:root {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --card-bg: #242424;
    --border-color: #333333;
    --error: #e53e3e;
    --success: #10b981;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    background-image: url("../imgg/cont2/cont2image.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    height: auto;
    overflow-x: hidden;
}

/* Page structure */
.page-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    height: auto;
}

/* Navigation */
.navbar {
    width: 100%;
    height: 100px;
    flex-shrink: 0;
    background: #000;
    box-shadow: 0px -5px 21px 0px #7D8290;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    z-index: 100;
    /* padding: 0 20px; */
}

.title {
    color: #FFF;
    font-family: "Tilt Warp";
    font-size: 64px;
    font-weight: 400;
    font-size: normal;
    line-height: normal;
    align-self: center;
    margin-left: 20px;
    cursor: pointer;
}

.contents {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-right:20px;
    justify-content: flex-end;
    flex: 1;
    min-width: 0;
}

.lists {
    display: flex;
    align-items: center;
    align-content: center;
    gap: 22px;
    list-style-type: none;
    margin-right: 8px;
}

.listnav {
    color: #FFF;
    font-family: "Tilt Warp";
    font-size: 24px;
    font-weight: 400;
    cursor: pointer;
    font-style: normal;
    line-height: normal;
    transition: color 0.2s ease;
}

.listnav:hover {
    color: #fcb111;
}

/* Dropdown menu for mobile */
.menu-icon {
    display: none;
    font-size: 24px;
    color: white;
    cursor: pointer;
}

.dropdown {
    display: none;
    position: absolute;
    top: 100px;
    right: 0;
    background: #000;
    width: 100%;
    flex-direction: column;
    padding: 1rem;
    z-index: 99;
}

.dropdown .listnav {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.dropdown .listnav:last-child {
    border-bottom: none;
}

/* Main Content Layout */
.main-content {
    margin-top: 100px; /* Match navbar height */
    min-height: calc(100vh - 100px);
    height: auto;
}

/* Sidebar with heading */
.headroad {
    width: 8vw;
    height: 90vh;
    background-color: #000;
    position: fixed;
    top: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 20px;
    flex-shrink: 0;
}

.headroadtext {
    text-align: center;
    font-family: Montserrat;
    font-size: 98px;
    font-style: normal;
    font-weight: 800;
    line-height: normal;
    background: linear-gradient(101deg, #F33742 20.15%, #FCB111 39.15%, #4382EE 58.16%, #B840B4 77.16%, #FB9F18 96.16%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    transform: rotate(-90deg);
    position: absolute;
}

/* Content area */
.content-area {
    flex: 1;
    width: calc(100% - 10vw);
    margin-left: 10vw;
    padding: 20px;
    min-width: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

header {
    margin-bottom: 2rem;
}

h1 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.filters {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

/* Login notice */
.login-message {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}
.login-message.hidden {
    display: none;
}

.filter-group {
    display: flex;
    gap: 1rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    width: 100%;
}

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

select {
    width: 200px;
}

/* Materials grid and cards */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
    min-height: 200px;
    align-items: stretch;
}

.category-section {
    margin-bottom: 2.5rem;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 1rem 0;
    color: var(--text-primary);
}

.category-pagination {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

.pdf-card {
    background-color: var(--card-bg);
    border-radius: 0.75rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    min-height: 270px;
}

.pdf-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.pdf-icon {
    width: 48px;
    height: 48px;
    background-color:#fb3a3a;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: white;
    font-weight: bold;
}

.pdf-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
}

.pdf-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pdf-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    gap: 0.5rem;
    overflow: hidden;
}

.pdf-category {
    background-color: transparent;
    color: #ffffff;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    flex: 0 0 auto;
    max-width: 60%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pdf-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    flex-wrap: wrap;
}

.action-btn {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color 0.2s;
    background-color: #fb5e3a;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    flex: 1 1 120px;
}

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

.upload-section {
    text-align: center;
    margin-top: 2rem;
}

.upload-btn {
    background-color: #04b913;
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.upload-btn:hover {
    background-color: var(--accent-hover);
}

/* Empty state */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 0;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* User profile */
.auth-section {
    display: flex;
    align-items: center;
}

.user-profile {
    display: none;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: #fb5e3a;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 18px;
}

.logout-button {
    background-color: transparent;
    border: 1px solid #e24a4a;
    color: #e24a4a;
    padding: 3px 8px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.8rem;
}

.logout-button:hover {
    background-color: #ef6767;
    color: white;
}

.profilelogo {
    width: 35px;
    height: 35px;
    cursor: pointer;
}

/* Additional styles for modals and notifications */
.upload-modal,
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.upload-modal.show,
.login-modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--bg-secondary);
    border-radius: 0.75rem;
    padding: 2rem;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.upload-modal .modal-content {
    max-width: 760px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.schema-search {
    margin-top: 1rem;
}

.schema-search-input {
    width: 100%;
}

.schema-groups {
    margin-top: 1rem;
    overflow: auto;
    padding-right: 4px;
}

.schema-group {
    margin-bottom: 1rem;
}

.schema-group-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0.25rem 0 0.75rem;
}

.schema-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem;
}

.schema-option {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.75rem 0.9rem;
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.schema-option:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.18);
}

.schema-option:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.schema-option-text {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    overflow: hidden;
    word-break: break-word;
}

.stream-options {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.stream-options .upload-btn {
    flex: 1 1 140px;
}

.modal-actions {
    margin-top: 1rem;
    display: flex;
    justify-content: flex-end;
}

.upload-modal.show .modal-content,
.login-modal.show .modal-content {
    transform: translateY(0);
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    color: white;
    font-size: 0.875rem;
    z-index: 3000;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    max-width: 300px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.success {
    background-color: var(--success);
}

.toast.error {
    background-color: var(--error);
}

/* Responsive styles */
@media (max-width: 1024px) {
    .headroadtext {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0 15px;
    }
    
    .title {
        font-size: 36px;
    }
    
    .contents .lists {
        display: none;
    }
    
    .menu-icon {
        display: block;
    }
    
    .dropdown {
        display: none;
    }
    
    .dropdown.active {
        display: flex;
    }
    
    .headroadtext {
        font-size: 36px;
    }
    
    .filter-group {
        flex-direction: column;
    }
    
    select {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 28px;
    }
    
    .headroadtext {
        font-size: 28px;
    }
    
    .container {
        padding: 0.5rem;
    }
    
    .materials-grid {
        grid-template-columns: 1fr;
    }

    .schema-options {
        grid-template-columns: 1fr;
    }
}

/* Add these styles to your existing styles.css file */

/* User profile menu styling */
.user-profile {
    position: relative;
    display: flex;
    align-items: center;
}

.user-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: #fb5e3a;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.user-avatar:hover {
    background-color: #2980b9;
    transform: scale(1.05);
}

.user-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 150px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.user-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-menu-item {
    padding: 12px 15px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    font-size: 14px;
    color: #333;
}

.user-menu-item:hover {
    background-color: #f1f1f1;
}

.user-menu-item:not(:last-child) {
    border-bottom: 1px solid #eee;
}

/* Responsive adjustments */
@media screen and (max-width: 768px) {
    .user-menu {
        position: fixed;
        top: auto;
        bottom: 15px;
        right: 15px;
        width: 160px;
        border-radius: 8px;
    }
}

@media (max-width: 430px) {
    .menu-icon {
        font-size: 28px;
        padding: 10px;
        line-height: 1;
    }

    .dropdown {
        padding: 0.75rem;
    }

    .pdf-actions button,
    .upload-btn,
    .logout-button {
        min-height: 44px;
    }

    .modal-content {
        width: 95vw;
        max-width: none;
        max-height: 90vh;
        padding: 1.25rem;
    }

    .upload-modal .modal-content {
        max-height: 90vh;
    }
}

@media (max-width: 390px) {
    .headroadtext {
        font-size: 28px;
    }
}

@media (max-width: 360px) {
    .title {
        font-size: 26px;
    }

    input[type="text"],
    input[type="email"],
    input[type="password"],
    select {
        font-size: 16px;
    }
}