:root {
    --primary-green: #10b981;
    --dark-green: #047857;
    --light-green: #ecfdf5;
    --black: #0f172a;
    --dark-gray: #1e293b;
    --gray: #64748b;
    --light-gray: #f8fafc;
    --border-color: #e2e8f0;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --transition: all 0.3s ease;
}

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

body {
    background-color: var(--light-gray);
    color: var(--black);
    min-height: 100vh;
}

.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--black);
    color: var(--white);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.logo-area {
    padding: 2rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.logo-area i {
    font-size: 1.8rem;
    color: var(--primary-green);
}

.logo-area h1 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

.main-nav {
    flex: 1;
    padding: 1.5rem 0;
    overflow-y: auto;
}

.main-nav ul {
    list-style: none;
}

.main-nav li a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.7rem;
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.main-nav li a:hover, .main-nav li.active a {
    background-color: rgba(255,255,255,0.05);
    color: var(--white);
}

.main-nav li.active a {
    border-left-color: var(--primary-green);
    color: var(--primary-green);
    background-color: rgba(16, 185, 129, 0.1);
}

.user-profile {
    padding: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.user-profile .info {
    display: flex;
    flex-direction: column;
}

.user-profile .name {
    font-weight: 600;
    font-size: 0.95rem;
}

.user-profile .role {
    font-size: 0.8rem;
    color: var(--gray);
}

/* Main Content */
.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.top-header {
    background-color: var(--white);
    padding: 1.5rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.top-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--dark-gray);
}

.actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    border: none;
    font-size: 0.9rem;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--gray);
}

.btn-outline:hover {
    background-color: var(--light-gray);
    color: var(--black);
    border-color: var(--gray);
}

.btn-primary {
    background-color: var(--black);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--dark-gray);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background-color: var(--primary-green);
    color: var(--white);
}

.btn-success:hover {
    background-color: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-large {
    width: 100%;
    padding: 1rem;
    font-size: 1.05rem;
    justify-content: center;
    margin-top: 1rem;
}

/* Dashboard Grid */
.dashboard-grid {
    padding: 2.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 1500px;
    margin: 0 auto;
    width: 100%;
}

.card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 2.2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.card h3 {
    font-size: 1.15rem;
    margin-bottom: 1.8rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--dark-gray);
    border-bottom: 1px solid var(--light-gray);
    padding-bottom: 1.2rem;
}

.card h3 i {
    color: var(--primary-green);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.6rem;
    color: var(--dark-gray);
    font-size: 0.9rem;
}

input[type="text"], select {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    transition: var(--transition);
    background-color: var(--light-gray);
    color: var(--black);
}

input[type="text"]:focus, select:focus {
    outline: none;
    border-color: var(--primary-green);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

small {
    display: block;
    margin-top: 0.5rem;
    color: var(--gray);
    font-size: 0.8rem;
}

/* Checkboxes */
.checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background-color: var(--light-gray);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.checkbox-container {
    display: block;
    position: relative;
    padding-left: 32px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    user-select: none;
    color: var(--dark-gray);
    transition: var(--transition);
}

.checkbox-container:hover {
    color: var(--black);
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    transition: var(--transition);
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--primary-green);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--primary-green);
    border-color: var(--primary-green);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 6px;
    top: 2px;
    width: 4px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Status Box */
.status-box {
    background-color: var(--light-gray);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 2rem;
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.status-box:not(.empty) {
    border-style: solid;
    border-color: var(--light-green);
    background-color: var(--white);
    box-shadow: inset 0 0 20px rgba(16, 185, 129, 0.05);
}

.empty-state {
    text-align: center;
    color: var(--gray);
}

.empty-state i {
    font-size: 3.5rem;
    color: var(--border-color);
    margin-bottom: 1.2rem;
    transition: var(--transition);
}

.status-box:hover .empty-state i {
    color: var(--primary-green);
    transform: scale(1.05);
}

.empty-state p {
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 280px;
    margin: 0 auto;
}

/* Stats */
.quick-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.stat-item {
    background-color: var(--light-green);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid rgba(16, 185, 129, 0.2);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.1);
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-green);
    margin-bottom: 0.3rem;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--dark-green);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Loading Animation */
.loading-spinner {
    border: 3px solid rgba(16, 185, 129, 0.1);
    border-left-color: var(--primary-green);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

.generating-state {
    text-align: center;
}
.generating-state h4 {
    margin-bottom: 0.8rem;
    color: var(--dark-gray);
    font-size: 1.2rem;
}
.generating-state p {
    font-size: 0.95rem;
    color: var(--gray);
    line-height: 1.5;
}

/* Responsive */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== MOBILE RESPONSIVE (TELEFON UYUMU) ===== */
@media (max-width: 768px) {
    /* Ana Taşıyıcıyı Alt Alta Diz */
    .app-container {
        flex-direction: column;
        overflow-y: auto;
    }

    /* Sol Menüyü (Sidebar) Üst Menü Haline Getir */
    .sidebar {
        width: 100%;
        height: auto;
        min-height: auto;
        flex-direction: column;
        padding-bottom: 1rem;
    }

    /* Menü Linkleri Yatay Kaydırılabilir */
    .main-nav {
        overflow-x: auto;
        white-space: nowrap;
        padding: 0.5rem 0;
    }

    .main-nav ul {
        display: flex;
    }

    .main-nav li a {
        padding: 0.8rem 1rem;
        border-left: none;
        border-bottom: 3px solid transparent;
        font-size: 0.85rem;
    }

    .main-nav li.active a {
        border-left: none;
        border-bottom-color: var(--primary-green);
    }

    /* Profil Kısmı */
    .user-profile {
        padding: 1rem 1.5rem;
        border-top: 1px solid rgba(255,255,255,0.1);
        justify-content: space-between;
    }

    /* Ana İçerik Alanı */
    .content-area {
        overflow-y: visible; 
    }

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

    .top-header h2 {
        font-size: 1.1rem;
    }

    .dashboard-grid {
        padding: 1rem;
        gap: 1rem;
    }

    .card {
        padding: 1.2rem;
    }

    /* Form ve Tabloları Tek Sütun Yap */
    .form-row, .quick-stats {
        grid-template-columns: 1fr;
    }

    /* Butonları Tam Genişlik Yap */
    .actions {
        flex-direction: column;
        width: 100%;
    }
    
    .actions .btn {
        width: 100%;
        justify-content: center;
    }

    /* iOS'ta Input/Textarea otomatik Zoom yapmasını engelle */
    input[type="text"], input[type="password"], input[type="file"], select, textarea {
        font-size: 16px !important;
    }
    
    /* İstatistik Blokları */
    .quick-stats {
        gap: 0.8rem;
    }

}