:root {
    --bg: #161012;
    --bg-accent: #21171a;
    --card: #1f1618;
    --text: #f7ecee;
    --muted: #c2a5aa;
    --primary: #9f2a38;
    --primary-hover: #b23343;
    --secondary: #2a1d20;
    --secondary-hover: #372528;
    --border: #3a272b;
    --input-bg: #2a1d20;
    --input-text: #f7ecee;
    --input-placeholder: #a98b90;
    --button-text: #ffffff;
    --success: #3aa76d;
    --danger: #e05252;
    --empty-bg: #2a1d20;
    --empty-border: #4a3237;
    --shadow: rgba(159, 42, 56, 0.2);
    --radius: 16px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background: var(--bg);
}

.page {
    min-height: 100vh;
    padding: 40px 20px 64px;
}

.hero {
    max-width: 1100px;
    margin: 0 auto 32px;
}

.hero h1 {
    margin: 0 0 10px;
    font-size: 2.4rem;
    font-weight: 700;
}

.subtitle {
    margin: 0;
    max-width: 720px;
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    gap: 28px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 18px 50px var(--shadow);
    padding: 28px;
}

.current-image-card h2,
.assignments-card h2 {
    margin: 0 0 18px;
    font-size: 1.45rem;
}

.image-wrapper {
    width: 100%;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-accent);
    margin-bottom: 24px;
}

.image-wrapper img {
    display: block;
    width: 100%;
    max-height: 440px;
    object-fit: cover;
}

form label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text);
}

.form-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

input[type="email"] {
    flex: 1;
    min-width: 240px;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--input-bg);
    color: var(--input-text);
    outline: none;
    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.2s ease;
}

input[type="email"]::placeholder {
  color: var(--input-placeholder);
}

input[type="email"]:focus {
    border-color: var(--primary);
    box-shadow: 0 4px 12px var(--shadow);
}

button {
    border: none;
    border-radius: var(--radius);
    padding: 15px 20px;
    font-size: 1rem;
    cursor: pointer;
    transition: 0.2s ease;
}

button[type="submit"] {
    background: var(--primary);
    color: var(--button-text);
    font-weight: 600;
}

button[type="submit"]:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px var(--shadow);
}

.secondary-btn {
    background: var(--secondary);
    color: var(--primary);
    font-weight: 600;
    border: 1px solid var(--border);
}

.secondary-btn:hover {
    background: var(--secondary-hover);
}

.message {
    min-height: 24px;
    margin-top: 14px;
    font-size: 0.95rem;
}

.message.error {
    color: var(--danger);
}

.message.success {
    color: var(--success);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.assignments-container {
    margin-top: 22px;
    display: grid;
    gap: 18px;
}

.email-group {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    background: var(--card);
}

.email-title {
    margin: 0 0 16px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    word-break: break-word;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.image-grid img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-accent);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.assigned-image-wrapper {
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.assigned-image-wrapper:hover {
    transform: translateY(-2px);
}

.assigned-image-wrapper:hover img {
    box-shadow: 0 4px 12px var(--shadow);
}

.assigned-image-wrapper img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-accent);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.delete-image-btn {
    position: absolute;
    top: 6px;
    right: 6px;

    width: 26px;
    height: 26px;

    border-radius: 50%;
    border: none;

    background: rgba(0, 0, 0, 0.6);
    color: white;

    font-size: 16px;
    font-weight: bold;
    line-height: 1;

    display: flex;
    align-items: center;
    justify-content: center;

    cursor: pointer;
    padding: 0;
}

/* Hover effect */
.delete-image-btn:hover {
    background: var(--primary-hover);
}

.empty-state {
    color: var(--muted);
    padding: 28px;
    border: 1px dashed var(--empty-border);
    border-radius: var(--radius);
    text-align: center;
    background: var(--empty-bg);
}

@media (max-width: 640px) {
    .page {
        padding: 28px 16px 48px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .card {
        padding: 20px;
    }

    .form-row {
        flex-direction: column;
    }

    button[type="submit"] {
        width: 100%;
    }
}