/* ============================================================
   admin.css — TibuTec panel de administración
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---- Variables ---- */
:root {
    --primary:      #0f172a;
    --primary-soft: #1e293b;
    --accent:       #3b82f6;
    --accent-dark:  #2563eb;
    --red:          #ef4444;
    --red-dark:     #dc2626;
    --green:        #22c55e;
    --text:         #1e293b;
    --text-muted:   #64748b;
    --bg:           #f1f5f9;
    --bg-card:      #ffffff;
    --border:       #e2e8f0;
    --sidebar-w:    260px;
}

/* ---- Reset ---- */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; }

/* ============================================================
   LAYOUT ADMIN
   ============================================================ */
.admin-body {
    background: var(--bg);
    display: flex;
    min-height: 100vh;
}

/* ---- Sidebar ---- */
.admin-sidebar {
    width: var(--sidebar-w);
    min-height: 100vh;
    background: var(--primary);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    z-index: 1000;
    transition: transform .3s ease;
    box-shadow: 4px 0 20px rgba(0,0,0,.15);
    overflow-y: auto;
}

.sidebar-header {
    padding: 22px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-header img {
    width: 38px; height: 38px;
    border-radius: 8px;
    object-fit: contain;
    background: rgba(255,255,255,.1);
    padding: 4px;
}
.sidebar-header h2 { color: white; font-size: .95rem; font-weight: 700; line-height: 1.2; }
.sidebar-header span { color: rgba(255,255,255,.4); font-size: .72rem; display: block; margin-top: 2px; }

.sidebar-nav {
    flex: 1;
    padding: 14px 10px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 11px 14px;
    background: none;
    border: none;
    border-radius: 8px;
    color: rgba(255,255,255,.55);
    font-size: .87rem;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s;
    text-align: left;
    width: 100%;
    font-family: inherit;
}
.nav-item i { width: 16px; font-size: .9rem; flex-shrink: 0; }
.nav-item:hover { background: rgba(255,255,255,.07); color: rgba(255,255,255,.9); }
.nav-item.active {
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 12px rgba(59,130,246,.35);
}

.sidebar-footer {
    padding: 12px 10px 18px;
    border-top: 1px solid rgba(255,255,255,.08);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.btn-back, .btn-logout {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 14px;
    border-radius: 8px;
    font-size: .83rem;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s;
    border: none;
    width: 100%;
    font-family: inherit;
}
.btn-back { background: rgba(255,255,255,.06); color: rgba(255,255,255,.6); }
.btn-back:hover { background: rgba(255,255,255,.12); color: white; }
.btn-logout { background: rgba(239,68,68,.12); color: #f87171; }
.btn-logout:hover { background: var(--red); color: white; }

/* Hamburguesa móvil */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 14px; left: 14px;
    z-index: 1100;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    width: 40px; height: 40px;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0,0,0,.2);
    align-items: center;
    justify-content: center;
}

/* ---- Contenido principal ---- */
.admin-main {
    margin-left: var(--sidebar-w);
    flex: 1;
    min-height: 100vh;
    padding: 2.5rem 2rem;
    transition: margin-left .3s;
}

.admin-container { max-width: 1080px; margin: 0 auto; }

/* ============================================================
   SECCIONES DEL ADMIN
   ============================================================ */
.admin-section {
    display: none;
    animation: fadeUp .3s ease;
}
.admin-section.active { display: block; }

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

/* Encabezado de sección */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: .75rem;
}
.section-header h2 {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -.4px;
}
.section-header h2 i { color: var(--accent); font-size: 1.1rem; }

.header-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Botones de acción */
.btn-save {
    background: var(--accent);
    color: white;
    border: none;
    padding: .6rem 1.2rem;
    border-radius: 8px;
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: all .2s;
    font-family: inherit;
}
.btn-save:hover { background: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(59,130,246,.3); }

.btn-add {
    background: var(--green);
    color: white;
    border: none;
    padding: .6rem 1.2rem;
    border-radius: 8px;
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: all .2s;
    font-family: inherit;
}
.btn-add:hover { background: #16a34a; transform: translateY(-1px); }

.btn-remove {
    background: rgba(239,68,68,.1);
    color: var(--red);
    border: none;
    border-radius: 6px;
    width: 32px; height: 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s;
    flex-shrink: 0;
    font-size: .85rem;
}
.btn-remove:hover { background: var(--red); color: white; }

/* Contenido de sección */
.section-content {
    background: var(--bg-card);
    border-radius: 14px;
    padding: 2rem;
    box-shadow: 0 1px 4px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.04);
    border: 1px solid var(--border);
}

/* Sub-sección */
.form-subsection {
    background: #f8fafc;
    border-radius: 10px;
    padding: 1.4rem;
    margin-top: .5rem;
    border: 1px solid var(--border);
}
.form-subsection h4 {
    font-size: .82rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 7px;
}

/* ============================================================
   FORMULARIOS
   ============================================================ */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
}
.form-row:last-child { margin-bottom: 0; }

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.full-width { grid-column: 1 / -1; }

.form-group label {
    font-size: .78rem;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 5px;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.form-group label i { color: var(--accent); font-size: .72rem; }

.hint { font-weight: 400; color: #94a3b8; font-size: .72rem; text-transform: none; letter-spacing: 0; }

.form-group input,
.form-group textarea,
.form-group select {
    padding: .6rem .9rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: .88rem;
    color: var(--text);
    transition: border-color .2s, box-shadow .2s;
    background: white;
    width: 100%;
    font-family: inherit;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(59,130,246,.12);
}
.form-group textarea { resize: vertical; min-height: 80px; }

/* ============================================================
   TARJETAS DE ITEMS (servicios, equipo, proyectos)
   ============================================================ */
.items-grid { display: flex; flex-direction: column; gap: 14px; }

.item-card {
    background: #fafbfc;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 1.4rem;
    transition: border-color .2s, box-shadow .2s;
}
.item-card:hover { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,.06); }

.item-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}
.item-card-header h4 {
    font-size: .9rem;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 7px;
}
.item-card-header h4 i { color: var(--accent); }

/* ============================================================
   GESTIÓN DE DATOS
   ============================================================ */
.data-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.2rem;
}

.action-card {
    background: white;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 1.8rem;
    text-align: center;
    transition: all .2s;
}
.action-card:hover { border-color: var(--accent); box-shadow: 0 4px 16px rgba(0,0,0,.07); }
.action-card.danger:hover { border-color: var(--red); }

.action-card > i { font-size: 1.8rem; color: var(--accent); margin-bottom: .8rem; display: block; }
.action-card.danger > i { color: var(--red); }
.action-card h4 { font-size: .95rem; font-weight: 700; color: var(--text); margin-bottom: .5rem; }
.action-card p  { font-size: .82rem; color: var(--text-muted); line-height: 1.55; margin-bottom: 1.2rem; }

.btn-action {
    background: var(--accent);
    color: white;
    border: none;
    padding: .6rem 1.4rem;
    border-radius: 8px;
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: all .2s;
    font-family: inherit;
}
.btn-action:hover { background: var(--accent-dark); transform: translateY(-1px); }
.btn-action.btn-danger { background: var(--red); }
.btn-action.btn-danger:hover { background: var(--red-dark); }

/* ============================================================
   LOGIN MODAL
   ============================================================ */
#loginModal {
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10001;
    opacity: 0;
    visibility: hidden;
    transition: all .3s;
    backdrop-filter: blur(6px);
}
#loginModal.active { opacity: 1; visibility: visible; }

.login-container {
    background: white;
    padding: 2.5rem;
    border-radius: 18px;
    box-shadow: 0 24px 60px rgba(0,0,0,.3);
    width: 90%;
    max-width: 400px;
    transform: translateY(-16px);
    transition: transform .3s;
}
#loginModal.active .login-container { transform: translateY(0); }

.login-header { text-align: center; margin-bottom: 1.8rem; position: relative; }
.login-header h2 { color: var(--text); font-size: 1.3rem; font-weight: 800; margin-bottom: .4rem; }
.login-header p { color: var(--text-muted); font-size: .85rem; }

.login-close {
    position: absolute;
    top: 0; right: 0;
    background: #f1f5f9;
    border: none;
    width: 30px; height: 30px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-muted);
    font-size: .8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s;
}
.login-close:hover { background: var(--red); color: white; }

.login-form { display: flex; flex-direction: column; gap: 14px; }
.login-form input {
    width: 100%;
    padding: .75rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: 9px;
    font-size: .92rem;
    transition: border-color .2s, box-shadow .2s;
    font-family: inherit;
}
.login-form input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px rgba(59,130,246,.12); }

.login-buttons { margin-top: 4px; }
.login-btn {
    width: 100%;
    padding: .8rem;
    border: none;
    border-radius: 9px;
    font-size: .95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all .2s;
    font-family: inherit;
}
.login-btn.primary { background: var(--accent); color: white; }
.login-btn.primary:hover { background: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(59,130,246,.3); }

.login-error {
    color: var(--red);
    font-size: .82rem;
    text-align: center;
    margin-top: .5rem;
    display: none;
    padding: .65rem;
    background: rgba(239,68,68,.08);
    border-radius: 8px;
}
.login-error.show { display: block; }

/* ============================================================
   RESPONSIVE ADMIN
   ============================================================ */
@media (max-width: 900px) {
    .admin-sidebar { transform: translateX(-100%); }
    .admin-sidebar.open { transform: translateX(0); }
    .sidebar-toggle { display: flex; }
    .admin-main { margin-left: 0; padding: 1.5rem 1rem; padding-top: 68px; }
    .form-row { grid-template-columns: 1fr; }
    .form-group.full-width { grid-column: 1; }
    .section-header { flex-direction: column; align-items: flex-start; }
    .data-actions { grid-template-columns: 1fr; }
    .section-content { padding: 1.4rem 1rem; }
}

@media (max-width: 480px) {
    .section-header h2 { font-size: 1.1rem; }
    .header-actions { width: 100%; }
    .btn-save, .btn-add { flex: 1; justify-content: center; }
    .item-card { padding: 1rem; }
}

/* ============================================================
   CARRUSEL DINÁMICO
   ============================================================ */
.carousel-images-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.carousel-images-header h4 {
    margin-bottom: 0;
}

.btn-add-image {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    color: white;
    border: none;
    padding: .45rem 1rem;
    border-radius: 8px;
    font-size: .82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    font-family: inherit;
}
.btn-add-image:hover { background: var(--accent-dark); transform: translateY(-1px); }

.carousel-images-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.carousel-image-row {
    display: grid;
    grid-template-columns: 28px 1fr 64px 34px;
    align-items: center;
    gap: 10px;
    background: white;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    padding: .65rem .9rem;
    transition: border-color .2s;
}
.carousel-image-row:hover { border-color: var(--accent); }

.carousel-image-num {
    width: 24px;
    height: 24px;
    background: var(--accent);
    color: white;
    border-radius: 50%;
    font-size: .72rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.carousel-image-row input {
    padding: .52rem .8rem;
    border: 1.5px solid var(--border);
    border-radius: 7px;
    font-size: .85rem;
    color: var(--text);
    font-family: inherit;
    transition: border-color .2s, box-shadow .2s;
    width: 100%;
}
.carousel-image-row input:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(59,130,246,.1);
}

.carousel-image-preview-wrap {
    width: 60px;
    height: 40px;
    border-radius: 6px;
    overflow: hidden;
    background: #f1f5f9;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.carousel-image-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.btn-remove-img {
    background: rgba(239,68,68,.1);
    color: var(--red);
    border: none;
    border-radius: 6px;
    width: 32px;
    height: 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .8rem;
    transition: all .2s;
    flex-shrink: 0;
}
.btn-remove-img:hover { background: var(--red); color: white; }

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
.admin-toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #1e293b;
    color: white;
    padding: .75rem 1.4rem;
    border-radius: 10px;
    font-size: .88rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,.2);
    opacity: 0;
    pointer-events: none;
    transition: all .3s ease;
    z-index: 99999;
    white-space: nowrap;
}
.admin-toast.success i { color: #22c55e; }
.admin-toast.error { background: #7f1d1d; }
.admin-toast.error i { color: #fca5a5; }
.admin-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

@media (max-width: 600px) {
    .carousel-image-row {
        grid-template-columns: 24px 1fr 34px;
    }
    .carousel-image-preview-wrap { display: none; }
}