:root {
    --bg-dark: #050505;
    --bg-glass: rgba(255, 255, 255, 0.03);
    --border-glass: rgba(255, 255, 255, 0.08);
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --accent: #ffffff;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.5;
    overflow-x: clip;
    position: relative;
    min-height: 100vh;
}

/* Starfield Canvas */
#starfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -3;
    pointer-events: none;
    background-color: #000000; /* Deep black universe */
}

/* Soft Glows */
.glow-effect {
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 60%);
    border-radius: 50%;
    top: -300px;
    left: -200px;
    z-index: -1;
    pointer-events: none;
}

.glow-effect-2 {
    position: absolute;
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.03) 0%, transparent 60%);
    border-radius: 50%;
    bottom: -400px;
    right: -300px;
    z-index: -1;
    pointer-events: none;
}

/* NAVBAR */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2.5rem 5rem;
    position: relative;
    z-index: 100;
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.nav-logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--text-main);
}

.nav-links a.btn-pill {
    color: var(--bg-dark);
    background-color: var(--text-main);
    padding: 0.7rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
}

.nav-links a.btn-pill:hover {
    background-color: rgba(255, 255, 255, 0.85);
    transform: scale(1.03);
}

/* HERO */
.hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    min-height: 45vh;
    padding: 8rem 2rem;
    text-align: center;
}

.hero-container-wrapper {
    position: relative;
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    z-index: 1; /* Establishes a local stacking context to prevent negative z-index video from rendering behind body background */
}

.hero-background-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1; /* Changed to positive to prevent negative z-index rendering issues on various browsers */
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 10;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-main-logo {
    width: 100%;
    max-width: 600px;
    height: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.75rem);
    font-weight: 300;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: 0.2s;
}

/* CARDS GRID */
.grid-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 2.5rem;
    padding: 0 5rem 8rem;
    max-width: 1600px;
    margin: 0 auto;
}

.card {
    transition: var(--transition);
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: 0.2s;
    perspective: 1500px;
    min-height: 420px;
}

.spacer-card {
    min-height: 420px;
}
@media (max-width: 1024px) {
    .spacer-card {
        display: none;
    }
}

.card:nth-child(2) { animation-delay: 0.4s; }
.card:nth-child(3) { animation-delay: 0.6s; }

@media (hover: hover) and (pointer: fine) {
    .card:hover {
        transform: translateY(-12px);
    }
}
.card.is-flipped {
    transform: translateY(-12px);
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    transform-style: preserve-3d;
    display: grid;
    border-radius: 28px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

@media (hover: hover) and (pointer: fine) {
    .card:hover .card-inner {
        transform: rotateY(180deg);
        box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
    }
}
.card.is-flipped .card-inner {
    transform: rotateY(180deg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
}

.card-front, .card-back {
    grid-area: 1 / 1;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: 28px;
    overflow: hidden;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

@media (hover: hover) and (pointer: fine) {
    .card:hover .card-front {
        border-color: rgba(255, 255, 255, 0.15);
        background: rgba(255, 255, 255, 0.05);
    }
}
.card.is-flipped .card-front {
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
}

.card-white .card-front {
    background: #ffffff !important;
    color: var(--bg-dark);
    justify-content: center;
    align-items: center;
}

.card-white .card-front h2 {
    color: var(--bg-dark);
}

.card-back {
    transform: rotateY(180deg);
    padding: 2.5rem;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: #ffffff !important;
    color: var(--bg-dark);
}

.card-back p {
    color: #222222;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0;
    line-height: 1.6;
}

.card-image {
    height: 280px;
    background-size: cover;
    background-position: center;
    position: relative;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (hover: hover) and (pointer: fine) {
    .card:hover .card-image {
        transform: scale(1.05);
    }
}
.card.is-flipped .card-image {
    transform: scale(1.05);
}

/* Subtle overlay to blend image into card */
.card-image::after {
    content: '';
    position: absolute;
    bottom: -2px; /* Fix for sub-pixel rendering gaps */
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(to top, rgba(5, 5, 5, 1) 0%, rgba(5, 5, 5, 0.8) 20%, transparent 100%);
    pointer-events: none;
}

.card-content {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    position: relative;
    z-index: 2;
    margin-top: -30px; /* Bring content up into the gradient fade */
    justify-content: center;
    align-items: center;
}

/* Remove fade and margin offset for SOL ViBE animated card */
.sol-vibe-card .card-image::after {
    display: none;
}

.sol-vibe-card .card-content {
    margin-top: 0;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.card-icon {
    width: 24px;
    height: 24px;
    color: var(--text-main);
}

.card-header h2 {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.card-logo {
    height: 36px;
    width: auto;
    object-fit: contain;
    max-width: 100%;
}

.card p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 2.5rem;
    flex-grow: 1;
    line-height: 1.6;
}

.btn-outline {
    display: inline-block;
    width: 100%;
    padding: 1.2rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-main);
    border: 1px solid var(--border-glass);
    border-radius: 14px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.02);
}

.btn-outline:hover {
    background: var(--text-main);
    color: var(--bg-dark);
    border-color: var(--text-main);
}

.btn-outline-dark {
    display: inline-block;
    width: 100%;
    padding: 1.2rem;
    text-align: center;
    text-decoration: none;
    color: var(--bg-dark);
    border: 1px solid rgba(5, 5, 5, 0.2);
    border-radius: 14px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    transition: var(--transition);
    background: transparent;
    margin-top: 1.5rem;
}

.btn-outline-dark:hover {
    background: var(--bg-dark);
    color: var(--text-main);
    border-color: var(--bg-dark);
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 5rem 2rem 6rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-glass), transparent);
}

.footer-subtitle {
    font-size: 0.95rem;
    letter-spacing: 0.25em;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.fw-bold {
    font-weight: 800;
    color: var(--text-main);
}

.footer-mission {
    font-size: 1.5rem;
    max-width: 650px;
    margin: 0 auto 4rem;
    color: var(--text-main);
    font-weight: 300;
    letter-spacing: -0.01em;
    line-height: 1.4;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.08em;
}

/* ANIMATIONS */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .navbar {
        padding: 2rem 3rem;
    }
    
    .grid-section {
        padding: 0 3rem 6rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 2rem;
        padding: 2rem 1.5rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.5rem;
    }
    
    .hero {
        padding: 4rem 1.5rem;
        min-height: 40vh;
    }
    
    .grid-section {
        padding: 0 1.5rem 5rem;
    }
    
    .card-image {
        height: 240px;
    }
}

.hero-main-logo-anim {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* --- ALIGNMENT CONFIGURATION --- */
:root {
  --sol-top: 28%;        
  --sol-left: 50%;       
  --sol-width: 16%;      
  
  --world-top: 73%;      
  --world-left: 36%;     
  --world-width: 16%;    
  
  --dot-width: 40%;      
}

.logo-container {
  position: relative;
  display: inline-block;
  max-width: 600px;
  width: 100%;
  filter: invert(1);
}

/* SOL REViBE Logo Looping Animation */
.logo-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
}

.plasma-container {
  position: absolute;
  left: 50%;
  top: 30.1%;
  width: 13.5%;
  height: 24%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  overflow: hidden;
  pointer-events: none;
}

.plasma-glow {
  position: absolute;
  width: 200%;
  height: 200%;
  left: -50%;
  top: -50%;
  background: conic-gradient(from 0deg, transparent, rgba(168, 85, 247, 0.45), transparent, rgba(59, 130, 246, 0.45), transparent);
  animation: rotatePlasma 2s linear infinite;
  mix-blend-mode: color-dodge;
}

/* High-Fidelity SVG Electrical Charges (Sparks) */
.electric-sparks-svg {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  overflow: visible;
}

.spark-ring {
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 25 75;
  transform-origin: center;
}

.ring-cyan {
  stroke: rgba(0, 238, 255, 0.95);
  stroke-width: 1.5px;
  filter: drop-shadow(0 0 4px #00e5ff);
  animation: spinRing1 0.4s steps(6) infinite;
}

.ring-purple {
  stroke: rgba(217, 70, 239, 0.95);
  stroke-width: 1.2px;
  filter: drop-shadow(0 0 5px #d946ef);
  animation: spinRing2 0.3s steps(5) infinite;
}

.ring-blue {
  stroke: rgba(59, 130, 246, 0.9);
  stroke-width: 1px;
  filter: drop-shadow(0 0 4px #3b82f6);
  animation: spinRing3 0.5s steps(7) infinite;
}

/* Electric Signal Wavelengths (Inside the charge) */
.spark-signal {
  fill: none;
  stroke-linecap: round;
  stroke-width: 1.2px;
  transform-origin: center;
  mix-blend-mode: screen;
}

.signal-1 {
  stroke: rgba(0, 238, 255, 0.95);
  filter: drop-shadow(0 0 5px #00e5ff);
  animation: pulseSignal1 0.35s steps(4) infinite;
}

.signal-2 {
  stroke: rgba(217, 70, 239, 0.95);
  filter: drop-shadow(0 0 6px #d946ef);
  animation: pulseSignal2 0.45s steps(5) infinite;
}

/* Lightning Bolts */
.spark-bolt {
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 30 70;
  stroke-width: 1.2px;
  transform-origin: center;
  opacity: 0;
}

.bolt-1, .bolt-3, .bolt-5, .bolt-7 {
  stroke: rgba(0, 238, 255, 0.9);
  filter: drop-shadow(0 0 3px #00e5ff);
}

.bolt-2, .bolt-4, .bolt-6, .bolt-8 {
  stroke: rgba(217, 70, 239, 0.9);
  filter: drop-shadow(0 0 4px #d946ef);
}

/* Individual Staggered Electrical Crashing Animations */
.bolt-1 { animation: flashBolt1 0.28s steps(3) infinite; }
.bolt-2 { animation: flashBolt2 0.32s steps(3) infinite; }
.bolt-3 { animation: flashBolt3 0.24s steps(2) infinite; }
.bolt-4 { animation: flashBolt4 0.36s steps(3) infinite; }
.bolt-5 { animation: flashBolt1 0.3s steps(3) infinite; }
.bolt-6 { animation: flashBolt2 0.26s steps(2) infinite; }
.bolt-7 { animation: flashBolt3 0.34s steps(3) infinite; }
.bolt-8 { animation: flashBolt4 0.22s steps(2) infinite; }

/* Erratic Vibrating Core */
.plasma-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 26%;
  height: 26%;
  background: radial-gradient(circle, #ffffff 0%, #f472b6 40%, #d946ef 75%, #a21caf 100%);
  border-radius: 50%;
  box-shadow: 0 0 12px #d946ef, 0 0 24px #a21caf, 0 0 35px rgba(217, 70, 239, 0.5), inset 0 1px 2px rgba(255,255,255,0.9);
  animation: crackleCore 0.25s steps(4) infinite;
}

@keyframes rotatePlasma {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes crackleCore {
  0%, 100% {
    transform: translate(-50%, -50%) translate(-1px, 2px) scale(0.95);
    filter: brightness(1.25);
  }
  25% {
    transform: translate(-50%, -50%) translate(2px, -1px) scale(1.05);
    filter: brightness(0.9);
  }
  50% {
    transform: translate(-50%, -50%) translate(-2px, -2px) scale(0.9);
    filter: brightness(1.35);
  }
  75% {
    transform: translate(-50%, -50%) translate(1px, 1px) scale(1.1);
    filter: brightness(1.0);
  }
}

@keyframes spinRing1 {
  0% { transform: rotate(0deg) scale(1); opacity: 0.95; }
  50% { transform: rotate(180deg) scale(0.95); opacity: 0.75; }
  100% { transform: rotate(360deg) scale(1); opacity: 0.95; }
}

@keyframes spinRing2 {
  0% { transform: rotate(120deg) scale(0.95); opacity: 0.8; }
  50% { transform: rotate(-60deg) scale(1.05); opacity: 0.95; }
  100% { transform: rotate(-240deg) scale(0.95); opacity: 0.8; }
}

@keyframes spinRing3 {
  0% { transform: rotate(270deg) scale(1.02); opacity: 0.75; }
  50% { transform: rotate(90deg) scale(0.9); opacity: 0.9; }
  100% { transform: rotate(-90deg) scale(1.02); opacity: 0.75; }
}

@keyframes flashBolt1 {
  0%, 100% { opacity: 0; stroke-dashoffset: 50; }
  15% { opacity: 0.95; stroke-dashoffset: 10; }
  30% { opacity: 0; stroke-dashoffset: 80; }
  45% { opacity: 0.85; stroke-dashoffset: 0; }
  60% { opacity: 0; stroke-dashoffset: 40; }
  75% { opacity: 1; stroke-dashoffset: 20; }
}

@keyframes flashBolt2 {
  0%, 100% { opacity: 0; stroke-dashoffset: 80; }
  20% { opacity: 0.9; stroke-dashoffset: 20; }
  40% { opacity: 0; stroke-dashoffset: 60; }
  60% { opacity: 1; stroke-dashoffset: 0; }
  80% { opacity: 0; stroke-dashoffset: 40; }
}

@keyframes flashBolt3 {
  0%, 100% { opacity: 0; stroke-dashoffset: 40; }
  25% { opacity: 1; stroke-dashoffset: 0; }
  50% { opacity: 0; stroke-dashoffset: 70; }
  75% { opacity: 0.8; stroke-dashoffset: 15; }
}

@keyframes flashBolt4 {
  0%, 100% { opacity: 0; stroke-dashoffset: 60; }
  30% { opacity: 0.95; stroke-dashoffset: 10; }
  60% { opacity: 0; stroke-dashoffset: 80; }
  90% { opacity: 1; stroke-dashoffset: 0; }
}

@keyframes pulseSignal1 {
  0% {
    stroke-dasharray: 100;
    stroke-dashoffset: 200;
    opacity: 0.85;
  }
  50% {
    stroke-dashoffset: 100;
    opacity: 0.6;
  }
  100% {
    stroke-dashoffset: 0;
    opacity: 0.95;
  }
}

@keyframes pulseSignal2 {
  0% {
    stroke-dasharray: 60 40;
    stroke-dashoffset: 0;
    opacity: 0.7;
  }
  50% {
    stroke-dashoffset: -50;
    opacity: 0.95;
  }
  100% {
    stroke-dashoffset: -100;
    opacity: 0.7;
  }
}