/* ==========================================================================
   Lorin Bales - Deep Space Professional Portfolio
   Design System & Styling Tokens
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
    /* Color Tokens - Deep Space Palette */
    --bg-deep: #03050c;
    --bg-dark: #070b19;
    --bg-panel: rgba(13, 20, 38, 0.65);
    --bg-panel-hover: rgba(22, 34, 64, 0.75);
    --border-glass: rgba(255, 255, 255, 0.12);
    --border-glow: rgba(0, 242, 255, 0.4);
    
    /* Typography Tokens */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --font-accent: 'Space Grotesk', sans-serif;
    
    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    /* Accent & Neon Tokens */
    --accent-cyan: #00f2ff;
    --accent-violet: #8a2be2;
    --accent-gold: #fbbf24;
    --accent-rose: #f43f5e;
    
    /* Gradient Tokens */
    --gradient-cosmic: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-violet) 50%, var(--accent-rose) 100%);
    --gradient-gold: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    --gradient-glow: radial-gradient(circle at center, rgba(138, 43, 226, 0.25) 0%, rgba(0, 242, 255, 0.08) 50%, transparent 70%);
    
    /* Shadows & Transitions */
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --shadow-neon: 0 0 25px rgba(0, 242, 255, 0.35);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Background Canvas & Nebula Backdrop */
#space-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: auto;
}

.nebula-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background-image: url('https://storage.googleapis.com/dso-browser.com/astrophotography/picture-7c2fbe54e71f607ffa7b6df1000d7889-original.gif');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.18;
    filter: saturate(1.4) contrast(1.1) blur(3px);
    pointer-events: none;
    transition: opacity 0.8s ease;
}

/* Glassmorphism Panel Utility */
.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 1.25rem;
    box-shadow: var(--shadow-glass);
    transition: var(--transition-smooth);
}

.glass-panel:hover {
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: 0 12px 40px rgba(0, 242, 255, 0.15);
}

.glass-pill {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(0, 242, 255, 0.08);
    border: 1px solid rgba(0, 242, 255, 0.3);
    border-radius: 9999px;
    font-family: var(--font-accent);
    font-size: 0.85rem;
    color: var(--accent-cyan);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 600;
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
}

.text-gradient {
    background: var(--gradient-cosmic);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.text-gold {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.8rem 1.6rem;
    border-radius: 0.75rem;
    font-family: var(--font-accent);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--gradient-cosmic);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(138, 43, 226, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0, 242, 255, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

/* Navigation Bar */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 5%;
    background: rgba(3, 5, 12, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    padding: 0.8rem 5%;
    background: rgba(3, 5, 12, 0.9);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-avatar-mini {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-cyan);
    box-shadow: 0 0 10px rgba(0, 242, 255, 0.4);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.8rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
    padding: 0.3rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-cyan);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-cosmic);
    transition: width 0.3s ease;
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nebula-toggle-btn {
    background: rgba(0, 242, 255, 0.1);
    border: 1px solid rgba(0, 242, 255, 0.5);
    color: var(--accent-cyan);
    padding: 0.4rem 0.9rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-family: var(--font-accent);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.nebula-toggle-btn:hover {
    background: rgba(0, 242, 255, 0.2);
    box-shadow: var(--shadow-neon);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Layout Container */
main {
    position: relative;
    z-index: 10;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 5%;
}

section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 750px;
    margin: 0 auto 4rem auto;
}

.section-header h2 {
    font-size: 2.6rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.15rem;
}

.section-divider {
    width: 60px;
    height: 4px;
    background: var(--gradient-cosmic);
    margin: 1.5rem auto 0 auto;
    border-radius: 2px;
}

/* Hero Section */
.hero-section {
    min-height: calc(100vh - 80px);
    display: grid;
    grid-template-columns: 1.1fr 1.1fr;
    gap: 3rem;
    align-items: center;
    padding-top: 3rem;
}

.hero-badge {
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(3rem, 5vw, 4.5rem);
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2.2vw, 1.5rem);
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 95%;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Hero Multi-Ring Solar System Orbital Frame (5 Orbits) */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 600px;
}

.orbital-system-frame {
    position: relative;
    width: 580px;
    height: 580px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.central-sun-core {
    position: relative;
    z-index: 15;
    width: 155px;
    height: 155px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: var(--transition-smooth);
}

.central-sun-core:hover {
    transform: scale(1.05);
}

.sun-atmosphere {
    position: absolute;
    inset: -15px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 242, 255, 0.4) 0%, rgba(138, 43, 226, 0.3) 60%, transparent 80%);
    filter: blur(12px);
    z-index: -1;
    animation: pulseAtmosphere 4s infinite alternate ease-in-out;
}

.avatar-profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-cyan);
    box-shadow: 0 0 30px rgba(0, 242, 255, 0.5), inset 0 0 15px rgba(0, 0, 0, 0.6);
}

.location-badge {
    position: absolute;
    bottom: -14px;
    background: rgba(3, 5, 12, 0.9);
    border: 1px solid var(--accent-cyan);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-cyan);
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.7);
}

/* Multi-Concentric Orbit Rings (5 Orbits) */
.solar-orbit-path {
    position: absolute;
    border-radius: 50%;
    border: 1px dashed rgba(0, 242, 255, 0.22);
    pointer-events: none;
}

.orbit-1 {
    width: 230px;
    height: 230px;
    border-color: rgba(0, 242, 255, 0.35);
    animation: rotateOrbit 18s linear infinite;
}

.orbit-2 {
    width: 320px;
    height: 320px;
    border-color: rgba(244, 63, 94, 0.3);
    animation: rotateOrbitReverse 26s linear infinite;
}

.orbit-3 {
    width: 410px;
    height: 410px;
    border-color: rgba(251, 191, 36, 0.3);
    animation: rotateOrbit 35s linear infinite;
}

.orbit-4 {
    width: 500px;
    height: 500px;
    border-color: rgba(16, 185, 129, 0.3);
    animation: rotateOrbitReverse 44s linear infinite;
}

.orbit-5 {
    width: 590px;
    height: 590px;
    border-color: rgba(138, 43, 226, 0.35);
    animation: rotateOrbit 55s linear infinite;
}

/* Orbiting Satellites / Moons */
.orbit-satellite {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translate(-50%, -50%);
    pointer-events: auto;
    background: rgba(13, 20, 38, 0.92);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 242, 255, 0.5);
    padding: 0.5rem 0.9rem;
    border-radius: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.65);
    transition: var(--transition-smooth);
    white-space: nowrap;
}

.orbit-1 .orbit-satellite {
    animation: counterRotateOrbit 18s linear infinite;
    border-color: rgba(0, 242, 255, 0.7);
}

.orbit-2 .orbit-satellite {
    animation: counterRotateOrbitReverse 26s linear infinite;
    border-color: rgba(244, 63, 94, 0.7);
}

.orbit-3 .orbit-satellite {
    animation: counterRotateOrbit 35s linear infinite;
    border-color: rgba(251, 191, 36, 0.7);
}

.orbit-4 .orbit-satellite {
    animation: counterRotateOrbitReverse 44s linear infinite;
    border-color: rgba(16, 185, 129, 0.7);
}

.orbit-5 .orbit-satellite {
    animation: counterRotateOrbit 55s linear infinite;
    border-color: rgba(138, 43, 226, 0.7);
}

.orbit-satellite:hover {
    transform: translate(-50%, -50%) scale(1.15);
    border-color: #ffffff;
    box-shadow: var(--shadow-neon);
    z-index: 30;
}

.orbit-satellite .icon {
    font-size: 1.3rem;
}

.sat-details {
    display: flex;
    flex-direction: column;
}

.sat-details strong {
    font-size: 0.82rem;
    color: var(--text-primary);
}

.sat-details span {
    font-size: 0.7rem;
    color: var(--accent-cyan);
}

@keyframes pulseAtmosphere {
    0% { opacity: 0.6; transform: scale(0.96); }
    100% { opacity: 1; transform: scale(1.08); }
}

@keyframes rotateOrbit {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes rotateOrbitReverse {
    0% { transform: rotate(360deg); }
    100% { transform: rotate(0deg); }
}

@keyframes counterRotateOrbit {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(-360deg); }
}

@keyframes counterRotateOrbitReverse {
    0% { transform: translate(-50%, -50%) rotate(-360deg); }
    100% { transform: translate(-50%, -50%) rotate(0deg); }
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text-panel {
    padding: 2.5rem;
}

.about-text-panel h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--accent-cyan);
}

.about-text-panel p {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-glass);
}

.highlight-box h4 {
    font-size: 2rem;
    color: var(--accent-gold);
}

.highlight-box span {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.impact-pillars {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pillar-card {
    padding: 1.8rem;
}

.pillar-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.6rem;
    color: #ffffff;
}

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

/* Skills & Technical Arsenal */
.skills-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 3rem;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    padding: 0.6rem 1.4rem;
    border-radius: 9999px;
    font-family: var(--font-accent);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--gradient-cosmic);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(0, 242, 255, 0.3);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.skill-category-card {
    padding: 2.2rem;
    display: flex;
    flex-direction: column;
}

.skill-category-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
}

.skill-tag {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 0.45rem 1rem;
    border-radius: 0.6rem;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

.skill-tag:hover {
    background: rgba(0, 242, 255, 0.15);
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

/* Projects Showcase Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 2.5rem;
}

.project-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-banner {
    height: 120px;
    padding: 1.5rem;
    display: flex;
    align-items: flex-end;
    position: relative;
    background: linear-gradient(135deg, rgba(13, 20, 38, 0.9), rgba(22, 34, 64, 0.9));
    border-bottom: 1px solid var(--border-glass);
}

.tak-bg { background: linear-gradient(135deg, rgba(251, 191, 36, 0.28), rgba(13, 20, 38, 0.95)); }
.drone-bg { background: linear-gradient(135deg, rgba(16, 185, 129, 0.28), rgba(13, 20, 38, 0.95)); }
.vet-bg { background: linear-gradient(135deg, rgba(0, 242, 255, 0.25), rgba(13, 20, 38, 0.9)); }
.ppg-bg { background: linear-gradient(135deg, rgba(244, 63, 94, 0.25), rgba(13, 20, 38, 0.9)); }
.mavrc-bg { background: linear-gradient(135deg, rgba(138, 43, 226, 0.25), rgba(13, 20, 38, 0.9)); }
.opex-bg { background: linear-gradient(135deg, rgba(251, 191, 36, 0.25), rgba(13, 20, 38, 0.9)); }
.gmd-bg { background: linear-gradient(135deg, rgba(16, 185, 129, 0.25), rgba(13, 20, 38, 0.9)); }

.project-banner-content {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.icon-large {
    font-size: 2rem;
}

.banner-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
}

.project-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.82rem;
    color: var(--accent-cyan);
    font-weight: 600;
    margin-bottom: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-body h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-body p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.8rem;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding-top: 1.2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.project-tech span {
    background: rgba(0, 0, 0, 0.4);
    padding: 0.3rem 0.75rem;
    border-radius: 0.4rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Astrophotography Feature Box */
.astro-feature-box {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    padding: 3rem;
    align-items: center;
}

.astro-text h3 {
    font-size: 2rem;
    margin-bottom: 1.2rem;
}

.astro-text p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.astro-tech-list {
    list-style: none;
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.astro-tech-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.astro-tech-list .bullet {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-cyan);
    margin-top: 0.5rem;
    flex-shrink: 0;
    box-shadow: 0 0 8px var(--accent-cyan);
}

.astro-preview-frame a {
    display: block;
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid var(--border-glass);
    text-decoration: none;
}

.astro-preview-frame img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.astro-preview-frame a:hover img {
    transform: scale(1.05);
}

.astro-caption-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem;
    background: linear-gradient(to top, rgba(3, 5, 12, 0.95), transparent);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    color: #ffffff;
}

.astro-caption-overlay .title {
    font-weight: 700;
    font-size: 1.1rem;
}

.astro-caption-overlay .sub {
    font-size: 0.85rem;
    color: var(--accent-cyan);
}

/* Professional Experience Timeline */
.timeline-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 2.5rem;
}

.timeline-container::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 7px;
    width: 3px;
    background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-violet), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    top: 24px;
    left: -2.5rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-cyan);
    border: 4px solid var(--bg-deep);
    box-shadow: 0 0 12px var(--accent-cyan);
}

.timeline-card {
    padding: 2.2rem;
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.4rem;
}

.timeline-header h3 {
    font-size: 1.4rem;
    color: #ffffff;
}

.timeline-date {
    font-family: var(--font-accent);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-cyan);
    background: rgba(0, 242, 255, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
}

.timeline-company {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--accent-violet);
    margin-bottom: 1.2rem;
}

.timeline-desc {
    color: var(--text-secondary);
    font-size: 0.98rem;
}

/* Certifications Grid */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.cert-card {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.cert-badge-icon {
    font-size: 2.5rem;
    margin-bottom: 1.2rem;
}

.cert-title {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.cert-issuer {
    font-weight: 600;
    color: var(--accent-gold);
    font-size: 0.95rem;
    margin-bottom: 1.2rem;
}

.cert-meta {
    display: flex;
    justify-content: space-between;
    padding-top: 1.2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.82rem;
    font-family: var(--font-accent);
    color: var(--text-muted);
}

/* Publications Banner */
.pub-card {
    padding: 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    background: linear-gradient(135deg, rgba(13, 20, 38, 0.85), rgba(138, 43, 226, 0.15));
}

.pub-content {
    flex: 1;
    min-width: 300px;
}

.pub-content h3 {
    font-size: 1.6rem;
    margin-bottom: 0.8rem;
}

.pub-content p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 760px;
    margin: 0 auto;
    gap: 3.5rem;
    align-items: start;
}

.contact-info-panel h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.contact-info-panel p {
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1.2rem 1.5rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

.contact-item:hover {
    background: rgba(0, 242, 255, 0.08);
    border-color: var(--accent-cyan);
    transform: translateX(6px);
}

.contact-item .icon {
    font-size: 1.6rem;
}

.contact-item .details {
    display: flex;
    flex-direction: column;
}

.contact-item .details span {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.contact-item .details strong {
    font-size: 1rem;
    color: #ffffff;
}

.contact-form-wrapper {
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-family: var(--font-accent);
}

.form-control {
    width: 100%;
    padding: 0.85rem 1.2rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 242, 255, 0.2);
}

.form-status {
    padding: 1rem;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.5);
    color: #6ee7b7;
}

/* Footer */
footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(3, 5, 12, 0.95);
    padding: 4rem 5% 2rem 5%;
    margin-top: 6rem;
    position: relative;
    z-index: 10;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
    max-width: 1300px;
    margin: 0 auto 3rem auto;
}

.footer-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
}

.footer-links {
    display: flex;
    gap: 1.8rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--accent-cyan);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Responsive Queries */
@media (max-width: 1200px) {
    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
        margin-bottom: 2rem;
        height: 520px;
    }

    .orbital-system-frame {
        transform: scale(0.85);
    }
}

@media (max-width: 1024px) {
    .about-grid, .astro-feature-box, .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 75px;
        left: 0;
        width: 100%;
        background: rgba(3, 5, 12, 0.98);
        flex-direction: column;
        padding: 2.5rem 0;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border-glass);
        transform: translateY(-150%);
        transition: transform 0.4s ease;
    }

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

    .mobile-toggle {
        display: block;
    }

    section {
        padding: 4rem 0;
    }

    .section-header h2 {
        font-size: 2.2rem;
    }

    .timeline-container {
        padding-left: 1.8rem;
    }

    .pub-card {
        padding: 2rem;
    }

    .hero-visual {
        height: 400px;
    }

    .orbital-system-frame {
        transform: scale(0.65);
    }
}