/* ===== GENEL RESET & TEMEL ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6C63FF;
    --primary-dark: #5A52D5;
    --gelir: #00C853;
    --gelir-bg: #E8F5E9;
    --gelir-dark: #00A844;
    --gider: #FF5252;
    --gider-bg: #FFEBEE;
    --gider-dark: #D32F2F;
    --bg: #F0F2F5;
    --card-bg: #FFFFFF;
    --text: #2D3436;
    --text-light: #636E72;
    --border: #E0E0E0;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ===== NAVBAR ===== */
.navbar {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 0.8rem 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(108,99,255,0.3);
}

.navbar-brand {
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    font-size: 1.4rem;
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.user-name {
    font-size: 0.85rem;
    opacity: 0.9;
}

/* ===== CONTAINER ===== */
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 1rem;
}

/* ===== ÖZET KARTLARI ===== */
.summary-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    transition: transform 0.2s;
}

.card:active {
    transform: scale(0.98);
}

.card-gelir {
    border-left: 4px solid var(--gelir);
}

.card-gider {
    border-left: 4px solid var(--gider);
}

.card-bakiye {
    grid-column: 1 / -1;
    border-left: 4px solid var(--primary);
}

.card-bakiye.positive {
    border-left-color: var(--gelir);
}

.card-bakiye.negative {
    border-left-color: var(--gider);
}

.card-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.card-gelir .card-icon {
    background: var(--gelir-bg);
    color: var(--gelir);
}

.card-gider .card-icon {
    background: var(--gider-bg);
    color: var(--gider);
}

.card-bakiye .card-icon {
    background: #EDE7F6;
    color: var(--primary);
}

.card-info {
    display: flex;
    flex-direction: column;
}

.card-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.card-amount {
    font-size: 1.2rem;
    font-weight: 700;
}

.card-gelir .card-amount { color: var(--gelir-dark); }
.card-gider .card-amount { color: var(--gider-dark); }
.card-bakiye.positive .card-amount { color: var(--gelir-dark); }
.card-bakiye.negative .card-amount { color: var(--gider-dark); }

/* ===== TOOLBAR ===== */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.filter-form {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    flex: 1;
}

.filter-form .form-control {
    padding: 0.4rem 0.5rem;
    font-size: 0.8rem;
    min-width: 0;
    flex: 1;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 3px 10px rgba(108,99,255,0.3);
}

.btn-primary:active {
    transform: scale(0.96);
}

.btn-secondary {
    background: var(--border);
    color: var(--text);
}

.btn-danger {
    background: var(--gider);
    color: white;
}

.btn-outline {
    background: rgba(255,255,255,0.15);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.3rem;
    border-radius: 6px;
    color: var(--text-light);
    font-size: 0.85rem;
    transition: all 0.2s;
}

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

.btn-icon.btn-danger {
    background: none;
    color: var(--gider);
}

.btn-icon.btn-danger:hover {
    background: var(--gider-bg);
}

/* ===== FORM ===== */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 0.3rem;
}

.form-group label i {
    width: 18px;
    text-align: center;
}

.form-control {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text);
    background: var(--card-bg);
    transition: border-color 0.2s;
    -webkit-appearance: none;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108,99,255,0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 70px;
}

/* ===== TYPE TOGGLE ===== */
.type-toggle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.type-option {
    cursor: pointer;
}

.type-option input {
    display: none;
}

.type-option span {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.7rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.gelir-option input:checked + span {
    background: var(--gelir-bg);
    border-color: var(--gelir);
    color: var(--gelir-dark);
}

.gider-option input:checked + span {
    background: var(--gider-bg);
    border-color: var(--gider);
    color: var(--gider-dark);
}

/* ===== İŞLEM LİSTESİ ===== */
.transaction-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.transaction-item {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 0.8rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    transition: transform 0.15s;
    gap: 0.5rem;
}

.transaction-item:active {
    transform: scale(0.99);
}

.transaction-item.gelir {
    border-left: 3px solid var(--gelir);
}

.transaction-item.gider {
    border-left: 3px solid var(--gider);
}

.transaction-left {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    min-width: 0;
    flex: 1;
}

.transaction-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.gelir .transaction-icon {
    background: var(--gelir-bg);
    color: var(--gelir);
}

.gider .transaction-icon {
    background: var(--gider-bg);
    color: var(--gider);
}

.transaction-details {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.transaction-category {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.transaction-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

.transaction-note {
    font-size: 0.75rem;
    color: var(--text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}

.transaction-note i {
    color: #FFC107;
    margin-right: 2px;
}

.transaction-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.transaction-amount {
    font-weight: 700;
    font-size: 0.95rem;
    white-space: nowrap;
}

.transaction-amount.gelir { color: var(--gelir-dark); }
.transaction-amount.gider { color: var(--gider-dark); }

.transaction-actions {
    display: flex;
    gap: 0.2rem;
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-state p {
    font-size: 0.95rem;
}

/* ===== MODAL ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--card-bg);
    border-radius: 20px 20px 0 0;
    padding: 1.5rem;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(100%);
    transition: transform 0.3s ease-out;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-sm {
    border-radius: var(--radius);
    max-width: 350px;
    margin: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-header h2 i {
    color: var(--primary);
}

.modal-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    padding: 0 1rem 1rem;
}

/* ===== ALERT ===== */
.alert {
    padding: 0.8rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-danger {
    background: var(--gider-bg);
    color: var(--gider-dark);
    border: 1px solid #FFCDD2;
}

/* ===== LOGIN ===== */
.login-body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 2rem 1.5rem;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.login-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.login-header h1 {
    font-size: 1.5rem;
    color: var(--text);
    margin-bottom: 0.3rem;
}

.login-header p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.login-footer {
    text-align: center;
    color: rgba(255,255,255,0.7);
    font-size: 0.8rem;
    margin-top: 1.5rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 400px) {
    .summary-cards {
        grid-template-columns: 1fr;
    }
    
    .card-bakiye {
        grid-column: auto;
    }

    .card-amount {
        font-size: 1rem;
    }

    .navbar {
        padding: 0.6rem 0.8rem;
    }

    .navbar-brand {
        font-size: 1rem;
    }

    .user-name {
        display: none;
    }

    .filter-form {
        width: 100%;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar .btn-primary {
        width: 100%;
    }

    .transaction-note {
        max-width: 120px;
    }
}

@media (min-width: 401px) and (max-width: 600px) {
    .transaction-note {
        max-width: 150px;
    }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

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

.transaction-item {
    animation: fadeIn 0.3s ease-out;
}

.card {
    animation: fadeIn 0.4s ease-out;
}

/* ===== SAFE AREA (iPhone notch) ===== */
@supports (padding: env(safe-area-inset-bottom)) {
    .navbar {
        padding-top: calc(0.8rem + env(safe-area-inset-top));
    }
    
    .container {
        padding-bottom: calc(1rem + env(safe-area-inset-bottom));
    }
}