/*
Theme Name: Sino Networks
Theme URI: https://sino-networks.com
Description: A professional industrial IoT theme for Sino Networks, fully compatible with Elementor
Version: 1.0.1
Author: Sino Networks
Author URI: https://sino-networks.com
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: sino-networks
Domain Path: /languages
Requires at least: 6.0
Requires PHP: 7.4
*/

/* ============================================
   RESET AND BASE STYLES
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background-color: #ffffff;
  font-size: 16px;
}

/* Clear default margins */
h1, h2, h3, h4, h5, h6, p, ul, ol, dl, pre, blockquote, form, table {
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.25rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.875rem;
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: #0052CC;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #003d99;
}

button, .button, input[type="button"], input[type="submit"] {
  background-color: #0052CC;
  color: #ffffff;
  border: none;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 0;
  font-family: inherit;
}

button:hover, .button:hover, input[type="button"]:hover, input[type="submit"]:hover {
  background-color: #003d99;
}

/* ============================================
   CONTAINER AND LAYOUT
   ============================================ */

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  box-sizing: border-box;
}

@media (max-width: 1024px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: #ffffff;
  border-bottom: 1px solid #e5e5e5;
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  width: 100%;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 2rem;
}

.navbar-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0052CC;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.navbar-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  justify-content: center;
}

.navbar-menu li {
  margin: 0;
  padding: 0;
}

.navbar-menu a {
  font-size: 0.875rem;
  font-weight: 500;
  color: #1a1a1a;
  display: block;
  padding: 0.5rem 0;
}

.navbar-menu a:hover {
  color: #0052CC;
}

.navbar-actions {
  flex-shrink: 0;
}

.navbar-cta {
  background-color: #0052CC;
  color: #ffffff;
  padding: 8px 24px;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.navbar-cta:hover {
  background-color: #003d99;
}

@media (max-width: 768px) {
  .navbar-menu {
    display: none;
  }
}

/* ============================================
   MAIN CONTENT
   ============================================ */

main {
  margin-top: 64px;
  width: 100%;
  display: block;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
  position: relative;
  width: 100%;
  min-height: 100vh;
  background-color: #000000;
  display: flex;
  align-items: center;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

.hero-background {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.6;
  z-index: 1;
  width: 100%;
  height: 100%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 2;
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 600px;
  padding: 0 2rem;
}

.hero-title {
  color: #ffffff;
  margin-bottom: 2rem;
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.hero-button {
  background-color: #0052CC;
  color: #ffffff;
  margin-bottom: 4rem;
  display: inline-block;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.hero-button:hover {
  background-color: #003d99;
}

.hero-links {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-link {
  color: #4ade80;
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-link:hover {
  color: #22c55e;
}

/* ============================================
   CONTENT SECTIONS
   ============================================ */

section {
  scroll-behavior: smooth;
  width: 100%;
  display: block;
}

.content-section {
  padding: 5rem 0;
  width: 100%;
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  color: #0052CC;
  margin-bottom: 1rem;
}

.section-title p {
  color: #666666;
  font-size: 1.125rem;
  max-width: 800px;
  margin: 0 auto;
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background-color: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  padding: 2rem;
  transition: all 0.2s ease;
  width: 100%;
}

.card:hover {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.card-icon {
  width: 60px;
  height: 60px;
  background-color: #0052CC;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #1a1a1a;
}

.card-text {
  color: #666666;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background-color: #1a1a1a;
  color: #ffffff;
  padding: 3rem 0 1rem;
  width: 100%;
  margin-top: 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
  width: 100%;
}

.footer-section {
  width: 100%;
}

.footer-section h4 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: #ffffff;
}

.footer-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: #b3b3b3;
  font-size: 0.875rem;
}

.footer-section a:hover {
  color: #0052CC;
}

.footer-bottom {
  border-top: 1px solid #333333;
  padding-top: 2rem;
  text-align: center;
  color: #808080;
  font-size: 0.875rem;
  width: 100%;
}

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

@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .content-section {
    padding: 3rem 0;
  }
  
  .section-title {
    margin-bottom: 2rem;
  }
  
  .navbar .container {
    padding: 0 1rem;
  }
}

/* ============================================
   ELEMENTOR COMPATIBILITY
   ============================================ */

.elementor-container {
  max-width: 1280px;
}

.elementor-section {
  padding: 3rem 0;
}

.elementor-widget-container {
  position: relative;
}

/* ============================================
   WP ADMIN BAR ADJUSTMENT
   ============================================ */

body.admin-bar {
  margin-top: 0;
}

body.admin-bar main {
  margin-top: calc(64px + 32px);
}

/* ============================================
   FORM STYLES
   ============================================ */

.sino-contact-form {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #1a1a1a;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #e5e5e5;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #0052CC;
  box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 4px;
}

.form-message.success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.form-message.error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-center {
  text-align: center;
}

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

.text-right {
  text-align: right;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: 0.5rem; }
.pt-2 { padding-top: 1rem; }
.pt-3 { padding-top: 1.5rem; }
.pt-4 { padding-top: 2rem; }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: 0.5rem; }
.pb-2 { padding-bottom: 1rem; }
.pb-3 { padding-bottom: 1.5rem; }
.pb-4 { padding-bottom: 2rem; }

/* ============================================
   WORDPRESS DEFAULT STYLES
   ============================================ */

.wp-caption {
  background: #f1f1f1;
  border: 1px solid #ddd;
  max-width: 100%;
  padding: 5px 3px 10px;
  text-align: center;
}

.wp-caption img {
  border: 0 none;
  height: auto;
  margin: 0;
  max-width: 98.5%;
  padding: 0;
  width: auto;
}

.wp-caption p.wp-caption-text {
  font-size: 11px;
  line-height: 17px;
  margin: 0;
  padding: 0 4px 5px;
}

.aligncenter {
  display: block;
  margin: 0 auto;
}

.alignleft {
  float: left;
  margin-right: 1.5em;
}

.alignright {
  float: right;
  margin-left: 1.5em;
}

img.alignleft,
img.alignright,
img.aligncenter {
  margin-bottom: 1.2em;
}

.wp-smiley {
  margin: 0 !important;
  max-height: 1em;
}

/* ============================================
   CLEARFIX
   ============================================ */

.clearfix::before,
.clearfix::after {
  content: "";
  display: table;
}

.clearfix::after {
  clear: both;
}