/* TEMEL AYARLAR & CSS DEĞİŞKENLERİ */
:root {
    --bg-color: #121212;
    --card-bg: #1E1E1E;
    --text-primary: #FFFFFF;
    --text-secondary: #AAAAAA;
    --primary-color: #007BFF;
    --primary-hover: #0056b3;
    --accent-blue: #3A8DFF;
    --accent-green: #34C759;
    --accent-orange: #FF9500;
    --accent-red: #FF3B30;
    --border-color: #2C2C2E;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* EKRAN YÖNETİMİ */
.screen {
    display: none;
    min-height: 100vh;
    animation: fadeIn 0.3s ease-in-out;
}

.screen.active {
    display: block;
}

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

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

/* GİRİŞ EKRANI */
#login-screen {
    background: linear-gradient(135deg, #121212 0%, #0a0a0a 100%);
    display: none;
    align-items: center;
    justify-content: center;
}

#login-screen.active {
    display: flex;
}

.login-container {
    width: 90%;
    max-width: 400px;
}

.logo {
    text-align: center;
    margin-bottom: 40px;
}

.logo i {
    font-size: 56px;
    color: var(--primary-color);
    margin-bottom: 10px;
    display: block;
}

.logo h1 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo h1 span {
    font-weight: 300;
    color: var(--primary-color);
}

.login-box {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.login-box h2 {
    font-size: 22px;
    margin-bottom: 8px;
}

.login-box p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 25px;
}

.input-group {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    padding: 0 15px;
    margin-bottom: 20px;
    transition: 0.3s;
}

.input-group:focus-within {
    border-color: var(--primary-color);
    background-color: rgba(255, 255, 255, 0.1);
}

.input-group i {
    color: var(--text-secondary);
    font-size: 20px;
}

.input-group input {
    background: transparent;
    border: node;
    border: none;
    color: white;
    padding: 15px;
    width: 100%;
    font-size: 16px;
    outline: none;
}

.error-msg {
    color: var(--accent-red);
    font-size: 14px;
    text-align: center;
    margin-top: 15px;
    font-weight: 500;
}

/* BUTONLAR */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 16px;
    width: 100%;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.btn-primary:active {
    transform: scale(0.98);
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 12px;
    width: 100%;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    margin-top: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: 0.2s;
}

.btn-secondary:active {
    background-color: rgba(255, 255, 255, 0.1);
}

/* DASHBOARD HEADER */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 20px 10px 20px;
    margin-bottom: 20px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.4);
}

.header-info p {
    color: var(--text-secondary);
    font-size: 12px;
    margin-bottom: 2px;
}

.header-info h2 {
    font-size: 18px;
    font-weight: 700;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

/* ANA KARTLAR */
main {
    padding: 0 20px;
    padding-bottom: 60px;
}

.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    margin-bottom: 15px;
}

.section-title h3 {
    font-size: 14px;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.badge {
    background-color: rgba(255, 255, 255, 0.1);
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 20px;
    font-weight: 500;
}

.badge.bg-red {
    background-color: rgba(255, 59, 48, 0.15);
    color: var(--accent-red);
}

.main-card {
    background: linear-gradient(to bottom right, #252525, #1A1A1A);
    border: 1px solid var(--border-color);
    padding: 25px;
    border-radius: 20px;
    text-align: center;
    margin-bottom: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.main-card p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 10px;
}

.main-card h1 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 15px;
    background: linear-gradient(90deg, #fff, #bbb);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.trend {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: rgba(52, 199, 89, 0.1);
    color: var(--accent-green);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.trend.down {
    background-color: rgba(255, 59, 48, 0.1);
    color: var(--accent-red);
}

.trend.down i {
    transform: rotate(180deg);
}

/* STATS GRID */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.stats-grid .stat-box:first-child {
    grid-column: span 2;
}

/* Satış Sayısı geniş olsun */

.stat-box {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 15px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
}

.bg-blue {
    background-color: var(--accent-blue);
}

.bg-green {
    background-color: var(--accent-green);
}

.bg-orange {
    background-color: var(--accent-orange);
}

.stat-details p {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 3px;
}

.stat-details h3 {
    font-size: 18px;
    font-weight: 700;
}

/* STOK LİSTESİ */
.stocks-section {
    margin-top: 30px;
}

.stocks-list {
    background-color: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.stock-item {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stock-item:last-child {
    border-bottom: none;
}

.stock-info h4 {
    font-size: 14px;
    margin-bottom: 4px;
    font-weight: 600;
}

.stock-info p {
    font-size: 12px;
    color: var(--text-secondary);
}

.stock-amount {
    background-color: rgba(255, 59, 48, 0.1);
    color: var(--accent-red);
    padding: 5px 10px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 14px;
}

.empty-state {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 48px;
    color: var(--border-color);
    margin-bottom: 10px;
    display: block;
}