:root {
    --primary: #0b0c22;
    --secondary: #1a1c3a;
    --accent: #6a5af9;
    --accent-light: #8a7dfb;
    --text: #f0f0ff;
    --text-secondary: #c0c0e0;
    --card-bg: rgba(30, 32, 60, 0.7);
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    --success: #03FCD7;
    --warning: #facc15;
    --error: #f87171;
    --phi-gradient: linear-gradient(90deg, #b06ab3, #9457a4, #6e48aa, #3a228f);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, var(--primary), #000);
    color: var(--text);
    min-height: 10vh;
    overflow-x: hidden;
    background-attachment: fixed;
    background-size: cover;
    position: relative;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(106, 90, 249, 0.1) 0%, transparent 40%),
                radial-gradient(circle at bottom left, rgba(86, 70, 229, 0.1) 0%, transparent 40%);
    z-index: -1;
}

.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.star {
    position: absolute;
    background-color: white;
    border-radius: 50%;
    animation: twinkle var(--duration, 4s) infinite var(--delay, 0s);
}

@keyframes twinkle {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 1; }
}

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

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 40px;
    position: relative;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text);
    position: absolute;
    right: 20px;
    top: 20px;
    z-index: 1001;
    transition: var(--transition);
}

.hamburger:hover {
    color: var(--accent-light);
}

.hamburger.active .fa-bars {
    display: none;
}

.hamburger.active::after {
    content: '\f00d';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 24px;
    color: var(--text);
}

/* Navigation */
nav {
    display: block;
}

nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    list-style: none;
    justify-content: center;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.0rem;
    transition: var(--transition);
    padding: 8px 15px;
    border-radius: 10px;
}

nav a:hover, nav a.active {
    color: var(--text);
    background: rgba(106, 90, 249, 0.2);
}

/* Mobile Menu Styles */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: var(--primary);
        z-index: 1000;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
        transform: translateX(-100%);
    }

    nav.active {
        display: flex;
        transform: translateX(0);
    }

    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }

    nav a {
        font-size: 1.5rem;
        padding: 15px 30px;
    }

    nav a:hover, nav a.active {
        background: rgba(106, 90, 249, 0.3);
        transform: translateY(-5px);
    }
}

/* POLICE CORRIGÉE POUR LE SYMBOLE φ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans:ital,wght@0,100..900;1,100..900&family=Roboto+Flex:opsz,wght@8..144,100..1000&family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

.logo {
    font-family: 'Roboto Flex', sans-serif;
    display: flex;
    align-items: center;
    gap: 0;
    text-decoration: none;
}

.math-container {
    position: relative;
    display: inline-block;
    padding: 0 5px;
}

.phi {
    font-family: 'Roboto Flex', sans-serif;
    font-size: 3.8rem;
    color: var(--accent);
    font-weight: 700;
    line-height: 1;
    display: block;
    text-align: center;
    position: relative;
    z-index: 2;
    animation: write-phi 4s ease-in-out forwards;
}

.redshift {
    position: absolute;
    bottom: 0.4rem; /* Monté légèrement de 0.1rem à 0.2rem */
    right: -1.3rem; /* Décalé à droite de -0.5rem à -0.7rem */
    font-size: 1.4rem; /* Taille conservée comme demandé précédemment */
    color: var(--accent-light);
    transform: translateY(40%);
    letter-spacing: -0.5px;
    z-index: 3;
    opacity: 0;
    animation: write-redshift 4s ease-in-out 0.5s forwards;
}

.domain {
    font-size: 2.0rem;
    background: linear-gradient(to left, var(--text), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 400;
    letter-spacing: -0.5px;
    margin-left: 18px; /* Décalé à droite de 2px à 4px */
    transform: translateY(50%); /* Descendu légèrement de 40% à 50% */
    display: inline-block; /* Conservé pour un positionnement précis */
    opacity: 0;
    animation: fade-in 1s ease-in-out 3s forwards;
}

/* ANIMATION D'ÉCRITURE */
@keyframes write-phi {
    0% {
        color: #03FCD7;
        text-shadow: 0 0 15px #03FCD7;
        opacity: 0;
        transform: scale(0.8);
    }
    20% {
        opacity: 1;
        transform: scale(1.1);
        color: #03FCD7;
        text-shadow: 0 0 20px #03FCD7;
    }
    40% {
        color: #03FCD7;
        text-shadow: 0 0 25px #03FCD7;
    }
    60% {
        color: #03FCD7;
        text-shadow: 0 0 15px #03FCD7;
    }
    80% {
        color: #8a7dfb;
    }
    100% {
        color: var(--accent);
        text-shadow: none;
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes write-redshift {
    0% {
        opacity: 0;
        transform: translateY(40%) scale(0.5);
        color: #03FCD7;
    }
    30% {
        opacity: 0;
    }
    40% {
        opacity: 1;
        color: #03FCD7;
        text-shadow: 0 0 10px #03FCD7;
        transform: translateY(40%) scale(1.2);
    }
    60% {
        color: #03FCD7;
        text-shadow: 0 0 8px #03FCD7;
    }
    80% {
        color: var(--accent-light);
        text-shadow: none;
    }
    100% {
        opacity: 1;
        transform: translateY(40%) scale(1);
        color: var(--accent-light);
    }
}

@keyframes fade-in {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

/* EFFET DE SURVOL */
.logo:hover .phi {
    color: #03FCD7;
    text-shadow: 0 0 15px rgba(3, 252, 215, 0.6);
    transition: all 0.4s ease;
}

.logo:hover .redshift {
    color: #03FCD7;
    transition: all 0.4s ease;
}

.page {
    display: none;
    animation: fadeIn 0.6s ease-out;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero {
    text-align: center;
    padding: 60px 0;
    margin-bottom: 50px;
    position: relative;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 20px;
    background: linear-gradient(to left, var(--text), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.hero p {
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto 30px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    background: var(--accent);
    color: white;
    border-radius: 15px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    margin: 10px;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
}

.btn:hover {
    background: var(--accent-light);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(106, 90, 249, 0.3);
}

.btn i {
    margin-right: 10px;
}

.btn-download {
    position: relative;
    overflow: hidden;
    padding: 18px 40px;
    background: linear-gradient(45deg, var(--accent), var(--accent-light));
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 0 20px rgba(106, 90, 249, 0.5);
    transition: var(--transition);
}

.btn-download:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 0 40px rgba(106, 90, 249, 0.8);
    background: linear-gradient(45deg, var(--accent-light), var(--accent));
}

.btn-download .btn-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-download:hover .btn-glow {
    left: 100%;
}

.model-section {
    margin-bottom: 80px;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.model-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    transition: var(--transition);
    border: 1px solid rgba(106, 90, 249, 0.2);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
}

.model-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(106, 90, 249, 0.2);
    border-color: var(--accent-light);
}

.model-card i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    background: rgba(106, 90, 249, 0.1);
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
}

.model-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text);
}

.model-card p, .model-card li {
    color: var(--text-secondary);
    line-height: 1.7;
    flex-grow: 1;
}

.model-card ul {
    list-style-position: inside;
    padding-left: 10px;
}

.equation-box {
    background: rgba(0,0,0,0.3);
    padding: 30px;
    border-radius: 15px;
    margin: 40px auto;
    font-size: 1.5rem;
    overflow-x: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-shadow: 0 0 15px rgba(134, 42, 255, 3.2),
                0 0 45px rgba(134, 42, 255, 1.9),
                0 0 105px rgba(134, 42, 255, .9);
    text-align: center;
}

.futuristic-table {
    overflow-x: auto;
    margin: 40px 0;
    padding: 20px;
    background: linear-gradient(135deg, rgba(106, 90, 249, 0.2), rgba(30, 32, 60, 0.7));
    border-radius: 20px;
    border: 2px solid var(--accent);
    box-shadow: 0 0 30px rgba(106, 90, 249, 0.4);
    backdrop-filter: blur(10px);
}

.futuristic-table table {
    width: 100%;
    border-collapse: collapse;
    color: var(--text);
    font-size: 1rem;
}

.futuristic-table th, .futuristic-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.futuristic-table th {
    background: linear-gradient(to right, var(--accent), var(--accent-light));
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.futuristic-table tr:hover {
    background: rgba(106, 90, 249, 0.3);
    transition: var(--transition);
}

.futuristic-table td:first-child {
    font-weight: 600;
    color: var(--accent-light);
}

.futuristic-table td:nth-child(2) {
    color: var(--success);
    font-weight: 700;
}

.futuristic-table td.description-cell {
    display: none;
}

.futuristic-table.show-descriptions td.description-cell {
    display: table-cell;
    animation: fadeInDescription 0.5s ease-in-out;
}


.futuristic-table.show-descriptions th.description-header,
.futuristic-table.show-descriptions td.description-cell {
    display: table-cell;
    animation: fadeInDescription 0.5s ease-in-out;
}

@keyframes fadeInDescription {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.toggle-button {
    background: var(--accent);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.toggle-button:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}


.glossary-list dt {
    font-size: 1.4rem;
    color: var(--accent-light);
    font-weight: 600;
    margin-top: 30px;
    padding-bottom: 5px;
    border-bottom: 1px solid var(--secondary);
}

.glossary-list dd {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-left: 20px;
    margin-top: 10px;
    padding-left: 20px;
    border-left: 3px solid var(--accent);
}

.chat-container {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    height: 500px;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(106, 90, 249, 0.2);
    backdrop-filter: blur(10px);
}

.chat-header {
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.chat-header i {
    color: var(--accent);
    font-size: 1.8rem;
}

.chat-messages {
    flex-grow: 1;
    overflow-y: auto;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 20px;
}

.message {
    max-width: 80%;
    padding: 15px 20px;
    border-radius: 18px;
    line-height: 1.5;
    position: relative;
    animation: messageAppear 0.3s ease-out;
}

@keyframes messageAppear {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.user-message {
    align-self: flex-end;
    background: var(--accent);
    border-bottom-right-radius: 5px;
}

.ai-message {
    align-self: flex-start;
    background: var(--secondary);
    border-bottom-left-radius: 5px;
}

.message-typing {
    display: inline-flex;
    gap: 5px;
    align-items: flex-end;
    height: 25px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--text);
    border-radius: 50%;
    display: inline-block;
    animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-5px); }
}

.chat-input {
    display: flex;
    gap: 15px;
}

.chat-input input {
    flex-grow: 1;
    padding: 15px 20px;
    border-radius: 15px;
    border: none;
    background: rgba(30, 32, 60, 0.8);
    color: var(--text);
    font-size: 1rem;
    border: 1px solid rgba(106, 90, 249, 0.3);
}

.chat-input input:focus {
    outline: none;
    border-color: var(--accent);
}

.chat-input button {
    padding: 15px 25px;
    border-radius: 15px;
    border: none;
    background: var(--accent);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.chat-input button:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

.chat-input button:disabled {
    background: #4a4a7a;
    cursor: not-allowed;
    transform: none;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--error);
}

.status-dot.connected {
    background: var(--success);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(3, 252, 215, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(3, 252, 215, 0); }
    100% { box-shadow: 0 0 0 0 rgba(3, 252, 215, 0); }
}

footer {
    text-align: center;
    padding: 40px 0;
    margin-top: 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.social-links a {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
    font-size: 1.2rem;
}

.social-links a:hover {
    background: var(--accent);
    transform: translateY(-5px);
}

.author-name {
    font-size: 1.2rem;
    margin-top: 20px;
    color: var(--text);
    display: block;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .model-grid { grid-template-columns: 1fr; }
    .social-links a { width: 45px; height: 45px; }
}

/* STYLES POUR LA FRISE COSMIQUE */
.cosmic-timeline-container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.visualization-container {
    position: relative;
    width: 100%;
    height: 500px;
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(106, 90, 249, 0.2);
    border: 1px solid rgba(106, 90, 249, 0.2);
    backdrop-filter: blur(10px);
    margin: 20px 0;
}

.cosmic-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.info-panel {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: var(--secondary);
    padding: 1.2rem;
    border-radius: 15px;
    border-left: 3px solid var(--accent);
    max-width: 300px;
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.phi-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--success);
    margin-bottom: 0.5rem;
}

.epoch-description {
    font-size: 1rem;
    color: var(--text-secondary);
}

.timeline-container {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(106, 90, 249, 0.2);
    backdrop-filter: blur(10px);
}

.timeline {
    position: relative;
    height: 6px;
    background: rgba(106, 90, 249, 0.1);
    border-radius: 10px;
    margin: 2rem 0 3rem;
}

.timeline-progress {
    position: absolute;
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 10px;
    width: 0;
    transition: width 0.3s ease;
}

.timeline-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 20px;
    background: transparent;
    position: absolute;
    top: -7px;
    cursor: pointer;
    z-index: 10;
}

.timeline-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--warning);
    cursor: pointer;
    box-shadow: 0 0 15px rgba(250, 204, 21, 0.7);
    border: 2px solid var(--primary);
}

.epoch-markers {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-top: 2rem;
}

.epoch {
    text-align: center;
    position: relative;
    flex: 1;
}

.epoch::before {
    content: '';
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px rgba(106, 90, 249, 0.7);
}

.epoch-title {
    font-size: 1rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.epoch-time {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.control-btn {
    background: rgba(106, 90, 249, 0.1);
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.control-btn:hover {
    background: rgba(106, 90, 249, 0.3);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .visualization-container {
        height: 400px;
    }
    
    .epoch-title {
        font-size: 0.8rem;
    }
}

.video-container {
  position: relative;
  width: 95%; /* 95% de la largeur de l'écran, pour laisser une marge */
  padding-bottom: 53.4375%; /* Ratio 16:9 (9 / 16 = 0.5625) - ajusté pour un affichage plus large */
  height: 0;
  overflow: hidden;
  margin: 0 auto; /* Permet de centrer le conteneur */
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.futuristic-button-container {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.futuristic-button {
  background: var(--card-bg);
  border: 1px solid rgba(106, 90, 249, 0.2);
  color: #fff;
  padding: 20px 30px;
  text-decoration: none;
  font-family: 'Poppins', sans-serif;
  border-radius: 10px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  min-width: 250px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.futuristic-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--phi-gradient);
  z-index: 0;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.futuristic-button:hover::before {
  opacity: 1;
}

.button-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.icon-text-wrapper {
  display: flex;
  color: var(--accent);
  align-items: center;
  gap: 10px;
  margin-bottom: 5px;
}

.futuristic-button i {
  font-size: 24px;
  transition: transform 0.3s ease;
  color: var(--accent);
}

.futuristic-button span {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #fff;
}

.futuristic-button .description {
  font-size: 12px;
  color: #aaa;
  margin: 0;
  transition: color 0.3s ease;
}

.futuristic-button:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  border-color: transparent;
}

.futuristic-button:hover i {
  transform: scale(1.1);
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.5));
}

.futuristic-button:hover .description {
  color: #eee;
}

/* Optional: Add a subtle glow on hover */
.futuristic-button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120%;
  height: 120%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.4s ease;
  z-index: 0;
}

.futuristic-button:hover::after {
  transform: translate(-50%, -50%) scale(1);
}