; }
.auth-form.hidden { display: none; }
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.form-group label { font-size: 0.83rem; font-weight: 700; color: #4a5568; }
.label-hint { font-weight: 400; color: #a0aec0; }
.form-group input {
  padding: 11px 14px; border: 1.5px solid #e2e8f0;
  border-radius: 10px; font-size: 0.95rem; font-family: 'Inter', sans-serif;
  background: #fafafa; color: #2d3748;
  transition: border-color 0.15s, background 0.15s;
}
.form-group input:focus { outline: none; border-color: #4caf50; background: #fff; }
.auth-error {
  background: #ffebee; color: #c62828;
  border-radius: 8px; padding: 10px 14px;
  font-size: 0.84rem; font-weight: 600;
  margin-bottom: 12px;
}
.auth-success {
  background: #e8f5e9; color: #2e7d32;
  border-radius: 8px; padding: 10px 14px;
  font-size: 0.84rem; font-weight: 600;
  margin-bottom: 12px;
}
.auth-error.hidden, .auth-success.hidden { display: none; }
.auth-switch { font-size: 0.84rem; color: #718096; text-align: center; margin-top: 14px; }
.auth-switch a { color: #2e7d32; font-weight: 700; }
.auth-switch a:hover { text-decoration: underline; }
.spinner {
  display: inline-block; width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,0.35);
  border-top-color: #fff; border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-left: 6px; vertical-align: middle;
}
.spinner.hidden { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ==============================
   FOOTER
============================== */
.footer {
  background: #1a2e1a; color: #e8f5e9;
  padding: 40px 24px; text-align: center;
  position: relative; z-index: 1;
}
.footer-brand {
  font-family: 'Nunito', sans-serif; font-size: 1.3rem; font-weight: 900;
  margin-bottom: 8px;
}
.footer-note { font-size: 0.85rem; color: #a5c8a5; }

/* ==============================
   RESPONSIVE
============================== */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 90px; gap: 50px; }
  .hero-title { font-size: 2.2rem; }
  .hero-mockup { order: -1; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .features-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 1.8rem; }
  .hero-cta { flex-direction: column; }
  .auth-box { margin: 0 12px; padding: 22px 18px; }
  .nav-links .btn-ghost { display: none; }
}