:root {
    --primary: #4f46e5;
    --primary-soft: #818cf8;
    --accent: #0f172a;
    --text-dark: #0f172a;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border: #e2e8f0;
    --border-hover: #cbd5e1;
    --success: #10b981;
    --success-bg: #ecfdf5;
    --error: #ef4444;
    --error-bg: #fef2f2;
    --info: #3b82f6;
    --info-bg: #eff6ff;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-white);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.serif {
    font-family: 'Playfair Display', serif;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

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

.fade-in {
    opacity: 0;
}

.fade-in.visible {
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.container {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 0;
}

/* UI Elements */
.card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-weight: 500;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    font-size: 0.95rem;
    border: 1px solid transparent;
    letter-spacing: -0.01em;
    gap: 0.6rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-soft);
    transform: translateY(-1px);
    box-shadow: 0 8px 20px -8px rgba(0, 0, 0, 0.4);
}

.btn-secondary {
    background-color: var(--bg-white);
    color: var(--text-main);
    border-color: var(--border);
}

.btn-secondary:hover {
    background-color: var(--bg-light);
    border-color: var(--border-hover);
}

.btn-icon {
    background: none;
    border: 1px solid var(--border);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-muted);
}

.btn-icon:hover {
    background: var(--bg-light);
    border-color: var(--border-hover);
    color: var(--text-main);
}

.btn-icon.danger:hover {
    background: var(--error-bg);
    border-color: #fecdd3;
    color: var(--error);
}

/* Typography */
h1 {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.04em;
}

h2 {
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Forms */
.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--text-dark);
    margin-bottom: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

input,
select,
textarea {
    width: 100%;
    padding: 0.9rem 1.1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg-white);
    color: var(--text-main);
    outline: none;
    transition: all 0.2s;
}

input:focus,
select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.03);
}

/* Components */
.badge {
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
}

.badge.success {
    background: var(--success-bg);
    color: var(--success);
}

.badge.error {
    background: var(--error-bg);
    color: var(--error);
}

.badge.info {
    background: var(--info-bg);
    color: var(--info);
}

.badge.secondary {
    background: var(--bg-light);
    color: var(--text-muted);
}

.badge.warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.drop-zone {
    border: 2px dashed var(--border);
    background: var(--bg-light);
    padding: 4rem 2rem;
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.drop-zone:hover {
    border-color: var(--primary);
    background: #fff;
    transform: scale(1.01);
}

/* Utils */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-muted {
    color: var(--text-muted);
}

.loader {
    width: 20px;
    height: 20px;
    border: 2px solid #e2e8f0;
    border-bottom-color: var(--primary);
    border-radius: 50%;
    animation: rotation 0.8s linear infinite;
}

@keyframes rotation {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2.75rem;
    }

    h2 {
        font-size: 2rem;
    }

    .container {
        width: 92%;
    }
}