/* PrimeOffer.ai — Static Landing Page Design System
   Matches Flutter AppColors + AppTheme for visual consistency */

/* ── Design Tokens ── */
:root {
  /* Primary — matched to logo colors */
  --color-primary: #0E4B6C;
  --color-primary-dark: #0A3B56;
  --color-secondary: #196C95;
  --color-secondary-light: #218DB6;
  --color-teal: #00A39C;
  --color-teal-dark: #008B85;

  /* Accent */
  --color-accent: #FFA611;
  --color-accent-light: #FFCB2B;

  /* Semantic */
  --color-success: #1E8E3E;
  --color-error: #D93025;
  --color-warning: #F9AB00;

  /* Neutrals */
  --color-neutral-900: #202124;
  --color-neutral-800: #3C4043;
  --color-neutral-700: #5F6368;
  --color-neutral-600: #80868B;
  --color-neutral-500: #9AA0A6;
  --color-neutral-400: #BDC1C6;
  --color-neutral-300: #DADCE0;
  --color-neutral-200: #E8EAED;
  --color-neutral-100: #F1F3F4;
  --color-neutral-50: #F8F9FA;
  --color-white: #FFFFFF;

  /* Spacing */
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-40: 40px;
  --space-48: 48px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(60,64,67,0.12);
  --shadow-md: 0 2px 8px rgba(60,64,67,0.15);
  --shadow-lg: 0 4px 16px rgba(60,64,67,0.18);

  /* Typography */
  --font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  color: var(--color-neutral-900);
  background: var(--color-neutral-50);
  line-height: 1.5;
  overflow-x: hidden;
}

/* ── Sections: only one visible at a time ── */
#app-init, #app-auth, #app-loading { display: none; }
#app-init.active, #app-auth.active, #app-loading.active { display: flex; }

/* ── Init Spinner ── */
#app-init {
  position: fixed; inset: 0;
  align-items: center; justify-content: center;
  background: var(--color-neutral-50);
  z-index: 100;
}
.init-spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--color-neutral-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Auth Container (landing/login/register/reset) ── */
#app-auth {
  min-height: 100vh;
  flex-direction: row;
}

/* Left panel — gradient hero (desktop only) */
.auth-hero {
  flex: 1;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-48);
  position: relative;
  overflow: hidden;
}
.auth-hero::after {
  content: '';
  position: absolute;
  top: -40%; right: -20%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-logo {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: var(--space-48);
  display: flex;
  align-items: center;
  gap: var(--space-12);
}
.hero-logo img { height: 32px; width: auto; }
.hero-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-16);
}
.hero-subtitle {
  font-size: 18px;
  opacity: 0.85;
  margin-bottom: var(--space-40);
  max-width: 440px;
}
.hero-features { list-style: none; }
.hero-features li {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  font-size: 15px;
  opacity: 0.9;
  margin-bottom: var(--space-16);
}
.hero-features li::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px; height: 24px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  font-size: 12px;
  flex-shrink: 0;
}

/* Right panel — auth forms */
.auth-panel {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-32);
  background: var(--color-white);
  max-width: 560px;
}
.auth-content {
  width: 100%;
  max-width: 400px;
}

/* Auth sub-views: only one visible at a time */
.auth-view { display: none; }
.auth-view.active { display: block; }

/* ── Landing View ── */
.landing-header {
  text-align: center;
  margin-bottom: var(--space-32);
}
.landing-logo-img {
  width: 220px;
  height: 220px;
  margin: 0 auto var(--space-16);
  display: block;
}
.landing-tagline {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  line-height: 1.6;
}
.landing-tagline .tagline-navy {
  color: var(--color-primary);
}
.landing-tagline .tagline-teal {
  color: var(--color-teal);
}
.landing-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

/* ── Buttons ── */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  width: 100%;
  padding: var(--space-12) var(--space-24);
  font-family: var(--font-family);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s, opacity 0.15s;
  min-height: 48px;
  text-decoration: none;
}
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-sm);
}
.btn-outlined {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-outlined:hover:not(:disabled) {
  background: rgba(14, 75, 108, 0.04);
}
.btn-google {
  background: var(--color-white);
  color: var(--color-neutral-800);
  border: 1.5px solid var(--color-neutral-300);
}
.btn-google:hover:not(:disabled) {
  background: var(--color-neutral-50);
  border-color: var(--color-neutral-400);
}
.btn-google img {
  width: 20px;
  height: 20px;
}
.btn-text {
  background: none;
  border: none;
  color: var(--color-primary);
  font-weight: 500;
  padding: var(--space-4);
  cursor: pointer;
  font-size: 14px;
  font-family: var(--font-family);
}
.btn-text:hover { text-decoration: underline; }
.btn-loading .btn-label { visibility: hidden; }
.btn-loading::after {
  content: '';
  position: absolute;
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
.btn { position: relative; }

/* ── Divider ── */
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  margin: var(--space-20) 0;
  color: var(--color-neutral-500);
  font-size: 13px;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-neutral-300);
}

/* ── Form Elements ── */
.form-header {
  margin-bottom: var(--space-24);
}
.form-header h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: var(--space-4);
}
.form-header p {
  color: var(--color-neutral-600);
  font-size: 14px;
}

.form-group {
  margin-bottom: var(--space-16);
}
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-neutral-800);
  margin-bottom: var(--space-6);
}
.form-input {
  width: 100%;
  padding: var(--space-12) var(--space-16);
  font-family: var(--font-family);
  font-size: 15px;
  border: 1.5px solid var(--color-neutral-300);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-neutral-900);
  transition: border-color 0.15s, box-shadow 0.15s;
  min-height: 48px;
}
.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.12);
}
.form-input::placeholder {
  color: var(--color-neutral-500);
}
.form-input.error {
  border-color: var(--color-error);
}
.form-input.error:focus {
  box-shadow: 0 0 0 3px rgba(217, 48, 37, 0.12);
}

.input-wrapper {
  position: relative;
}
.input-toggle {
  position: absolute;
  right: var(--space-12);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-neutral-600);
  cursor: pointer;
  padding: var(--space-4);
  font-size: 18px;
  line-height: 1;
}

/* Password Strength */
.password-strength {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
}
.strength-bar {
  flex: 1;
  height: 3px;
  background: var(--color-neutral-200);
  border-radius: 2px;
  transition: background 0.2s;
}
.strength-bar.active.weak { background: var(--color-error); }
.strength-bar.active.fair { background: var(--color-warning); }
.strength-bar.active.good { background: var(--color-accent); }
.strength-bar.active.strong { background: var(--color-success); }
.strength-label {
  font-size: 12px;
  margin-top: var(--space-4);
  color: var(--color-neutral-600);
}

/* Checkbox */
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-8);
  font-size: 13px;
  color: var(--color-neutral-700);
  cursor: pointer;
}
.form-checkbox input {
  margin-top: 2px;
  width: 16px; height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}
.form-checkbox a {
  color: var(--color-primary);
  text-decoration: none;
}
.form-checkbox a:hover { text-decoration: underline; }

/* Form Links */
.form-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-8);
  margin-bottom: var(--space-16);
  font-size: 14px;
}
.form-footer {
  text-align: center;
  margin-top: var(--space-24);
  font-size: 14px;
  color: var(--color-neutral-600);
}
.form-footer a, .form-footer button {
  color: var(--color-primary);
  font-weight: 500;
}

/* Error Message */
.form-error {
  display: none;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-16);
  background: rgba(217, 48, 37, 0.08);
  border: 1px solid rgba(217, 48, 37, 0.2);
  border-radius: var(--radius-sm);
  color: var(--color-error);
  font-size: 14px;
  margin-bottom: var(--space-16);
}
.form-error.visible { display: flex; }
.form-error-icon { flex-shrink: 0; font-size: 18px; }

/* Success Message */
.form-success {
  display: none;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-16);
  background: rgba(30, 142, 62, 0.08);
  border: 1px solid rgba(30, 142, 62, 0.2);
  border-radius: var(--radius-sm);
  color: var(--color-success);
  font-size: 14px;
  margin-bottom: var(--space-16);
}
.form-success.visible { display: flex; }

/* Terms */
.terms-text {
  text-align: center;
  font-size: 12px;
  color: var(--color-neutral-500);
  margin-top: var(--space-24);
  line-height: 1.6;
}
.terms-text a {
  color: var(--color-neutral-700);
  text-decoration: underline;
}

/* ── Loading Screen ── */
#app-loading {
  position: fixed; inset: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--color-neutral-50);
  z-index: 50;
}
.loading-brand {
  text-align: center;
  margin-bottom: var(--space-40);
}
.loading-brand h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
}
.loading-brand p {
  font-size: 14px;
  color: var(--color-neutral-600);
  margin-top: var(--space-4);
}
.loading-progress {
  width: 200px;
  height: 3px;
  background: var(--color-neutral-200);
  border-radius: 2px;
  overflow: hidden;
}
.loading-progress-bar {
  height: 100%;
  width: 30%;
  background: var(--color-primary);
  border-radius: 2px;
  animation: loading-slide 1.4s ease-in-out infinite;
}
@keyframes loading-slide {
  0% { transform: translateX(-100%); width: 30%; }
  50% { width: 60%; }
  100% { transform: translateX(350%); width: 30%; }
}
.loading-text {
  margin-top: var(--space-16);
  font-size: 13px;
  color: var(--color-neutral-500);
}

/* Fade-out transition for loading screen */
#app-loading.fade-out {
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  #app-auth { flex-direction: column; }

  .auth-hero { display: none; }

  .auth-panel {
    max-width: 100%;
    padding: var(--space-24) var(--space-20);
    min-height: 100vh;
  }

  .landing-header { margin-bottom: var(--space-24); }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .auth-hero { padding: var(--space-32); }
  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 16px; }
}