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

body {
    font-family: 'Raleway', sans-serif;
    background: linear-gradient(135deg, #1e2f5e, #2856a6);
    color: #fff;
    line-height: 1.5;
    overflow-x: hidden;
}

/* ===== Hero Layout ===== */
.signup-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 60px 20px;
    position: relative;
    overflow: hidden;
}

/* ===== Collage Background ===== */
.collage {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    grid-auto-rows: 80px;
    gap: 3px;
    z-index: 0;
}

.collage .img-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px) saturate(150%);
    -webkit-backdrop-filter: blur(8px) saturate(150%);
}

.collage .img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.collage .img-wrapper img:hover {
    transform: scale(1.05);
}

/* ===== Signup Glass Box ===== */
.signup-box {
    position: relative;
    z-index: 2;
    max-width: 450px;
    width: 100%;
    padding: 40px 36px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

/* Title */
.signup-box h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 22px;
    line-height: 1.2;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Error Message */
.error-msg {
    background: rgba(255, 75, 75, 0.2);
    color: #ff6b6b;
    padding: 10px 14px;
    border-radius: 10px;
    font-weight: 600;
    margin-bottom: 16px;
    border: 1px solid rgba(255, 75, 75, 0.4);
}

/* ===== Form Styles ===== */
.signup-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 18px;
}

.signup-form input {
    width: 100%;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 1rem;
    transition: 0.25s;
}

.signup-form input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.signup-form input:focus {
    outline: none;
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.2);
}

/* ===== Button (Glass Outline Style) ===== */
.signup-form button {
    margin-top: 10px;
    padding: 12px 20px;
    font-size: 1.1rem;
    font-weight: bold;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
    transition: all 0.3s ease;
}

.signup-form button:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

/* ===== Links ===== */
.signup-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
}

.signup-links a {
    color: #fff;
    font-size: 0.95rem;
    text-decoration: none;
    opacity: 0.85;
    transition: opacity 0.3s ease;
}

.signup-links a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .collage {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        grid-auto-rows: 60px;
    }

    .signup-box {
        max-width: 90%;
        padding: 28px 24px;
    }

    .signup-box h1 {
        font-size: 1.6rem;
    }
}

/* ===== Animation ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(25px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}