/* ============================================
   onlinemepcobill.pk — Main Stylesheet
   Colors: MEPCO Official Blue + Green
   ============================================ */

:root {
  --blue:        #003087;
  --blue-dark:   #002060;
  --blue-light:  #0050b3;
  --green:       #00a651;
  --green-dark:  #007a3d;
  --green-light: #00c962;
  --white:       #ffffff;
  --gray-bg:     #f4f7fc;
  --gray-light:  #e8edf5;
  --gray-mid:    #a0aec0;
  --gray-text:   #4a5568;
  --dark:        #1a202c;
  --shadow-sm:   0 2px 8px rgba(0,48,135,0.08);
  --shadow-md:   0 4px 20px rgba(0,48,135,0.12);
  --shadow-lg:   0 8px 40px rgba(0,48,135,0.16);
  --radius:      10px;
  --radius-lg:   16px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Hind', 'Segoe UI', sans-serif;
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
  font-size: 16px;
}

a { color: var(--blue); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--green); }

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── NAVBAR ── */
.navbar {
  background: var(--blue-dark);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-family: 'Mukta', sans-serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.5px;
}

.navbar-brand .bolt {
  background: var(--green);
  width: 34px; height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 18px;
  flex-shrink: 0;
}

.navbar-brand span.site-name { color: var(--white); }
.navbar-brand span.site-name em { color: var(--green-light); font-style: normal; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}

.nav-links a:hover, .nav-links a.active {
  background: rgba(255,255,255,0.1);
  color: var(--white);
}

.nav-links a.active { color: var(--green-light); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 50%, var(--blue-light) 100%);
  padding: 60px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(0,166,81,0.15) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.05) 0%, transparent 40%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-text h1 {
  font-family: 'Mukta', sans-serif;
  font-size: 38px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero-text h1 span { color: var(--green-light); }

.hero-text p {
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  margin-bottom: 28px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 24px;
}

.stat {
  text-align: center;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 14px 20px;
  backdrop-filter: blur(4px);
}

.stat .num {
  font-family: 'Mukta', sans-serif;
  font-size: 26px;
  font-weight: 800;
  color: var(--green-light);
  line-height: 1;
}

.stat .lbl {
  font-size: 11px;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

/* ── BILL CHECKER CARD ── */
.checker-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 36px 32px;
  position: relative;
}

.checker-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--green), var(--blue-light));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.checker-card h2 {
  font-family: 'Mukta', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 6px;
}

.checker-card p.sub {
  font-size: 13px;
  color: var(--gray-mid);
  margin-bottom: 24px;
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-text);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-wrap { position: relative; }

.input-wrap input {
  width: 100%;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  padding: 13px 48px 13px 16px;
  font-size: 17px;
  font-family: 'Courier New', monospace;
  letter-spacing: 2px;
  color: var(--blue-dark);
  font-weight: 600;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: var(--gray-bg);
}

.input-wrap input:focus {
  border-color: var(--blue);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(0,48,135,0.08);
}

.input-wrap input.valid { border-color: var(--green); }
.input-wrap input.invalid { border-color: #e53e3e; }

.input-icon {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-mid);
  font-size: 20px;
}

.hint {
  font-size: 12px;
  color: var(--gray-mid);
  margin-top: 6px;
}

.hint strong { color: var(--blue); }

.btn-check {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  border: none;
  border-radius: var(--radius);
  color: var(--white);
  font-family: 'Mukta', sans-serif;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 15px rgba(0,166,81,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-check:hover {
  background: linear-gradient(135deg, var(--green-light), var(--green));
  box-shadow: 0 6px 20px rgba(0,166,81,0.45);
  transform: translateY(-1px);
}

.btn-check:disabled {
  background: var(--gray-light);
  color: var(--gray-mid);
  box-shadow: none;
  transform: none;
  cursor: not-allowed;
}

.error-msg {
  background: #fff5f5;
  border: 1px solid #fed7d7;
  border-radius: 8px;
  padding: 10px 14px;
  color: #c53030;
  font-size: 13px;
  margin-top: 12px;
  display: none;
}

/* ── HOW IT WORKS ── */
.how-it-works {
  padding: 70px 0;
  background: var(--gray-bg);
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-family: 'Mukta', sans-serif;
  font-size: 30px;
  font-weight: 800;
  color: var(--blue-dark);
  margin-bottom: 10px;
}

.section-title p {
  color: var(--gray-text);
  font-size: 15px;
  max-width: 500px;
  margin: 0 auto;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.step {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.step-num {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Mukta', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  margin: 0 auto 18px;
}

.step h3 {
  font-family: 'Mukta', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 10px;
}

.step p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.6;
}

/* ── FEATURES ── */
.features {
  padding: 70px 0;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature {
  text-align: center;
  padding: 28px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-light);
  transition: all 0.2s;
}

.feature:hover {
  border-color: var(--blue-light);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  font-size: 36px;
  margin-bottom: 14px;
}

.feature h4 {
  font-family: 'Mukta', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 8px;
}

.feature p {
  font-size: 13px;
  color: var(--gray-text);
  line-height: 1.6;
}

/* ── AD SLOTS ── */
.ad-slot {
  background: var(--gray-bg);
  border: 2px dashed var(--gray-light);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--gray-mid);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 32px 0;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── BLOG CARDS ── */
.blog-section { padding: 70px 0; background: var(--gray-bg); }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.blog-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.blog-card-thumb {
  height: 160px;
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

.blog-card-body { padding: 20px; }

.blog-cat {
  display: inline-block;
  background: rgba(0,166,81,0.1);
  color: var(--green-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}

.blog-card h3 {
  font-family: 'Mukta', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 10px;
  line-height: 1.4;
}

.blog-card p {
  font-size: 13px;
  color: var(--gray-text);
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog-card .read-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 6px;
}

.blog-card .read-more:hover { color: var(--green); }

/* ── FOOTER ── */
footer {
  background: var(--blue-dark);
  color: rgba(255,255,255,0.8);
  padding: 50px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand .bolt-sm {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.footer-brand .bolt-sm .icon {
  background: var(--green);
  width: 28px; height: 28px;
  border-radius: 6px;
  display: grid;
  place-items: center;
  font-size: 14px;
}

.footer-brand .bolt-sm span {
  font-family: 'Mukta', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255,255,255,0.65);
  max-width: 280px;
}

.footer-col h4 {
  font-family: 'Mukta', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--green-light); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.disclaimer-box {
  background: rgba(0,0,0,0.2);
  border: 1px solid rgba(255,255,255,0.1);
  border-left: 3px solid var(--green);
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

.disclaimer-box strong { color: rgba(255,255,255,0.85); }

.copyright {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  text-align: center;
}

/* ── INNER PAGE HERO ── */
.page-hero {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  padding: 40px 0;
  text-align: center;
}

.page-hero h1 {
  font-family: 'Mukta', sans-serif;
  font-size: 30px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
}

.page-hero p {
  color: rgba(255,255,255,0.75);
  font-size: 15px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-top: 12px;
}

.breadcrumb a { color: var(--green-light); }
.breadcrumb span { color: rgba(255,255,255,0.4); }

/* ── CONTENT PAGES ── */
.content-wrap {
  max-width: 800px;
  margin: 0 auto;
  padding: 50px 20px 70px;
}

.content-wrap h2 {
  font-family: 'Mukta', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--blue-dark);
  margin: 36px 0 12px;
}

.content-wrap h3 {
  font-family: 'Mukta', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--blue);
  margin: 28px 0 10px;
}

.content-wrap p {
  color: var(--gray-text);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 16px;
}

.content-wrap ul {
  margin: 0 0 16px 20px;
  color: var(--gray-text);
  font-size: 15px;
  line-height: 1.8;
}

.content-wrap ul li { margin-bottom: 6px; }

/* Contact Form */
.contact-form {
  background: var(--gray-bg);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-top: 30px;
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form .fg {
  margin-bottom: 18px;
}

.contact-form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-text);
  margin-bottom: 6px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  padding: 11px 14px;
  font-size: 15px;
  font-family: 'Hind', sans-serif;
  color: var(--dark);
  outline: none;
  background: var(--white);
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--blue);
}

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

.btn-submit {
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 13px 32px;
  font-family: 'Mukta', sans-serif;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 14px rgba(0,48,135,0.3);
}

.btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0,48,135,0.4);
}

/* ── SELECT DROPDOWN ── */
.input-wrap select {
  width: 100%;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  padding: 13px 16px;
  font-size: 15px;
  font-family: 'Hind', sans-serif;
  color: var(--blue-dark);
  font-weight: 600;
  outline: none;
  background: var(--gray-bg);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23003087' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.input-wrap select:focus {
  border-color: var(--blue);
  background-color: var(--white);
  box-shadow: 0 0 0 4px rgba(0,48,135,0.08);
}

/* ── DISCO BADGES ── */
.disco-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--gray-light);
}

.badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  border: 1.5px solid var(--gray-light);
  color: var(--gray-text);
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}

.badge:hover {
  border-color: var(--blue-light);
  color: var(--blue);
  background: rgba(0,48,135,0.05);
}

.badge.active {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .hero-text h1 { font-size: 28px; }
  .steps { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-form .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--blue-dark); flex-direction: column; padding: 16px; gap: 4px; }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .hero { padding: 40px 0 60px; }
  .hero-stats { gap: 12px; }
  .stat { padding: 10px 14px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .checker-card { padding: 24px 18px; }
}