/* 
   Pumiceum Corporate Theme 
   Style: Premium, Industrial, Dark Mode
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=Playfair+Display:wght@700&display=swap');

:root {
    --dark-navy: #020c1b;
    --navy: #0a192f;
    --light-navy: #112240;
    --lightest-navy: #233554;
    --navy-shadow: rgba(2, 12, 27, 0.7);
    --slate: #8892b0;
    --light-slate: #a8b2d1;
    --lightest-slate: #ccd6f6;
    --white: #e6f1ff;
    --green: #64ffda;
    /* Teal Accent for Nanotech feel */
    --gold: #ffc107;
    /* Secondary accent for 'Value' */

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Playfair Display', serif;

    --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

html {
    scroll-behavior: smooth;
    width: 100%;
}

body {
    background-color: var(--navy);
    color: var(--slate);
    font-family: var(--font-sans);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--lightest-slate);
    font-family: var(--font-heading);
    margin: 0 0 1rem 0;
    font-weight: 700;
    line-height: 1.1;
}

h1 {
    font-size: clamp(40px, 8vw, 80px);
}

h2 {
    font-size: clamp(26px, 5vw, 42px);
    color: var(--white);
}

h3 {
    font-size: 24px;
    color: var(--white);
}

p {
    margin-bottom: 20px;
}

a {
    color: var(--green);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--white);
}

ul {
    list-style: none;
}

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

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.text-center {
    text-align: center;
}

.text-green {
    color: var(--green);
}

.section-padding {
    padding: 100px 0;
}

.btn {
    display: inline-block;
    background-color: transparent;
    border: 1px solid var(--green);
    color: var(--green);
    padding: 1rem 2rem;
    font-size: 14px;
    font-family: var(--font-sans);
    border-radius: 4px;
    cursor: pointer;
    margin-top: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

/* Header & Nav */
header {
    height: 130px;
    /* Increased from 100px */
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(10, 25, 47, 0.95);
    /* Increased opacity for better readability */
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 10px 30px -10px var(--navy-shadow);
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    height: 80px;
    /* Increased size */
    width: 80px;
    /* Forced 80x80 square */
    object-fit: cover;
    /* Ensures image covers circle without distortion */
    border-radius: 50%;
    margin-top: 5px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    color: var(--white);
    letter-spacing: 1px;
    font-weight: bold;
}

.nav-links {
    display: flex;
    gap: 15px;
    /* Reduced from 30px */
}

.nav-links li a {
    font-size: 14px;
    /* Increased to 14px */
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--lightest-slate);
    white-space: nowrap;
    font-weight: 700;
    /* Bolder */
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--green);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--green);
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding-top: 100px;
    /* offset for fixed header */
}

.hero h1 {
    margin-top: 20px;
}

.hero-subtitle {
    color: var(--green);
    font-family: var(--font-sans);
    font-size: 16px;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.hero-desc {
    max-width: 600px;
    font-size: 18px;
    color: var(--slate);
}

/* Feature Cards (Grid) */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 50px;
}

.feature-card {
    background-color: var(--light-navy);
    padding: 40px 30px;
    border-radius: 8px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--green);
    box-shadow: 0 20px 30px -15px var(--navy-shadow);
}

.feature-card h3 {
    margin-bottom: 20px;
    color: var(--lightest-slate);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 20px;
    color: var(--green);
}

/* Content Sections (Split layout) */
.split-section {
    display: flex;
    align-items: center;
    gap: 50px;
    margin-bottom: 100px;
}

.split-section.reverse {
    flex-direction: row-reverse;
}

.split-content {
    flex: 1;
}

.split-image {
    flex: 1;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
}

.split-image img {
    width: 100%;
    height: auto;
    filter: grayscale(20%) contrast(1.1);
    transition: var(--transition);
}

.split-image:hover img {
    filter: none;
}

/* Investors / Data items */
.data-item {
    border-left: 3px solid var(--green);
    padding-left: 20px;
    margin-bottom: 30px;
}

.data-item h4 {
    color: var(--white);
    font-size: 20px;
    margin-bottom: 10px;
}

/* News List */
.news-item {
    border-bottom: 1px solid var(--lightest-navy);
    padding: 30px 0;
}

.news-item:last-child {
    border-bottom: none;
}

.news-date {
    color: var(--green);
    font-family: var(--font-sans);
    font-size: 14px;
    margin-bottom: 10px;
}

.news-title {
    font-size: 22px;
    color: var(--lightest-slate);
    margin-bottom: 15px;
}

/* Footer */
footer {
    background-color: var(--light-navy);
    /* Slightly lighter than body */
    padding: 50px 0;
    text-align: center;
    color: var(--slate);
    font-size: 14px;
}

.social-links {
    margin-bottom: 20px;
}

.social-links a {
    margin: 0 10px;
    font-size: 20px;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1400px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100px;
        right: 0;
        background-color: var(--light-navy);
        width: 100%;
        flex-direction: column;
        padding: 20px;
        text-align: center;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .split-section {
        flex-direction: column !important;
    }

    h1 {
        font-size: 40px;
    }
}