/* ============================================
   PretorIA Landing Page — OpenAI Business Style
   Clean, white, premium, minimal
   ============================================ */

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

:root {
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --color-bg: #ffffff;
  --color-text: #0d0d0d;
  --color-text-secondary: #4a4a4a;
  --color-text-muted: #6b6b6b;
  --color-border: #e5e5e5;
  --color-surface: #f4f4f4;
  --color-surface-2: #faf9f7;

  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.8125rem, 0.76rem + 0.28vw, 0.9375rem);
  --text-base: clamp(0.9375rem, 0.88rem + 0.3vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.25rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.1);

  --max-width: 1200px;
  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-height: 100dvh;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; font: inherit; }
h1, h2, h3, h4 { line-height: 1.15; text-wrap: balance; }
p { text-wrap: pretty; }

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
  padding: 0.625rem 1.25rem;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-text);
  color: var(--color-bg);
}
.btn--primary:hover {
  background: #333;
}

.btn--ghost {
  background: var(--color-surface);
  color: var(--color-text);
}
.btn--ghost:hover {
  background: #eaeaea;
}

.btn--text {
  background: none;
  color: var(--color-text);
  padding-left: 0;
  padding-right: 0;
}
.btn--text:hover {
  opacity: 0.7;
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
}

.chevron {
  font-size: 1.1em;
  transition: transform var(--transition);
}
.btn:hover .chevron {
  transform: translateX(2px);
}

/* --- NAVIGATION --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.nav--scrolled {
  border-bottom-color: var(--color-border);
}

.nav__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  height: 3.5rem;
  gap: var(--space-8);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  gap: var(--space-6);
  flex: 1;
}
.nav__links a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition);
  font-weight: 400;
}
.nav__links a:hover {
  color: var(--color-text);
}

.nav__actions {
  display: flex;
  gap: var(--space-2);
  flex-shrink: 0;
}

.nav__actions--registration {
  margin-left: auto;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 0;
}
.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all var(--transition);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 3.5rem;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 99;
  padding: var(--space-6);
}
.mobile-menu--open {
  display: block;
}
.mobile-menu__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.mobile-menu__links a {
  font-size: var(--text-lg);
  font-weight: 500;
}

/* --- HERO --- */
.hero {
  padding: clamp(var(--space-12), 6vw, var(--space-20)) 0 clamp(var(--space-12), 8vw, var(--space-24));
}

.hero__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.hero__title {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
  color: var(--color-text);
}

.hero__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-8);
  max-width: 540px;
}

.hero__cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Hero Visual — Chat Mockup */
.hero__card {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.hero__card-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(135deg, #c8b6e8 0%, #e8c4c8 40%, #f0d0a8 80%, #d4e0c8 100%);
  opacity: 0.5;
}

.hero__card-content {
  position: relative;
  z-index: 1;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  margin: var(--space-3);
  border-radius: var(--radius-xl);
}

.hero__chat-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
}

.hero__chat-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
}

.hero__chat-body {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.hero__chat-msg {
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  line-height: 1.5;
}

.hero__chat-msg--user {
  background: var(--color-surface);
  color: var(--color-text);
  align-self: flex-end;
  max-width: 85%;
}

.hero__chat-msg--ai {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.hero__chat-msg--ai p {
  margin-bottom: var(--space-2);
}

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

.hero__chat-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-xs);
}

.hero__chat-bullet {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-text);
  color: var(--color-bg);
  font-size: 10px;
  font-weight: 600;
  flex-shrink: 0;
}

.hero__chat-input {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.hero__chat-actions {
  color: var(--color-text-muted);
}

/* --- LOGOS / SOCIAL PROOF --- */
.logos {
  padding: var(--space-12) 0 var(--space-16);
  border-top: 1px solid var(--color-border);
}

.logos__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  text-align: center;
}

.logos__text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
}

.logos__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-6);
  align-items: center;
}

.logos__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  font-weight: 500;
}

/* --- FEATURE CARDS --- */
.features {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.features__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.features__header {
  margin-bottom: var(--space-12);
  max-width: 640px;
}

.features__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.features__desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.feature-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: box-shadow var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
}

.feature-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.feature-card__title {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.feature-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.55;
}

/* --- USE CASES TABS --- */
.usecases {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.usecases__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  text-align: center;
}

.usecases__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.usecases__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.usecases__tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.usecases__tab {
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.usecases__tab:hover {
  border-color: #999;
}
.usecases__tab--active {
  background: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

.usecases__content {
  text-align: left;
}

.usecases__panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  min-height: 360px;
}
.usecases__panel--active {
  display: grid;
}

.usecases__panel-text h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.usecases__panel-text p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-5);
  line-height: 1.6;
}

.usecases__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.usecases__list li {
  font-size: var(--text-sm);
  color: var(--color-text);
  padding-left: var(--space-5);
  position: relative;
}
.usecases__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text);
}

/* Mockup inside use case panels */
.usecases__mockup {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.usecases__mockup-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.usecases__mockup-dots {
  display: flex;
  gap: 5px;
}
.usecases__mockup-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.usecases__mockup-dots span:nth-child(1) { background: #ef4444; }
.usecases__mockup-dots span:nth-child(2) { background: #f59e0b; }
.usecases__mockup-dots span:nth-child(3) { background: #22c55e; }

.usecases__mockup-title {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
}

.usecases__mockup-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.usecases__mockup-row {
  display: grid;
  grid-template-columns: 100px 1fr 50px;
  align-items: center;
  gap: var(--space-3);
}

.usecases__mockup-label {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.usecases__mockup-bar {
  height: 8px;
  border-radius: 4px;
  background: var(--color-surface);
  position: relative;
  overflow: hidden;
}
.usecases__mockup-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  border-radius: 4px;
}
.usecases__mockup-bar--high::after { width: 85%; background: #ef4444; }
.usecases__mockup-bar--mid::after { width: 60%; background: #f59e0b; }
.usecases__mockup-bar--low::after { width: 35%; background: #22c55e; }
.usecases__mockup-bar--full::after { width: 100%; background: #22c55e; }

.usecases__mockup-val {
  font-size: var(--text-xs);
  font-weight: 600;
  text-align: right;
}

/* Checklist mockup */
.usecases__mockup-body--checklist {
  gap: var(--space-3);
}

.usecases__check {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  flex-shrink: 0;
}
.check.done {
  background: var(--color-text);
  color: var(--color-bg);
}
.check.pending {
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 10px;
}

/* Metrics mockup */
.usecases__mockup-body--metrics {
  flex-direction: row;
  justify-content: center;
  gap: var(--space-10);
  padding: var(--space-8) var(--space-5);
}

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

.usecases__metric-val {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
}

.usecases__metric-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* --- TESTIMONIALS --- */
.testimonials {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.testimonials__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.testimonials__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: var(--space-12);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.testimonials__carousel {
  position: relative;
  overflow: hidden;
}

.testimonials__card {
  display: none;
  grid-template-columns: 1fr 1fr;
  min-height: 360px;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.testimonials__card--active {
  display: grid;
}

.testimonials__quote-side {
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.testimonials__eyebrow {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.testimonials__quotemark {
  font-size: 4rem;
  line-height: 0.8;
  color: var(--color-border);
  font-family: Georgia, serif;
  margin-bottom: var(--space-2);
}

.testimonials__text {
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.45;
  margin-bottom: var(--space-6);
  color: var(--color-text);
}

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

.testimonials__name {
  font-size: var(--text-sm);
  font-weight: 600;
}

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

/* Gradient sides */
.testimonials__gradient-side {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.testimonials__gradient-side--1 {
  background: linear-gradient(135deg, #c4b8e8 0%, #e8c4d0 50%, #f0d4b0 100%);
}
.testimonials__gradient-side--2 {
  background: linear-gradient(135deg, #b8d4e8 0%, #d0c4e8 50%, #e8d0c4 100%);
}
.testimonials__gradient-side--3 {
  background: linear-gradient(135deg, #c8e0c4 0%, #d4c8e8 50%, #e8c8c4 100%);
}

.testimonials__gradient-logo {
  opacity: 0.6;
}

.testimonials__nav {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.testimonials__arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: all var(--transition);
}
.testimonials__arrow:hover {
  border-color: var(--color-text);
  background: var(--color-surface);
}

/* --- RESOURCES --- */
.uso-real {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.uso-real__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.uso-real__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-8);
}

.uso-real__list {
  display: flex;
  flex-direction: column;
}

.uso-real__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border);
  transition: opacity var(--transition);
  gap: var(--space-4);
}
.uso-real__item:last-child {
  border-bottom: 1px solid var(--color-border);
}
.uso-real__item:hover {
  opacity: 0.7;
}

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

.uso-real__item-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
}

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

.uso-real__item-cta {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  flex-shrink: 0;
}

/* --- EXPLORE MORE --- */
.explore {
  padding: clamp(var(--space-8), 6vw, var(--space-16)) 0;
}

.explore__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.explore__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-8);
}

.explore__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.explore__card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: box-shadow var(--transition);
}
.explore__card:hover {
  box-shadow: var(--shadow-md);
}

.explore__card-eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  display: block;
  margin-bottom: var(--space-3);
}

.explore__card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: var(--space-4);
}

.explore__card-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

/* --- CTA BANNER --- */
.cta-banner {
  padding: var(--space-8) 0 clamp(var(--space-12), 8vw, var(--space-20));
}

.cta-banner__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-10) var(--space-10);
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.cta-banner__title {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.cta-banner__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* --- FOOTER --- */
.footer {
  padding: var(--space-12) 0 var(--space-8);
}

.footer__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.footer__top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-12);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-border);
}

.footer__brand {
  color: var(--color-text);
}

.footer__cols {
  display: flex;
  gap: var(--space-16);
}

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

.footer__col-title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.footer__col a {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  transition: color var(--transition);
}
.footer__col a:hover {
  color: var(--color-text);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-6);
  flex-wrap: wrap;
}

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

.footer__social a {
  color: var(--color-text);
  transition: opacity var(--transition);
}
.footer__social a:hover {
  opacity: 0.6;
}

.footer__attribution {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.footer__attribution a {
  transition: color var(--transition);
}
.footer__attribution a:hover {
  color: var(--color-text);
}

/* =======================
   RESPONSIVE — TABLET
   ======================= */
@media (max-width: 960px) {
  .hero__container {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .hero__title {
    font-size: clamp(2rem, 1rem + 3.5vw, 3rem);
  }
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .usecases__panel {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .testimonials__card {
    grid-template-columns: 1fr;
  }
  .testimonials__gradient-side {
    min-height: 160px;
    order: -1;
  }
  .explore__grid {
    grid-template-columns: 1fr;
  }
  .logos__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer__top {
    flex-direction: column;
    gap: var(--space-8);
  }
}

/* =======================
   RESPONSIVE — MOBILE
   ======================= */
@media (max-width: 640px) {
  .nav__links, .nav__actions {
    display: none;
  }
  .nav__toggle {
    display: flex;
  }
  .features__grid {
    grid-template-columns: 1fr;
  }
  .usecases__tabs {
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    flex-wrap: nowrap;
    padding-bottom: var(--space-2);
  }
  .usecases__tabs::-webkit-scrollbar { display: none; }
  .usecases__tab {
    flex-shrink: 0;
  }
  .usecases__panel {
    padding: var(--space-6);
  }
  .testimonials__quote-side {
    padding: var(--space-6);
  }
  .cta-banner__container {
    flex-direction: column;
    text-align: center;
    padding: var(--space-8) var(--space-6);
  }
  .cta-banner__actions {
    flex-direction: column;
  }
  .logos__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer__cols {
    flex-direction: column;
    gap: var(--space-8);
  }
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
  .uso-real__item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}

/* --- ANIMATION (fade in on scroll) --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- REGISTRO --- */
.registro {
  min-height: calc(100dvh - 3.5rem);
  background:
    radial-gradient(circle at top left, rgba(200, 182, 232, 0.22), transparent 30%),
    radial-gradient(circle at bottom right, rgba(240, 208, 168, 0.18), transparent 28%),
    var(--color-bg);
}

.registro__hero {
  padding: clamp(var(--space-12), 8vw, var(--space-20)) 0;
}

.registro__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-10);
  align-items: center;
}

.registro__eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.registro__title {
  font-size: var(--text-3xl);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

.registro__text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 540px;
  margin-bottom: var(--space-8);
}

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

.registro__point {
  border: 1px solid var(--color-border);
  background: rgba(255,255,255,0.8);
  border-radius: var(--radius-full);
  padding: 0.55rem 0.9rem;
  font-size: var(--text-xs);
  font-weight: 500;
}

.registro__panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  background: rgba(255,255,255,0.92);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(18px);
  padding: var(--space-8);
}

.registro__form {
  display: grid;
  gap: var(--space-4);
}

.registro__field {
  display: grid;
  gap: var(--space-2);
}

.registro__field span {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
}

.registro__field input {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  color: var(--color-text);
  padding: 0.9rem 1rem;
  font: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

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

.registro__field input:focus {
  outline: none;
  border-color: #999;
  box-shadow: 0 0 0 4px rgba(0,0,0,0.04);
}

.registro__submit {
  justify-content: center;
  margin-top: var(--space-2);
}

.registro__status {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
}

@media (max-width: 960px) {
  .registro__container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav__actions--registration {
    display: none;
  }
  .registro__panel {
    padding: var(--space-6);
  }
  .registro__title {
    font-size: clamp(2rem, 1rem + 3.5vw, 3rem);
  }
}

/* --- ARTICLE PAGE --- */
.article-page {
  background:
    radial-gradient(circle at top left, rgba(200, 182, 232, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(240, 208, 168, 0.14), transparent 24%),
    var(--color-bg);
}

.article-hero {
  padding: clamp(var(--space-12), 7vw, var(--space-20)) 0 var(--space-12);
}

.article-hero__container,
.article-body__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.article-hero__container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-8);
  align-items: end;
}

.article-hero__eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.article-hero__title {
  font-size: var(--text-3xl);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-3);
}

.article-hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 40rem;
}

.article-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.article-hero__meta span,
.article-aside__panel li {
  font-size: var(--text-xs);
}

.article-hero__meta span {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.45rem 0.8rem;
  background: rgba(255,255,255,0.75);
}

.article-hero__card,
.article-content,
.article-aside__panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  background: rgba(255,255,255,0.9);
  box-shadow: var(--shadow-md);
}

.article-hero__card {
  padding: var(--space-3);
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(200, 182, 232, 0.28), rgba(240, 208, 168, 0.18)),
    rgba(255,255,255,0.92);
}

.article-chat {
  background: rgba(255,255,255,0.96);
  border: 1px solid rgba(229,229,229,0.9);
  border-radius: calc(var(--radius-2xl) - 0.2rem);
  overflow: hidden;
}

.article-chat__top {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.article-chat__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.12);
}

.article-chat__body {
  padding: var(--space-5);
  display: grid;
  gap: var(--space-4);
}

.article-chat__bubble,
.article-chat__reply,
.article-chat__composer {
  border-radius: var(--radius-xl);
}

.article-chat__bubble {
  background: #f4f4f4;
  padding: var(--space-4);
  color: var(--color-text);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.article-chat__reply {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  padding: var(--space-4);
}

.article-chat__reply p {
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.article-chat__list {
  display: grid;
  gap: var(--space-2);
}

.article-chat__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.article-chat__num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #111;
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.article-chat__composer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.article-chat__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.75;
}

.article-hero__card-header {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.article-hero__card p,
.article-content p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.article-body {
  padding-bottom: var(--space-20);
}

.article-body__container {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: var(--space-8);
}

.article-content {
  padding: var(--space-8);
}

.article-content h2 {
  font-size: var(--text-xl);
  margin: var(--space-8) 0 var(--space-4);
}

.article-content ul {
  padding-left: 1.2rem;
  color: var(--color-text-secondary);
}

.article-content li + li {
  margin-top: var(--space-2);
}

.article-callout {
  margin-top: var(--space-8);
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.article-aside {
  display: grid;
  gap: var(--space-4);
  align-self: start;
}

.article-aside__panel {
  padding: var(--space-6);
}

.article-aside__panel h3 {
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}

.article-aside__panel ul {
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.article-aside__panel li {
  padding: 0.65rem 0.8rem;
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
}

.article-aside__panel--accent {
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(244,244,244,0.95));
}

.article-aside__panel--accent p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

/* --- LOGIN --- */
.login-page {
  background:
    radial-gradient(circle at top left, rgba(200, 182, 232, 0.16), transparent 30%),
    radial-gradient(circle at bottom right, rgba(240, 208, 168, 0.14), transparent 26%),
    var(--color-bg);
}

.login-hero {
  padding: clamp(var(--space-12), 8vw, var(--space-20)) 0;
}

.login-hero__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: var(--space-10);
  align-items: center;
}

.login-hero__eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.login-hero__title {
  font-size: var(--text-3xl);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

.login-hero__text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 34rem;
}

.login-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow-lg);
  padding: var(--space-8);
}

.login-form {
  display: grid;
  gap: var(--space-4);
}

.login-field {
  display: grid;
  gap: var(--space-2);
}

.login-field span {
  font-size: var(--text-xs);
  font-weight: 600;
}

.login-field input {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  padding: 0.9rem 1rem;
  font: inherit;
}

.login-submit {
  justify-content: center;
}

.login-access {
  display: grid;
  gap: var(--space-3);
  text-align: center;
  padding: var(--space-2) 0 var(--space-4);
}

.login-access__label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--color-text-muted);
}

.login-access__title {
  font-size: var(--text-xl);
  letter-spacing: -0.03em;
}

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

.login-note {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* --- DASHBOARD --- */
.dashboard-page {
  background:
    radial-gradient(circle at top left, rgba(200, 182, 232, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(240, 208, 168, 0.14), transparent 24%),
    var(--color-bg);
  min-height: calc(100dvh - 3.5rem);
}

.dashboard-hero,
.dashboard-table-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.dashboard-hero {
  padding-top: clamp(var(--space-12), 8vw, var(--space-20));
}

.dashboard-hero__container {
  display: flex;
  justify-content: space-between;
  gap: var(--space-8);
  align-items: end;
}

.dashboard-hero__eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.dashboard-hero__title {
  font-size: var(--text-3xl);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

.dashboard-hero__text {
  max-width: 40rem;
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
}

.dashboard-hero__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.dashboard-stat,
.dashboard-table-wrap,
.dashboard-empty {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  background: rgba(255,255,255,0.94);
  box-shadow: var(--shadow-md);
}

.dashboard-stat {
  padding: var(--space-5);
}

.dashboard-stat__label {
  display: block;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.dashboard-stat__value {
  font-size: var(--text-2xl);
  letter-spacing: -0.04em;
}

.dashboard-table-section {
  padding-top: var(--space-8);
  padding-bottom: var(--space-20);
}

.dashboard-table-wrap {
  padding: var(--space-6);
}

.dashboard-storage-path {
  margin-bottom: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.dashboard-storage-path code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
}

.dashboard-notice {
  margin-bottom: var(--space-5);
  padding: 0.9rem 1rem;
  border-radius: var(--radius-lg);
  background: #eef7ef;
  color: #1f5c2a;
  border: 1px solid #cfe9d3;
}

.dashboard-notice--error {
  background: #fff2f2;
  color: #8b2b2b;
  border-color: #f2c9c9;
}

.dashboard-empty {
  padding: var(--space-8);
  text-align: center;
}

.dashboard-empty h2 {
  margin-bottom: var(--space-3);
}

.dashboard-empty p {
  color: var(--color-text-secondary);
}

.dashboard-table-scroll {
  overflow-x: auto;
}

.dashboard-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
}

.dashboard-table th,
.dashboard-table td {
  text-align: left;
  padding: 1rem 0.85rem;
  vertical-align: top;
  border-top: 1px solid var(--color-border);
}

.dashboard-table thead th {
  border-top: none;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.dashboard-link {
  color: #2759b3;
}

.dashboard-pill {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-full);
  padding: 0.35rem 0.7rem;
  font-size: var(--text-xs);
  font-weight: 600;
}

.dashboard-pill--nuevo {
  background: #eef2ff;
  color: #3644b7;
}

.dashboard-pill--contactado {
  background: #fff5e8;
  color: #9a5c14;
}

.dashboard-pill--registrado {
  background: #edf8ef;
  color: #21653b;
}

.dashboard-pill--descartado {
  background: #f4f4f4;
  color: #5f5f5f;
}

.dashboard-row-form {
  display: grid;
  gap: var(--space-2);
  min-width: 220px;
}

.dashboard-select,
.dashboard-textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  padding: 0.75rem 0.85rem;
  font: inherit;
}

.dashboard-textarea {
  min-height: 72px;
  resize: vertical;
}

@media (max-width: 960px) {
  .login-hero__container {
    grid-template-columns: 1fr;
  }

  .dashboard-hero__container {
    flex-direction: column;
    align-items: flex-start;
  }

  .dashboard-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* --- COOKIE CONSENT --- */
.cookie-banner {
  position: fixed;
  left: 50%;
  bottom: var(--space-6);
  transform: translateX(-50%);
  width: min(920px, calc(100vw - 2rem));
  z-index: 999;
  border-radius: 24px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(181, 192, 255, 0.95), rgba(214, 184, 245, 0.95), rgba(248, 214, 193, 0.95));
  box-shadow: 0 24px 60px rgba(20, 20, 20, 0.18);
}

.cookie-banner[hidden] {
  display: none !important;
}

.cookie-banner__inner {
  border-radius: 23px;
  background: rgba(255, 255, 255, 0.98);
  padding: clamp(1rem, 1rem + 1vw, 1.5rem);
}

.cookie-banner__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}

.cookie-banner__title {
  font-size: var(--text-lg);
  font-weight: 700;
  text-align: center;
  flex: 1;
  margin-top: var(--space-1);
}

.cookie-banner__close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--color-text);
  font-size: 1.25rem;
  line-height: 1;
  flex: 0 0 auto;
}

.cookie-banner__text {
  color: #4f5b74;
  font-size: var(--text-sm);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.cookie-banner__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.cookie-banner__link {
  color: #7d5cff;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-left: auto;
}

.cookie-banner__btn {
  min-width: 136px;
  justify-content: center;
  border-radius: 18px;
  padding: 0.95rem 1.4rem;
  font-weight: 600;
}

.cookie-banner__btn--soft {
  background: #f6f6f8;
  color: var(--color-text);
  border: 1px solid #ececf0;
}

.cookie-banner__btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid #232336;
}

.cookie-banner__btn--accept {
  background: #262638;
  color: #fff;
}

@media (max-width: 640px) {
  .cookie-banner {
    bottom: var(--space-3);
    width: calc(100vw - 1rem);
    border-radius: 20px;
  }

  .cookie-banner__inner {
    border-radius: 19px;
  }

  .cookie-banner__title {
    text-align: left;
  }

  .cookie-banner__footer {
    align-items: stretch;
  }

  .cookie-banner__actions {
    width: 100%;
  }

  .cookie-banner__btn {
    flex: 1 1 100%;
  }

  .dashboard-stats {
    grid-template-columns: 1fr;
  }

  .dashboard-table-wrap,
  .dashboard-empty {
    padding: var(--space-5);
  }
}

@media (max-width: 960px) {
  .article-hero__container,
  .article-body__container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .article-content,
  .article-hero__card,
  .article-aside__panel {
    padding: var(--space-6);
  }
  .article-hero__title {
    font-size: clamp(2rem, 1rem + 3.5vw, 3rem);
  }
}