:root {
    --bg-color: #0b0f19;
    --card-bg: rgba(20, 25, 40, 0.6);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #8b5cf6;
    --primary-hover: #7c3aed;
    --secondary: #ec4899;
    --accent: #06b6d4;
    --input-bg: rgba(15, 23, 42, 0.6);
    --input-border: rgba(255, 255, 255, 0.1);
    --input-focus: #8b5cf6;
    --error: #ef4444;
    --success: #10b981;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

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

.blob {
    position: absolute;
    filter: blur(80px);
    opacity: 0.5;
    border-radius: 50%;
    animation: float 20s infinite ease-in-out alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    animation-delay: -10s;
}

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

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInDown 0.8s ease-out;
}

.logo-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 25px -5px rgba(139, 92, 246, 0.5);
}

.sparkle {
    font-size: 32px;
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #fff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.025em;
}

.header p {
    font-size: 1.2rem;
    color: var(--text-muted);
}

/* Main Content Grid */
.main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 992px) {
    .main-content {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

/* Glass Card */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 0.8s ease-out;
}

.glass-card h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.row-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .row-group {
        grid-template-columns: 1fr 1fr;
    }
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.3s;
}

input, textarea, select {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    padding: 0.875rem 1rem;
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
    outline: none;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

input:focus, textarea:focus, select:focus {
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
    background: rgba(15, 23, 42, 0.8);
}

.form-group:focus-within label {
    color: var(--primary);
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: translateY(-70%) rotate(45deg);
    pointer-events: none;
}

select {
    appearance: none;
    cursor: pointer;
}

/* Button Styles */
.primary-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 12px;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
    position: relative;
    overflow: hidden;
}

.primary-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 1;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px rgba(236, 72, 153, 0.6);
}

.primary-btn:hover::before {
    opacity: 1;
}

.primary-btn:active {
    transform: translateY(0);
}

.btn-text, .spinner {
    position: relative;
    z-index: 2;
}

/* Spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

.spinner.hidden {
    display: none;
}

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

/* Result Section */
.result-section {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.result-header h2 {
    margin-bottom: 0;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--input-border);
    color: var(--text-muted);
    width: 40px;
    height: 40px;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s;
    position: relative;
}

.icon-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border-color: rgba(255, 255, 255, 0.2);
}

.icon-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.copy-tooltip {
    position: absolute;
    top: -40px;
    background: var(--text-main);
    color: var(--bg-color);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s;
    pointer-events: none;
}

.copy-tooltip.show {
    opacity: 1;
    transform: translateY(0);
}

.result-content-wrapper {
    flex-grow: 1;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 16px;
    padding: 1.5rem;
    min-height: 400px;
    position: relative;
    overflow-y: auto;
}

.empty-state {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--text-muted);
    width: 100%;
    padding: 2rem;
}

.empty-state svg {
    margin-bottom: 1rem;
    opacity: 0.5;
}

.markdown-body {
    color: var(--text-main);
    line-height: 1.8;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

.markdown-body p {
    margin-bottom: 1rem;
}

.markdown-body ul, .markdown-body ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.markdown-body strong {
    color: #fff;
    font-weight: 600;
}

.hidden {
    display: none !important;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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