/* =========================================
   1. Global Variables & Resets
   ========================================= */
:root {
    --bs-primary: #19004d; /* Corporate Violet */
    --bs-primary-rgb: 25, 0, 77;
    
    --bs-danger: #ec008c; /* Magenta */
    --bs-danger-rgb: 236, 0, 140;
    
    --bs-info: #00adef; /* Cyan */
    --bs-info-rgb: 0, 173, 239;
    
    --bs-warning: #fff200; /* Yellow */
    --bs-warning-rgb: 255, 242, 0;
    
    --bs-body-font-family: 'Montserrat', sans-serif;
    --bs-body-bg: #f8f9fa;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1 0 auto;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background-color: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-track { background-color: transparent; }

/* =========================================
   2. Utilities & Backgrounds
   ========================================= */
.bg-radial-pattern {
    background-color: #f0f2f5;
    background-image: radial-gradient(#dee2e6 1px, transparent 1px);
    background-size: 20px 20px;
}

.fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    opacity: 0;
    transform: translateY(30px);
}

@keyframes fadeInUp {
    to { opacity: 1; transform: translateY(0); }
}

.opacity-10 { opacity: 0.1; }
.opacity-75 { opacity: 0.75; }

/* Buttons & Links */
.btn-warning { color: #000; font-weight: 500; }
.btn-info { color: #fff; font-weight: 500; }
.btn-primary { background-color: var(--bs-primary); border-color: var(--bs-primary); }
.btn-outline-primary { color: var(--bs-primary); border-color: var(--bs-primary); }
.btn-outline-primary:hover { background-color: var(--bs-primary); color: #fff; }

.custom-hover-btn { transition: transform 0.2s, box-shadow 0.2s; }
.custom-hover-btn:hover { transform: translateY(-2px); box-shadow: 0 .5rem 1rem rgba(0,0,0,.15)!important; }

.hover-primary:hover { color: var(--bs-primary) !important; text-decoration: underline !important; }

/* =========================================
   3. Layout Components (Navbar, Footer)
   ========================================= */
.navbar {
    background-color: #ffffff;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.navbar-brand {
    font-weight: 700;
    color: var(--bs-primary) !important;
    letter-spacing: -0.02em;
}
.nav-link {
    font-weight: 500;
    color: #555;
    transition: color 0.2s;
}
.nav-link:hover, .nav-link.active {
    color: var(--bs-primary);
}

footer {
    background-color: #19004d;
    color: rgba(255,255,255,0.8);
    margin-top: auto;
}

/* =========================================
   4. Cards & Containers
   ========================================= */
.card-modern {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    background: #fff;
    height: 100%;
}

.form-wrapper {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-left: 4px solid var(--bs-primary);
    border-radius: 0.75rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    padding: 1rem;
    margin-bottom: 1rem;
}
.form-wrapper:hover {
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* =========================================
   5. PDF Editor / Canvas Workspace
   ========================================= */
#pdf-contents {
    position: relative;
    display: inline-block;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
    transition: transform 0.2s;
}

.canvas-container, [id^="canvasContainer"] {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
}
[id^="canvasContainer"] { pointer-events: none; }
[id^="canvasContainer"] canvas { pointer-events: auto; }

.sidebar-sticky {
    position: sticky;
    top: 90px;
    height: calc(100vh - 120px);
    overflow-y: auto;
    scrollbar-width: thin;
}

.floating-toolbar {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 500;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 50px;
    padding: 8px 16px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    display: flex;
    gap: 12px;
    align-items: center;
    width: max-content;
    max-width: 98%;
    flex-wrap: nowrap;
    overflow-x: auto;
}

.canvas-workspace {
    background-color: #f0f2f5;
    background-image: radial-gradient(#dee2e6 1px, transparent 1px);
    background-size: 20px 20px;
    border-radius: 0 0 1rem 1rem;
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: flex-start; 
}

#pdf-main-container {
    width: 100%;
    height: 100%;
    overflow: auto;
    padding: 100px 20px 50px 20px;
}

#pdf-main-container::-webkit-scrollbar { width: 8px; height: 8px; }
#pdf-main-container::-webkit-scrollbar-thumb { background-color: #cbd5e1; border-radius: 4px; }
#pdf-main-container::-webkit-scrollbar-track { background-color: transparent; }

#app-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(5px);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
#app-loader.show {
    opacity: 1;
    visibility: visible;
}
/* Spinner Container */
.loader-animation-wrapper {
    position: relative;
    width: 100px;
    height: 100px;
    margin-bottom: 25px;
}

/* Three Rings */
.loader-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: var(--bs-primary);
    animation: spin-ring 1.5s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.loader-ring:nth-child(2) {
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
    border-top-color: var(--bs-danger);
    animation: spin-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite reverse;
}

.loader-ring:nth-child(3) {
    width: 40%;
    height: 40%;
    top: 30%;
    left: 30%;
    border-top-color: var(--bs-info);
    animation: spin-ring 0.9s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

/* Center Icon */
.loader-center-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--bs-primary);
    font-size: 1.2rem;
    animation: pulse-icon 2s ease-in-out infinite;
}

@keyframes spin-ring {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse-icon {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    50% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.7; }
}

/* Text Styling */
.loader-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    background: linear-gradient(90deg, var(--bs-primary), var(--bs-danger));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.loader-subtitle {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    color: #6c757d;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.loader-dots span {
    display: inline-block;
    width: 4px;
    height: 4px;
    background-color: #6c757d;
    border-radius: 50%;
    animation: loader-dots 1.4s infinite ease-in-out both;
}

.loader-dots span:nth-child(1) { animation-delay: -0.32s; }
.loader-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes loader-dots {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}
.form-label { text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.5px; font-weight: 600; color: #6c757d; }

/* =========================================
   6. Results & Tables
   ========================================= */
.download-tile {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    text-decoration: none;
    color: #495057;
    transition: all 0.2s;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
}
.download-tile:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border-color: var(--bs-primary);
    color: var(--bs-primary);
}
.download-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.download-tile-final {
    background: #f8f9fa;
    padding: 2rem 1.5rem;
    gap: 15px;
}
.download-tile-final:hover {
    box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.1);
    background: #fff;
}
.download-tile-final i {
    font-size: 2.5rem;
    transition: color 0.2s;
}
.download-tile-final:hover i {
    color: var(--bs-primary);
}

.download-tile.save-db {
    background: #e0f2fe;
    border-color: #bae6fd;
}
.download-tile.save-db:hover {
    background: #0ea5e9;
    color: white;
    border-color: #0ea5e9;
}
.download-tile.save-db:hover i {
    color: white;
}

.table-custom th {
    background-color: #f8f9fa;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #6c757d;
}
.table-custom td {
    vertical-align: middle;
    font-size: 0.9rem;
}