/* Modern Minimalist Base - Inspired by Linear/Vercel */

:root {
    --bg-body: #FAFAFA;
    --bg-surface: #FFFFFF;
    --bg-surface-hover: #F5F5F5;
    
    --text-primary: #111111;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    
    --border-light: #EAEAEA;
    --border-hover: #D4D4D4;
    
    --primary: #111111;
    --primary-fg: #FFFFFF;
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 15px;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: 600;
    letter-spacing: -0.02em;
}

button {
    font-family: inherit;
}

/* Utilities */
.page-content {
    padding: 48px 64px;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.settings-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.settings-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-light);
}

.settings-header h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    transition: background 0.2s;
}

.settings-row:last-child {
    border-bottom: none;
}

.settings-row:hover {
    background: #FCFCFC;
}

/* Buttons */
.btn-primary-lg {
    background: var(--primary);
    color: var(--primary-fg);
    border: none;
    padding: 0 32px;
    height: 48px;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.btn-primary-lg:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

.btn-danger {
    background: #FFF;
    border: 1px solid #FF4444;
    color: #FF4444;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.btn-danger:hover {
    background: #FFF0F0;
}

/* Inputs */
input[type="text"], input[type="tel"], textarea {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 1rem;
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

input:focus, textarea:focus {
    border-color: #999;
    box-shadow: 0 0 0 3px rgba(0,0,0,0.05);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(0,0,0,0.2);
}