:root {
    --bg-main: #06090f;
    --bg-card: rgba(23, 32, 47, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.03);
    
    --accent-green: #00f5d4;
    --accent-red: #ff4d6d;
    --accent-blue: #00b4d8;
    --accent-purple: #9d4edd;
    
    --text-primary: #ffffff;
    --text-secondary: #b0b8c4;
    --text-dim: #6c757d;
    
    --border-glass: rgba(255, 255, 255, 0.12);
    --shadow-premium: 0 20px 50px rgba(0, 0, 0, 0.6);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset - Force Cleanliness */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background: var(--bg-main) !important;
    background-image: 
        radial-gradient(circle at 10% 10%, rgba(0, 180, 216, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(157, 78, 221, 0.05) 0%, transparent 40%) !important;
    color: var(--text-primary) !important;
    min-height: 100vh;
}

/* Clear the Blue/Purple Links FOREVER */
a {
    color: inherit !important;
    text-decoration: none !important;
    transition: var(--transition) !important;
}

a:hover {
    color: var(--accent-blue) !important;
    text-decoration: none !important;
}

/* Premium Typography */
h1 { font-size: 2.85rem; font-weight: 800; letter-spacing: -0.04em; margin-bottom: 1.5rem; line-height: 1.1; }
h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 1.2rem; }
h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 1rem; }

/* Form Elements (The Fix for 'Biçimsiz' Textboxes) */
input, select, textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.45) !important;
    border: 2px solid var(--border-glass) !important;
    border-radius: 14px !important;
    padding: 14px 20px !important;
    color: #fff !important;
    font-size: 1rem !important;
    outline: none !important;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent-blue) !important;
    box-shadow: 0 0 20px rgba(0, 180, 216, 0.2) !important;
    background: rgba(0, 180, 216, 0.08) !important;
}

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 10px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Glassmorphism Containers */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-premium);
    border-radius: 24px;
    padding: 2.5rem;
}

/* Premium Navigation Bar */
.premium-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 4rem;
    height: 90px;
    background: rgba(6, 9, 15, 0.95);
    backdrop-filter: blur(30px);
    border-bottom: 1px solid var(--border-glass);
    position: sticky;
    top: 0;
    z-index: 9999;
}

.nav-logo {
    font-size: 1.6rem;
    font-weight: 900;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 15px;
    letter-spacing: -0.02em;
}

.nav-logo i {
    color: var(--accent-blue);
    font-size: 1.8rem;
    filter: drop-shadow(0 0 10px rgba(0, 180, 216, 0.5));
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text-secondary) !important;
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
    padding: 12px 0;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary) !important;
}

.nav-links a::after {
    content: "";
    position: absolute;
    bottom: -5px; left: 0; width: 0; height: 3px;
    background: var(--accent-blue);
    border-radius: 4px;
    transition: var(--transition);
}

.nav-links a.active::after, .nav-links a:hover::after {
    width: 100%;
}

.nav-user {
    display: flex; align-items: center; gap: 2rem;
}

.logout-btn {
    color: var(--accent-red) !important;
    border: 2.5px solid rgba(255, 77, 109, 0.3) !important;
    padding: 10px 22px;
    border-radius: 14px;
    font-weight: 800;
}

.logout-btn:hover {
    background: rgba(255, 77, 109, 0.2) !important;
    border-color: var(--accent-red) !important;
}

/* Premium Tables */
.premium-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 12px;
}
.premium-table th { text-align: left; padding: 1.2rem; color: var(--text-dim); text-transform: uppercase; font-size: 0.8rem; font-weight: 800; letter-spacing: 0.05em; }
.premium-table td { background: rgba(255,255,255,0.035); padding: 1.6rem 1.4rem; border-top: 1px solid var(--border-glass); border-bottom: 1px solid var(--border-glass); }
.premium-table td:first-child { border-left: 1px solid var(--border-glass); border-radius: 18px 0 0 18px; }
.premium-table td:last-child { border-right: 1px solid var(--border-glass); border-radius: 0 18px 18px 0; }

.badge {
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 900;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.badge-in { background: rgba(0, 245, 212, 0.15); color: var(--accent-green); border: 1.5px solid var(--accent-green); }
.badge-out { background: rgba(255, 77, 109, 0.15); color: var(--accent-red); border: 1.5px solid var(--accent-red); }

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), #0077b6) !important;
    color: white !important;
    border: none !important;
    padding: 14px 28px !important;
    border-radius: 14px !important;
    font-weight: 800 !important;
    font-size: 1rem !important;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0, 180, 216, 0.4);
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 180, 216, 0.6);
}

/* Mobile Menu Icons */
.burger { display: none; cursor: pointer; }
.burger div { width: 30px; height: 3px; background: white; margin: 6px; border-radius: 5px; transition: var(--transition); }

/* Fix Date Picker Icon Color */
input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
    opacity: 0.7;
}

@media (max-width: 1200px) {
    .premium-nav { padding: 0 2rem; }
    .nav-links {
        position: fixed; top: 0; right: -100%; height: 100vh; width: 320px;
        background: rgba(10,15,25,0.99); flex-direction: column; align-items: center; justify-content: center;
        transition: 0.5s ease;
        z-index: 10000;
        box-shadow: -20px 0 60px rgba(0,0,0,0.8);
    }
    .nav-links.nav-active { right: 0; }
    .burger { display: block; z-index: 10001; }
    .nav-user { display: none; }
}

@media (max-width: 992px) {
    h1 { font-size: 2.2rem; }
    .container { padding: 1.5rem !important; }
    .glass { padding: 1.5rem !important; }
    
    .responsive-grid-2-1 {
        grid-template-columns: 1fr !important;
    }
    
    .settings-grid {
        grid-template-columns: 1fr !important;
    }
    
    .premium-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}

@media (max-width: 600px) {
    h1 { font-size: 1.8rem; }
    .btn-primary { width: 100%; text-align: center; }
}

/* Helper Utilities */
.responsive-grid-2-1 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.responsive-grid-1-2 {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

/* Settings & Sidebar Layouts */
.settings-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.settings-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-item {
    padding: 1.2rem;
    border-radius: 16px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
    font-weight: 600;
}

.sidebar-item:hover, .sidebar-item.active {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-blue);
    border-left: 4px solid var(--accent-blue);
}

.form-group {
    margin-bottom: 2rem;
}

/* Mobile Overrides for New Utilities */
@media (max-width: 992px) {
    .settings-grid, .responsive-grid-2-1, .responsive-grid-1-2 {
        grid-template-columns: 1fr !important;
    }
    
    .settings-sidebar {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 10px;
        margin-bottom: 1.5rem;
    }
    
    .sidebar-item {
        white-space: nowrap;
        padding: 0.8rem 1.2rem;
    }
}