/* Color Palette:
   --color-teal: #4DEEE8;      (Biru Tosca)
   --color-neon-blue: #00FFFF;  (Biru Fosfor / Aqua Terang)
   --color-ivory: #FFFFF0;     (Putih Gading)
   --color-gold: #FFD700;       (Emas)
   --color-dark-blue: #002244; (Biru Tua)
   --color-calm-blue: #1A759F; (Biru Tosca Lebih Kalem)
*/

:root {
    --color-teal: #4DEEE8;
    --color-neon-blue: #00FFFF;
    --color-ivory: #FFFFF0;
    --color-gold: #FFD700;
    --color-dark-blue: #002244;
    --color-calm-blue: #1A759F; 
    --font-primary: 'Poppins', sans-serif;
}

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-ivory); /* Text color set to ivory for dark background */
    background-color: var(--color-dark-blue); /* Main background color: Dark Blue */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--color-teal);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--color-neon-blue);
}

h1, h2, h3 {
    margin-bottom: 0.5em;
    font-weight: 600;
}

/* Header and Navigation */
header {
    background-color: var(--color-dark-blue);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--color-calm-blue);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo-container {
    display: flex;
    align-items: center;
}

.crystal-icon {
    width: 30px; /* Adjust size as needed */
    height: 30px;
    margin-right: 10px;
    /* Optional: Add a glow effect to simulate the Phosphor Blue */
    filter: drop-shadow(0 0 5px var(--color-neon-blue));
}

.site-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gold);
}

nav {
    display: flex;
    align-items: center;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 25px;
}

.nav-links a {
    color: var(--color-ivory);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links a:hover {
    color: var(--color-teal);
    border-bottom: 2px solid var(--color-gold);
}

.nav-controls {
    display: flex;
    margin-left: 20px;
}

.nav-button {
    background: none;
    border: none;
    color: var(--color-gold);
    font-size: 1.2rem;
    cursor: pointer;
    margin-left: 10px;
    transition: color 0.3s;
}

.nav-button:hover {
    color: var(--color-neon-blue);
}

.menu-toggle {
    display: none; /* Hidden on desktop */
}

/* Main Content and Sections */
main {
    flex-grow: 1;
}

.content-section {
    padding: 4rem 5%;
    text-align: center;
}

/* Hero Section (Home) */
.hero-section {
    background: linear-gradient(135deg, var(--color-dark-blue) 0%, var(--color-calm-blue) 100%);
    padding: 8rem 5%;
    min-height: 50vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-bottom: 5px solid var(--color-neon-blue);
}

.hero-section h1 {
    font-size: 3rem;
    color: var(--color-ivory);
    text-shadow: 0 0 10px var(--color-neon-blue);
}

.tagline {
    font-size: 1.2rem;
    color: var(--color-teal);
    margin-bottom: 2rem;
}

.cta-button {
    background-color: var(--color-gold);
    color: var(--color-dark-blue);
    padding: 10px 25px;
    border-radius: 5px;
    font-weight: 600;
    text-transform: uppercase;
    transition: background-color 0.3s, transform 0.3s;
}

.cta-button:hover {
    background-color: var(--color-neon-blue);
    color: var(--color-dark-blue);
    transform: translateY(-2px);
}

/* Posts/Feed Section */
#posts h2 {
    color: var(--color-teal);
}

.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.post-card {
    background-color: var(--color-calm-blue);
    padding: 20px;
    border-radius: 10px;
    text-align: left;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
    border-left: 5px solid var(--color-gold);
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 255, 255, 0.2); /* Neon glow on hover */
}

.post-card h3 {
    color: var(--color-gold);
    font-weight: 700;
}

.read-more {
    font-weight: 600;
    color: var(--color-neon-blue);
}

/* Create Section */
.create-section h2 {
    color: var(--color-teal);
    margin-bottom: 2rem;
}

.writing-form {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.writing-form input[type="text"],
.writing-form textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    border: 2px solid var(--color-calm-blue);
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--color-ivory);
    border-radius: 5px;
    resize: vertical;
    font-family: var(--font-primary);
    font-size: 1rem;
}

.writing-form input[type="text"]:focus,
.writing-form textarea:focus {
    border-color: var(--color-neon-blue);
    outline: none;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.form-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

select {
    padding: 10px;
    border: 1px solid var(--color-calm-blue);
    background-color: var(--color-dark-blue);
    color: var(--color-ivory);
    border-radius: 5px;
    font-family: var(--font-primary);
}

.submit-button {
    background-color: var(--color-teal);
    color: var(--color-dark-blue);
    padding: 10px 30px;
    border: none;
    border-radius: 5px;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-button:hover {
    background-color: var(--color-neon-blue);
}

/* Search Bar */
#search-bar {
    background-color: var(--color-dark-blue);
    padding: 1rem 5%;
    border-bottom: 1px solid var(--color-teal);
    display: flex;
    justify-content: center;
    gap: 10px;
}

#search-bar.hidden {
    display: none;
}

#search-bar input {
    width: 70%;
    max-width: 600px;
    padding: 10px;
    border: 1px solid var(--color-calm-blue);
    background-color: var(--color-dark-blue);
    color: var(--color-ivory);
    border-radius: 5px;
}

#search-bar button {
    background-color: var(--color-teal);
    color: var(--color-dark-blue);
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
}

/* Explore Section */
.explore-section h2 {
    color: var(--color-gold);
}

.explore-links {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.explore-link {
    background-color: var(--color-calm-blue);
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: 600;
    transition: background-color 0.3s, color 0.3s;
    border: 1px solid var(--color-teal);
}

.explore-link:hover {
    background-color: var(--color-neon-blue);
    color: var(--color-dark-blue);
}

/* Footer */
footer {
    background-color: var(--color-dark-blue);
    color: var(--color-calm-blue);
    text-align: center;
    padding: 1.5rem 5%;
    border-top: 2px solid var(--color-calm-blue);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links a {
    font-size: 1.5rem;
    margin-left: 15px;
    color: var(--color-gold);
}

.social-links a:hover {
    color: var(--color-neon-blue);
}

/* --- Responsive Design (for Mobile Devices) --- */
@media (max-width: 768px) {
    header {
        padding: 1rem 5%;
    }

    .nav-links {
        display: none; /* Hide nav links by default on mobile */
        flex-direction: column;
        position: absolute;
        top: 60px; /* Adjust based on header height */
        left: 0;
        width: 100%;
        background-color: var(--color-dark-blue);
        border-top: 1px solid var(--color-calm-blue);
        padding: 10px 0;
    }

    .nav-links.active {
        display: flex; /* Show when menu is active */
    }

    .nav-links li {
        text-align: center;
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 10px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .menu-toggle {
        display: block; /* Show menu toggle button */
        background: none;
        border: none;
        color: var(--color-gold);
        font-size: 1.5rem;
        cursor: pointer;
        margin-left: 20px;
    }

    .nav-controls {
        margin-left: 0;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .post-grid {
        grid-template-columns: 1fr; /* Single column on mobile */
    }

    footer {
        flex-direction: column;
        gap: 10px;
    }
}