/* StockTrack Master Stylesheet */

:root {
    /* -- Colors -- */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    
    /* Backgrounds */
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --header-bg: transparent;

    /* Text */
    --text-main: #0f172a;
    --text-muted: #64748b;
    
    /* Borders */
    --border-color: #e2e8f0;

    /* Financial Indicators */
    --success-color: #10b981;
    --success-bg: #d1fae5;
    --danger-color: #ef4444;
    --danger-bg: #fee2e2;

    /* Metrics */
    --radius-sm: 6px;
    --radius-md: 12px;
    --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);
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

/* -- Dark Mode -- */
[data-theme="dark"] {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --input-bg: #0f172a;
    --header-bg: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --success-bg: rgba(16, 185, 129, 0.2);
    --danger-bg: rgba(239, 68, 68, 0.2);
}

/* -- Base -- */
* { box-sizing: border-box; outline: none; margin: 0; padding: 0; }
body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}
a { text-decoration: none; color: inherit; transition: color 0.2s; }

/* -- Layout -- */
.container { max-width: 1100px; margin: 0 auto; padding: 40px 20px; }

/* -- Header -- */
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; padding-bottom: 20px; }
header h1 { font-size: 1.75rem; font-weight: 800; color: var(--text-main); letter-spacing: -0.025em; }
.nav-controls { display: flex; align-items: center; gap: 20px; }
.nav-link { font-weight: 500; font-size: 0.95rem; color: var(--text-muted); }
.nav-link:hover { color: var(--primary-color); }
.btn-logout { font-size: 0.95rem; color: var(--text-muted); font-weight: 500; }
.btn-logout:hover { color: var(--danger-color); }

/* Theme Toggle */
.theme-toggle {
    background: transparent; border: 1px solid var(--border-color); color: var(--text-main);
    width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center;
    justify-content: center; cursor: pointer; font-size: 1.1rem; transition: all 0.2s;
}
.theme-toggle:hover { background-color: var(--border-color); transform: rotate(15deg); }

/* -- Dashboard -- */
.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-bottom: 30px; }
.card {
    background: var(--card-bg); padding: 24px; border-radius: var(--radius-md);
    border: 1px solid var(--border-color); box-shadow: var(--shadow-sm); transition: transform 0.2s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card h3 { color: var(--text-muted); font-size: 0.8rem; text-transform: uppercase; font-weight: 600; margin-bottom: 8px; }
.card h2 { color: var(--text-main); font-size: 1.8rem; font-weight: 700; }

/* Forms */
.form-card {
    background: var(--card-bg); padding: 24px; border-radius: var(--radius-md);
    border: 1px solid var(--border-color); box-shadow: var(--shadow-sm); margin-bottom: 30px;
}
.form-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 15px; color: var(--text-main); }
.stock-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 15px; align-items: end; }

input, select {
    width: 100%; padding: 10px 12px; background: var(--input-bg); color: var(--text-main);
    border: 1px solid var(--border-color); border-radius: var(--radius-sm); font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus, select:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
button {
    background-color: var(--primary-color); color: white; border: none; padding: 10px 18px;
    border-radius: var(--radius-sm); font-weight: 600; cursor: pointer; font-size: 0.95rem;
    transition: background-color 0.2s;
}
button:hover { background-color: var(--primary-hover); }

/* Tables */
.table-container {
    background: var(--card-bg); border-radius: var(--radius-md); border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm); overflow: hidden;
}
.table-header-flex { padding: 15px 24px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); }
table { width: 100%; border-collapse: collapse; }
th {
    background-color: var(--bg-color); text-align: left; padding: 12px 24px; font-size: 0.75rem;
    text-transform: uppercase; color: var(--text-muted); font-weight: 600;
}
td { padding: 16px 24px; border-bottom: 1px solid var(--border-color); color: var(--text-main); font-size: 0.95rem; }
.badge {
    background-color: var(--bg-color); border: 1px solid var(--border-color); color: var(--text-main);
    padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600;
}
.pnl-pos { color: var(--success-color); font-weight: 600; }
.pnl-neg { color: var(--danger-color); font-weight: 600; }
.btn-icon { background: transparent; color: var(--text-muted); padding: 5px; font-size: 1.1rem; }
.btn-icon:hover { background: transparent; color: var(--danger-color); }

/* -- Auth: Split Screen (Login) -- */
.split-screen { display: flex; min-height: 100vh; width: 100%; }
.split-left {
    flex: 1; display: flex; flex-direction: column; justify-content: center;
    padding: 40px 80px; background: var(--card-bg); position: relative; max-width: 600px; width: 100%;
}
.split-right {
    flex: 1.5; background-image: url('https://images.unsplash.com/photo-1611974765270-ca1258634369?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
    background-size: cover; background-position: center; position: relative; display: flex; align-items: flex-end; padding: 60px;
}
.split-right::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0.2));
}
.quote-box { position: relative; color: white; z-index: 2; max-width: 600px; }
.quote-text { font-size: 1.5rem; font-weight: 500; line-height: 1.4; margin-bottom: 20px; }

/* -- Auth: Centered (Register) -- */
.auth-wrapper {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 20px; background-color: var(--bg-color);
}
.auth-card {
    background: var(--card-bg); width: 100%; max-width: 400px; padding: 40px;
    border-radius: var(--radius-md); box-shadow: var(--shadow-md); text-align: center; border: 1px solid var(--border-color);
}
.auth-header { margin-bottom: 30px; }
.brand-logo { font-size: 2.5rem; margin-bottom: 10px; display: inline-block; }
.auth-title { font-size: 1.8rem; font-weight: 700; margin-bottom: 10px; color: var(--text-main); }
.auth-subtitle { color: var(--text-muted); font-size: 1rem; }
.auth-form { text-align: left; }
.auth-form label { display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 6px; color: var(--text-main); }
.auth-form input { margin-bottom: 20px; padding: 12px; }
.btn-submit { width: 100%; padding: 12px; font-size: 1rem; margin-top: 10px; }
.auth-footer { margin-top: 25px; text-align: center; color: var(--text-muted); font-size: 0.9rem; }
.theme-toggle-fixed { position: absolute; top: 30px; right: 30px; z-index: 10; }

@media (max-width: 900px) {
    .split-right { display: none; }
    .split-left { max-width: 100%; padding: 40px 20px; }
}