/* ==========================================================================
   Variables & Reset
   ========================================================================== */
   :root {
    /* Color Palette - Premium Earth-tone & Forest Green */
    --primary-color: #2C5F2D; /* Forest Green */
    --primary-dark: #1f4220;
    --secondary-color: #D4B895; /* Earth Sand/Beige */
    --accent-color: #A3B18A;
    
    --bg-light: #F9F8F6;
    --bg-white: #FFFFFF;
    
    --text-main: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    
    --border-color: #E5E5E5;
    
    /* Fonts */
    --font-heading: 'Noto Serif KR', serif;
    --font-body: 'Pretendard Variable', Pretendard, -apple-system, sans-serif;
    
    /* Layout */
    --max-width: 1500px;
    --header-height: 80px;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
}

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

ul {
    list-style: none;
}

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

.bg-light { background-color: var(--bg-light); }
.text-center { text-align: center; }

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent;
    transition: var(--transition);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

#main-header.scrolled {
    background-color: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 45px;
    width: auto;
    border-radius: 50%;
    background-color: transparent;
    padding: 0;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    transition: var(--transition);
    white-space: nowrap;
}

#main-header.scrolled .logo-text {
    color: var(--primary-color);
}

.logo-accent {
    color: var(--secondary-color);
}

.main-nav .nav-links {
    display: flex;
    gap: 40px;
    white-space: nowrap;
}

.nav-links li a {
    font-size: 1rem;
    font-weight: 500;
    color: #fff;
    position: relative;
    padding: 10px 0;
    transition: var(--transition);
}

#main-header.scrolled .nav-links li a {
    color: var(--text-main);
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

.nav-links li a:hover::after,
.nav-links li a.active::after {
    width: 100%;
}

/* Dropdown Styles */
.nav-links li.has-dropdown {
    position: relative;
}
.nav-links .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: var(--bg-white);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    list-style: none;
    padding: 10px 0;
    margin: 0;
    min-width: 150px;
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.nav-links li.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.nav-links .dropdown-menu li {
    margin: 0;
}
.nav-links .dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    font-size: 0.95rem;
    color: var(--text-main) !important;
}
.nav-links .dropdown-menu li a:hover {
    background-color: #f5f5f5;
    color: var(--primary-color) !important;
}

.btn-header-register {
    background-color: transparent;
    color: #fff;
    border: 1px solid #fff;
    padding: 8px 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

#main-header.scrolled .btn-header-register {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.btn-header-register:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: #fff;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: #fff;
    transition: var(--transition);
}

#main-header.scrolled .mobile-menu-btn span {
    background-color: var(--text-main);
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transform: translateY(-150%);
    transition: transform 0.4s ease;
    z-index: 999;
}

.mobile-nav.active {
    transform: translateY(0);
}

.mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mobile-nav a {
    display: block;
    padding: 10px;
    font-size: 1.1rem;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
}

/* Mobile Dropdown */
.mobile-nav .dropdown-menu {
    position: static;
    background: rgba(255,255,255,0.05);
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    padding: 0;
    margin: 0;
    display: block;
}
.mobile-nav .dropdown-menu li a {
    padding-left: 40px;
    font-size: 1.05rem;
    color: var(--text-light) !important;
    border-bottom: none;
}

.mobile-nav-register {
    color: var(--primary-color) !important;
    font-weight: 700 !important;
    border-bottom: none !important;
    text-align: center;
    background: var(--bg-light);
    margin-top: 10px;
    border-radius: 4px;
}

/* ==========================================================================
   Intro Page & Sub Page Specific
   ========================================================================== */
.intro-page {
    overflow: hidden;
    height: 50vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    position: relative;
}

.intro-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: url('hero_bg.png');
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.intro-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(44, 95, 45, 0.7));
    z-index: -1;
}

.intro-content {
    z-index: 10;
    padding: 0 20px;
}

.intro-title {
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 300;
    margin-bottom: 20px;
    line-height: 1.3;
}

.intro-top-text {
    display: inline-block;
    white-space: nowrap;
    font-size: clamp(12px, 3.5vw, 2.5rem);
    margin-bottom: 10px;
}

.intro-title strong {
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
}

.intro-subtitle {
    font-size: clamp(12px, 2.5vw, 1.3rem);
    margin-bottom: 50px;
    opacity: 0.9;
    word-break: keep-all;
}

.hero-badge {
    display: inline-block;
    padding: clamp(4px, 1vw, 5px) clamp(10px, 3vw, 15px);
    border: 1px solid #fff;
    color: #fff;
    font-size: clamp(11px, 2vw, 0.9rem);
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.btn-intro {
    display: inline-block;
    background-color: transparent;
    color: #fff;
    padding: clamp(12px, 3vw, 18px) clamp(30px, 6vw, 50px);
    font-size: clamp(14px, 2.5vw, 1.2rem);
    transition: var(--transition);
    border: 1px solid #fff;
    font-weight: 600;
}

.btn-intro:hover {
    background-color: #fff;
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Sub-page Specific Elements */
.sub-page #main-header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
}

.sub-page .logo-text, .sub-page .nav-links li a {
    color: var(--text-main);
}

.sub-page .btn-header-register {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.sub-page .mobile-menu-btn span {
    background-color: var(--text-main);
}

.sub-hero {
    height: 400px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    background-size: cover;
    background-position: center;
    margin-top: var(--header-height);
}

.sub-hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
}

.sub-hero-content {
    position: relative;
    z-index: 10;
}

.sub-hero-content h2 {
    font-size: 3.5rem;
    margin-bottom: 10px;
}

.sub-hero-content p {
    font-size: 1.3rem;
    color: var(--secondary-color);
}

/* ==========================================================================
   Sections General
   ========================================================================== */
.section {
    padding: 120px 0;
}

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-container.wide {
    max-width: 1600px;
}

.section-header {
    margin-bottom: 60px;
}

.section-subtitle {
    display: block;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-main);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* ==========================================================================
   Project Section
   ========================================================================== */
.content-grid {
    display: grid;
    gap: 60px;
}

.content-grid.two-cols {
    grid-template-columns: 1fr 1fr;
    align-items: center;
}

.content-title {
    font-size: 2rem;
    margin-bottom: 20px;
}

.text-content p {
    color: var(--text-light);
    margin-bottom: 30px;
    font-size: 1.05rem;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 500;
}

.feature-list li span {
    color: var(--secondary-color);
}

.image-placeholder {
    width: 100%;
    height: 500px;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-muted);
    font-size: 1.2rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

/* ==========================================================================
   Location Section
   ========================================================================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.card-img {
    height: 250px;
    width: 100%;
    /* Background colors defined inline for placeholders */
}

.card-body {
    padding: 30px;
}

.card-body h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.card-body p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ==========================================================================
   Master Plan Section
   ========================================================================== */
.masterplan-wrapper {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
}

.plan-img {
    width: 100%;
    display: block;
    border: 10px solid #fff;
}

.hotspot {
    position: absolute;
    width: 30px;
    height: 30px;
    transform: translate(-50%, -50%);
    cursor: pointer;
    z-index: 10;
}

.pulse {
    width: 20px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 0 rgba(44, 95, 45, 0.4);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(44, 95, 45, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(44, 95, 45, 0); }
    100% { box-shadow: 0 0 0 0 rgba(44, 95, 45, 0); }
}

.tooltip {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translate(-50%, -100%);
    background-color: rgba(255, 255, 255, 0.95);
    padding: 15px 20px;
    border-left: 3px solid var(--primary-color);
    width: max-content;
    max-width: 250px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    pointer-events: none;
}

.hotspot:hover .tooltip {
    opacity: 1;
    visibility: visible;
    top: -20px;
}

.tooltip strong {
    display: block;
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.tooltip span {
    font-size: 0.9rem;
    color: var(--text-light);
    display: block;
    white-space: normal;
}

/* ==========================================================================
   Community Section
   ========================================================================== */
.infra-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.infra-item {
    background-color: var(--bg-white);
    padding: 40px 30px;
    text-align: center;
    border-top: 4px solid var(--secondary-color);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.infra-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.infra-item .icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.infra-item h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.infra-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
#main-footer {
    background-color: #1a1a1a;
    color: #999;
    padding: 60px 0 40px;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #333;
    padding-bottom: 30px;
    margin-bottom: 30px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: #fff;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom p {
    font-size: 0.85rem;
    margin-bottom: 5px;
}

.copyright {
    margin-top: 20px;
    color: #666;
}

/* ==========================================================================
   Floating CTA
   ========================================================================== */
.floating-cta {
    position: fixed;
    bottom: 40px;
    right: 40px;
    background-color: var(--primary-color);
    color: #fff;
    padding: 15px 30px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 25px rgba(44, 95, 45, 0.4);
    cursor: pointer;
    z-index: 900;
    transition: var(--transition);
}

.floating-cta:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(44, 95, 45, 0.5);
}

.cta-text {
    font-weight: 600;
    font-size: 1rem;
}

.cta-icon {
    font-size: 1.2rem;
}

/* ==========================================================================
   Modal Form
   ========================================================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: var(--bg-white);
    width: 100%;
    max-width: 500px;
    padding: 40px;
    border-radius: 8px;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: translateY(0);
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
}

.modal-header {
    margin-bottom: 30px;
    text-align: center;
}

.modal-header h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.modal-header p {
    color: var(--text-light);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-main);
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group.terms {
    margin: 30px 0;
    font-size: 0.9rem;
    color: var(--text-light);
}

.btn-submit {
    width: 100%;
    background-color: var(--primary-color);
    color: #fff;
    padding: 15px;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    background-color: var(--primary-dark);
}

/* ==========================================================================
   Ecosystem Scenarios
   ========================================================================== */
.scenario-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-top: 40px;
}

.scenario-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.scenario-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
    border-color: var(--accent-color);
}

.scenario-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    border-bottom: 2px solid var(--bg-light);
    padding-bottom: 15px;
}

.process-flow {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.process-step {
    background-color: var(--bg-light);
    color: var(--text-main);
    padding: 15px 25px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.05rem;
    border: 1px solid var(--border-color);
    text-align: center;
}

.process-step.highlight {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.process-arrow {
    color: var(--secondary-color);
    font-size: 1.5rem;
    font-weight: bold;
}

/* ==========================================================================
   Register & Admin Page
   ========================================================================== */
.register-layout {
    display: flex;
    gap: 30px;
    margin-top: 20px;
    min-height: 600px;
}

.register-notice {
    background-color: #f8f9fa;
    border-left: 4px solid var(--primary-color);
    padding: 20px 25px;
    border-radius: 4px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.register-notice ul {
    list-style-type: disc;
    margin-left: 20px;
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.register-notice li {
    font-size: 0.95rem;
    line-height: 1.5;
}

.region-sidebar {
    width: 250px;
    flex-shrink: 0;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px 0;
    overflow-y: auto;
    max-height: 700px;
}

.region-tab {
    display: block;
    width: 100%;
    text-align: left;
    padding: 12px 20px;
    background: transparent;
    border: none;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-main);
    cursor: pointer;
    transition: var(--transition);
}

.region-tab:hover, .region-tab.active {
    background: var(--primary-color);
    color: #fff;
}

.subregion-content {
    flex-grow: 1;
}

.subregion-header {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.subregion-header h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.subregion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.subregion-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    transition: var(--transition);
}

.subregion-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    border-color: var(--primary-color);
}

.subregion-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
}

.subregion-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn-register-type {
    padding: 10px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.btn-member {
    background: #fff;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

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

.btn-promoter {
    background: var(--primary-color);
    color: #fff;
    border: 1px solid var(--primary-color);
}

.btn-promoter:hover {
    background: var(--primary-dark);
}

/* Admin Table */
.admin-login-box {
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
}

.admin-login-box h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.admin-table th, .admin-table td {
    border: 1px solid var(--border-color);
    padding: 12px 15px;
    text-align: left;
}

.admin-table th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--primary-dark);
}

.admin-table tr:hover {
    background: #f9f9f9;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge.promoter { background: #e3f2fd; color: #1565c0; }
.badge.member { background: #e8f5e9; color: #2e7d32; }

.badge-active {
    display: inline-block;
    margin-left: 8px;
    padding: 3px 8px;
    border: 1.5px solid #d32f2f;
    color: #d32f2f;
    font-size: 0.8rem;
    font-weight: 800;
    border-radius: 4px;
    vertical-align: middle;
    transform: rotate(-5deg);
    background: transparent;
    letter-spacing: 0.5px;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1550px) {
    .main-nav .nav-links {
        gap: 15px;
    }
    .nav-links li a {
        font-size: 0.85rem;
        padding: 5px 0;
    }
    .btn-header-register {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    .logo-text {
        font-size: 1.2rem;
    }
}

@media (max-width: 1300px) {
    .main-nav {
        display: none;
    }
    .btn-header-register {
        display: none;
    }
    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 1024px) {
    .content-grid.two-cols {
        grid-template-columns: 1fr;
    }
    
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .infra-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .infra-grid {
        grid-template-columns: 1fr;
    }
    
    .floating-cta {
        bottom: 20px;
        right: 20px;
        padding: 12px 20px;
    }
    
    .cta-text {
        font-size: 0.9rem;
    }
    
    .footer-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
}