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

:root {
    /* Brand Colors */
    --primary-color: #8C73E8;
    --secondary-color: #6425BC;
    --accent-color: #FFFFFF;
    --shadow-color: rgba(19, 0, 32, 0.5); /* #130020 with alpha */
    --glow-color: rgba(140, 115, 232, 0.6); /* Primary color with alpha */
    --background-gradient: linear-gradient(135deg, var(--secondary-color), var(--primary-color));

    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Layout */
    --padding: 1rem;
    --spacing: 1.5rem;
    --corner-radius: 12px; /* Corresponds roughly to '2xl' */
}

html, body {
    height: 100%;
    overflow-x: hidden; /* Prevent horizontal scroll */
}

body {
    font-family: var(--font-secondary);
    background: var(--background-gradient);
    color: var(--accent-color);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    position: relative; /* Needed for particle overlay */
}

/* Particle Background */
#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0; /* Behind content */
    /* Gaussian blur effect - apply via filter if needed, but can be performance heavy */
    /* filter: blur(2px); */
}

/* Main Container */
.container {
    position: relative;
    z-index: 1; /* Above particles */
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Pushes footer down */
    align-items: center;
    min-height: 100vh;
    width: 100%;
    padding: var(--padding);
    text-align: center;
    max-width: 1200px; /* Limit content width on large screens */
    margin: 0 auto;
}

/* Header */
header {
    padding: var(--spacing) 0;
}

.logo {
    max-width: 180px;
    /* height: 180px; Removed fixed height */
    object-fit: cover;
    border-radius: var(--corner-radius); /* Use defined corner radius */
    margin-bottom: var(--spacing);
    filter: drop-shadow(2px 4px 6px var(--shadow-color));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(3px 6px 8px var(--glow-color));
}

/* Main Content */
.content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--padding);
}

.headline {
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 8vw, 5rem); /* Responsive font size */
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem;
    text-shadow:
        0 0 15px var(--glow-color), /* Purple Glow */
        2px 2px 5px var(--shadow-color); /* Soft Drop Shadow */
}

.subheading {
    font-family: var(--font-secondary);
    font-size: clamp(1rem, 3vw, 1.5rem);
    font-weight: var(--font-weight-light);
    margin-bottom: var(--spacing);
    max-width: 600px; /* Prevent text from being too wide */
    text-shadow:
        0 0 10px var(--glow-color),
        1px 1px 3px var(--shadow-color);
}

/* Countdown Timer */
.countdown {
    display: flex;
    justify-content: center;
    gap: var(--spacing);
    margin: var(--spacing) 0;
    flex-wrap: wrap; /* Allow wrapping on small screens */
}

.time-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.05); /* Subtle background */
    padding: var(--padding) calc(var(--padding) * 1.5);
    border-radius: var(--corner-radius);
    min-width: 80px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px); /* Glassmorphism effect */
}

.time-block span:first-child {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: var(--font-weight-semibold);
    line-height: 1.1;
}

.time-block .label {
    font-family: var(--font-secondary);
    font-size: 0.8rem;
    font-weight: var(--font-weight-regular);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.25rem;
    opacity: 0.8;
}

/* Progress Indicator (Alternative) */
.progress-indicator {
    width: 80%;
    max-width: 400px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--corner-radius);
    overflow: hidden;
    margin: var(--spacing) 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.progress-bar {
    height: 10px;
    background-color: var(--accent-color);
    width: 0; /* Set dynamically */
    border-radius: var(--corner-radius);
    transition: width 0.5s ease-in-out;
}

.progress-indicator span {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.9rem;
}


/* Footer */
footer {
    width: 100%;
    padding: var(--spacing) var(--padding);
    margin-top: auto; /* Pushes footer to bottom */
}

.signup-section {
    margin-bottom: var(--spacing);
}

.signup-section p {
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
}

.signup-form {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    max-width: 400px;
    margin: 0 auto;
    flex-wrap: wrap; /* Allow wrapping */
}

.signup-form input[type="email"] {
    flex-grow: 1;
    padding: 0.75rem 1rem;
    border-radius: var(--corner-radius);
    border: 1px solid var(--accent-color);
    background: transparent;
    color: var(--accent-color);
    font-family: var(--font-secondary);
    outline: none;
    transition: box-shadow 0.3s ease;
    min-width: 200px; /* Ensure input has minimum width */
}

.signup-form input[type="email"]::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.signup-form input[type="email"]:focus {
    box-shadow: 0 0 8px 1px var(--glow-color);
}

.signup-form button {
    padding: 0.75rem 1.5rem;
    border-radius: var(--corner-radius);
    border: 1px solid var(--accent-color);
    background: transparent;
    color: var(--accent-color);
    font-family: var(--font-primary);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

.signup-form button:hover {
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 10px 2px var(--glow-color); /* Hover Glow */
}

.social-links {
    margin-bottom: 1rem; /* Space before copyright */
}

.social-links a {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin: 0 0.75rem;
    text-decoration: none;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--glow-color); /* Hover Glow */
}

.copyright {
    font-size: 0.8rem;
    opacity: 0.7;
    margin-top: var(--spacing); /* Add space above copyright if needed */
}


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

.fade-in {
    opacity: 0; /* Start hidden */
    animation: fadeIn 1s ease-out forwards;
}

/* Staggered Fade-in Delays */
.logo.fade-in { animation-delay: 0.2s; }
.headline.fade-in { animation-delay: 0.4s; }
.subheading.fade-in { animation-delay: 0.6s; }
.countdown.fade-in, .progress-indicator.fade-in { animation-delay: 0.8s; }
.signup-section.fade-in { animation-delay: 1.0s; }
.social-links.fade-in { animation-delay: 1.2s; }


/* Responsive Adjustments */
@media (max-width: 768px) {
    .countdown {
        gap: calc(var(--spacing) * 0.75);
    }
    .time-block {
        padding: calc(var(--padding) * 0.8) calc(var(--padding) * 1.2);
        min-width: 70px;
    }
    .signup-form {
        flex-direction: column;
        gap: 0.8rem;
        align-items: stretch; /* Make input/button full width */
    }
}

@media (max-width: 480px) {
    .headline {
        font-size: 2.5rem; /* Further reduce size */
    }
    .subheading {
        font-size: 1rem;
    }
    .time-block {
        padding: var(--padding) * 0.6;
        min-width: 60px;
    }
    .time-block span:first-child {
        font-size: 1.8rem;
    }
     .social-links a {
        font-size: 1.3rem;
        margin: 0 0.5rem;
    }
}