:root {
    --accent-white: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.7);
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
}

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

body {
    background-color: #3b7dc4;
    color: var(--accent-white);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
    perspective: 1200px;
}

/* --- NOSTALGIC LANDSCAPE BACKDROP --- */
.bliss-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    /* Direct, verified high-resolution link to Microsoft's modernized 4K render of Windows XP Bliss */
    background-image: url('https://msdesign.blob.core.windows.net/wallpapers/Microsoft_Nostalgic_Windows_Wallpaper_4k.jpg');
    background-size: cover;
    background-position: center bottom;
    z-index: 1;
    transform: scale(1.02);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.ambient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(
        circle,
        transparent 40%,
        rgba(0, 0, 0, 0.02) 80%,
        rgba(0, 0, 0, 0.08) 100%
    );
    z-index: 2;
    pointer-events: none;
}

/* --- SPA CONTAINER --- */
#app {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 440px;
    padding: 20px;
}

/* --- LITERAL CRYSTAL-CLEAR GLASS CARD (Apple Folder Standard) --- */
.glass-card {
    /* Set base opacity near 0 to remove frosting effect, letting background colors pass through naturally */
    background: rgba(255, 255, 255, 0.02);
    
    /* Hardware-accelerated Apple iOS/macOS style blur */
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    
    /* Crisp, high-contrast bounding white bezel representing clear solid glass */
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: 36px;
    padding: 50px 35px;
    
    /* Elegant, low-opacity drop shadows that let background depth breathe */
    box-shadow: 
        0 4px 10px rgba(0, 0, 0, 0.02),
        0 20px 50px rgba(0, 0, 0, 0.1),
        inset 0 1.5px 0 rgba(255, 255, 255, 0.4),
        inset 0 -1.5px 0 rgba(255, 255, 255, 0.05);
        
    position: relative;
    overflow: hidden;
    
    /* 3D tracking dynamics */
    transform-style: preserve-3d;
    will-change: transform;
    transition: transform 0.25s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Specular Light Source Glare (Specular reflection tracking the cursor) */
.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(
        700px circle at var(--glare-x, 50%) var(--glare-y, 50%), 
        rgba(255, 255, 255, 0.35), 
        rgba(255, 255, 255, 0.02) 15%,
        transparent 50%
    );
    z-index: 1;
    pointer-events: none;
}

/* --- BRAND HEADER & TYPOGRAPHY --- */
.brand-header {
    text-align: center;
    margin-bottom: 25px;
    position: relative;
    z-index: 3;
    transform: translateZ(45px);
}

/* Minimalist Lowercase Bold Branding Text */
.brand-logo-text {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -1.5px;
    color: var(--accent-white);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
    user-select: none;
    margin-bottom: 5px;
}

.brand-location {
    font-family: var(--font-sans);
    font-size: 0.72rem;
    color: var(--accent-white);
    letter-spacing: 3px;
    text-transform: lowercase;
    font-weight: 400;
    opacity: 0.85;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Minimalist Countdown Frame */
.countdown-container {
    padding: 10px 0;
    margin: 25px 0;
    text-align: center;
    position: relative;
    z-index: 3;
    transform: translateZ(30px);
}

.countdown-label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--accent-white);
    opacity: 0.8;
    letter-spacing: 3px;
    text-transform: lowercase;
    margin-bottom: 10px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.countdown-timer {
    font-family: var(--font-display);
    font-size: 1.25rem;
    letter-spacing: 1px;
    font-weight: 500;
    color: var(--accent-white);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* --- PREMIUM APPAREL-STYLE INPUTS --- */
.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 15px;
    position: relative;
    z-index: 3;
    transform: translateZ(35px);
}

.input-field {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 16px;
    padding: 18px;
    color: var(--accent-white);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    outline: none;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 
        inset 0 1px 2px rgba(255, 255, 255, 0.1),
        inset 0 -1px 2px rgba(0, 0, 0, 0.02);
}

.input-field:focus {
    border-color: var(--accent-white);
    box-shadow: 
        0 0 0 1px var(--accent-white),
        0 10px 25px rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.18);
}

.input-field::placeholder {
    color: rgba(255, 255, 255, 0.7);
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
}

.submit-btn {
    background: var(--accent-white);
    color: #1a4170; /* Deep blue contrast */
    border: none;
    border-radius: 16px;
    padding: 18px;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: lowercase;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.1);
}

.submit-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    color: var(--accent-white);
    box-shadow: 
        0 0 0 1.5px var(--accent-white),
        0 10px 30px rgba(255, 255, 255, 0.25);
}

.submit-btn:active {
    transform: scale(0.97);
}

.submit-btn:disabled {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: none;
    pointer-events: none;
}

/* --- SUCCESS STATE LAYOUT --- */
.success-layout {
    text-align: center;
    padding: 15px 0;
    position: relative;
    z-index: 3;
    transform: translateZ(40px);
}

.success-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
    font-weight: 700;
    text-transform: lowercase;
}

.success-manifesto {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--accent-white);
    opacity: 0.95;
    line-height: 2;
    text-align: center;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 18px;
    padding: 26px;
    margin-top: 15px;
    box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.1);
}