/* ==========================================================================
   DISEÑO CENTRALIZADO & VARIABLES - PAMPLING SHARE
   ========================================================================== */
:root {
    --bg-gradient: linear-gradient(135deg, #090615 0%, #120e26 100%);
    --card-bg: rgba(22, 17, 43, 0.55);
    --card-border: rgba(255, 255, 255, 0.07);
    --input-bg: rgba(10, 8, 22, 0.6);
    --input-border: rgba(121, 71, 248, 0.25);
    
    /* Colores HSL Tailored */
    --primary: #7947f8;
    --primary-glow: rgba(121, 71, 248, 0.4);
    --secondary: #a855f7;
    --secondary-glow: rgba(168, 85, 247, 0.4);
    --text-main: #f3f1f8;
    --text-muted: #9f9cb6;
    --success: #10b981;
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.3);
    
    /* Transiciones y Sombras */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(121, 71, 248, 0.2);
    
    --radius-lg: 16px;
    --radius-md: 10px;
}

/* Reset y Estilos Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background: #090615;
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Fondo Dinámico con Gradiente y Blur */
.glass-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-gradient);
    z-index: -2;
}

.glass-bg::after {
    content: '';
    position: absolute;
    top: 15%;
    left: 20%;
    width: 350px;
    height: 350px;
    background: var(--primary);
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.15;
    animation: float-blob 20s infinite alternate;
    z-index: -1;
}

.glass-bg::before {
    content: '';
    position: absolute;
    bottom: 20%;
    right: 15%;
    width: 400px;
    height: 400px;
    background: var(--secondary);
    border-radius: 50%;
    filter: blur(160px);
    opacity: 0.12;
    animation: float-blob 25s infinite alternate-reverse;
    z-index: -1;
}

@keyframes float-blob {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 40px) scale(1.15); }
}

/* Contenedor Principal */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    font-size: 2.8rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px var(--primary-glow));
}

.logo-text h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-text h1 span {
    background: linear-gradient(135deg, var(--primary) 30%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.stats-badge {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(5px);
}

.stats-badge #project-count {
    color: var(--secondary);
    font-weight: 700;
}

/* ==========================================================================
   MAIN LAYOUT & CARDS (GLASSMORPHISM)
   ========================================================================== */
.app-main {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 2.5rem;
    flex-grow: 1;
}

.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition);
}

.glass-card h2 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Formularios */
.form-group {
    margin-bottom: 1.25rem;
}

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

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

input[type="text"],
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.9rem;
    transition: var(--transition);
}

input[type="text"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 12px rgba(168, 85, 247, 0.2);
}

.helper-text {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

/* Zona Drag & Drop */
.drag-drop-zone {
    position: relative;
    border: 2px dashed var(--input-border);
    border-radius: var(--radius-md);
    padding: 1.8rem 1rem;
    text-align: center;
    background: rgba(10, 8, 22, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.drag-drop-zone:hover,
.drag-drop-zone.dragover {
    border-color: var(--secondary);
    background: rgba(168, 85, 247, 0.05);
}

.drag-drop-zone input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-arrow {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 0.6rem;
    transition: var(--transition);
}

.drag-drop-zone:hover .upload-arrow {
    transform: translateY(-3px);
    color: var(--secondary);
}

.drag-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.drag-text span {
    color: var(--primary);
    font-weight: 500;
    text-decoration: underline;
}

.file-info {
    font-size: 0.8rem;
    color: var(--success);
    margin-top: 0.5rem;
    font-weight: 500;
    display: none;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    box-shadow: 0 0 20px var(--primary-glow);
    transform: translateY(-1px);
}

.btn-block {
    width: 100%;
    margin-top: 1rem;
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    box-shadow: 0 0 15px var(--danger-glow);
}

/* Barra de Progreso */
.progress-container {
    margin-top: 1.2rem;
    display: none;
}

.progress-bar-wrapper {
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.4rem;
}

/* ==========================================================================
   LISTADO Y GRID DE PROYECTOS
   ========================================================================== */
.list-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Agrupamiento por Proyecto */
.project-group-container {
    margin-bottom: 2rem;
}

.project-group-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 0.6rem;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.project-group-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-group-icon {
    color: var(--primary);
    font-size: 1.25rem !important;
}

.project-group-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: normal;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 0.15rem 0.5rem;
    border-radius: 12px;
    margin-left: 0.25rem;
}

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-bar {
    position: relative;
    width: 100%;
    max-width: 450px;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.search-bar input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.8rem;
    background: rgba(22, 17, 43, 0.45);
    border: 1px solid var(--card-border);
    border-radius: 50px;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.9rem;
    transition: var(--transition);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(22, 17, 43, 0.7);
    box-shadow: var(--shadow-glow);
}

/* Grid de tarjetas */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    align-content: start;
}

/* Tarjeta Individual de Proyecto */
.project-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 230px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(8px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: rgba(121, 71, 248, 0.3);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(121, 71, 248, 0.1);
}

.project-card:hover::before {
    opacity: 1;
}

/* Detalles de Tarjeta */
.card-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.project-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: white;
    line-height: 1.3;
}

.delete-btn-corner {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.delete-btn-corner:hover {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.project-slug {
    font-size: 0.75rem;
    color: var(--primary);
    background: rgba(121, 71, 248, 0.15);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 0.8rem;
    font-weight: 500;
}

.project-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.2rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-grow: 1;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 0.8rem;
    margin-bottom: 1rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.meta-item .material-symbols-outlined {
    font-size: 0.95rem;
}

/* Acciones de Tarjeta */
.card-actions {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 0.5rem;
}

.card-actions .btn {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

/* Botón cuadradito de icono — base reutilizable */
.btn-icon {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    aspect-ratio: 1;
    padding: 0.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
}

.btn-edit:hover {
    background: rgba(121, 71, 248, 0.15);
    border-color: var(--primary-glow);
    color: var(--primary);
}

.btn-copy {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    aspect-ratio: 1;
    padding: 0.5rem;
}

.btn-copy:hover {
    background: rgba(255, 255, 255, 0.08);
}

.btn-copy.copied {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--success);
    color: var(--success);
}

/* Banner del modo edición en el formulario de subida */
.edit-banner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    margin: 0 0 1.25rem;
    background: rgba(121, 71, 248, 0.12);
    border: 1px solid var(--primary-glow);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-size: 0.85rem;
    line-height: 1.4;
}

.edit-banner .material-symbols-outlined {
    color: var(--primary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.edit-banner strong {
    color: var(--primary);
    font-weight: 600;
}

.upload-section.is-editing .glass-card {
    border-color: var(--primary-glow);
    box-shadow: 0 0 0 1px var(--primary-glow), var(--shadow-md);
}

/* Campos deshabilitados (slug bloqueado en modo edición) */
.form-group input:disabled,
.form-group input[readonly] {
    opacity: 0.6;
    cursor: not-allowed;
    background: rgba(10, 8, 22, 0.4);
}

#btn-cancel-edit {
    margin-top: 0.5rem;
}

/* Spinner e Info del cargador */
.loader-wrapper,
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.empty-state .material-symbols-outlined {
    font-size: 3.5rem;
    color: var(--primary-glow);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(121, 71, 248, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   ELEMENTOS DE COMPLEMENTO: TOAST & MODAL
   ========================================================================== */
/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: rgba(18, 14, 38, 0.85);
    border: 1px solid var(--success);
    border-left: 5px solid var(--success);
    border-radius: var(--radius-md);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transform: translateY(120%);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

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

.toast.error {
    border-color: var(--danger);
    border-left-color: var(--danger);
}

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

/* Confirm Dialog Overlay */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(5, 3, 12, 0.75);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.dialog-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.dialog-card {
    background: #141026;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 2rem;
    width: 90%;
    max-width: 450px;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.dialog-overlay.show .dialog-card {
    transform: scale(1);
}

.warning-icon {
    font-size: 3.5rem;
    color: var(--danger);
    margin-bottom: 0.8rem;
}

.dialog-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.dialog-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.75rem;
}

.dialog-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.dialog-actions .btn {
    flex: 1;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.app-footer-bar {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ==========================================================================
   MEDIA QUERIES (RESPONSIVE)
   ========================================================================== */
@media (max-width: 1100px) {
    .app-main {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .app-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .stats-badge {
        align-self: flex-start;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .dialog-actions {
        flex-direction: column;
    }
}