/*
Theme Name: SMEPlan Theme
Theme URI: https://smeplan.com/
Author: SMEPlan
Author URI: https://smeplan.com
Description: WordPress theme custom built with AI for SMEPlan - featuring dark mode, Times New Roman typography, and modern gradients.
Version: 1.0.0
Text Domain: smeplan-theme
Domain Path: /languages
Requires at least: 5.9
Requires PHP: 7.4
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Tags: blog, custom-logo, dark, typography
*/

/* --- 1. CSS RESET & VARIABLES --- */
:root {
    --bg-color: #111b24;          /* Màu nền tối từ logo */
    --text-color: #e2e8f0;        /* Màu chữ sáng để dễ đọc trên nền tối */
    --accent-cyan: #38bdf8;       /* Màu xanh ngọc từ logo */
    --accent-lime: #a3e635;       /* Màu xanh lá mạ từ logo */
    --font-primary: "Times New Roman", Times, serif;
}

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

/* --- 2. BASE TYPOGRAPHY --- */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-primary);
    font-size: 20px;              /* Size 20 mặc định cho đoạn văn */
    line-height: 1.6;
    padding: 0;
    margin: 0;
}

p {
    font-size: 20px;              /* Đồng bộ size 20px cho mọi thẻ p */
    margin-bottom: 1.5rem;
}

/* --- 3. HEADER & LOGO GRADIENT --- */
.site-header {
    background-color: rgba(17, 27, 36, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 28px;
    font-weight: 800;
    font-family: system-ui, -apple-system, sans-serif;
    text-decoration: none;
    background: linear-gradient(90deg, var(--accent-cyan) 0%, var(--accent-lime) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.main-navigation ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-navigation a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s ease;
}

.main-navigation a:hover {
    color: var(--accent-cyan);
}

/* --- 4. CONTAINER & CONTENT --- */
.site-main {
    max-width: 800px;
    margin: 3rem auto;
    padding: 0 1.5rem;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    color: #ffffff;
    margin-bottom: 1.2rem;
    line-height: 1.2;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }