*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f5f5;
  color: #222;
  font-size: 16px;
}

/* Colors */
:root {
  --accent-green: #00c853;
  --sidebar-bg: #000000;
  --sidebar-text: #ffffff;
}

/* Topbar (mobile only) */
.topbar {
  display: none;
  background: #000;
  color: #fff;
  padding: 10px 16px;
  align-items: center;
  justify-content: space-between;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-logo {
  width: 28px;
  height: 28px;
}

.topbar-title {
  font-size: 14px;
  font-weight: 600;
}

.menu-btn {
  width: 32px;
  height: 32px;
  border-radius: 4px;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
}

/* Layout */
.layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* Sidebar */
.sidebar {
  width: 300px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding-bottom: 24px;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 24px 24px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.sidebar-logo {
  max-width: 100%;
  height: auto;
}

/* Sidebar nav */
.sidebar-nav {
  padding: 20px 0 8px;
}

.nav-group-label {
  margin: 10px 24px 8px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  opacity: 0.85;
}

.nav-item {
  width: 100%;
  border: none;
  background: transparent;
  color: #fff;
  font-size: 15px;
  text-align: left;
  cursor: pointer;

  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;

  transition: background 0.16s ease, padding-left 0.16s ease, color 0.16s ease;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.06);
  padding-left: 32px;
}

.nav-item.active {
  background: var(--accent-green);
  color: #000;
  padding-left: 32px;
}

.nav-arrow {
  font-size: 11px;
}

/* Content */
.content {
  flex: 1;
  padding: 32px 40px;
  display: flex;
  flex-direction: column;
}

.content-inner {
  background: #ffffff;
  border-radius: 0;
  padding: 40px 56px;
  box-shadow: none;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Section header (inside content) */
.section-kicker {
  margin: 0 0 6px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #999;
}

.section-title {
  margin: 0 0 28px;
  font-size: 36px;
  letter-spacing: 0.04em;
  color: #333;
  font-weight: 700;
}

/* About layout */
.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.3fr);
  gap: 40px;
  align-items: flex-start;
}

.about-text p {
  margin: 0 0 14px;
  line-height: 1.7;
  font-size: 16px;
}

.about-list {
  margin: 10px 0 0;
  padding-left: 18px;
  line-height: 1.7;
  font-size: 16px;
}

.about-photo img {
  width: 100%;
  border-radius: 6px;
  display: block;
  object-fit: cover;
}

/* Project layout */
.project-description {
  margin: 0 0 22px;
  line-height: 1.7;
  font-size: 16px;
}

.project-image {
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.18);
}

.project-image img {
  display: block;
  width: 100%;
  height: auto;
}

/* Footer nav */
.footer-nav {
  margin-top: 18px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.primary-btn,
.secondary-btn {
  border-radius: 999px;
  border: none;
  padding: 10px 22px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  cursor: pointer;
}

.primary-btn {
  background: var(--accent-green);
  color: #000;
}

.primary-btn:hover {
  background: #00b44a;
}

.secondary-btn {
  background: transparent;
  color: #333;
}

.secondary-btn:hover {
  background: rgba(0, 0, 0, 0.04);
}

.primary-btn:disabled,
.secondary-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

/* Micro-animación al cambiar de sección/proyecto */
.fade-in {
  animation: fadeInUp 0.35s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 1200px) {
  .content {
    padding: 28px 28px;
  }

  .content-inner {
    padding: 32px 32px;
  }

  .section-title {
    font-size: 32px;
  }
}

@media (max-width: 900px) {
  .about-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .about-photo {
    order: -1;
  }
}

@media (max-width: 768px) {
  .layout {
    flex-direction: column;
  }

  .topbar {
    display: flex;
  }

  .sidebar {
    display: none;
    width: 100%;
  }

  .sidebar.open {
    display: flex;
  }

  .content {
    padding: 16px;
  }

  .content-inner {
    padding: 20px 16px 24px;
  }

  .section-title {
    font-size: 26px;
  }

  .nav-item {
    font-size: 14px;
  }
}


/* Contact section */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.4fr);
  gap: 32px;
  align-items: flex-start;
  margin-top: 8px;
}

.contact-text {
  margin: 0 0 16px;
  line-height: 1.7;
  font-size: 16px;
}

.contact-data {
  margin: 0;
  line-height: 1.7;
  font-size: 15px;
}

.contact-data a {
  color: var(--accent-green);
  text-decoration: none;
}

.contact-data a:hover {
  text-decoration: underline;
}

.contact-form {
  background: #fafafa;
  border-radius: 8px;
  padding: 20px 22px;
  border: 1px solid #e0e0e0;
}

.form-row {
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row label {
  font-size: 14px;
  font-weight: 600;
  color: #444;
}

.form-row input,
.form-row textarea {
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--accent-green);
  box-shadow: 0 0 0 1px rgba(0, 200, 83, 0.3);
}

.contact-submit {
  margin-top: 4px;
  align-self: flex-start;
}

/* Responsive contact */
@media (max-width: 900px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

/* Cuenta Express toggle */
.cx-toggle-container {
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  background: #111;
  margin: 12px 0 18px;
  gap: 4px;
}

.cx-toggle-button {
  border: none;
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  background: transparent;
  color: #eee;
  transition: background 0.18s ease, color 0.18s ease;
}

.cx-toggle-button.active {
  background: var(--accent-green);
  color: #041016;
}

.cx-panel {
  margin-top: 8px;
}

.cx-panel-label {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #555;
}

.cx-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.cx-grid img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.cx-panel-hidden {
  display: none;
}

.cx-panel-visible {
  display: block;
}

/* Fridays case study */
.fridays-case {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 12px;
}

.fridays-block {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.4fr);
  gap: 20px;
  align-items: center;
}

.fridays-text h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.fridays-text p {
  margin: 0;
  line-height: 1.7;
  font-size: 15px;
}

.fridays-images {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.fridays-images img {
  flex: 1 1 220px;
  max-width: 100%;
  border-radius: 8px;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.18);
}

.fridays-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

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