/* =======================================================================
 *
 * Event Management Platform - Production Stylesheet
 *
 * TABLE OF CONTENTS
 * -----------------
 * 1.  Settings    - Root variables, global settings.
 * 2.  Generic     - Resets and base element styles (body, html).
 * 3.  Elements    - Base styling for h1, p, a, table, etc.
 * 4.  Layout      - Main page structure (wrapper, sidebar, content).
 * 5.  Components  - Reusable modules (.glass-card, .cta-button, forms).
 * 6.  Pages       - Page-specific overrides and layouts.
 * 7.  Responsive  - All @media queries consolidated in one place.
 *
 * ======================================================================= */

/* * -----------------------------------------------------------------------
 * 1. SETTINGS
 * -----------------------------------------------------------------------
 */
:root {
    --color-primary: #001f3f;       /* Navy Blue */
    --color-secondary: #aaaaaa;     /* Grey */
    --color-background: #0d1a29;    /* Dark background */
    --color-text-light: #f4f4f4;
    --color-text-dark: #333333;
    --color-accent: #007bff;        /* A bright accent for buttons */
    --color-error: #dc3545;
    --color-success: #28a745;
}

/* * -----------------------------------------------------------------------
 * 2. GENERIC
 * -----------------------------------------------------------------------
 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    background-color: var(--color-background);
    color: var(--color-text-light);
    min-height: 100vh;
}

/* * -----------------------------------------------------------------------
 * 3. ELEMENTS
 * -----------------------------------------------------------------------
 */
h1, h2, h3 {
    margin-bottom: 0.5em;
    font-weight: 600;
}

p {
    margin-bottom: 1em;
}

a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: #4a90e2;
}

hr {
    border: none;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.2);
    margin: 2rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
}

/* * -----------------------------------------------------------------------
 * 4. LAYOUT
 * -----------------------------------------------------------------------
 */
.page-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar-menu {
    flex-shrink: 0;
    width: 250px;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    border-radius: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.content-wrapper {
    flex-grow: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.main-content {
    flex-grow: 1;
    display: flex;
    width: 100%;
    max-width: 1200px;
    padding: 1rem 0;
    gap: 2rem;
}

.main-footer {
    padding: 1rem;
    text-align: center;
    color: var(--color-secondary);
    margin-top: auto;
}

/* * -----------------------------------------------------------------------
 * 5. COMPONENTS
 * -----------------------------------------------------------------------
 */

/* --- Glass Card Component --- */
.glass-card {
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.sidebar-menu.glass-card {
    box-shadow: none;
    border-radius: 0;
    transform: none !important;
}

/* --- Logo Component --- */
.logo-container {
    display: flex;
    align-items: center;
}
.company-logo {
    height: 40px;
    width: auto;
    margin-right: 10px;
}
.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
}

/* --- Sidebar Navigation Component --- */
.sidebar-nav {
    width: 100%;
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.sidebar-nav .nav-item {
    display: block;
    padding: 0.75rem 1rem;
    text-align: left;
    border-radius: 8px;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.sidebar-nav .nav-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
}
.sidebar-nav .nav-item.active {
    background-color: var(--color-accent);
    font-weight: bold;
    color: #fff;
}

/* --- Button Components --- */
.cta-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: bold;
    text-align: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    background-color: var(--color-accent);
    color: var(--color-text-light);
}
.cta-button:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}
.cta-button.delete-button {
    background-color: var(--color-error);
    border-color: var(--color-error);
}
.cta-button.delete-button:hover {
    background-color: #a71d2a;
}
#add-field-button {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--color-secondary);
}
#add-field-button:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: var(--color-text-light);
}

/* --- Form Components --- */
.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}
.form-group input, 
.form-group textarea, 
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-secondary);
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-text-light);
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
/* ACCESSIBILITY: Styles for keyboard focus */
.form-group input:focus-visible, 
.form-group textarea:focus-visible, 
.form-group select:focus-visible,
.cta-button:focus-visible,
#menu-toggle:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.5);
}
.form-group select option {
    background: #fff;
    color: var(--color-text-dark);
}

/* --- Message/Alert Components --- */
.error-message, .success-message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: bold;
    width: 100%;
}
.error-message {
    background-color: rgba(220, 53, 69, 0.2);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}
.success-message {
    background-color: rgba(40, 167, 69, 0.2);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

/* --- Table Component --- */
.table-container {
    overflow-x: auto;
}
.table-container thead {
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}
.table-container th, 
.table-container td {
    padding: 1rem;
    text-align: left;
    vertical-align: middle;
}
.table-container tbody tr {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
.table-container tbody tr:last-child {
    border-bottom: none;
}

/* * -----------------------------------------------------------------------
 * 6. PAGES
 * -----------------------------------------------------------------------
 */

/* --- Common Page Section Layout --- */
.welcome-section,
.auth-section,
.dashboard-section,
.events-view-section,
.event-register-section,
.events-create-section,
.events-manage-section,
.admin-users-section {
    justify-content: center;
    flex-direction: column;
    align-items: center;
}
.welcome-card, .auth-card, .dashboard-card {
    padding: 3rem 2.5rem;
    text-align: center;
}
.welcome-card { max-width: 600px; }
.auth-card { max-width: 450px; }
.dashboard-card { max-width: 800px; }
.page-title-card {
    width: 100%;
    margin-bottom: 2rem;
    padding: 2rem 2.5rem;
    text-align: center;
}

/* --- Page: Dashboard --- */
.dashboard-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}
.dashboard-button {
    min-width: 250px;
}

/* --- Page: Events View --- */
.event-list-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    width: 100%;
}
.event-card {
    flex-basis: calc(33.333% - 2rem);
    min-width: 300px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.event-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1rem;
}
.event-logo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: scale-down;
    background-color: #fff;
    margin-bottom: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
}
.event-date {
    font-size: 0.9rem;
    color: var(--color-secondary);
}
.event-description {
    flex-grow: 1;
}
.event-register-button {
    margin-top: 1.5rem;
    width: 100%;
}
.empty-state {
    padding: 3rem;
    text-align: center;
    width: 100%;
}

/* --- Page: Event Register --- */
.event-branding {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1rem;
}
.event-logo-large {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: scale-down;
    background-color: #fff;
    margin-bottom: 1.5rem;
    border: 3px solid rgba(255, 255, 255, 0.4);
}
.event-registration-form-card {
    max-width: 600px;
    width: 100%;
    padding: 2.5rem;
    margin-top: 2rem;
}

/* --- Page: Event Create --- */
.event-form-card {
    width: 100%;
    max-width: 800px;
    padding: 2rem 2.5rem;
}
#dynamic-fields-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1rem;
}
.dynamic-field {
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1.5rem;
    padding-top: 2.5rem;
    border-radius: 15px;
    background-color: rgba(0, 0, 0, 0.1);
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: center;
}
#dynamic-fields-container > .dynamic-field:first-child {
    border: none;
    padding: 0;
    background: none;
    grid-template-columns: 1fr 1fr;
}
.remove-field-button {
    background-color: transparent;
    color: var(--color-secondary);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    padding: 0.5rem;
    position: absolute;
    top: 5px;
    right: 10px;
    transition: color 0.3s ease;
}
.remove-field-button:hover {
    color: var(--color-error);
}
.remove-field-button::before {
    content: '×';
}
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    grid-column: 1 / -1;
    margin-top: -0.5rem;
}
.checkbox-group input[type="checkbox"] {
    width: auto;
    flex-shrink: 0;
}
.checkbox-group label {
    margin-bottom: 0;
    font-weight: normal;
}

/* --- Page: Event Manage --- */
.events-manage-section .event-list-container {
    flex-direction: column;
    max-width: 900px;
    width: 100%;
}
.events-manage-section .event-card {
    align-items: flex-start;
    text-align: left;
    width: 100%;
}
.events-manage-section .event-header {
    flex-direction: row;
    gap: 1rem;
    width: 100%;
    align-items: center;
}
.events-manage-section .event-logo {
    width: 60px;
    height: 60px;
    margin-bottom: 0;
}
.events-manage-section .event-date {
    width: 100%;
    padding-left: 76px;
    margin-top: -0.5rem;
    margin-bottom: 1.5rem;
}
.event-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    width: 100%;
    margin-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 1.5rem;
}
.event-actions form {
    margin: 0;
}

/* --- Page: Admin Users --- */
.user-table-card, .user-create-card {
    width: 100%;
    max-width: 1200px;
    padding: 2rem 2.5rem;
}
.user-table-card h2, .user-create-card h2 {
    margin-bottom: 1.5rem;
}
.table-container td[data-label="Actions"] {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.edit-user-form {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-grow: 1;
}
.edit-user-form input, .edit-user-form select {
    min-width: 120px;
}

/* --- Mobile Slider Menu --- */
.mobile-header {
    display: none; /* Hidden on desktop */
}
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
body.menu-open .menu-overlay {
    opacity: 1;
    visibility: visible;
}


/* * -----------------------------------------------------------------------
 * 7. RESPONSIVE
 * -----------------------------------------------------------------------
 */

/* --- Breakpoint: Large Tablets (<= 992px) --- */
@media (max-width: 992px) {
    /* Events View */
    .event-card {
        flex-basis: calc(50% - 2rem);
    }
    
    /* Admin Users Table */
    .table-container thead {
        display: none;
    }
    .table-container tr {
        display: block;
        margin-bottom: 1.5rem;
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 15px;
        padding: 1rem;
    }
    .table-container tr:last-child { margin-bottom: 0; }
    .table-container td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.75rem 0.5rem;
        text-align: right;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .table-container td:last-child { border-bottom: none; }
    .table-container td::before {
        content: attr(data-label);
        font-weight: bold;
        text-align: left;
        margin-right: 1rem;
    }
    .table-container td[data-label="Actions"] {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    .edit-user-form {
        flex-direction: column;
        align-items: stretch;
    }
    .edit-user-form button,
    .cta-button.delete-button {
        width: 100%;
        text-align: center;
    }
}

/* --- Breakpoint: Tablets & Small Desktops (<= 768px) --- */
@media (max-width: 768px) {
    .content-wrapper,
    .event-form-card,
    .event-registration-form-card {
        padding: 1.5rem;
    }
    #dynamic-fields-container > .dynamic-field,
    #dynamic-fields-container > .dynamic-field:first-child {
        grid-template-columns: 1fr;
    }
    .checkbox-group {
        grid-column: 1;
    }
    
    /* MOBILE SLIDER MENU ACTIVATION */
    .desktop-logo {
        display: none;
    }
    .mobile-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.75rem 1rem;
        background-color: var(--color-primary);
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }
    #menu-toggle {
        background: transparent;
        border: none;
        cursor: pointer;
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        width: 30px;
        height: 24px;
        padding: 0;
    }
    #menu-toggle span {
        width: 100%;
        height: 3px;
        background-color: var(--color-text-light);
        border-radius: 2px;
        transition: all 0.3s ease;
    }
    body.menu-open #menu-toggle span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    body.menu-open #menu-toggle span:nth-child(2) {
        opacity: 0;
    }
    body.menu-open #menu-toggle span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    .content-wrapper {
        padding-top: 80px; 
    }
    .sidebar-menu {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        width: 280px;
        z-index: 999;
        border-right: 1px solid rgba(255, 255, 255, 0.2);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        text-align: left;
        padding: 6rem 1.5rem 2rem 1.5rem;
        transform: translateX(-100%);
        transition: transform 0.35s ease-in-out;
    }
    body.menu-open .sidebar-menu {
        transform: translateX(0);
    }
    .sidebar-nav {
        flex-direction: column;
        gap: 0.5rem;
        margin-top: 2rem;
        text-align: left;
    }
}

/* --- Breakpoint: Large Phones (<= 600px) --- */
@media (max-width: 600px) {
    .event-list-container {
        flex-direction: column;
    }
    .event-card {
        flex-basis: 100%;
    }
    .events-manage-section .event-date {
        padding-left: 0;
        margin-top: 1rem;
    }
    .events-manage-section .event-header {
        align-items: flex-start;
    }
}

/* --- Breakpoint: Small Phones (<= 480px) --- */
@media (max-width: 480px) {
    .logo-text {
        font-size: 1.2rem;
    }
    .auth-card {
        padding: 2rem 1.5rem;
    }
}