/* ===== Copeek CRM - Ana Stil Dosyası ===== */

/* CSS Variables - Mavi-Mor Renk Paleti */
:root {
    /* Ana Renkler */
    --primary-color: #6366f1;      /* Indigo */
    --primary-dark: #4f46e5;       /* Koyu Indigo */
    --primary-light: #818cf8;      /* Açık Indigo */
    --secondary-color: #8b5cf6;    /* Violet */
    --secondary-dark: #7c3aed;     /* Koyu Violet */
    --secondary-light: #a78bfa;    /* Açık Violet */
    
    /* Gradient Renkler */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
    --gradient-light: linear-gradient(135deg, #e0e7ff 0%, #f3e8ff 100%);
    
    /* Nötr Renkler */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Durum Renkleri */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* Gölgeler */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ===== Reset ve Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-50);
    overflow-x: hidden;
}

/* ===== Loading Screen ===== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    color: var(--white);
}

.logo-container {
    margin-bottom: 2rem;
}

.logo-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

.logo-text {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ===== Main Container ===== */
.main-container {
    display: flex;
    min-height: 100vh;
    background-color: var(--gray-50);
}

/* ===== Sidebar ===== */
.sidebar {
    width: 280px;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
    z-index: 1000;
    position: relative;
}

.sidebar.collapsed {
    transform: translateX(-100%);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.75rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--gray-500);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background-color: var(--gray-100);
    color: var(--primary-color);
}

.sidebar-menu {
    list-style: none;
    padding: 1rem 0;
}

.menu-item {
    margin: 0.25rem 1rem;
}

.menu-item a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--gray-600);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.menu-item a:hover {
    background-color: var(--gray-100);
    color: var(--primary-color);
}

.menu-item.active a {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.menu-item i {
    font-size: 1.125rem;
    width: 1.25rem;
    text-align: center;
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ===== Top Navigation ===== */
.top-nav {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.menu-toggle {
    background: none;
    border: none;
    color: var(--gray-500);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: none;
}

.menu-toggle:hover {
    background-color: var(--gray-100);
    color: var(--primary-color);
}

.breadcrumb {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-700);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-container {
    position: relative;
    display: none;
}

.search-input {
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    background-color: var(--gray-50);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    width: 300px;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 0.875rem;
}

.notifications {
    position: relative;
}

.notification-btn {
    background: none;
    border: none;
    color: var(--gray-500);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

.notification-btn:hover {
    background-color: var(--gray-100);
    color: var(--primary-color);
}

.notification-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--danger);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.125rem 0.375rem;
    border-radius: 9999px;
    min-width: 1.25rem;
    text-align: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.user-profile:hover {
    background-color: var(--gray-100);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.user-name {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.user-role {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* ===== Page Content ===== */
.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

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

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--gray-600);
    font-size: 1.125rem;
}

/* ===== Content Placeholder ===== */
.content-placeholder {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--gray-500);
}

.content-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--gray-300);
}

.content-placeholder h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--gray-600);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        z-index: 1000;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .search-container {
        display: block;
    }
}

@media (max-width: 768px) {
    .nav-right {
        gap: 1rem;
    }
    
    .user-info {
        display: none;
    }
    
    .page-content {
        padding: 1rem;
    }
    
    .search-input {
        width: 200px;
    }
}

@media (max-width: 480px) {
    .top-nav {
        padding: 1rem;
    }
    
    .search-input {
        width: 150px;
    }
    
    .page-header h1 {
        font-size: 1.5rem;
    }
}