/* ========================================
   PROAGRAR STYLES - Mobile First, Responsive
   ======================================== */

/* ========================================
   RESET & BASE
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Colors */
  --color-primary: #0b66c3;
  --color-primary-dark: #084a8f;
  --color-accent: #4CAF50;
  --color-text: #1a1a1a;
  --color-text-muted: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-border: #e5e7eb;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  
  /* Layout */
  --container-max: 1280px;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  
  /* Transitions */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #f9fafb;
    --color-text-muted: #9ca3af;
    --color-bg: #111827;
    --color-bg-alt: #1f2937;
    --color-border: #374151;
  }
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

/* ========================================
   SKIP LINK
   ======================================== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 10px;
  background: var(--color-primary);
  color: white;
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  z-index: 10000;
  border-radius: var(--radius);
  font-weight: 600;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 10px;
}

/* ========================================
   CONTAINER & LAYOUT
   ======================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
  }
}

.section {
  padding: var(--space-3xl) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section__title {
  font-size: var(--text-3xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.section__lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
  margin-bottom: var(--space-md);
}

.muted {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

/* ========================================
   HEADER
   ======================================== */
.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(17, 24, 39, 0.95);
  }
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}

.brand {
  display: flex;
  align-items: center;
}

.brand__logo {
  height: 40px;
  width: auto;
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  position: relative;
  z-index: 1001;
}

.menu-toggle__icon,
.menu-toggle__icon::before,
.menu-toggle__icon::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.menu-toggle__icon {
  position: relative;
}

.menu-toggle__icon::before,
.menu-toggle__icon::after {
  content: '';
  position: absolute;
  left: 0;
}

.menu-toggle__icon::before {
  top: -7px;
}

.menu-toggle__icon::after {
  top: 7px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon::before {
  transform: rotate(45deg);
  top: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon::after {
  transform: rotate(-45deg);
  top: 0;
}

.site-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 300px;
  height: 100vh;
  background: var(--color-bg);
  padding: 80px var(--space-lg) var(--space-lg);
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
  transition: right 0.3s ease;
  overflow-y: auto;
}

.site-nav.is-open {
  right: 0;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-list li {
  margin-bottom: var(--space-md);
}

.nav-link {
  display: block;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  padding: var(--space-sm) 0;
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--color-primary);
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
  
  .site-nav {
    position: static;
    width: auto;
    max-width: none;
    height: auto;
    padding: 0;
    box-shadow: none;
    background: transparent;
  }
  
  .nav-list {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
  }
  
  .nav-list li {
    margin-bottom: 0;
  }
  
  .nav-link {
    font-size: var(--text-base);
    position: relative;
  }
  
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition);
  }
  
  .nav-link:hover::after {
    width: 100%;
  }
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  font-weight: 600;
  font-size: var(--text-base);
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  text-align: center;
}

.btn--primary {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(11, 102, 195, 0.3);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  background: var(--color-primary);
  color: white;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-text);
}

/* ========================================
   GRID SYSTEM
   ======================================== */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid--2 {
  grid-template-columns: 1fr;
}

.grid--3 {
  grid-template-columns: 1fr;
}

.grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ========================================
   CARDS
   ======================================== */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  border-color: var(--color-primary);
}

.card__title {
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.card--quote {
  border-left: 4px solid var(--color-primary);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  padding: var(--space-3xl) 0;
  min-height: 500px;
  display: flex;
  align-items: center;
  background: linear-gradient(to bottom, var(--color-bg), var(--color-bg-alt));
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero__title {
  font-size: var(--text-4xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.hero__lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.hero__cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.hero__highlights {
  list-style: none;
  padding: 0;
}

.hero__highlights li {
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
  position: relative;
  color: var(--color-text-muted);
}

.hero__highlights li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

.hero__illustration {
  width: 100%;
  height: auto;
  max-width: 500px;
  margin: 0 auto;
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 2;
  opacity: 0.3;
}

.hero__chart {
  width: 100%;
  height: auto;
  max-width: 400px;
  margin: 0 auto;
  display: block;
}

.hero__card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-top: var(--space-lg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: dark) {
  .hero__card {
    background: var(--color-bg-alt);
    border-color: var(--color-border);
  }
  
  .hero__chart text {
    fill: var(--color-text) !important;
  }
  
  .hero__chart line {
    stroke: var(--color-border) !important;
  }
}

.hero__metric {
  margin-bottom: var(--space-md);
}

.hero__metric:last-child {
  margin-bottom: 0;
}

.hero__metric-value {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.hero__metric-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.hero__benefit {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--radius);
  transition: background var(--transition);
}

.hero__benefit:hover {
  background: var(--color-bg-alt);
}

.hero__benefit:last-child {
  margin-bottom: 0;
}

.hero__benefit-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.hero__benefit-text {
  flex: 1;
}

.hero__benefit-value {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.hero__benefit-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: 2px;
}

@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr 1fr;
  }
  
  .hero__title {
    font-size: var(--text-5xl);
  }
}

/* ========================================
   TOPCARDS
   ======================================== */
.topcard {
  padding: 0;
  overflow: hidden;
}

.topcard__toggle {
  width: 100%;
  background: none;
  border: none;
  padding: var(--space-xl);
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.topcard__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
}

.topcard__icon svg {
  width: 24px;
  height: 24px;
  fill: var(--color-primary);
}

.topcard__body {
  flex: 1;
}

.topcard__title {
  margin-bottom: 0;
  font-size: var(--text-lg);
}

.topcard__chevron {
  flex-shrink: 0;
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  transition: transform var(--transition);
}

.topcard.is-open .topcard__chevron {
  transform: rotate(180deg);
}

.topcard__details {
  padding: 0 var(--space-xl) var(--space-xl);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
}

.topcard__details[hidden] {
  display: none;
}

.topcard__text {
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
}

.topcard__cta {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 600;
  transition: gap var(--transition);
}

.topcard__cta:hover {
  color: var(--color-primary-dark);
}

/* ========================================
   FORMS
   ======================================== */
.form {
  max-width: 800px;
  margin: 0 auto;
}

.field {
  margin-bottom: var(--space-lg);
}

.field label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: var(--text-base);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.field__input {
  width: 100%;
}

.field__label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.form__actions {
  margin-top: var(--space-xl);
}

.form__note {
  margin-top: var(--space-md);
  font-size: var(--text-sm);
}

.form__status {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius);
  display: none;
}

.form__status.is-success {
  display: block;
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.form__status.is-error {
  display: block;
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

/* ========================================
   FAQ/DETAILS
   ======================================== */
.faq {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: var(--space-md);
}

.faq summary {
  padding: var(--space-lg);
  cursor: pointer;
  font-weight: 600;
  user-select: none;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: '+';
  float: right;
  font-size: var(--text-xl);
  color: var(--color-primary);
}

.faq[open] summary::after {
  content: '−';
}

.faq p {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-text-muted);
}

/* ========================================
   LISTS
   ======================================== */
.list {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-lg);
}

.list--check {
  list-style: none;
  padding-left: 0;
}

.list--check li {
  padding-left: var(--space-xl);
  margin-bottom: var(--space-sm);
  position: relative;
}

.list--check li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
  font-size: var(--text-lg);
}

.list--steps {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}

.list--steps li {
  counter-increment: step;
  padding-left: var(--space-2xl);
  margin-bottom: var(--space-lg);
  position: relative;
}

.list--steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
}

/* ========================================
   STACK UTILITY
   ======================================== */
.stack {
  display: flex;
  flex-direction: column;
}

.stack--md > * + * {
  margin-top: var(--space-md);
}

/* ========================================
   CHAT WIDGET
   ======================================== */
.chat {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 1000;
}

.chat__fab {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  font-size: var(--text-2xl);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat__fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(11, 102, 195, 0.4);
}

.chat__panel {
  position: absolute;
  bottom: 70px;
  right: 0;
  width: min(360px, calc(100vw - 2rem));
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translateY(10px) scale(0.95);
  transition: all var(--transition);
  pointer-events: none;
}

.chat__panel:not([hidden]) {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.chat__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.chat__title {
  font-weight: 700;
  font-size: var(--text-lg);
}

.chat__close {
  background: transparent;
  border: none;
  color: white;
  cursor: pointer;
  font-size: var(--text-2xl);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  transition: background var(--transition);
}

.chat__close:hover {
  background: rgba(255, 255, 255, 0.1);
}

.chat__body {
  padding: var(--space-lg);
}

.chat__intro {
  margin-bottom: var(--space-lg);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.chat__form .field {
  margin-bottom: var(--space-md);
}

.chat__form .field__label {
  font-size: var(--text-sm);
}

.chat__form .field__input {
  font-size: var(--text-sm);
  padding: var(--space-xs) var(--space-sm);
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--space-3xl) 0 var(--space-lg);
  margin-top: var(--space-3xl);
}

.footer__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__brand p {
  margin-bottom: var(--space-xs);
}

.footer__links {
  list-style: none;
  padding: 0;
}

.footer__links li {
  margin-bottom: var(--space-sm);
}

.footer__links a {
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-primary);
}

.footer__contact p {
  margin-bottom: var(--space-xs);
}

.footer__contact a {
  color: var(--color-text-muted);
}

.footer__bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

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

/* ========================================
   ANIMATIONS
   ======================================== */
[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   UTILITIES
   ======================================== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ========================================
   DARK MODE LOGO FILTER
   ======================================== */
@media (prefers-color-scheme: dark) {
  .brand__logo {
    filter: brightness(0) invert(1);
  }
}