/*
Theme Name: HCKV Agency
Theme URI: https://hckvagency.com
Author: Huỳnh Châu Khánh Vũ
Author URI: mailto:admin@hckvagency.com
Description: WordPress theme demo cho HCKV Agency.
Version: 1.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: hckvagency
*/

:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-strong: #1c2232;
  --text: #1f2937;
  --muted: #55617b;
  --primary: #2862ff;
  --primary-soft: #e6eeff;
  --border: rgba(34, 49, 86, 0.08);
  --radius: 24px;
  --shadow: 0 20px 70px rgba(15, 23, 42, 0.09);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.logo span {
  color: var(--primary);
}

.main-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.main-nav a {
  color: var(--muted);
  font-weight: 500;
}

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  cursor: pointer;
  gap: 6px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
}

.hero {
  padding: 5rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 1rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 4vw, 4.25rem);
  margin: 0;
  line-height: 1.02;
}

.hero p {
  max-width: 40rem;
  margin: 1.5rem 0 2rem;
  color: var(--muted);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  border-radius: 999px;
  padding: 0.95rem 1.6rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-secondary {
  background: #fff;
  color: var(--surface-strong);
  border: 1px solid rgba(34, 49, 86, 0.1);
}

.hero-card {
  background: linear-gradient(180deg, rgba(40,98,255,0.12), rgba(255,255,255,0.95));
  border: 1px solid rgba(40, 98, 255, 0.16);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.hero-card h2 {
  margin-top: 0;
  font-size: 1.75rem;
}

.hero-card p {
  margin: 1rem 0 0;
  color: var(--muted);
}

.hero-image {
  height: 300px;
  border-radius: var(--radius);
  background: url('https://images.unsplash.com/photo-1460925895917-afdab827c52f?w=400&h=300&fit=crop&crop=center') no-repeat center center;
  background-size: cover;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.section {
  padding: 4rem 0;
}

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

.section-heading h2 {
  font-size: clamp(2rem, 3vw, 2.8rem);
}

.service-grid,
.process-grid,
.testimonial-grid {
  display: grid;
  gap: 1.5rem;
}

.service-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-card,
.process-step,
.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.service-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}

.marketing-platforms {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.marketing-platforms img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.service-card h3,
.process-step h3,
.testimonial-card strong {
  margin: 0 0 1rem;
  font-size: 1.2rem;
}

.service-card p,
.process-step p,
.testimonial-card p {
  margin: 0;
  color: var(--muted);
}

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin-bottom: 1rem;
  border: 2px solid var(--primary-soft);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.about-image {
  min-height: 420px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, #e9efff 0%, #ffffff 100%), url('https://images.unsplash.com/photo-1552664730-d307ca884978?w=600&h=400&fit=crop&crop=center');
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}

.about-list {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1rem;
}

.about-list li {
  background: rgba(40,98,255,0.08);
  padding: 1rem 1.2rem;
  border-radius: 16px;
  color: var(--surface-strong);
}

.process-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.process-step span {
  display: inline-flex;
  width: 2.5rem;
  height: 2.5rem;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  margin-bottom: 1rem;
}

.testimonial-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.testimonial-card strong {
  display: block;
  margin-top: 1.5rem;
}

.testimonial-card span {
  color: var(--muted);
  font-size: 0.95rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.contact-info {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.contact-info div {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem;
}

.contact-info span {
  font-size: 1.3rem;
  margin-top: 0.2rem;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.7rem;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem 1.1rem;
  background: #fff;
  color: var(--text);
}

.contact-form textarea {
  resize: vertical;
}

.form-note {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 0.5rem;
}

.site-footer {
  padding: 2rem 0;
  background: #10151f;
  color: #d7dfe9;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.footer-links a {
  color: #cfd8f5;
}

@media (max-width: 940px) {
  .service-grid,
  .process-grid,
  .testimonial-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .header-inner {
    flex-wrap: wrap;
  }

  .main-nav {
    position: fixed;
    inset: 5rem 1rem auto auto;
    flex-direction: column;
    width: calc(100% - 2rem);
    background: rgba(255,255,255,0.98);
    padding: 1.5rem;
    border-radius: 24px;
    box-shadow: 0 30px 60px rgba(15, 23, 42, 0.16);
    transform: translateY(-120%);
    transition: transform 0.25s ease;
    pointer-events: none;
    opacity: 0;
  }

  .main-nav.open {
    transform: translateY(0);
    pointer-events: auto;
    opacity: 1;
  }

  .main-nav a {
    padding: 0.75rem 0;
  }

  .nav-toggle {
    display: flex;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}