/*
Theme Name: SpeedBlog Pro
Theme URI: https://example.com/speedblog-pro
Author: Niloy
Author URI: https://example.com
Description: A premium news portal WordPress theme with rich CNN/BBC-style layouts, elegant typography (Playfair Display + Inter), full dark mode, custom author bio management, and lightning-fast performance. Works 100% out-of-the-box with zero configuration.
Version: 2.0.0
Requires at least: 5.8
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: speedblog-pro
Tags: blog, news, magazine, custom-menu, featured-images, threaded-comments, responsive-layout, rtl-language-support, translation-ready, custom-colors, editor-style, wide-blocks, accessibility-ready

SpeedBlog Pro WordPress Theme, Copyright 2024 Niloy
Developed by Niloy | Contact: 01947527775
SpeedBlog Pro is distributed under the terms of the GNU GPL.
*/

/* ============================================================
   DESIGN SYSTEM - CSS CUSTOM PROPERTIES
   Premium News Portal Tokens
   ============================================================ */
:root {
    /* Brand Colors */
    --sb-primary: #0F172A;
    --sb-primary-light: #1E293B;
    --sb-primary-dark: #020617;
    --sb-secondary: #334155;
    --sb-accent: #DC2626;
    --sb-accent-hover: #B91C1C;
    --sb-accent-light: #FEE2E2;
    --sb-accent-secondary: #F59E0B;
    --sb-accent-secondary-hover: #D97706;

    /* Text */
    --sb-text-primary: #0F172A;
    --sb-text-secondary: #64748B;
    --sb-text-tertiary: #94A3B8;
    --sb-text-inverse: #FFFFFF;

    /* Backgrounds */
    --sb-bg-primary: #FFFFFF;
    --sb-bg-secondary: #F8FAFC;
    --sb-bg-tertiary: #F1F5F9;
    --sb-bg-dark: #0F172A;

    /* Borders */
    --sb-border: #E2E8F0;
    --sb-border-light: #F1F5F9;
    --sb-border-accent: #DC2626;

    /* Header/Footer */
    --sb-header-bg: #FFFFFF;
    --sb-nav-bg: #0F172A;
    --sb-nav-text: #FFFFFF;
    --sb-topbar-bg: #0B1120;
    --sb-topbar-text: #CBD5E1;
    --sb-footer-bg: #0F172A;
    --sb-footer-text: #CBD5E1;

    /* Typography */
    --sb-font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --sb-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --sb-font-code: 'Fira Code', Consolas, Monaco, monospace;
    --sb-font-size-base: 17px;

    /* Spacing */
    --sb-spacing-xs: 4px;
    --sb-spacing-sm: 8px;
    --sb-spacing-md: 16px;
    --sb-spacing-lg: 24px;
    --sb-spacing-xl: 32px;
    --sb-spacing-2xl: 48px;
    --sb-spacing-3xl: 64px;
    --sb-spacing-4xl: 96px;

    /* Layout */
    --sb-content-width: 1320px;
    --sb-max-width: 1440px;
    --sb-sidebar-width: 320px;

    /* Border Radius */
    --sb-radius-sm: 4px;
    --sb-radius-md: 8px;
    --sb-radius-lg: 12px;
    --sb-radius-xl: 16px;
    --sb-radius-full: 9999px;

    /* Shadows */
    --sb-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
    --sb-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.1);
    --sb-shadow-lg: 0 8px 30px rgba(15, 23, 42, 0.12);
    --sb-shadow-xl: 0 20px 60px rgba(15, 23, 42, 0.15);

    /* Transitions */
    --sb-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --sb-transition-fast: all 0.15s ease;
    --sb-transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Gradients */
    --sb-gradient-hero: linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, rgba(15, 23, 42, 0.3) 40%, rgba(15, 23, 42, 0.92) 100%);
    --sb-gradient-accent: linear-gradient(135deg, #DC2626 0%, #F59E0B 100%);
    --sb-gradient-dark: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);

    /* Z-index */
    --sb-z-dropdown: 100;
    --sb-z-sticky: 200;
    --sb-z-fixed: 300;
    --sb-z-overlay: 400;
    --sb-z-modal: 500;
}

/* Dark Mode Token Overrides */
[data-theme="dark"] {
    --sb-primary: #F8FAFC;
    --sb-primary-light: #E2E8F0;
    --sb-primary-dark: #FFFFFF;
    --sb-accent: #EF4444;
    --sb-accent-hover: #DC2626;
    --sb-accent-secondary: #FBBF24;

    --sb-text-primary: #F8FAFC;
    --sb-text-secondary: #94A3B8;
    --sb-text-tertiary: #64748B;

    --sb-bg-primary: #0F172A;
    --sb-bg-secondary: #1E293B;
    --sb-bg-tertiary: #334155;
    --sb-bg-dark: #020617;

    --sb-border: #334155;
    --sb-border-light: #1E293B;

    --sb-header-bg: #1E293B;
    --sb-nav-bg: #020617;
    --sb-topbar-bg: #000000;
    --sb-footer-bg: #020617;

    --sb-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --sb-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --sb-shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--sb-font-body);
    font-size: var(--sb-font-size-base);
    line-height: 1.75;
    color: var(--sb-text-primary);
    background: var(--sb-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3 {
    font-family: var(--sb-font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--sb-text-primary);
    letter-spacing: -0.02em;
}

h4, h5, h6 {
    font-family: var(--sb-font-body);
    font-weight: 700;
    line-height: 1.35;
    color: var(--sb-text-primary);
}

h1 { font-size: 2.625rem; font-weight: 800; line-height: 1.15; }
h2 { font-size: 2rem; }
h3 { font-size: 1.375rem; line-height: 1.3; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.9375rem; }

p {
    margin-bottom: 1em;
}

a {
    color: var(--sb-accent);
    text-decoration: none;
    transition: var(--sb-transition-fast);
}

a:hover {
    color: var(--sb-accent-hover);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    margin: 0 0 1em 1.5em;
}

blockquote {
    margin: 1.5em 0;
    padding: 1em 1.5em;
    border-left: 4px solid var(--sb-accent);
    background: var(--sb-bg-secondary);
    font-style: italic;
    font-size: 1.125em;
}

code {
    font-family: var(--sb-font-code);
    font-size: 0.9em;
    padding: 2px 6px;
    background: var(--sb-bg-tertiary);
    border-radius: var(--sb-radius-sm);
}

pre {
    font-family: var(--sb-font-code);
    padding: 1em 1.5em;
    background: var(--sb-primary);
    color: var(--sb-text-inverse);
    border-radius: var(--sb-radius-md);
    overflow-x: auto;
    margin: 1.5em 0;
}

pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

hr {
    border: none;
    border-top: 1px solid var(--sb-border);
    margin: 2em 0;
}

/* Form Elements Base */
input, textarea, select, button {
    font-family: inherit;
    font-size: inherit;
}

input[type="text"],
input[type="email"],
input[type="url"],
input[type="search"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--sb-border);
    border-radius: var(--sb-radius-sm);
    background: var(--sb-bg-primary);
    color: var(--sb-text-primary);
    transition: var(--sb-transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--sb-accent);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* ============================================================
   LAYOUT CONTAINERS
   ============================================================ */
.sb-container {
    max-width: var(--sb-content-width);
    margin: 0 auto;
    padding: 0 var(--sb-spacing-lg);
}

.sb-container-wide {
    max-width: var(--sb-max-width);
    margin: 0 auto;
    padding: 0 var(--sb-spacing-lg);
}

.sb-container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--sb-spacing-lg);
}

.sb-section {
    padding: var(--sb-spacing-3xl) 0;
}

.sb-section-sm {
    padding: var(--sb-spacing-2xl) 0;
}

.sb-section-alt {
    background: var(--sb-bg-secondary);
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute !important;
    width: 1px;
    word-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: #fff;
    clip: auto !important;
    clip-path: none;
    color: #0F172A;
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    height: auto;
    left: 5px;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

.sb-skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--sb-accent);
    color: #fff;
    padding: 8px 16px;
    z-index: 100000;
    border-radius: 0 0 4px 4px;
    font-weight: 600;
}

.sb-skip-link:focus {
    top: 0;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.sb-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--sb-spacing-sm);
    padding: 12px 28px;
    border: none;
    border-radius: var(--sb-radius-sm);
    font-family: var(--sb-font-body);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    transition: var(--sb-transition);
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: 0.3px;
}

.sb-btn-primary {
    background: var(--sb-accent);
    color: var(--sb-text-inverse);
}

.sb-btn-primary:hover {
    background: var(--sb-accent-hover);
    color: var(--sb-text-inverse);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.35);
}

.sb-btn-dark {
    background: var(--sb-primary);
    color: var(--sb-text-inverse);
}

.sb-btn-dark:hover {
    background: var(--sb-primary-light);
    color: var(--sb-text-inverse);
    transform: translateY(-2px);
}

.sb-btn-outline {
    background: transparent;
    color: var(--sb-text-primary);
    border: 1.5px solid var(--sb-border);
}

.sb-btn-outline:hover {
    border-color: var(--sb-accent);
    color: var(--sb-accent);
    background: var(--sb-bg-secondary);
}

.sb-btn-gradient {
    background: var(--sb-gradient-accent);
    color: var(--sb-text-inverse);
    border: none;
}

.sb-btn-gradient:hover {
    color: var(--sb-text-inverse);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(220, 38, 38, 0.4);
}

.sb-btn-lg {
    padding: 16px 36px;
    font-size: 1rem;
}

.sb-btn-sm {
    padding: 8px 18px;
    font-size: 0.8125rem;
}

/* ============================================================
   BADGES
   ============================================================ */
.sb-badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: var(--sb-radius-sm);
    font-family: var(--sb-font-body);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    line-height: 1;
}

.sb-badge-accent {
    background: var(--sb-accent);
    color: var(--sb-text-inverse);
}

.sb-badge-gold {
    background: var(--sb-accent-secondary);
    color: var(--sb-text-inverse);
}

.sb-badge-dark {
    background: var(--sb-primary);
    color: var(--sb-text-inverse);
}

.sb-badge-outline {
    background: transparent;
    border: 1px solid var(--sb-border);
    color: var(--sb-text-secondary);
}

.sb-badge-category {
    background: var(--sb-accent);
    color: var(--sb-text-inverse);
}

/* ============================================================
   SECTION TITLES
   ============================================================ */
.sb-section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sb-spacing-xl);
    padding-bottom: var(--sb-spacing-md);
    border-bottom: 2px solid var(--sb-border);
    position: relative;
}

.sb-section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--sb-accent);
}

.sb-section-title h2 {
    font-size: 1.75rem;
    margin: 0;
    position: relative;
    padding-left: var(--sb-spacing-md);
}

.sb-section-title h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 4px;
    background: var(--sb-accent);
    border-radius: 2px;
}

.sb-view-all {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--sb-accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.sb-view-all:hover {
    color: var(--sb-accent-hover);
    gap: 10px;
}

/* ============================================================
   POST META
   ============================================================ */
.sb-meta {
    display: flex;
    align-items: center;
    gap: var(--sb-spacing-sm);
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: var(--sb-text-secondary);
    font-weight: 500;
}

.sb-meta-separator {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--sb-text-secondary);
    flex-shrink: 0;
}

.sb-meta-author {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sb-meta-author img {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

.sb-meta a {
    color: var(--sb-text-secondary);
}

.sb-meta a:hover {
    color: var(--sb-accent);
}

/* ============================================================
   READING PROGRESS BAR
   ============================================================ */
.sb-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--sb-gradient-accent);
    z-index: var(--sb-z-fixed);
    transition: width 0.1s linear;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.sb-pagination {
    display: flex;
    justify-content: center;
    gap: var(--sb-spacing-sm);
    margin-top: var(--sb-spacing-2xl);
    flex-wrap: wrap;
}

.sb-pagination a,
.sb-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 14px;
    border-radius: var(--sb-radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    transition: var(--sb-transition);
    border: 1px solid var(--sb-border);
    color: var(--sb-text-primary);
    background: var(--sb-bg-primary);
}

.sb-pagination a:hover {
    background: var(--sb-accent);
    border-color: var(--sb-accent);
    color: var(--sb-text-inverse);
    transform: translateY(-1px);
}

.sb-pagination .current {
    background: var(--sb-accent);
    color: var(--sb-text-inverse);
    border-color: var(--sb-accent);
}

.sb-pagination .dots {
    border: none;
    background: transparent;
}

/* ============================================================
   BACK TO TOP BUTTON (Floating)
   ============================================================ */
.sb-back-to-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--sb-accent);
    color: var(--sb-text-inverse);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--sb-shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--sb-transition);
    z-index: var(--sb-z-fixed);
    cursor: pointer;
    border: none;
}

.sb-back-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sb-back-to-top-btn:hover {
    background: var(--sb-accent-hover);
    transform: translateY(-4px);
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.sb-text-center { text-align: center; }
.sb-text-left { text-align: left; }
.sb-text-right { text-align: right; }
.sb-clearfix::after { content: ''; display: table; clear: both; }
.sb-hidden { display: none !important; }
.sb-no-scroll { overflow: hidden; }

/* Line clamp */
.sb-clamp-1, .sb-clamp-2, .sb-clamp-3 {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sb-clamp-1 { -webkit-line-clamp: 1; line-clamp: 1; }
.sb-clamp-2 { -webkit-line-clamp: 2; line-clamp: 2; }
.sb-clamp-3 { -webkit-line-clamp: 3; line-clamp: 3; }

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
    .sb-header,
    .sb-footer,
    .sb-sidebar,
    .sb-single-sidebar,
    .sb-floating-share,
    .sb-ticker,
    .sb-topbar,
    .sb-nav-bar,
    .sb-back-to-top-btn,
    .sb-prefooter-cta {
        display: none !important;
    }

    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    .sb-single-content {
        max-width: 100%;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}