/* AbstractiFy Academic Editorial CSS stylesheet */

:root {
    --primary: #002147;          /* Oxford Blue */
    --background: #FDFAF6;       /* Ivory Paper */
    --surface: #FDFAF6;
    --on-surface: #1A1A1A;       /* Charcoal Ink */
    --outline: #D1CDC7;          /* Elegant rule color */
    --secondary: #4A4A4A;        /* Muted Gray */
    --success: #E8F0F2;
    --error: #F2E8E8;
    
    --font-serif: 'Playfair Display', Georgia, Cambria, "Times New Roman", Times, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', Consolas, Monaco, monospace;
}

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

body {
    background-color: var(--background);
    color: var(--on-surface);
    font-family: 'Times New Roman', Times, serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Paper Texture overlay using SVG fractal noise */
.paper-texture {
    position: relative;
}
.paper-texture::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    opacity: 0.025;
    pointer-events: none;
    z-index: 999;
    background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.8" numOctaves="4" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
}

/* Editorial Rules */
.editorial-rule {
    border-color: var(--outline) !important;
}
.vertical-rule {
    border-left: 1px solid var(--outline);
}

/* Fonts and Typography */
.serif-heading {
    font-family: var(--font-serif);
}
.cursive-logo {
    font-family: var(--font-serif);
    font-style: italic;
}

/* Oxford Blue Button */
.oxford-btn {
    background-color: var(--primary);
    color: var(--background);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid var(--primary);
}
.oxford-btn:hover {
    background-color: #00152e;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 33, 71, 0.15);
}

/* Folio Card */
.folio-card {
    border: 1px solid var(--outline);
    background-color: var(--background);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.folio-card:hover {
    border-color: var(--primary);
    background-color: rgba(0, 33, 71, 0.015);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 33, 71, 0.05);
}

/* Solid Fill for supports consensus */
.solid-texture-fill {
    background-color: var(--primary) !important;
}

/* Inputs and Forms */
input[type="text"], input[type="password"], select {
    background-color: transparent;
    border: none;
    border-bottom: 1px solid var(--outline);
    transition: border-color 0.3s ease;
}
input[type="text"]:focus, input[type="password"]:focus, select:focus {
    outline: none;
    border-bottom-color: var(--primary) !important;
    box-shadow: none !important;
}

/* Modal styling */
.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(26, 26, 26, 0.3);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}
.modal.hidden {
    display: none !important;
}
.modal-content {
    background-color: var(--background);
    width: 450px;
    max-height: 90vh;
    animation: modal-slide 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 24px;
}
@keyframes modal-slide {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
}
.modal-header h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-style: italic;
    color: var(--primary);
}
.close-btn {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--secondary);
    cursor: pointer;
}
.close-btn:hover {
    color: var(--primary);
}
.form-group label {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--secondary);
}
.form-group input, .form-group select {
    width: 100%;
    padding: 8px 0;
    font-size: 14px;
    color: var(--on-surface);
}
.help-text {
    font-size: 11px;
    color: var(--secondary);
    opacity: 0.8;
    line-height: 1.4;
}

/* Scroll Hide */
.scroll-hide::-webkit-scrollbar {
    display: none;
}
.scroll-hide {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.02);
}
::-webkit-scrollbar-thumb {
    background: rgba(0, 33, 71, 0.15);
    border-radius: 2px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 33, 71, 0.3);
}

/* Spinner & Loader */
.loader-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
}
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid rgba(0, 33, 71, 0.05);
    border-top: 2px solid var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Equation Box interactive list */
.formula-item {
    transition: all 0.2s ease;
}
.formula-item.selected {
    background-color: var(--primary);
    color: var(--background);
    border-color: var(--primary);
}

/* Vis-network layout adjustments */
.vis-network {
    outline: none;
}

/* View transitions */
#landing-view, #app-view {
    transition: opacity 0.5s ease-in-out;
}
.hidden {
    display: none !important;
}

/* Custom Chat Bubble separation */
.message {
    padding: 12px;
    font-size: 13px;
    line-height: 1.5;
}
.user-message {
    font-family: var(--font-mono);
    font-size: 10px;
    background-color: rgba(253, 250, 246, 0.15);
    border: 1px solid rgba(253, 250, 246, 0.25);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.ai-message {
    font-family: var(--font-sans);
    font-style: italic;
    border-left: 2px solid rgba(253, 250, 246, 0.4);
    opacity: 0.95;
    padding-left: 16px;
}
.system-message {
    font-family: var(--font-mono);
    font-size: 10px;
    opacity: 0.7;
    text-transform: uppercase;
}