:root {
    --bg-space: #0B0C10;
    --text-ivory: #E0E0E0;
    --cyan-neon: #66FCF1;
    --cyan-dark: #45A29E;
    --danger-red: #C51162;
    --font-ui: 'Montserrat', sans-serif;
    --font-poem: 'Playfair Display', serif;
}

#app {
    position: relative;
    width: 100%;
    height: 100%;
}

.btn-icon {
    position: fixed;
    top: 30px;
    left: 30px;
    z-index: 2000;
    background: rgba(11, 12, 16, 0.4);
    border: 1px solid var(--cyan-neon);
    color: var(--cyan-neon);
    padding: 12px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
    box-shadow: 0 0 10px rgba(102, 252, 241, 0.2);
}

.btn-icon svg {
    width: 24px;
    height: 24px;
}

.btn-icon:hover {
    background: var(--cyan-neon);
    color: var(--bg-space);
    box-shadow: 0 0 20px var(--cyan-neon);
    transform: scale(1.1);
}

.btn-audio {
    top: auto;
    left: auto;
    bottom: 30px;
    right: 30px;
}

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

body, html {
    width: 100%;
    height: 100%;
    background-color: var(--bg-space);
    color: var(--text-ivory);
    overflow: hidden;
    font-family: var(--font-ui);
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: opacity 0.5s ease;
    opacity: 1;
}

.flex-center {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.hidden {
    display: none !important;
    opacity: 0;
}

/* Landing Page */
.glitch-text {
    font-size: 5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 5px;
    margin-bottom: 1rem;
    color: var(--text-ivory);
}

.cyan {
    color: var(--cyan-neon);
    text-shadow: 0 0 15px var(--cyan-neon);
}

.subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto 3rem auto;
    line-height: 1.4;
    opacity: 0.8;
}

/* Buttons */
.btn {
    padding: 1rem 2.5rem;
    font-family: var(--font-ui);
    font-weight: 600;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: 2px solid var(--cyan-neon);
    background: transparent;
    color: var(--cyan-neon);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-radius: 4px;
}

.btn:hover {
    background: var(--cyan-neon);
    color: var(--bg-space);
    box-shadow: 0 0 20px var(--cyan-neon);
    transform: translateY(-5px);
}

.btn-main {
    font-size: 1.3rem;
    padding: 1.2rem 3rem;
}

.btn-danger {
    border-color: var(--danger-red);
    color: var(--danger-red);
}

.btn-danger:hover {
    background: var(--danger-red);
    color: white;
    box-shadow: 0 0 20px var(--danger-red);
}

.btn-secondary {
    border-color: var(--cyan-dark);
    color: var(--cyan-dark);
    font-size: 0.9rem;
    padding: 0.7rem 1.5rem;
}

.btn-secondary:hover {
    background: var(--cyan-dark);
    color: var(--text-ivory);
    box-shadow: 0 0 15px var(--cyan-dark);
}

/* Order Page */
.poem-container {
    max-width: 800px;
    padding: 2rem;
    animation: fadeInPoem 1.5s ease-out;
}

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

.poem-title {
    font-family: var(--font-poem);
    font-size: 3rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.poem-author {
    font-family: var(--font-ui);
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--cyan-neon);
    margin-bottom: 3rem;
    opacity: 0.8;
}

.poem-text {
    font-family: var(--font-poem);
    font-size: 1.8rem;
    line-height: 1.6;
    font-style: italic;
    white-space: pre-line;
}

.controls-bottom {
    margin-top: 4rem;
    display: flex;
    gap: 2rem;
}

/* Zero-G Page */
#physics-canvas {
    width: 100%;
    height: 100%;
}

.controls-overlay {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}