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

:root {
    /* Modern Renk Paleti */
    --primary: hsl(142, 76%, 36%);
    --primary-dark: hsl(142, 76%, 26%);
    --primary-light: hsl(142, 76%, 46%);
    --secondary: hsl(200, 98%, 39%);
    --accent: hsl(45, 100%, 51%);
    --success: hsl(142, 71%, 45%);
    --warning: hsl(38, 92%, 50%);
    --danger: hsl(0, 84%, 60%);
    --info: hsl(200, 98%, 39%);

    /* Nötr Renkler */
    --dark: hsl(220, 26%, 14%);
    --dark-2: hsl(220, 20%, 20%);
    --dark-3: hsl(220, 15%, 30%);
    --gray: hsl(220, 10%, 50%);
    --gray-light: hsl(220, 10%, 70%);
    --light: hsl(220, 20%, 95%);
    --white: hsl(0, 0%, 100%);

    /* Seviye Renkleri */
    --bronze: hsl(25, 75%, 47%);
    --silver: hsl(0, 0%, 75%);
    --gold: hsl(45, 100%, 51%);
    --platinum: hsl(210, 20%, 85%);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

/* Dark Mode */
[data-theme="dark"] {
    --dark: hsl(220, 20%, 95%);
    --dark-2: hsl(220, 15%, 85%);
    --dark-3: hsl(220, 10%, 75%);
    --light: hsl(220, 26%, 14%);
    --white: hsl(220, 20%, 10%);
    --gray: hsl(220, 10%, 60%);
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, hsl(220, 26%, 14%) 0%, hsl(220, 20%, 20%) 100%);
    color: var(--white);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Glassmorphism Container */
.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.glass-white {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--dark);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

/* Header / Navbar */
.navbar {
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(30, 35, 48, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
    align-items: center;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-weight: 500;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary), hsl(200, 98%, 29%));
    color: white;
    box-shadow: 0 4px 15px rgba(3, 105, 161, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(3, 105, 161, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Hero Section */
.hero {
    padding: var(--spacing-xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray-light);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    color: var(--dark);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.card-glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.card-header {
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: var(--gray);
    font-size: 0.9rem;
}

.card-body {
    margin-bottom: var(--spacing-md);
}

.card-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding-top: var(--spacing-md);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--white);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-input::placeholder {
    color: var(--gray);
}

.form-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-success {
    color: var(--success);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    gap: 0.25rem;
}

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

.badge-secondary {
    background: var(--secondary);
    color: white;
}

.badge-success {
    background: var(--success);
    color: white;
}

.badge-warning {
    background: var(--warning);
    color: var(--dark);
}

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

.badge-bronze {
    background: var(--bronze);
    color: white;
}

.badge-silver {
    background: var(--silver);
    color: var(--dark);
}

.badge-gold {
    background: var(--gold);
    color: var(--dark);
}

.badge-platinum {
    background: var(--platinum);
    color: var(--dark);
}

/* Stats */
.stat-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--gray);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-left: 4px solid var(--success);
    color: var(--success);
}

.alert-warning {
    background: rgba(251, 146, 60, 0.1);
    border-left: 4px solid var(--warning);
    color: var(--warning);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-left: 4px solid var(--danger);
    color: var(--danger);
}

.alert-info {
    background: rgba(3, 105, 161, 0.1);
    border-left: 4px solid var(--info);
    color: var(--info);
}

/* Loading Spinner */
.spinner {
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mt-1 {
    margin-top: var(--spacing-xs);
}

.mt-2 {
    margin-top: var(--spacing-sm);
}

.mt-3 {
    margin-top: var(--spacing-md);
}

.mt-4 {
    margin-top: var(--spacing-lg);
}

.mb-1 {
    margin-bottom: var(--spacing-xs);
}

.mb-2 {
    margin-bottom: var(--spacing-sm);
}

.mb-3 {
    margin-bottom: var(--spacing-md);
}

.mb-4 {
    margin-bottom: var(--spacing-lg);
}

.p-1 {
    padding: var(--spacing-xs);
}

.p-2 {
    padding: var(--spacing-sm);
}

.p-3 {
    padding: var(--spacing-md);
}

.p-4 {
    padding: var(--spacing-lg);
}

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-column {
    flex-direction: column;
}

.gap-1 {
    gap: var(--spacing-xs);
}

.gap-2 {
    gap: var(--spacing-sm);
}

.gap-3 {
    gap: var(--spacing-md);
}

/* Hamburger Menu Toggle Button */
.menu-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: var(--white);
    font-size: 1.5rem;
    width: 45px;
    height: 45px;
    cursor: pointer;
    transition: var(--transition);
    align-items: center;
    justify-content: center;
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.menu-toggle:active {
    transform: scale(0.95);
}

/* Responsive */
@media (max-width: 768px) {

    /* Show hamburger menu button on mobile */
    .menu-toggle {
        display: flex !important;
    }

    /* Hide navigation menu by default on mobile */
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(30, 35, 48, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }

    /* Show navigation menu when active */
    .nav-menu.active {
        max-height: 500px;
        opacity: 1;
        padding: 1rem 0;
    }

    /* Style navigation links for mobile */
    .nav-menu li {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .nav-link,
    .nav-menu .btn {
        display: block;
        width: 90%;
        margin: 0.5rem auto;
        padding: 1rem;
        text-align: center;
        border-radius: var(--radius-sm);
        font-size: 1rem;
    }

    /* Container padding adjustments */
    .container {
        padding: 0 1rem;
    }

    /* Hero section mobile optimization */
    .hero {
        padding: 2rem 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    /* Grid layouts - single column on mobile */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    /* Card adjustments */
    .card {
        padding: 1rem;
    }

    /* Stat cards mobile */
    .stat-value {
        font-size: 2rem;
    }

    /* Navbar container */
    .navbar .container {
        gap: 1rem;
    }

    /* Logo sizing */
    .logo {
        font-size: 1.2rem;
    }

    .logo-icon {
        font-size: 1.5rem;
    }

    /* KESİN ÇÖZÜM: Mobil Genişlik ve Taşma */
    html,
    body {
        overflow-x: hidden !important;
        width: 100% !important;
        position: relative;
    }

    .container {
        width: 100% !important;
        max-width: 100% !important;
        padding-left: 1rem !important;
        padding-right: 1rem !important;
        box-sizing: border-box !important;
        overflow-x: hidden !important;
    }

    .card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        margin-bottom: 2rem !important;
        /* Dikey boşluk */
    }

    /* Grid sistemi mobilde tek kolon */
    .grid,
    .grid-2,
    .grid-3,
    .grid-4 {
        display: flex !important;
        flex-direction: column !important;
        width: 100% !important;
        gap: 1.5rem !important;
    }

    /* Mobilde menü fix */
    .menu-toggle {
        display: flex !important;
        z-index: 1001 !important;
        /* Navbar üstünde */
    }

    .nav-menu.active {
        display: flex !important;
        flex-direction: column !important;
        position: fixed !important;
        top: 70px !important;
        left: 0 !important;
        width: 100% !important;
        background: rgba(30, 35, 48, 0.98) !important;
        padding: 2rem 0 !important;
        height: auto !important;
        max-height: 80vh !important;
        overflow-y: auto !important;
        border-bottom: 2px solid var(--primary);
    }

    /* Fix stats section overlap on mobile */
    .container[style*="margin-top: -50px"] {
        margin-top: 2rem !important;
        position: static !important;
        z-index: 1 !important;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }

    to {
        transform: translateX(0);
    }
}

.slide-in {
    animation: slideIn 0.4s ease-out;
}