/* =====================================================
   VOIPITALIA ADMIN INTERFACE - PROFESSIONAL DESIGN
   Complete Redesign - Clean, Modern, Professional
   ===================================================== */

:root {
    --primary: #0066ff;
    --secondary: #00d4ff;
    --success: #10b981;
    --warning: #ff6b35;
    --danger: #f44336;
    --dark-bg: #0a0e27;
    --dark-card: #131829;
    --darker-bg: #080b1a;
    --text-primary: #ffffff;
    --text-secondary: #a8b5c8;
    --text-tertiary: #7a8a9f;
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.05);
}

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

html, body {
    width: 100%;
    height: 100%;
}

body {
    background: var(--dark-bg);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* LAYOUT STRUCTURE */
.admin-container {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
    gap: 0;
}

/* =============== SIDEBAR =============== */
.admin-sidebar {
    background: linear-gradient(180deg, rgba(26, 35, 50, 0.95) 0%, rgba(15, 20, 25, 0.95) 100%);
    border-right: 1px solid var(--border);
    padding: 2rem 0;
    position: fixed;
    left: 0;
    top: 0;
    width: 260px;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.admin-sidebar::-webkit-scrollbar {
    width: 6px;
}

.admin-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.admin-sidebar::-webkit-scrollbar-thumb {
    background: rgba(0, 212, 255, 0.1);
    border-radius: 3px;
}

.admin-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 212, 255, 0.2);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
}

.sidebar-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 0.3rem;
    font-family: 'Space Grotesk', sans-serif;
}

.sidebar-header p {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-sidebar a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.25rem;
    color: var(--text-tertiary);
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: all 0.25s ease;
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0.25rem 0;
}

.admin-sidebar a:hover {
    color: var(--secondary);
    background: rgba(0, 212, 255, 0.05);
    border-left-color: var(--secondary);
    padding-left: 1.5rem;
}

.admin-sidebar a.active {
    color: var(--secondary);
    background: rgba(0, 212, 255, 0.08);
    border-left-color: var(--secondary);
    font-weight: 600;
}

/* =============== MAIN CONTENT =============== */
.admin-main {
    margin-left: 260px;
    background: var(--dark-bg);
    min-height: 100vh;
    padding: 2.5rem 3rem;
    overflow-x: hidden;
}

/* PAGE HEADER */
.page-header {
    margin-bottom: 2.5rem;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: 'Space Grotesk', sans-serif;
    margin: 0;
}

.page-header-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* =============== MESSAGES =============== */
.message {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border-left: 4px solid;
    display: flex;
    gap: 1rem;
    align-items: center;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.success {
    background: rgba(16, 185, 129, 0.08);
    color: var(--success);
    border-color: var(--success);
}

.message.error {
    background: rgba(244, 67, 54, 0.08);
    color: var(--danger);
    border-color: var(--danger);
}

/* =============== FORMS =============== */
.form-card {
    background: var(--dark-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2.5rem;
    transition: all 0.3s ease;
}

.form-card:hover {
    border-color: rgba(0, 212, 255, 0.15);
}

.form-card h2 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 1.5rem;
    font-family: 'Space Grotesk', sans-serif;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group label .required {
    color: var(--danger);
}

.form-group input,
.form-group textarea,
.form-group select {
    background: var(--darker-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary);
    background: rgba(0, 212, 255, 0.02);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    font-size: 0.9rem;
}

.form-group select {
    cursor: pointer;
}

/* =============== BUTTONS =============== */
.button-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.btn {
    padding: 0.75rem 1.75rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    color: var(--dark-bg);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    background: var(--border);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
}

.btn-danger {
    background: rgba(244, 67, 54, 0.1);
    color: var(--danger);
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.btn-danger:hover {
    background: rgba(244, 67, 54, 0.15);
    border-color: rgba(244, 67, 54, 0.5);
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    gap: 0.3rem;
}

.btn-edit {
    background: rgba(0, 212, 255, 0.1);
    color: var(--secondary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-edit:hover {
    background: rgba(0, 212, 255, 0.15);
}

.btn-delete {
    background: rgba(244, 67, 54, 0.1);
    color: var(--danger);
    border: 1px solid rgba(244, 67, 54, 0.3);
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-delete:hover {
    background: rgba(244, 67, 54, 0.15);
}

/* =============== TABLES =============== */
.table-wrapper {
    background: var(--dark-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 2rem;
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

table thead th {
    background: var(--darker-bg);
    border-bottom: 2px solid var(--border);
    color: var(--secondary);
    font-weight: 700;
    padding: 1.2rem;
    text-align: left;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

table tbody td {
    padding: 1.2rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
}

table tbody tr {
    transition: all 0.2s ease;
}

table tbody tr:hover {
    background: rgba(0, 212, 255, 0.04);
}

table tbody tr:last-child td {
    border-bottom: none;
}

table strong {
    color: var(--text-primary);
}

/* =============== BADGES =============== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge.pending {
    background: rgba(255, 107, 53, 0.15);
    color: var(--warning);
}

.badge.approved {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge.rejected {
    background: rgba(244, 67, 54, 0.15);
    color: var(--danger);
}

.badge.active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge.inactive {
    background: rgba(122, 138, 159, 0.15);
    color: var(--text-tertiary);
}

.badge.published {
    background: rgba(0, 212, 255, 0.15);
    color: var(--secondary);
}

.badge.draft {
    background: rgba(255, 107, 53, 0.15);
    color: var(--warning);
}

/* =============== CARDS =============== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--dark-card) 0%, rgba(19, 24, 41, 0.7) 100%);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.8rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary), transparent);
}

.stat-card:hover {
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 0.5rem;
    font-family: 'Space Grotesk', sans-serif;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* =============== LOGIN PAGE =============== */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    padding: 1rem;
}

.login-box {
    background: var(--dark-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.login-box h2 {
    text-align: center;
    color: var(--secondary);
    margin-bottom: 2rem;
    font-size: 1.8rem;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
}

.login-box .form-group {
    margin-bottom: 1.5rem;
}

.login-box .form-group input {
    padding: 0.8rem;
}

.login-box button {
    width: 100%;
    padding: 0.9rem;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    color: var(--dark-bg);
    border: none;
    border-radius: 6px;
    font-weight: 700;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
}

.login-box button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.3);
}

.demo-credentials {
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 2rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.demo-credentials strong {
    color: var(--secondary);
}

/* =============== RESPONSIVE DESIGN =============== */
@media (max-width: 1200px) {
    .admin-main {
        padding: 2rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .admin-container {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        width: 100%;
        height: auto;
        position: relative;
        padding: 1.5rem 0;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .admin-main {
        margin-left: 0;
        padding: 1.5rem;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .stat-card {
        padding: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .button-group {
        flex-direction: column;
        gap: 0.75rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .form-card {
        padding: 1.5rem;
    }

    table {
        font-size: 0.8rem;
    }

    table thead th {
        padding: 0.8rem;
    }

    table tbody td {
        padding: 0.8rem;
    }

    .badge {
        padding: 0.35rem 0.7rem;
        font-size: 0.7rem;
    }

    .sidebar-header {
        padding: 1rem;
    }

    .admin-sidebar a {
        padding: 0.7rem 1rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .admin-main {
        padding: 1rem;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .page-header {
        margin-bottom: 1.5rem;
    }

    .form-card {
        padding: 1rem;
    }

    .form-card h2 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .form-group label {
        font-size: 0.8rem;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 0.9rem;
        padding: 0.6rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    table {
        font-size: 0.75rem;
    }

    table thead th {
        padding: 0.6rem;
    }

    table tbody td {
        padding: 0.6rem;
    }

    .login-box {
        padding: 2rem;
    }

    .login-box h2 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
}