/*
    Echo Beacon: The Cartographer's Journey - Main Stylesheet
    This CSS file uses a dark, mysterious color palette with glowing accents to evoke echolocation and cave exploration.
    Extensive comments are provided for beginners learning web development.
*/

/* Root variables for easy color and glow management */
:root {
    --bg-main: #10131a;           /* Deep cave background */
    --bg-secondary: #181c25;      /* Slightly lighter for sections */
    --accent-glow: #00ffe7;       /* Main glowing accent (aqua/cyan) */
    --accent-glow2: #7f5cff;      /* Secondary accent (violet) */
    --text-main: #e0e6ed;         /* Main text color */
    --text-muted: #7a8599;        /* Muted text for secondary info */
    --stone: #6c7a89;
    --water: #00bfff;
    --metal: #b8b8d1;
    --crystal: #baffff;
    --danger: #ff3c6f;
    --navbar-height: 64px;
}

/* Reset some default browser styles for consistency */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--bg-main);
    color: var(--text-main);
    font-family: 'Roboto', Arial, sans-serif;
    min-height: 100vh;
    line-height: 1.6;
    /* Subtle background gradient for depth */
    background: linear-gradient(135deg, #10131a 70%, #181c25 100%);
}

/* Navigation Bar */
.navbar {
    height: var(--navbar-height);
    background: rgba(16, 19, 26, 0.98);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    box-shadow: 0 2px 16px 0 rgba(0,0,0,0.25);
    position: sticky;
    top: 0;
    z-index: 100;
}
.logo {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 1.7rem;
    color: var(--accent-glow);
    letter-spacing: 2px;
    text-shadow: 0 0 8px var(--accent-glow2);
    font-weight: 700;
}
.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}
.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-size: 1.1rem;
    position: relative;
    transition: color 0.2s;
}
.nav-links a.active,
.nav-links a:hover {
    color: var(--accent-glow);
}
.nav-links a.active::after,
.nav-links a:hover::after {
    content: '';
    display: block;
    height: 2px;
    width: 100%;
    background: linear-gradient(90deg, var(--accent-glow), var(--accent-glow2));
    box-shadow: 0 0 8px var(--accent-glow2);
    border-radius: 2px;
    margin-top: 2px;
    animation: underline-glow 0.5s;
}
@keyframes underline-glow {
    from { width: 0; opacity: 0; }
    to { width: 100%; opacity: 1; }
}

/* Hero Section */
.hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    background: radial-gradient(ellipse at 50% 30%, #23263a 0%, #10131a 80%);
    position: relative;
    overflow: hidden;
    padding-top: 2rem;
    padding-bottom: 1rem;
}
.hero-content {
    z-index: 2;
    text-align: center;
}
.hero h1 {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}
.hero .glow {
    color: var(--accent-glow);
    text-shadow: 0 0 16px var(--accent-glow2), 0 0 32px var(--accent-glow);
}
.tagline {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}
.cta-button {
    display: inline-block;
    background: linear-gradient(90deg, var(--accent-glow), var(--accent-glow2));
    color: #10131a;
    font-weight: 700;
    padding: 0.9em 2.2em;
    border-radius: 32px;
    font-size: 1.1rem;
    text-decoration: none;
    box-shadow: 0 0 16px var(--accent-glow2);
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
}
.cta-button:hover {
    background: linear-gradient(90deg, var(--accent-glow2), var(--accent-glow));
    transform: scale(1.05);
    box-shadow: 0 0 32px var(--accent-glow);
}

/* Animated Echolocation Waves */
.echo-animation {
    position: absolute;
    left: 50%;
    top: 60%;
    transform: translate(-50%, -50%);
    z-index: 1;
    pointer-events: none;
}
.wave {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 2px solid var(--accent-glow);
    opacity: 0.18;
    transform: translate(-50%, -50%) scale(1);
    animation: echo-pulse 2.5s infinite;
}
.wave1 { animation-delay: 0s; }
.wave2 { animation-delay: 0.8s; }
.wave3 { animation-delay: 1.6s; }
@keyframes echo-pulse {
    0% { opacity: 0.18; transform: translate(-50%, -50%) scale(1); }
    70% { opacity: 0.05; }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(2.2); }
}

/* Concept Section */
.concept {
    background: var(--bg-secondary);
    margin: 1rem auto;
    max-width: 700px;
    border-radius: 18px;
    box-shadow: 0 4px 32px 0 rgba(0,0,0,0.18);
    padding: 2.5rem 2rem 2rem 2rem;
    text-align: center;
    position: relative;
}

/* Demo Section */
.demo-section {
    background: var(--bg-secondary);
    margin: 1rem auto;
    max-width: 600px;
    border-radius: 18px;
    box-shadow: 0 4px 32px 0 rgba(0,0,0,0.18);
    padding: 2.5rem 2rem 2rem 2rem;
    text-align: center;
    height: fit-content;
    position: relative;
}

/* Horizontal Layout Container */
.content-layout {
    display: flex;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    align-items: flex-start;
}

.content-layout .concept {
    flex: 1;
    margin: 1rem 0;
    max-width: none;
    min-height: 450px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.content-layout .demo-section {
    flex: 1;
    margin: 1rem 0;
    max-width: none;
    min-height: 450px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}
.concept h2,
.demo-section h2 {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    color: var(--accent-glow2);
    font-size: 2rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}
.features-list {
    list-style: none;
    margin: 1.5rem 0 1rem 0;
    padding: 0;
}
.features-list li {
    display: flex;
    align-items: center;
    font-size: 1.1rem;
    margin-bottom: 0.7rem;
    color: var(--text-main);
}
.material {
    display: inline-block;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    margin-right: 0.7em;
    box-shadow: 0 0 8px 2px var(--accent-glow2);
}
.stone { background: var(--stone); }
.water { background: var(--water); box-shadow: 0 0 12px 2px var(--water); }
.metal { background: var(--metal); box-shadow: 0 0 12px 2px var(--metal); }
.crystal { background: var(--crystal); box-shadow: 0 0 16px 2px var(--crystal); }
.explore {
    margin-top: 1.5rem;
    font-size: 1.2rem;
    color: var(--accent-glow);
    text-shadow: 0 0 8px var(--accent-glow2);
}

/* Follow/CTA Section */
.follow {
    background: var(--bg-secondary);
    margin: 2rem auto;
    max-width: 1400px;
    border-radius: 18px;
    box-shadow: 0 4px 32px 0 rgba(0,0,0,0.18);
    padding: 2.5rem 2rem;
    text-align: center;
}

.follow-content {
    max-width: 1200px;
    margin: 0 auto;
}

.follow-header h2 {
    color: var(--accent-glow);
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 2.2rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.follow-subtitle {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.follow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.follow-card {
    background: rgba(127, 92, 255, 0.05);
    border: 1px solid rgba(127, 92, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.follow-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-glow), var(--accent-glow2));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.follow-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(127, 92, 255, 0.2);
    border-color: var(--accent-glow);
}

.follow-card:hover::before {
    opacity: 1;
}

.card-header h3,
.card-header h4 {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    color: var(--accent-glow);
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

.card-header p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.input-group {
    display: flex;
    gap: 0.5rem;
    max-width: 400px;
    margin: 0 auto;
}

.follow-form {
    margin: 0;
}
.follow-form input[type="email"] {
    padding: 0.7em 1em;
    border-radius: 24px;
    border: none;
    outline: none;
    font-size: 1rem;
    background: #23263a;
    color: var(--text-main);
    box-shadow: 0 0 8px var(--accent-glow2) inset;
    transition: box-shadow 0.2s;
}
.follow-form input[type="email"]:focus {
    box-shadow: 0 0 16px var(--accent-glow) inset;
}
.follow-form button {
    background: linear-gradient(90deg, var(--accent-glow), var(--accent-glow2));
    color: #10131a;
    font-weight: 700;
    border: none;
    border-radius: 24px;
    padding: 0.7em 1.5em;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 0 12px var(--accent-glow2);
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.follow-form button:hover {
    background: linear-gradient(90deg, var(--accent-glow2), var(--accent-glow));
    box-shadow: 0 0 24px var(--accent-glow);
    transform: scale(1.05);
}
.social-links {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    margin-top: 0.5rem;
}
.social-icon {
    font-size: 1.7rem;
    color: var(--accent-glow2);
    text-decoration: none;
    transition: color 0.2s, text-shadow 0.2s, transform 0.2s;
}
.social-icon:hover {
    color: var(--accent-glow);
    text-shadow: 0 0 12px var(--accent-glow2);
    transform: scale(1.15);
}

.social-media-section {
    margin: 2rem 0 1.5rem 0;
    text-align: center;
}

.social-media-section h3,
.social-media-section h4 {
    color: var(--accent-glow);
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.social-media-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-media-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 0.8em 1.2em;
    border-radius: 16px;
    text-decoration: none;
    color: var(--text-main);
    background: rgba(127, 92, 255, 0.1);
    border: 1px solid rgba(127, 92, 255, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 100px;
    position: relative;
    overflow: hidden;
}

.social-media-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.social-media-btn:hover {
    background: rgba(0, 255, 231, 0.15);
    border-color: var(--accent-glow);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 255, 231, 0.2);
}

.social-media-btn:hover::before {
    left: 100%;
}

.social-media-btn .social-icon {
    font-size: 1.5rem;
    filter: drop-shadow(0 0 4px var(--accent-glow2));
}

.social-media-btn .social-text {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.social-media-btn.instagram:hover {
    background: linear-gradient(135deg, rgba(225, 48, 108, 0.2), rgba(64, 93, 230, 0.2));
    border-color: #e1306c;
}

.social-media-btn.x-twitter:hover {
    background: linear-gradient(135deg, rgba(29, 161, 242, 0.2), rgba(0, 0, 0, 0.2));
    border-color: #1da1f2;
}

.social-media-btn.youtube:hover {
    background: linear-gradient(135deg, rgba(255, 0, 0, 0.2), rgba(0, 0, 0, 0.2));
    border-color: #ff0000;
}

.community-links {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.community-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--accent-glow2), var(--accent-glow));
    color: #10131a;
    text-decoration: none;
    padding: 0.8em 1.5em;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: 0 2px 8px rgba(127, 92, 255, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    min-width: 200px;
    position: relative;
    overflow: hidden;
}

.community-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.community-btn:hover {
    background: linear-gradient(135deg, var(--accent-glow), var(--accent-glow2));
    box-shadow: 0 4px 16px rgba(0, 255, 231, 0.4);
    color: #10131a;
    transform: translateY(-2px);
}

.community-btn:hover::before {
    left: 100%;
}

.community-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 255, 231, 0.3);
}

.btn-icon {
    font-size: 1.1rem;
}

.btn-text {
    font-weight: 600;
}

.community-btn {
    background: linear-gradient(135deg, var(--accent-glow2), var(--accent-glow));
    color: #10131a;
    text-decoration: none;
    padding: 0.6em 1.2em;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 2px 8px rgba(127, 92, 255, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    min-width: 120px;
    position: relative;
    overflow: hidden;
}

.community-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.community-btn:hover {
    background: linear-gradient(135deg, var(--accent-glow), var(--accent-glow2));
    box-shadow: 0 4px 16px rgba(0, 255, 231, 0.4);
    color: #10131a;
    transform: translateY(-2px);
}

.community-btn:hover::before {
    left: 100%;
}

.community-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 255, 231, 0.3);
}

/* Special Thanks Section */
.special-thanks {
    background: var(--bg-secondary);
    margin: 2rem auto;
    max-width: 800px;
    border-radius: 18px;
    box-shadow: 0 4px 32px 0 rgba(0,0,0,0.18);
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.special-thanks::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-glow), var(--accent-glow2), var(--accent-glow));
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.thanks-content h2 {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    color: var(--accent-glow);
    font-size: 2rem;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.thanks-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.patreon-tiers {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.tier {
    background: rgba(127, 92, 255, 0.05);
    border: 1px solid rgba(127, 92, 255, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.tier:hover {
    background: rgba(127, 92, 255, 0.1);
    border-color: var(--accent-glow);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(127, 92, 255, 0.2);
}

.tier h3 {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

.tier.diamond h3 {
    color: #b9f2ff;
    text-shadow: 0 0 8px #b9f2ff;
}

.tier.platinum h3 {
    color: #e5e4e2;
    text-shadow: 0 0 8px #e5e4e2;
}

.tier.gold h3 {
    color: #ffd700;
    text-shadow: 0 0 8px #ffd700;
}

.tier.silver h3 {
    color: #c0c0c0;
    text-shadow: 0 0 8px #c0c0c0;
}

.patreon-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
}

.patreon-name {
    background: rgba(0, 255, 231, 0.1);
    color: var(--accent-glow);
    padding: 0.5em 1em;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(0, 255, 231, 0.3);
    transition: all 0.2s ease;
}

.patreon-name:hover {
    background: rgba(0, 255, 231, 0.2);
    border-color: var(--accent-glow);
    transform: scale(1.05);
}

.support-cta {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(127, 92, 255, 0.2);
}

.support-cta p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.support-btn {
    display: inline-block;
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: white;
    text-decoration: none;
    padding: 0.8em 2em;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 4px 16px rgba(255, 107, 107, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.support-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.support-btn:hover {
    background: linear-gradient(135deg, #ee5a24, #ff6b6b);
    box-shadow: 0 6px 24px rgba(255, 107, 107, 0.4);
    transform: translateY(-2px);
}

.support-btn:hover::before {
    left: 100%;
}

.support-btn:active {
    transform: translateY(0);
}

/* Patreon Page Specific Styles */
.patreon-hero {
    background: radial-gradient(ellipse at 50% 30%, #2a1f3a 0%, #10131a 80%);
}

/* Members Section */
.members-section {
    background: var(--bg-secondary);
    margin: 2rem auto;
    max-width: 1200px;
    border-radius: 18px;
    box-shadow: 0 4px 32px 0 rgba(0,0,0,0.18);
    padding: 2.5rem 2rem;
    text-align: center;
}

.members-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.member-tier {
    background: rgba(127, 92, 255, 0.05);
    border: 2px solid rgba(127, 92, 255, 0.2);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.member-tier::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-glow), var(--accent-glow2));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.member-tier:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 24px rgba(127, 92, 255, 0.2);
    border-color: var(--accent-glow);
}

.member-tier:hover::before {
    opacity: 1;
}

.member-tier .tier-header {
    text-align: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(127, 92, 255, 0.2);
}

.member-tier .tier-header h3 {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

.tier-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.price {
    font-weight: 600;
    color: var(--accent-glow);
}

.member-count {
    font-size: 0.8rem;
    opacity: 0.8;
}

.member-list {
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.no-members {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.95rem;
}

/* Tier-specific member colors */
.member-tier.captain {
    border-color: rgba(185, 242, 255, 0.4);
}

.member-tier.captain:hover {
    border-color: #b9f2ff;
    box-shadow: 0 6px 24px rgba(185, 242, 255, 0.2);
}

.member-tier.captain .tier-header h3 {
    color: #b9f2ff;
    text-shadow: 0 0 8px #b9f2ff;
}

.member-tier.xo {
    border-color: rgba(229, 228, 226, 0.4);
}

.member-tier.xo:hover {
    border-color: #e5e4e2;
    box-shadow: 0 6px 24px rgba(229, 228, 226, 0.2);
}

.member-tier.xo .tier-header h3 {
    color: #e5e4e2;
    text-shadow: 0 0 8px #e5e4e2;
}

.member-tier.engineer {
    border-color: rgba(255, 215, 0, 0.4);
}

.member-tier.engineer:hover {
    border-color: #ffd700;
    box-shadow: 0 6px 24px rgba(255, 215, 0, 0.2);
}

.member-tier.engineer .tier-header h3 {
    color: #ffd700;
    text-shadow: 0 0 8px #ffd700;
}

.member-tier.dive {
    border-color: rgba(0, 191, 255, 0.4);
}

.member-tier.dive:hover {
    border-color: #00bfff;
    box-shadow: 0 6px 24px rgba(0, 191, 255, 0.2);
}

.member-tier.dive .tier-header h3 {
    color: #00bfff;
    text-shadow: 0 0 8px #00bfff;
}

.member-tier.firecontrol {
    border-color: rgba(255, 107, 107, 0.4);
}

.member-tier.firecontrol:hover {
    border-color: #ff6b6b;
    box-shadow: 0 6px 24px rgba(255, 107, 107, 0.2);
}

.member-tier.firecontrol .tier-header h3 {
    color: #ff6b6b;
    text-shadow: 0 0 8px #ff6b6b;
}

.member-tier.seaman {
    border-color: rgba(192, 192, 192, 0.4);
}

.member-tier.seaman:hover {
    border-color: #c0c0c0;
    box-shadow: 0 6px 24px rgba(192, 192, 192, 0.2);
}

.member-tier.seaman .tier-header h3 {
    color: #c0c0c0;
    text-shadow: 0 0 8px #c0c0c0;
}

/* Tiers Section */
.tiers-section {
    background: var(--bg-secondary);
    margin: 2rem auto;
    max-width: 1200px;
    border-radius: 18px;
    box-shadow: 0 4px 32px 0 rgba(0,0,0,0.18);
    padding: 2.5rem 2rem;
    text-align: center;
}

.section-header h2 {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    color: var(--accent-glow);
    font-size: 2.2rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.tiers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.tier-card {
    background: rgba(127, 92, 255, 0.05);
    border: 2px solid rgba(127, 92, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
    text-align: left;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.tier-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-glow), var(--accent-glow2));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tier-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 32px rgba(127, 92, 255, 0.3);
    border-color: var(--accent-glow);
}

.tier-card:hover::before {
    opacity: 1;
}

.tier-header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(127, 92, 255, 0.2);
}

.tier-header h3 {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

.tier-price {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-glow);
    text-shadow: 0 0 8px var(--accent-glow2);
}

.tier-benefits ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tier-benefits li {
    padding: 0.5rem 0;
    color: var(--text-main);
    font-size: 0.95rem;
    line-height: 1.5;
    border-bottom: 1px solid rgba(127, 92, 255, 0.1);
}

.tier-benefits li:last-child {
    border-bottom: none;
}

.tier-description {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(127, 92, 255, 0.05);
    border-radius: 8px;
    border-left: 3px solid var(--accent-glow);
}

.tier-description p {
    color: var(--text-main);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
    font-style: italic;
}

.tier-limit {
    font-size: 0.8rem;
    color: var(--accent-glow2);
    margin-top: 0.3rem;
    font-weight: 600;
}

.tier-benefits strong {
    color: var(--accent-glow);
}

.tier-join-btn {
    display: block;
    width: 100%;
    padding: 1em 2em;
    margin-top: 1.5rem;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tier-join-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.tier-join-btn:hover::before {
    left: 100%;
}

/* Tier-specific colors */
.tier-card.captain {
    border-color: rgba(185, 242, 255, 0.4);
}

.tier-card.captain:hover {
    border-color: #b9f2ff;
    box-shadow: 0 8px 32px rgba(185, 242, 255, 0.3);
}

.tier-card.captain .tier-header h3 {
    color: #b9f2ff;
    text-shadow: 0 0 8px #b9f2ff;
}

.captain-btn {
    background: linear-gradient(135deg, #b9f2ff, #7f5cff);
    color: #10131a;
    box-shadow: 0 4px 16px rgba(185, 242, 255, 0.3);
}

.captain-btn:hover {
    background: linear-gradient(135deg, #7f5cff, #b9f2ff);
    box-shadow: 0 6px 24px rgba(185, 242, 255, 0.4);
    transform: translateY(-2px);
}

.tier-card.xo {
    border-color: rgba(229, 228, 226, 0.4);
}

.tier-card.xo:hover {
    border-color: #e5e4e2;
    box-shadow: 0 8px 32px rgba(229, 228, 226, 0.3);
}

.tier-card.xo .tier-header h3 {
    color: #e5e4e2;
    text-shadow: 0 0 8px #e5e4e2;
}

.xo-btn {
    background: linear-gradient(135deg, #e5e4e2, #7f5cff);
    color: #10131a;
    box-shadow: 0 4px 16px rgba(229, 228, 226, 0.3);
}

.xo-btn:hover {
    background: linear-gradient(135deg, #7f5cff, #e5e4e2);
    box-shadow: 0 6px 24px rgba(229, 228, 226, 0.4);
    transform: translateY(-2px);
}

.tier-card.engineer {
    border-color: rgba(255, 215, 0, 0.4);
}

.tier-card.engineer:hover {
    border-color: #ffd700;
    box-shadow: 0 8px 32px rgba(255, 215, 0, 0.3);
}

.tier-card.engineer .tier-header h3 {
    color: #ffd700;
    text-shadow: 0 0 8px #ffd700;
}

.engineer-btn {
    background: linear-gradient(135deg, #ffd700, #7f5cff);
    color: #10131a;
    box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
}

.engineer-btn:hover {
    background: linear-gradient(135deg, #7f5cff, #ffd700);
    box-shadow: 0 6px 24px rgba(255, 215, 0, 0.4);
    transform: translateY(-2px);
}

.tier-card.dive {
    border-color: rgba(0, 191, 255, 0.4);
}

.tier-card.dive:hover {
    border-color: #00bfff;
    box-shadow: 0 8px 32px rgba(0, 191, 255, 0.3);
}

.tier-card.dive .tier-header h3 {
    color: #00bfff;
    text-shadow: 0 0 8px #00bfff;
}

.dive-btn {
    background: linear-gradient(135deg, #00bfff, #7f5cff);
    color: #10131a;
    box-shadow: 0 4px 16px rgba(0, 191, 255, 0.3);
}

.dive-btn:hover {
    background: linear-gradient(135deg, #7f5cff, #00bfff);
    box-shadow: 0 6px 24px rgba(0, 191, 255, 0.4);
    transform: translateY(-2px);
}

.tier-card.firecontrol {
    border-color: rgba(255, 107, 107, 0.4);
}

.tier-card.firecontrol:hover {
    border-color: #ff6b6b;
    box-shadow: 0 8px 32px rgba(255, 107, 107, 0.3);
}

.tier-card.firecontrol .tier-header h3 {
    color: #ff6b6b;
    text-shadow: 0 0 8px #ff6b6b;
}

.firecontrol-btn {
    background: linear-gradient(135deg, #ff6b6b, #7f5cff);
    color: white;
    box-shadow: 0 4px 16px rgba(255, 107, 107, 0.3);
}

.firecontrol-btn:hover {
    background: linear-gradient(135deg, #7f5cff, #ff6b6b);
    box-shadow: 0 6px 24px rgba(255, 107, 107, 0.4);
    transform: translateY(-2px);
}

.tier-card.seaman {
    border-color: rgba(192, 192, 192, 0.4);
}

.tier-card.seaman:hover {
    border-color: #c0c0c0;
    box-shadow: 0 8px 32px rgba(192, 192, 192, 0.3);
}

.tier-card.seaman .tier-header h3 {
    color: #c0c0c0;
    text-shadow: 0 0 8px #c0c0c0;
}

.seaman-btn {
    background: linear-gradient(135deg, #c0c0c0, #7f5cff);
    color: #10131a;
    box-shadow: 0 4px 16px rgba(192, 192, 192, 0.3);
}

.seaman-btn:hover {
    background: linear-gradient(135deg, #7f5cff, #c0c0c0);
    box-shadow: 0 6px 24px rgba(192, 192, 192, 0.4);
    transform: translateY(-2px);
}

.crew-message {
    background: rgba(127, 92, 255, 0.1);
    border: 1px solid rgba(127, 92, 255, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
    text-align: center;
}

.crew-message p {
    color: var(--text-main);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.crew-message p:last-child {
    margin-bottom: 0;
}

.community-section {
    background: var(--bg-secondary);
    margin: 2rem auto;
    max-width: 1400px;
    border-radius: 18px;
    box-shadow: 0 4px 32px 0 rgba(0,0,0,0.18);
    padding: 2.5rem 2rem;
    text-align: center;
}

.community-header h3 {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    color: var(--accent-glow);
    font-size: 2rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.community-header p {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.community-card {
    background: rgba(127, 92, 255, 0.05);
    border: 1px solid rgba(127, 92, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.community-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-glow), var(--accent-glow2));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.community-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(127, 92, 255, 0.2);
    border-color: var(--accent-glow);
}

.community-card:hover::before {
    opacity: 1;
}

/* Footer */
footer {
    background: transparent;
    color: var(--text-muted);
    text-align: center;
    padding: 1.5rem 0 1rem 0;
    font-size: 1rem;
    letter-spacing: 1px;
}

/* Responsive Design: Mobile First */
@media (max-width: 1000px) {
    .content-layout {
        flex-direction: column;
        gap: 1rem;
        padding: 0 1rem;
    }
    
    .content-layout .concept,
    .content-layout .demo-section {
        max-width: 700px;
        margin: 0 auto;
    }
}

@media (max-width: 700px) {
    .navbar {
        flex-direction: column;
        height: auto;
        padding: 1rem 1rem 0.5rem 1rem;
    }
    .nav-links {
        gap: 1rem;
        flex-direction: column;
        width: 100%;
        align-items: flex-start;
    }
    .hero h1 {
        font-size: 1.5rem;
    }
    .concept, .follow, .demo-section {
        max-width: 98vw;
        padding: 1.2rem 0.5rem;
    }
    .features-list li {
        font-size: 1rem;
    }
    .cta-button {
        font-size: 1rem;
        padding: 0.7em 1.5em;
    }
    .echo-animation .wave {
        width: 120px;
        height: 120px;
    }
    .social-media-links {
        gap: 0.8rem;
    }
    .social-media-btn {
        min-width: 80px;
        padding: 0.6em 1em;
    }
    .social-media-btn .social-icon {
        font-size: 1.3rem;
    }
    .social-media-btn .social-text {
        font-size: 0.7rem;
    }
    .community-links {
        flex-direction: column;
        gap: 0.6rem;
        margin-top: 1.5rem;
    }
    .community-btn {
        min-width: 140px;
        padding: 0.7em 1.4em;
        font-size: 0.95rem;
    }
    .special-thanks {
        max-width: 95vw;
        padding: 1.5rem 1rem;
    }
    .thanks-content h2 {
        font-size: 1.5rem;
    }
    .patreon-tiers {
        gap: 1rem;
    }
    .tier {
        padding: 1rem;
    }
    .tier h3 {
        font-size: 1.1rem;
    }
    .patreon-list {
        gap: 0.5rem;
    }
    .patreon-name {
        font-size: 0.8rem;
        padding: 0.4em 0.8em;
    }
    .support-btn {
        padding: 0.7em 1.5em;
        font-size: 0.9rem;
    }
    .members-section,
    .tiers-section {
        max-width: 95vw;
        padding: 1.5rem 1rem;
    }
    .members-grid,
    .tiers-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .tier-card {
        padding: 1.5rem;
    }
    .tier-header h3 {
        font-size: 1.2rem;
    }
    .tier-price {
        font-size: 1.5rem;
    }
    .tier-benefits li {
        font-size: 0.9rem;
    }
    .tier-join-btn {
        padding: 0.8em 1.5em;
        font-size: 0.95rem;
    }
    .follow,
    .community-section {
        max-width: 95vw;
        padding: 1.5rem 1rem;
    }
    .follow-grid,
    .community-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .follow-card,
    .community-card {
        padding: 1.5rem;
    }
    .follow-header h2,
    .community-header h3 {
        font-size: 1.8rem;
    }
    .input-group {
        flex-direction: column;
        gap: 0.8rem;
    }
    .community-btn {
        min-width: 180px;
        padding: 0.7em 1.4em;
        font-size: 0.9rem;
    }
}

/* Accessibility: Focus outlines for keyboard navigation */
a:focus, button:focus, input:focus {
    outline: 2px solid var(--accent-glow2);
    outline-offset: 2px;
    box-shadow: 0 0 8px var(--accent-glow2);
}