/* MEXC Futures Auto Trader - Styles */
:root {
    --primary: #00d4aa;
    --primary-dark: #00b894;
    --secondary: #6c5ce7;
    --dark: #1a1a2e;
    --darker: #16213e;
    --light: #f8f9fa;
    --gray: #6c757d;
    --success: #00b894;
    --warning: #fdcb6e;
    --danger: #ff7675;
    --card-bg: #1e1e2f;
    --border: #2d2d44;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--dark);
    color: var(--light);
    line-height: 1.6;
    min-height: 100vh;
}

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 1rem; }
.header {
    background: var(--darker);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav { display: flex; gap: 1rem; align-items: center; }
.nav a {
    color: var(--light);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: background 0.2s;
}
.nav a:hover, .nav a.active { background: var(--primary); color: var(--dark); }

/* Auth Pages */
.auth-container {
    max-width: 400px;
    margin: 3rem auto;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.auth-form h2 { margin-bottom: 1.5rem; text-align: center; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.5rem; color: var(--gray); }
.form-group input {
    width: 100%;
    padding: 0.75rem;
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--light);
    font-size: 1rem;
}
.form-group input:focus { outline: none; border-color: var(--primary); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: var(--dark);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}
.btn:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-secondary { background: var(--secondary); }
.btn-danger { background: var(--danger); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--light); }

/* Dashboard */
.dashboard { display: grid; grid-template-columns: 240px 1fr; gap: 1rem; min-height: calc(100vh - 70px); }

.sidebar {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1rem;
    border: 1px solid var(--border);
    height: fit-content;
    position: sticky;
    top: 90px;
}

.sidebar nav { display: flex; flex-direction: column; gap: 0.25rem; }
.sidebar a {
    padding: 0.75rem 1rem;
    color: var(--light);
    text-decoration: none;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: background 0.2s;
}
.sidebar a:hover, .sidebar a.active { background: var(--primary); color: var(--dark); }

.main-content { padding: 1rem; }

/* Tabs */
.tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
.tab-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    color: var(--gray);
    cursor: pointer;
    border-radius: 8px 8px 0 0;
    transition: all 0.2s;
}
.tab-btn.active { background: var(--primary); color: var(--dark); font-weight: 600; }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid var(--border);
    margin-bottom: 1rem;
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}
.card-title { font-size: 1.25rem; font-weight: 600; }

/* Tables */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.table th { color: var(--gray); font-weight: 600; font-size: 0.875rem; }
.table tr:hover { background: rgba(255,255,255,0.02); }

/* Status Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-waiting { background: var(--warning); color: var(--dark); }
.badge-open { background: var(--success); color: var(--dark); }
.badge-closed { background: var(--gray); }
.badge-error { background: var(--danger); }
.badge-long { background: rgba(0, 212, 170, 0.2); color: var(--primary); }
.badge-short { background: rgba(255, 118, 117, 0.2); color: var(--danger); }

/* PnL Colors */
.pnl-positive { color: var(--success); }
.pnl-negative { color: var(--danger); }

/* Grid Layouts */
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 768px) {
    .dashboard { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* Forms in Cards */
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 1rem; }

/* Loading */
.loading {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.toast {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    animation: slideIn 0.3s ease;
}
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--success); }
@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 600px) {
    .header { padding: 1rem; }
    .nav { gap: 0.5rem; }
    .nav a { padding: 0.5rem; font-size: 0.875rem; }
    .container { padding: 0.5rem; }
}