/* CSS Reset & Global Minimalist Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-color: #f5f5f7; /* Apple light gray */
    --card-color: #ffffff;
    --text-primary: #1d1d1f; /* Premium dark gray */
    --text-secondary: #86868b; /* Soft gray muted text */
    --accent-color: #000000;
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

html {
    scroll-behavior: smooth;
    font-family: var(--font-stack);
    background-color: var(--bg-color);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
}

body {
    line-height: 1.5;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(245, 245, 247, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    height: 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
}

.brand-logo {
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 1px;
    text-decoration: none;
    color: var(--text-primary);
}

.nav-links a {
    font-size: 12px;
    color: var(--text-primary);
    text-decoration: none;
    margin-left: 24px;
    opacity: 0.8;
    transition: var(--transition);
}

.nav-links a:hover {
    opacity: 1;
}

.nav-links a.nav-cta {
    font-weight: 500;
    opacity: 1;
    color: #0066cc;
}

/* Hero Section */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 48px;
    background-color: #ffffff;
}

.hero-container {
    max-width: 760px;
    padding: 0 24px;
}

.hero-tagline {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -1.2px;
    color: var(--text-primary);
    margin-bottom: 24px;
}

@media (max-width: 768px) {
    .hero-title { font-size: 36px; }
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.5;
    margin-bottom: 40px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 400;
    border-radius: 30px;
    text-decoration: none;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: #222222;
}

.btn-secondary {
    color: #0066cc;
    margin-left: 16px;
}

.btn-secondary:hover {
    text-decoration: underline;
}

.btn-white {
    background-color: #ffffff;
    color: #000000;
    font-weight: 500;
}

.btn-white:hover {
    background-color: #f5f5f7;
}

/* Structural Components & Sections */
.section {
    padding: 100px 0;
}

.section-label {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.section-headline {
    font-size: 32px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.body-text {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

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

.section-subheadline {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

/* Grid Layout systems */
.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

@media (max-width: 768px) {
    .section-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* Portfolio Cards */
.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

@media (max-width: 768px) {
    .portfolio-grid { grid-template-columns: 1fr; }
}

.portfolio-card {
    background-color: var(--card-color);
    border-radius: 20px;
    padding: 48px;
    min-height: 320px;
    display: flex;
    align-items: flex-end;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: var(--transition);
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
}

.card-tag {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    color: #0066cc;
    display: block;
    margin-bottom: 12px;
}

.card-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.card-description {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Investor Callout */
.investor-banner {
    background-color: #000000;
    color: #ffffff;
    border-radius: 24px;
    padding: 80px 48px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.banner-title {
    font-size: 36px;
    font-weight: 600;
    letter-spacing: -0.8px;
    margin-bottom: 16px;
}

.banner-text {
    font-size: 16px;
    color: #86868b;
    max-width: 600px;
    margin: 0 auto 32px auto;
    line-height: 1.6;
}

/* Footer Section */
.footer {
    background-color: #000000;
    color: #ffffff;
    padding: 80px 0 40px 0;
    border-top: 1px solid #1d1d1f;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

.footer-logo {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.footer-tagline {
    font-size: 13px;
    color: #86868b;
}

.footer-heading {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #86868b;
    margin-bottom: 16px;
}

.contact-detail {
    font-size: 14px;
    color: #e8e8ed;
    margin-bottom: 8px;
    line-height: 1.4;
}

.contact-detail a {
    color: #2997ff;
    text-decoration: none;
}

.contact-detail a:hover {
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid #1d1d1f;
    padding-top: 24px;
    font-size: 12px;
    color: #86868b;
    text-align: center;
}