@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@300;400;500;600;700&family=Roboto:wght@300;400;500;700&family=Open+Sans:wght@300;400;500;700&family=Lato:wght@300;400;500;700&family=Montserrat:wght@300;400;500;700&family=Oswald:wght@300;400;500;700&family=Merriweather:wght@300;400;500;700&family=Playfair+Display:wght@400;700&display=swap');

:root {
    /* --- Color Palette --- */
    --primary-color: #6a5acd; /* Deep Purple */
    --primary-light: #8a7ad9;
    --primary-dark: #4a3a9d;
    --accent-color: #ff6b6b; /* Coral Red */
    --accent-light: #ff8e8e;
    --text-dark: #2c3e50; /* Dark Slate */
    --text-medium: #555;
    --text-light: #7f8c8d; /* Greyish Blue */
    --placeholder-text-color: var(--text-light);
    --bg-light: #f8f9fa; /* Off-white background */
    --bg-medium: #eef1f5; /* Light grey background */
    --bg-dark: #ffffff; /* Pure white for main elements */
    --border-light: #e0e0e0;
    --border-medium: #bdc3c7;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --shadow-light-color: rgba(0, 0, 0, 0.04);
    --success-color: #2ecc71;
    --danger-color: #e74c3c;

    /* --- Typography --- */
    --font-family-base: 'Inter', sans-serif; /* Modern, clean default */
    --font-family-heading: 'Poppins', sans-serif; /* Slightly more distinct for headings */

    /* --- Spacing & Sizing --- */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 30px;
    --spacing-xxl: 40px;

    /* --- Border Radius --- */
    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 16px;

    /* --- Shadows --- */
    --shadow-1: 0 2px 8px var(--shadow-light-color);
    --shadow-2: 0 5px 15px var(--shadow-color);
    --shadow-3: 0 10px 30px rgba(0, 0, 0, 0.12);

    /* --- Transitions --- */
    --transition-ease: all 0.3s ease-in-out;
    --transition-fast: all 0.15s ease-out;

    /* Default values for customization, will be overridden by JS settings */
    --font-family: var(--font-family-base);
    --body-bg-color: var(--bg-medium);
    --body-text-color: var(--text-dark);
    --container-bg-color: var(--bg-dark);
    --item-default-bg-color: var(--bg-dark);
    --item-default-text-color: var(--text-dark);
    --item-width: 120px;
    --item-height: 40px;
    --tier-min-height: 80px;
}

/* --- Base Styles --- */
body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    background-color: var(--body-bg-color);
    color: var(--body-text-color);
    line-height: 1.6;
    transition: var(--transition-ease);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
}

html,
body {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

*::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}

.container {
    max-width: 1280px; /* Slightly wider container */
    margin: var(--spacing-xl) auto;
    padding: var(--spacing-xxl);
    background-color: var(--container-bg-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-3); /* More prominent shadow */
    transition: var(--transition-ease);
}

h1, h2 {
    font-family: var(--font-family-heading);
    color: var(--text-dark);
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 2.8rem;
    letter-spacing: -0.03em;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.02em;
}

p {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    color: var(--text-medium);
    font-size: 1.1rem;
}

/* --- Buttons --- */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px; /* Larger padding */
    margin: var(--spacing-sm) var(--spacing-xs);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 600;
    transition: var(--transition-ease);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1); /* Deeper shadow */
    background-image: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%); /* Subtle gradient */
    color: white;
}

.button:hover {
    transform: translateY(-3px); /* More pronounced lift */
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    background-image: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

.primary-button {
    background-image: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
}

.primary-button:hover {
    background-image: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

.button:not(.primary-button) {
    background-color: var(--bg-light);
    color: var(--text-dark);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-1);
    background-image: none; /* Remove gradient for secondary */
}

.button:not(.primary-button):hover {
    background-color: #e0e5eb;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

.upload-button {
    background-image: linear-gradient(135deg, var(--success-color) 0%, #27ae60 100%);
    color: white;
}

.upload-button:hover {
    background-image: linear-gradient(135deg, #27ae60 0%, #229954 100%);
}

/* --- Input Fields & Selects --- */
.input-field, select.input-field {
    padding: 12px 18px;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-md);
    font-size: 1rem;
    width: calc(100% - 36px); /* Adjust for padding */
    margin-bottom: var(--spacing-md);
    box-sizing: border-box;
    transition: var(--transition-fast);
    background-color: var(--bg-dark);
    color: var(--text-dark);
}

.input-field:focus, select.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(106, 90, 205, 0.2); /* Soft focus glow */
}

.color-picker {
    width: 60px;
    height: 40px;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-md);
    vertical-align: middle;
    margin-left: var(--spacing-md);
    cursor: pointer;
    background-color: var(--bg-dark);
    padding: 0;
    overflow: hidden;
    transition: var(--transition-fast);
}
.color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
}
.color-picker::-webkit-color-swatch {
    border: none;
}
.color-picker:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(106, 90, 205, 0.2);
}

/* --- Home Page Specifics (index.html) --- */
.saved-tier-lists-section {
    margin-top: var(--spacing-xxl);
    border-top: 1px solid var(--border-light);
    padding-top: var(--spacing-xl);
}

.tier-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); /* Larger cards */
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.tier-list-card {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-2); /* Deeper shadow for cards */
    transition: var(--transition-ease);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.tier-list-card::before { /* Decorative overlay */
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background-image: linear-gradient(to right, var(--primary-color), var(--accent-color));
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.tier-list-card:hover {
    transform: translateY(-8px); /* More pronounced lift */
    box-shadow: var(--shadow-3);
}

.tier-list-card h3 {
    margin-top: var(--spacing-md); /* Space for the decorative line */
    color: var(--text-dark);
    font-size: 1.4rem;
    text-align: left;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-family-heading);
    font-weight: 600;
}

.tier-list-card .card-actions {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-lg);
    gap: var(--spacing-sm);
}

.tier-list-card .card-actions .button {
    flex-grow: 1;
    margin: 0;
    padding: 10px 15px;
    font-size: 0.95rem;
    box-shadow: none; /* Remove extra shadow for nested buttons */
}

.tier-list-card .card-actions .button:not(.primary-button) {
    background-color: var(--bg-light);
    color: var(--text-medium);
    border: 1px solid var(--border-light);
}

.tier-list-card .card-actions .button:not(.primary-button):hover {
    background-color: #e0e5eb;
}

#noSavedListsMessage {
    grid-column: 1 / -1;
    color: var(--placeholder-text-color);
    font-style: italic;
    padding: var(--spacing-xl) 0;
    font-size: 1.1rem;
}

/* --- Create/Edit Page Specifics (create.html) --- */
.header {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: var(--spacing-xxl);
}

.header h1 {
    margin: 0;
    flex-grow: 1;
    font-size: 2.5rem; /* Consistent with main heading */
    color: var(--text-dark);
    text-align: center;
}

.back-button {
    position: absolute;
    left: 0;
    padding: 10px 18px;
    background-color: var(--bg-light);
    color: var(--text-medium);
    border-radius: var(--border-radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-1);
}

.back-button:hover {
    background-color: #e0e5eb;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.tier-list-editor {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl); /* Increased gap between sections */
}

.editor-section {
    background-color: var(--container-bg-color);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-2);
    transition: var(--transition-ease);
}

.editor-section:hover {
    box-shadow: var(--shadow-3);
}

.editor-section h2 {
    text-align: left;
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
    font-size: 1.8rem;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: var(--spacing-md);
    font-family: var(--font-family-heading);
    font-weight: 600;
}

.item-input-area, .tier-input-area {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    align-items: center;
}

.item-input-area .input-field, .tier-input-area .input-field {
    flex-grow: 1;
    margin-bottom: 0;
    min-width: 180px;
}

.item-input-area .button, .tier-input-area .button {
    margin: 0;
}

.item-pool, .tier-items-zone {
    min-height: var(--tier-min-height);
    border: 2px dashed var(--border-medium);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-content: flex-start;
    transition: var(--transition-ease);
}

.drop-zone.drag-over {
    border-color: var(--primary-color);
    background-color: #eaf5fb; /* Lighter primary tint */
    box-shadow: 0 0 0 3px rgba(106, 90, 205, 0.1);
}

.tier-item {
    background-color: var(--item-default-bg-color);
    color: var(--item-default-text-color);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-xs);
    cursor: grab;
    box-shadow: var(--shadow-1);
    transition: var(--transition-ease);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    width: var(--item-width);
    height: var(--item-height);
    box-sizing: border-box;
    overflow: hidden;
    text-align: center;
    font-size: 0.85rem;
    position: relative;
    font-weight: 500;
}

.tier-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-2);
}

.tier-item.dragging {
    opacity: 0.7;
    border-style: solid;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-color);
}

.tier-item img {
    max-width: 100%;
    max-height: 70%;
    object-fit: contain;
    border-radius: 3px;
}

.tier-item span {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
    padding: 0 2px;
}

.tier-item-remove {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--danger-color);
    border-radius: 50%;
    color: var(--danger-color);
    font-size: 0.8rem;
    cursor: pointer;
    padding: 2px 5px;
    line-height: 1;
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    opacity: 0;
    transition: var(--transition-fast);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.tier-item:hover .tier-item-remove {
    opacity: 1;
}

.tier-item-remove:hover {
    background-color: var(--danger-color);
    color: white;
    transform: scale(1.1);
}

.tier-row {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-2);
    transition: var(--transition-ease);
}

.tier-row:hover {
    box-shadow: var(--shadow-3);
}

.tier-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 600;
    color: white;
    background-color: var(--tier-header-default-bg); /* Fallback, will be overridden by JS */
    background-image: linear-gradient(90deg, var(--primary-dark), var(--primary-color)); /* Default gradient */
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 1.2rem;
    font-family: var(--font-family-heading);
}

.tier-header .tier-name {
    flex-grow: 1;
    font-size: 1.2rem;
}

.tier-header .tier-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.tier-header .tier-actions button {
    background: none;
    border: none;
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: var(--transition-fast);
    opacity: 0.8;
}

.tier-header .tier-actions button:hover {
    color: var(--accent-light);
    transform: scale(1.1);
    opacity: 1;
}

.editor-actions {
    text-align: center;
    margin-top: var(--spacing-xxl);
    border-top: 1px solid var(--border-light);
    padding-top: var(--spacing-xl);
}

.share-link-container {
    margin-top: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.share-link-input {
    flex-grow: 1;
    max-width: 500px;
    cursor: text;
    background-color: var(--bg-light);
    border: 1px solid var(--border-light);
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.05);
}

.copy-message {
    margin-left: var(--spacing-md);
    color: var(--success-color);
    font-weight: bold;
    opacity: 0;
    transition: var(--transition-ease);
    white-space: nowrap;
    font-size: 0.95rem;
}

.copy-message.show {
    opacity: 1;
}

.placeholder-text {
    color: var(--text-light);
    font-style: italic;
    text-align: center;
    width: 100%;
    margin: 0;
    padding: var(--spacing-lg) 0;
    font-size: 1rem;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.settings-grid > div {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    background-color: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-1);
    transition: var(--transition-fast);
}

.settings-grid > div:hover {
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.settings-grid label {
    font-weight: 600;
    color: var(--text-medium);
    font-size: 0.95rem;
}

.settings-grid .input-field, .settings-grid .color-picker {
    margin-bottom: 0;
    width: 100%;
}

/* --- Responsive adjustments --- */
@media (max-width: 992px) {
    .container {
        margin: var(--spacing-lg) auto;
        padding: var(--spacing-xl);
    }

    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.6rem;
    }

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

    .tier-header {
        font-size: 1.1rem;
    }

    .tier-header .tier-name {
        font-size: 1.1rem;
    }
}

@media (max-width: 768px) {
    .container {
        margin: var(--spacing-md);
        padding: var(--spacing-lg);
        border-radius: var(--border-radius-md);
    }

    h1 {
        font-size: 2rem;
        margin-bottom: var(--spacing-xl);
    }

    h2 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-md);
    }

    p {
        font-size: 1rem;
        margin-bottom: var(--spacing-xl);
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-xl);
    }

    .header h1 {
        text-align: left;
        font-size: 1.8rem;
    }

    .back-button {
        position: static;
        margin-bottom: var(--spacing-sm);
        width: auto;
    }

    .button {
        padding: 12px 20px;
        font-size: 0.95rem;
        width: 100%; /* Full width buttons on small screens */
        margin: var(--spacing-xs) 0;
    }

    .item-input-area, .tier-input-area {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }

    .item-input-area .input-field, .tier-input-area .input-field {
        width: 100%;
        min-width: unset;
        margin-bottom: 0;
    }

    .item-input-area .button, .tier-input-area .button {
        width: 100%;
        margin: 0;
    }

    .settings-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .share-link-container {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }

    .share-link-input {
        width: 100%;
        max-width: unset;
    }

    .copy-message {
        margin-left: 0;
        margin-top: var(--spacing-sm);
        text-align: center;
    }

    .tier-list-card .card-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-md);
    }

    h1 {
        font-size: 1.6rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    .tier-item {
        width: 100%; /* Items take full width in unranked/tier zones */
        height: auto;
        min-height: 50px;
        flex-direction: row;
        justify-content: flex-start;
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }

    .tier-item img {
        max-width: 40px;
        max-height: 40px;
    }

    .tier-item span {
        text-align: left;
        flex-grow: 1;
    }

    .tier-item-remove {
        position: static;
        opacity: 1; /* Always visible on small screens */
        margin-left: auto; /* Push to the right */
        transform: none;
        background: none;
        border: none;
        box-shadow: none;
        font-size: 1.2rem;
        padding: 0;
    }
    .tier-item:hover .tier-item-remove {
        opacity: 1;
    }
}