:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #64748b;
    --background: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --success: #10b981;
    --danger: #ef4444;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.6;
    padding: 2rem;
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

/* Login Screen Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.login-card {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 400px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.login-header {
    margin-bottom: 2rem;
}

.login-header i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

/* Header & User Controls */
header {
    margin-bottom: 2rem;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.header-top h1 {
    font-size: 2rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#user-display {
    font-weight: 500;
    color: var(--text-main);
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s;
}

.btn-small:hover {
    border-color: var(--danger);
    color: var(--danger);
}

header p {
    color: var(--text-muted);
    text-align: left;
    /* Changed from center to left to match new layout */
}

/* Dashboard Summary */
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.summary-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: transform 0.2s;
}

.summary-card:hover {
    transform: translateY(-2px);
}

.icon-box {
    width: 60px;
    height: 60px;
    background: #e0e7ff;
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.summary-card:nth-child(2) .icon-box {
    background: #dcfce7;
    color: var(--success);
}

.info h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.info p {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-main);
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 2rem;
}

@media (max-width: 850px) {
    .content-grid {
        grid-template-columns: 1fr;
    }

    .header-top {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    header p {
        text-align: center;
    }
}

/* Form Styles */
.add-entry h2,
.history h2 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.btn-primary {
    width: 100%;
    padding: 0.8rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

.btn-secondary {
    width: 100%;
    padding: 0.5rem;
    margin-top: 0.5rem;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 0.9rem;
}

.btn-secondary:hover {
    text-decoration: underline;
}

/* Table Styles */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.btn-danger-text {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
}

.btn-danger-text:hover {
    text-decoration: underline;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 1rem;
    background: #f1f5f9;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9rem;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: #fafafa;
}

.delete-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
}

.delete-btn:hover {
    color: var(--danger);
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    display: none;
    /* JS ile kontrol edilecek */
}

.empty-state i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Utilities */
.text-right {
    text-align: right;
}

.font-bold {
    font-weight: 700;
}