/* ---------------------------------- */
/* --- THEME & COLOR VARIABLES --- */
/* ---------------------------------- */
:root {
    /* Dark Theme (Default) */
    --color-bg-primary: #0D1117;
    --color-bg-secondary: #161B22;
    --color-bg-secondary-rgb: 22, 27, 34;
    --color-bg-input: #161B22;
    --color-border: #30363D;
    --color-border-rgb: 48, 54, 61;
    --color-accent: #58A6FF;
    --color-text-primary: #e6edf3;
    --color-text-secondary: #7d8590;
    --color-mod-bg-start: #1f6feb;
    --color-mod-bg-end: #58A6FF;
    --color-success: #28a745;
    --color-success-dark: #218838;
}

html.light-mode {
    /* Light Theme */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F3F4F6;
    --color-bg-secondary-rgb: 243, 244, 246;
    --color-bg-input: #FFFFFF;
    --color-border: #D1D5DB;
    --color-border-rgb: 209, 213, 219;
    --color-accent: #3B82F6;
    --color-text-primary: #1F2937;
    --color-text-secondary: #6B7280;
    --color-mod-bg-start: #3B82F6;
    --color-mod-bg-end: #60A5FA;
    --color-success: #16A34A;
    --color-success-dark: #15803D;
}


/* ---------------------------------- */
/* --- Custom Base Styles & Overrides --- */
/* ---------------------------------- */
html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: 'Inter', sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease;
    /* --- NEW: Subtle Background Pattern --- */
    background-image: radial-gradient(var(--color-border) 0.5px, transparent 0.5px);
    background-size: 15px 15px;
}

/* --- NEW: Prevent body scroll when modal is open --- */
body.modal-open {
    overflow: hidden;
}

header {
    background-color: rgba(var(--color-bg-secondary-rgb), 0.8);
    transition: background-color 0.3s ease;
}

/* Custom Scrollbar */
body::-webkit-scrollbar {
    width: 12px;
}
body::-webkit-scrollbar-track {
    background: var(--color-bg-primary);
}
body::-webkit-scrollbar-thumb {
    background-color: var(--color-bg-secondary);
    border-radius: 20px;
    border: 3px solid var(--color-bg-primary);
}
body::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-border);
}

/* Magnific Popup Customization */
.mfp-bg {
    background: rgba(var(--color-bg-primary-rgb, 13, 17, 23), 0.9);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transition: background-color 0.3s ease;
}

/* Adjust main content padding for sticky header */
main {
    padding-top: 0px; /* Height of the header */
}

/* --- NEW: Smooth Modal Animations --- */
.mfp-zoom-in .mfp-content {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.3s ease-in-out;
}
.mfp-zoom-in.mfp-ready .mfp-content {
    opacity: 1;
    transform: scale(1);
}
.mfp-zoom-in.mfp-removing .mfp-content {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.3s ease-out;
}
.mfp-zoom-in.mfp-bg {
    opacity: 0;
    transition: opacity 0.3s ease-out;
}
.mfp-zoom-in.mfp-ready.mfp-bg {
    opacity: 1;
}
.mfp-zoom-in.mfp-removing.mfp-bg {
    opacity: 0;
    transition: opacity 0.3s ease-out;
}

#loader-modal-container {
    background: rgba(var(--color-bg-secondary-rgb), 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(var(--color-border-rgb), 0.5);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

#loader-modal-container.is-hiding {
    opacity: 0;
    transition: opacity 0.4s ease-in-out;
}

#loader-modal-container:not(.is-hiding) {
    opacity: 1;
    transition: opacity 0.4s ease-in-out;
}

.mfp-close {
    right: 0px !important;
    top: 0px !important;
    padding: 10px !important;
    background-color: transparent !important;
    color: var(--color-text-secondary) !important;
    font-size: 30px !important;
    line-height: 1 !important;
    opacity: 0.7 !important;
    transition: opacity 0.2s ease-in-out !important;
}
.mfp-close:hover {
    opacity: 1 !important;
}
@media (min-width: 768px) {
    .mfp-close {
        right: -30px !important;
        top: -30px !important;
        color: var(--color-text-primary) !important;
        opacity: 1 !important;
    }
}
/* --- NEW: Skeleton Loader for Images --- */
.skeleton {
    background-color: var(--color-border);
    position: relative;
    overflow: hidden;
}
.skeleton::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
    100% {
        transform: translateX(100%);
    }
}
/* --- NEW: Staggered Card Load-in Animation --- */
.app-card-trigger {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out, background-color 0.3s ease;
}
.app-card-trigger.card-loaded {
    opacity: 1;
    transform: translateY(0);
}

/* --- NEW: Download Checklist Styles --- */
.download-checklist {
    transition: opacity 0.4s ease-in-out;
}
.download-checklist.fade-out {
    opacity: 0;
}
.checklist-item {
    transition: color 0.4s ease-in-out;
    overflow: hidden;
    position: relative;
}
.checklist-item .step-icon {
    transition: color 0.4s ease-in-out, transform 0.4s ease-in-out;
}
.checklist-item .checkmark {
    position: absolute;
    right: 0;
    opacity: 0;
    transform: scale(0.5);
    stroke-dasharray: 24;
    stroke-dashoffset: 24;
    transition: opacity 0.3s 0.3s ease-out, transform 0.3s 0.3s ease-out, stroke-dashoffset 0.6s ease-out;
}
.checklist-item.completed {
    color: var(--color-success);
}
.checklist-item.completed .step-icon {
    color: var(--color-success-dark);
    transform: scale(1.1);
}
.checklist-item.completed .checkmark {
    opacity: 1;
    stroke-dashoffset: 0;
    transform: scale(1);
}
.checklist-item.completed .step-icon {
    animation: icon-complete-pop 0.3s forwards;
}
@keyframes icon-complete-pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* --- NEW: Interactive KPIs --- */
.kpi strong {
    transition: color 0.3s ease;
}
.kpi:hover strong {
    color: var(--color-accent);
}