/* ============================================
   PUBLISERC.ES - Office Supplies Website
   Modern, Clean, Professional Design
   ============================================ */

/* === ROOT VARIABLES === */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1e40af;
  --secondary-color: #f59e0b;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --white: #ffffff;
  --border-color: #e5e7eb;
  --success: #10b981;
  --error: #ef4444;

  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-heading: 'Arial', sans-serif;

  --transition: all 0.3s ease;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
  --radius: 8px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

ul, ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

/* === HEADER === */
.header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

.header__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
}

.header__logo-img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.header__nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.header__nav-link {
  color: var(--text-dark);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
  pointer-events: none;
}

.header__nav-link:hover::after {
  width: 100%;
}

.header__nav-link--active {
  color: var(--primary-color);
}

/* Mobile Menu Toggle */
.header__menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.header__menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--text-dark);
  transition: var(--transition);
  pointer-events: none;
}

/* === HERO SECTION === */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.95), rgba(30, 64, 175, 0.9));
  color: var(--white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../img/img_e2c737f7.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  z-index: 0;
  pointer-events: none;
}

.hero__container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.hero__content {
  max-width: 600px;
}

.hero__title {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: var(--white);
  text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero__description {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.7;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  font-size: 1rem;
}

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

.btn--primary:hover {
  background-color: #d97706;
  border-color: #d97706;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

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

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

/* === SECTIONS === */
.section {
  padding: 4rem 2rem;
}

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

.section__container {
  max-width: 1200px;
  margin: 0 auto;
}

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.section__title {
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.section__subtitle {
  font-size: 1.125rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* === CARDS === */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card:hover::before {
  transform: scaleX(1);
}

.card__image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card__content {
  padding: 1.5rem;
}

.card__title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
}

.card__description {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
  font-weight: 600;
}

.card__link::after {
  content: '→';
  transition: var(--transition);
  pointer-events: none;
}

.card__link:hover::after {
  transform: translateX(5px);
}

/* === FEATURES === */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature {
  text-align: center;
  padding: 2rem;
  background-color: var(--white);
  border-radius: var(--radius);
  transition: var(--transition);
}

.feature:hover {
  box-shadow: var(--shadow-md);
}

.feature__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--white);
}

.feature__title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
}

.feature__description {
  color: var(--text-light);
}

/* === TEAM === */
.team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.team-member {
  text-align: center;
  background-color: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.team-member:hover {
  box-shadow: var(--shadow-md);
}

.team-member__image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1rem;
  border: 4px solid var(--primary-color);
}

.team-member__name {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.team-member__role {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.team-member__bio {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* === CONTACT FORM === */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--white);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-error {
  color: var(--error);
  font-size: 0.875rem;
  margin-top: 0.25rem;
  display: none;
}

.form-group.error .form-error {
  display: block;
}

.form-group.error .form-input,
.form-group.error .form-textarea,
.form-group.error .form-select {
  border-color: var(--error);
}

/* === MAP === */
.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* === BLOG === */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.blog-card {
  background-color: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.blog-card__image {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.blog-card__content {
  padding: 1.5rem;
}

.blog-card__meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-light);
}

.blog-card__title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.blog-card__title a {
  color: var(--text-dark);
}

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

.blog-card__excerpt {
  color: var(--text-light);
  margin-bottom: 1rem;
}

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

.article__header {
  margin-bottom: 2rem;
}

.article__title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.article__meta {
  display: flex;
  gap: 1.5rem;
  color: var(--text-light);
  font-size: 0.95rem;
}

.article__image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 2rem;
}

.article__content {
  font-size: 1.125rem;
  line-height: 1.8;
}

.article__content h2,
.article__content h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.article__content p {
  margin-bottom: 1.5rem;
}

.article__content ul,
.article__content ol {
  margin-bottom: 1.5rem;
}

.article__content li {
  margin-bottom: 0.5rem;
}

/* === FOOTER === */
.footer {
  background-color: var(--text-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 3rem 2rem 1rem;
}

.footer__container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer__section {
  display: flex;
  flex-direction: column;
}

.footer__title {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.footer__text {
  margin-bottom: 1rem;
  line-height: 1.7;
}

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

.footer__link {
  display: block;
  padding: 0.5rem 0;
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition);
}

.footer__link:hover {
  color: var(--white);
  padding-left: 0.5rem;
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.95rem;
}

/* === COOKIE BANNER === */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(31, 41, 55, 0.98);
  color: var(--white);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-banner__container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.cookie-banner__text {
  flex: 1;
  margin: 0;
}

.cookie-banner__buttons {
  display: flex;
  gap: 1rem;
}

/* === RESPONSIVE DESIGN === */

@media (max-width: 768px) {
  /* Typography */
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }

  /* Header */
  .header__nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--white);
    flex-direction: column;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transform: translateX(-100%);
    transition: var(--transition);
  }

  .header__nav.active {
    transform: translateX(0);
  }

  .header__menu-toggle {
    display: flex;
  }

  .header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }

  .header__menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .header__menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  /* Hero */
  .hero {
    min-height: 500px;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__description {
    font-size: 1.125rem;
  }

  /* Sections */
  .section {
    padding: 3rem 1.5rem;
  }

  /* Cards */
  .cards {
    grid-template-columns: 1fr;
  }

  /* Cookie Banner */
  .cookie-banner__container {
    flex-direction: column;
    text-align: center;
  }

  .cookie-banner__buttons {
    flex-direction: column;
    width: 100%;
  }

  .cookie-banner__buttons .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .header__container {
    padding: 1rem;
  }

  .hero__cta {
    flex-direction: column;
  }

  .hero__cta .btn {
    width: 100%;
  }

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

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

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

/* === UTILITIES === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden { display: none !important; }