/*
Theme Name: GSM Receiver
Theme URI: https://gsmreceiver.com
Author: GSM Receiver Team
Author URI: https://gsmreceiver.com
Description: Professional one-page WordPress theme for GSM Receiver products and services
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: gsm-receiver
Tags: one-page, business, e-commerce, responsive, modern
*/

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

:root {
  --background: 0 0% 100%;
  --foreground: 220 15% 20%;
  --primary: 217 91% 60%;
  --primary-foreground: 0 0% 100%;
  --secondary: 220 15% 20%;
  --secondary-foreground: 0 0% 100%;
  --muted: 220 13% 96%;
  --muted-foreground: 220 10% 45%;
  --accent: 355 85% 55%;
  --border: 220 13% 91%;
  --card: 0 0% 100%;
  --tech-gray: 220 15% 96%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: hsl(220, 15%, 20%);
  background-color: hsl(0, 0%, 100%);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s ease;
}

button {
  cursor: pointer;
  border: none;
  font-family: inherit;
}

/* ===========================
   HEADER STYLES
   =========================== */
.site-header {
  background: hsl(0, 0%, 100%);
  border-bottom: 1px solid hsl(220, 13%, 91%);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  padding: 0 2rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-logo img {
  height: 60px;
  width: 60px;
  object-fit: contain;
}

.site-logo .logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: hsl(220, 15%, 20%);
}

.main-navigation {
  display: none;
}

.main-navigation ul {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-navigation a {
  font-weight: 500;
  color: hsl(220, 15%, 20%);
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

.main-navigation a:hover {
  color: hsl(217, 91%, 60%);
}

.mobile-menu-toggle {
  display: block;
  background: none;
  border: none;
  font-size: 1.5rem;
  padding: 0.5rem;
  color: hsl(220, 15%, 20%);
}

.mobile-menu {
  display: none;
  padding: 1rem 2rem;
  background: hsl(0, 0%, 100%);
  border-top: 1px solid hsl(220, 13%, 91%);
}

.mobile-menu.active {
  display: block;
}

.mobile-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-menu li {
  padding: 0.75rem 0;
}

.mobile-menu a {
  display: block;
  font-weight: 500;
  color: hsl(220, 15%, 20%);
  text-transform: uppercase;
  font-size: 0.875rem;
}

@media (min-width: 768px) {
  .main-navigation {
    display: block;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
}

/* ===========================
   HERO SECTION
   =========================== */
.hero-section {
  background: linear-gradient(to bottom, hsl(220, 15%, 96%), hsl(0, 0%, 100%));
  padding: 5rem 1rem;
  text-align: center;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: hsl(220, 15%, 20%);
  color: hsl(0, 0%, 100%);
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-section h1 {
  font-size: 3rem;
  font-weight: 700;
  color: hsl(220, 15%, 20%);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-section p {
  font-size: 1.25rem;
  color: hsl(220, 10%, 45%);
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 0.375rem;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.btn-primary {
  background: hsl(217, 91%, 60%);
  color: hsl(0, 0%, 100%);
}

.btn-primary:hover {
  background: hsl(217, 91%, 55%);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
  background: hsl(220, 15%, 20%);
  color: hsl(0, 0%, 100%);
}

.btn-secondary:hover {
  background: hsl(220, 15%, 15%);
}

@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2rem;
  }
  
  .hero-section p {
    font-size: 1rem;
  }
}

/* ===========================
   FEATURES SECTION
   =========================== */
.features-section {
  padding: 4rem 1rem;
  background: hsl(0, 0%, 100%);
}

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

.feature-card {
  background: hsl(0, 0%, 100%);
  border: 1px solid hsl(220, 13%, 91%);
  border-radius: 0.5rem;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
}

.feature-card:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transform: translateY(-4px);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  background: hsl(217, 91%, 60%, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: hsl(220, 15%, 20%);
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: hsl(220, 10%, 45%);
  font-size: 0.95rem;
}

/* ===========================
   SOLUTIONS SECTION
   =========================== */
.solutions-section {
  padding: 5rem 1rem;
  background: hsl(220, 13%, 96%);
}

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

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: hsl(220, 15%, 20%);
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.125rem;
  color: hsl(220, 10%, 45%);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.solution-card {
  background: hsl(0, 0%, 100%);
  border-radius: 0.5rem;
  padding: 2rem;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.solution-card:hover {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  transform: translateY(-5px);
}

.solution-icon {
  width: 80px;
  height: 80px;
  background: hsl(217, 91%, 60%, 0.1);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.solution-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: hsl(220, 15%, 20%);
  margin-bottom: 1rem;
}

.solution-card p {
  color: hsl(220, 10%, 45%);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .section-header h2 {
    font-size: 2rem;
  }
}

/* ===========================
   TESTIMONIALS SECTION
   =========================== */
.testimonials-section {
  padding: 5rem 1rem;
  background: hsl(0, 0%, 100%);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

.testimonial-card {
  background: hsl(0, 0%, 100%);
  border: 1px solid hsl(220, 13%, 91%);
  border-radius: 0.5rem;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.testimonial-rating {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.star {
  color: hsl(355, 85%, 55%);
  font-size: 1.25rem;
}

.testimonial-card blockquote {
  font-style: italic;
  color: hsl(220, 10%, 45%);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.testimonial-author {
  border-top: 1px solid hsl(220, 13%, 91%);
  padding-top: 1rem;
}

.testimonial-author .name {
  font-weight: 600;
  color: hsl(220, 15%, 20%);
  margin-bottom: 0.25rem;
}

.testimonial-author .location {
  font-size: 0.875rem;
  color: hsl(220, 10%, 45%);
}

/* ===========================
   CTA SECTION
   =========================== */
.cta-section {
  padding: 5rem 1rem;
  background: hsl(217, 91%, 60%);
  text-align: center;
  color: hsl(0, 0%, 100%);
}

.cta-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: hsl(0, 0%, 100%);
}

.cta-section p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.95;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 768px) {
  .cta-section h2 {
    font-size: 2rem;
  }
  
  .cta-section p {
    font-size: 1rem;
  }
}

/* ===========================
   FOOTER SECTION
   =========================== */
.site-footer {
  background: hsl(220, 15%, 20%);
  color: hsl(0, 0%, 100%);
  padding: 3rem 1rem 1.5rem;
}

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

.footer-column h3,
.footer-column h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: hsl(0, 0%, 100%);
}

.footer-column p,
.footer-column a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  line-height: 1.8;
}

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

.footer-column li {
  margin-bottom: 0.75rem;
}

.footer-column a:hover {
  color: hsl(0, 0%, 100%);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 2rem;
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

/* ===========================
   UTILITY CLASSES
   =========================== */
.text-center {
  text-align: center;
}

.mb-4 {
  margin-bottom: 2rem;
}

.mt-4 {
  margin-top: 2rem;
}

.hidden {
  display: none;
}

/* ===========================
   RESPONSIVE ADJUSTMENTS
   =========================== */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .features-grid,
  .solutions-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ===========================
   SMOOTH SCROLLING
   =========================== */
html {
  scroll-behavior: smooth;
}

/* ===========================
   WORDPRESS SPECIFIC
   =========================== */
.alignleft {
  float: left;
  margin-right: 1.5rem;
}

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

.aligncenter {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
}