:root {
    --bg-color: #050505;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --accent-purple: #7b2cbf;
    --accent-blue: #3a86ff;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Background Gradients */
.background-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    width: 50vw;
    height: 50vw;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.25;
    animation: float 20s infinite alternate cubic-bezier(0.5, 0, 0.5, 1);
}

.orb-1 {
    top: -10%;
    left: -10%;
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
}

.orb-2 {
    bottom: -10%;
    right: -10%;
    background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(5%, 10%) scale(1.1); }
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    animation: slideDown 0.8s ease-out;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

h1 span {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Glassmorphism Generic */
.search-glass, .results-glass, .error-glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Search Bar */
.search-glass {
    padding: 0.5rem;
    margin-bottom: 3rem;
    transition: var(--transition);
}

.search-glass:focus-within {
    border-color: rgba(255,255,255,0.2);
    box-shadow: 0 8px 32px 0 rgba(123, 44, 191, 0.2);
}

#research-form {
    display: flex;
    align-items: center;
}

#query-input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 1rem 1.5rem;
    color: white;
    font-size: 1.1rem;
    font-family: inherit;
    outline: none;
}

#query-input::placeholder {
    color: rgba(255,255,255,0.3);
}

#search-btn {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    color: white;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

#search-btn svg {
    width: 20px;
    height: 20px;
}

#search-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(58, 134, 255, 0.5);
}

#search-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Loading State */
#loading-container {
    text-align: center;
    padding: 3rem 0;
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255,255,255,0.1);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 2rem auto;
}

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

.loading-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.step {
    color: var(--text-secondary);
    font-size: 1rem;
    opacity: 0.4;
    transition: var(--transition);
}

.step.active {
    color: var(--text-primary);
    opacity: 1;
    font-weight: 600;
    transform: scale(1.05);
}

/* Results Area */
.results-glass {
    padding: 2.5rem;
    animation: slideUp 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.error-glass {
    padding: 2rem;
    border-color: rgba(255, 50, 50, 0.3);
    background: rgba(255, 50, 50, 0.05);
    text-align: center;
}

.error-glass h3 {
    color: #ff5e5e;
    margin-bottom: 0.5rem;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Markdown Rendering Styles */
.markdown-body h1 { 
    font-size: 2.2rem; 
    border-bottom: 1px solid var(--glass-border); 
    padding-bottom: 0.8rem; 
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.markdown-body h2 { font-size: 1.5rem; color: #e0e0e0; margin-top: 2rem; margin-bottom: 1rem;}
.markdown-body p { margin-bottom: 1rem; color: #cccccc; line-height: 1.8;}
.markdown-body ul, .markdown-body ol { margin-bottom: 1.5rem; padding-left: 1.5rem; color: #cccccc; }
.markdown-body li { margin-bottom: 0.6rem; }
.markdown-body a { color: var(--accent-blue); text-decoration: none; }
.markdown-body a:hover { text-decoration: underline; }
.markdown-body strong { color: #ffffff; }
.markdown-body blockquote { 
    border-left: 4px solid var(--accent-purple); 
    padding-left: 1rem; 
    color: var(--text-secondary); 
    background: rgba(255,255,255,0.02);
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.hidden {
    display: none !important;
}