:root {
    --bg-dark: #f3f4f6;
    --bg-card: #ffffff;
    --primary: #1c64f2;
    --primary-hover: #3f83f8;
    --text-main: #111827;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
}

.btn {
    padding: 10px 16px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

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

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

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

.btn-outline:hover {
    background: #f9fafb;
}

/* Login Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #050814;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.login-box {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 12px;
    width: 400px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.login-box h2 {
    margin-bottom: 8px;
}

.login-box p {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 14px;
}

.login-box input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 16px;
}

.login-box button {
    width: 100%;
    justify-content: center;
}

.error-text {
    color: #ef4444 !important;
    margin-top: 12px;
    margin-bottom: 0 !important;
}

/* Admin Layout */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.logo {
    padding: 24px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    border-bottom: 1px solid var(--border-color);
}

.nav-menu {
    padding: 20px 0;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: #eff6ff;
    color: var(--primary);
    border-right: 3px solid var(--primary);
}

.main-content {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
}

.header {
    background: var(--bg-card);
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header h1 {
    font-size: 20px;
}

.content-wrapper {
    padding: 40px;
    max-width: 900px;
}

.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

.mt-4 {
    margin-top: 24px;
}

.mt-2 {
    margin-top: 8px;
}

.card h2 {
    font-size: 18px;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-row>.form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(28, 100, 242, 0.1);
}

textarea.form-control {
    resize: vertical;
}

.feature-item-edit {
    background: #f9fafb;
    padding: 20px;
    border-radius: 8px;
    border: 1px dashed #d1d5db;
    margin-bottom: 20px;
}

.feature-item-edit h3 {
    font-size: 14px;
    margin-bottom: 16px;
    color: var(--text-muted);
}

/* Upload Area */
.upload-area {
    text-align: center;
    padding: 40px 20px;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    background: #f9fafb;
}

.uploaded-img-item {
    padding: 12px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    font-size: 14px;
}

.img-url-btn {
    background: #eff6ff;
    color: var(--primary);
    border: none;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
}

/* Toast */
.toast {
    position: fixed;
    bottom: -100px;
    right: 40px;
    background: #10b981;
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    font-weight: 500;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transition: bottom 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
}

.toast.show {
    bottom: 40px;
}