/* ==========================================================================
   ProcessPlan Components — components.css
   Reusable UI components: buttons, cards, forms, badges, nav, footer
   ========================================================================== */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  line-height: 1;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* Primary */
.btn--primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, #1d4ed8 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-md), 0 0 0 0 rgba(59, 130, 246, 0);
}

.btn--primary:hover {
  box-shadow: var(--shadow-lg), 0 0 20px rgba(59, 130, 246, 0.3);
  color: var(--color-white);
}

/* Secondary / Outline */
.btn--secondary {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

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

/* Ghost (on dark backgrounds) */
.btn--ghost {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(4px);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}

/* Sizes */
.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  border-radius: var(--radius-xl);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

/* Button with icon */
.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-light);
  transform: translateY(-2px);
}

.card--flat {
  border: none;
  background: var(--color-surface);
}

.card--flat:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
}

.card--glass {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}

.card--glass:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--color-accent-light);
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
  color: var(--color-primary);
}

.card__description {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-modal);
  background: rgba(255, 255, 255, 1);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.nav.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  text-decoration: none;
}

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

.nav__logo svg,
.nav__logo img {
  height: 32px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-accent);
  background: var(--color-accent-light);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav__login {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav__login:hover {
  color: var(--color-accent);
}

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-text);
}

.nav__toggle svg {
  width: 24px;
  height: 24px;
}

/* Mobile Menu Overlay */
.nav__mobile {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  padding: var(--space-6);
  z-index: var(--z-modal);
  overflow-y: auto;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.nav__mobile.open {
  display: flex;
  flex-direction: column;
}

.nav__mobile .nav__link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-lg);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
}

.nav__mobile .nav__link:hover {
  color: var(--color-accent);
}

.nav__mobile .nav__actions {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.nav__mobile .nav__actions .btn {
  width: 100%;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
}

.footer a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

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

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand {
  max-width: 320px;
}

.footer__brand-name {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.footer__brand-desc {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.footer__social {
  display: flex;
  gap: var(--space-3);
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.footer__social svg {
  width: 18px;
  height: 18px;
}

.footer__col-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__col li a {
  font-size: var(--text-sm);
  display: block;
  padding: var(--space-1) 0;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

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

.footer__legal {
  display: flex;
  gap: var(--space-6);
}

.footer__legal a {
  font-size: var(--text-sm);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding-top: 72px; /* nav height */
  overflow: hidden;
}

.hero--dark {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1a2744 50%, #0c1929 100%);
  color: var(--color-text-inverse);
}

.hero__bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
}

.hero__bg-glow--blue {
  background: var(--color-accent);
  top: -200px;
  right: -100px;
}

.hero__bg-glow--cyan {
  background: var(--color-cyan);
  bottom: -200px;
  left: -100px;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 880px;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-size: clamp(var(--text-3xl), 4.2vw, var(--text-6xl));
  font-weight: var(--weight-extrabold);
  color: var(--color-white);
  margin-bottom: var(--space-6);
  letter-spacing: -0.03em;
}

.hero__description {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ---------- Feature Rows (alternating layout) ---------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.feature-row--reverse .feature-row__content {
  order: 2;
}

.feature-row--reverse .feature-row__visual {
  order: 1;
}

.feature-row__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}

.feature-row__title {
  margin-bottom: var(--space-4);
}

.feature-row__description {
  font-size: var(--text-lg);
  margin-bottom: var(--space-6);
}

.feature-row__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-row__list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.feature-row__list li svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-row__visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

/* Visual placeholder for feature images */
.feature-visual {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-accent-light) 100%);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

/* ---------- Stats Row ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  text-align: center;
}

.stat__number {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}

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

/* ---------- Pricing Cards ---------- */
.pricing-card {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  text-align: center;
  transition: all var(--transition-base);
}

.pricing-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.pricing-card--featured {
  border-color: var(--color-accent);
  position: relative;
}

.pricing-card--featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-1) var(--space-4);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-card__name {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.pricing-card__price {
  font-size: var(--text-5xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.pricing-card__price span {
  font-size: var(--text-lg);
  font-weight: var(--weight-normal);
  color: var(--color-text-muted);
}

.pricing-card__period {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.pricing-card__features {
  text-align: left;
  margin-bottom: var(--space-8);
}

.pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.pricing-card__features li svg {
  width: 18px;
  height: 18px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 1px;
}

.pricing-card .btn {
  width: 100%;
}

/* ---------- Pricing Table ---------- */
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.pricing-table th,
.pricing-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.pricing-table th {
  font-weight: var(--weight-semibold);
  color: var(--color-primary);
  background: var(--color-surface);
}

.pricing-table td {
  color: var(--color-text-secondary);
}

.pricing-table tr:hover td {
  background: var(--color-surface);
}

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-input--error {
  border-color: var(--color-error);
}

.form-input--error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-success {
  padding: var(--space-4) var(--space-6);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-lg);
  color: var(--color-success);
  font-weight: var(--weight-medium);
  text-align: center;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge--accent {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.badge--cyan {
  background: var(--color-cyan-light);
  color: #0e7490;
}

.badge--success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

/* ---------- Accordion / FAQ ---------- */
.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.accordion__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.accordion__item.open {
  border-color: var(--color-accent);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-primary);
  cursor: pointer;
  text-align: left;
}

.accordion__trigger:hover {
  color: var(--color-accent);
}

.accordion__icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.accordion__item.open .accordion__icon {
  transform: rotate(180deg);
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.accordion__body {
  padding: 0 var(--space-6) var(--space-4);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ---------- CTA Banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1a2744 100%);
  border-radius: var(--radius-2xl);
  padding: var(--space-16) var(--space-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: var(--color-accent);
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.12;
  top: -100px;
  right: -100px;
}

.cta-banner__title {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
}

.cta-banner__description {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin: 0 auto var(--space-8);
  position: relative;
  z-index: 1;
}

.cta-banner__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ---------- Page Hero (for inner pages) ---------- */
.page-hero {
  padding: calc(72px + var(--space-16)) 0 var(--space-16);
  background: var(--color-surface);
  text-align: center;
}

.page-hero__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.page-hero__description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Industry / Category Tags ---------- */
.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag:hover,
.tag--active {
  background: var(--color-accent-light);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ---------- Steps / How It Works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  counter-reset: step;
}

.step {
  text-align: center;
  counter-increment: step;
}

.step__number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-cyan) 100%);
  color: var(--color-white);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
}

.step__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
}

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

/* ---------- Legal / Long-form Content ---------- */
.legal-content {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.legal-content h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.legal-content h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.legal-content h3 {
  font-size: var(--text-xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.legal-content p {
  margin-bottom: var(--space-4);
}

.legal-content ul,
.legal-content ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.legal-content ul {
  list-style: disc;
}

.legal-content ol {
  list-style: decimal;
}

.legal-content li {
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

.legal-content a {
  text-decoration: underline;
}

.legal-content strong {
  color: var(--color-text);
}

/* ---------- Table of Contents (Legal Sidebar) ---------- */
.toc {
  position: sticky;
  top: 100px;
}

.toc__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}

.toc__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.toc__link {
  display: block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}

.toc__link:hover,
.toc__link--active {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}