@charset "utf-8";
/*!
Theme Name: phponline2026
Theme URI: http://underscores.me/
Author: Tinaicon from freelance.com/u/tinaicon
Author URI: http://seotoolking.com
Description: custom theme for phponline.in
Version: 1.0.0
Tested up to: 5.4
Requires PHP: 5.6
License: GNU General Public License v2 or later
License URI: LICENSE
Text Domain: phponline-in
Tags: custom-background, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready

This theme, like WordPress, is licensed under the GPL.
Use it to make something cool, have fun, and share what you've learned.

 */

/* ══ DESIGN TOKENS ══ */
:root{
  /* Neutral palette — MDN / Vercel inspired */
  --white:#ffffff;
  --gray-50:#f9fafb;
  --gray-100:#f3f4f6;
  --gray-150:#eaecf0;
  --gray-200:#e5e7eb;
  --gray-300:#d1d5db;
  --gray-400:#9ca3af;
  --gray-500:#6b7280;
  --gray-600:#4b5563;
  --gray-700:#374151;
  --gray-800:#1f2937;
  --gray-900:#111827;

  /* Brand green — confident, editorial (not neon) */
  --green-50:#f0fdf4;
  --green-100:#dcfce7;
  --green-200:#bbf7d0;
  --green-300:#86efac;
  --green-500:#22c55e;
  --green-600:#16a34a;
  --green-700:#15803d;
  --green-800:#166534;

  /* Accent colors */
  --blue-50:#eff6ff;--blue-100:#dbeafe;--blue-600:#2563eb;--blue-700:#1d4ed8;
  --amber-50:#fffbeb;--amber-100:#fef3c7;--amber-600:#d97706;
  --red-50:#fff1f2;--red-100:#ffe4e6;--red-600:#dc2626;
  --purple-50:#faf5ff;--purple-100:#f3e8ff;--purple-600:#9333ea;
  --teal-50:#f0fdfa;--teal-100:#ccfbf1;--teal-600:#0d9488;

  --text-primary:#111827;
  --text-secondary:#374151;
  --text-muted:#6b7280;
  --text-faint:#9ca3af;

  --border:#e5e7eb;
  --border-md:#d1d5db;

  --radius-xs:4px;
  --radius-sm:6px;
  --radius:8px;
  --radius-md:10px;
  --radius-lg:12px;
  --radius-xl:16px;

  --sans:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --mono:'Fira Code','Consolas',monospace;

  --shadow-xs:0 1px 2px rgba(0,0,0,.05);
  --shadow-sm:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow:0 4px 12px rgba(0,0,0,.07),0 2px 4px rgba(0,0,0,.04);
  --shadow-md:0 8px 24px rgba(0,0,0,.09),0 3px 8px rgba(0,0,0,.05);
  --shadow-lg:0 20px 48px rgba(0,0,0,.11),0 8px 16px rgba(0,0,0,.06);

  --header-h:62px;
  --announce-h:38px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--white);color:var(--text-primary);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--gray-100)}
::-webkit-scrollbar-thumb{background:var(--green-500);border-radius:3px}

/* ══ ANNOUNCEMENT BAR ══ */
.announce-bar{background:var(--green-700);color:#fff;text-align:center;padding:.45rem 1rem;font-size:.8rem;font-weight:500;letter-spacing:.1px;position:relative;z-index:300}
.announce-bar a{color:#fff;text-decoration:underline;text-underline-offset:2px}
.announce-close{position:absolute;right:1rem;top:50%;transform:translateY(-50%);background:none;border:none;color:rgba(255,255,255,.7);font-size:1.1rem;cursor:pointer;line-height:1;padding:.2rem .4rem}
.announce-close:hover{color:#fff}

/* ══ HEADER ══ */
.site-header{background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:200;box-shadow:var(--shadow-xs)}
.header-inner{max-width:1280px;margin:0 auto;padding:0 1.5rem;height:var(--header-h);display:flex;align-items:center;gap:1.5rem}

.logo{display:flex;align-items:center;gap:.5rem;flex-shrink:0;font-size:1.25rem;font-weight:800;color:var(--text-primary);letter-spacing:-.5px}
.logo-mark{width:32px;height:32px;background:var(--green-600);color:#fff;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:.7rem;font-weight:500;flex-shrink:0}
.logo-text b{color:var(--green-600)}

/* ── Main Nav ── */
.main-nav{display:flex;align-items:center;gap:2px;flex:1}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:.3rem;padding:.45rem .8rem;font-size:.875rem;font-weight:500;color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;border:none;background:none;font-family:var(--sans);transition:all .15s}
.nav-link:hover,.nav-link.open{background:var(--gray-100);color:var(--text-primary)}
.nav-link.active{color:var(--green-700);background:var(--green-50);font-weight:600}
.nav-chevron{width:14px;height:14px;transition:transform .2s;flex-shrink:0;opacity:.6}
.nav-link.open .nav-chevron{transform:rotate(180deg)}

/* ── Mega Menu ── */
.mega-menu{position:absolute;top:calc(100% + 6px);left:50%;transform:translateX(-50%);background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:1.5rem;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s,transform .18s;transform:translateX(-50%) translateY(-6px);z-index:999;min-width:680px}
.mega-menu.wide{min-width:780px}
.mega-menu.narrow{min-width:280px}
.mega-menu.show{opacity:1;visibility:visible;pointer-events:all;transform:translateX(-50%) translateY(0)}

.mega-cols{display:grid;gap:1.5rem}
.mega-cols-3{grid-template-columns:1fr 1fr 1fr}
.mega-cols-2{grid-template-columns:1fr 1fr}
.mega-cols-1{grid-template-columns:1fr}

.mega-col-head{font-size:.7rem;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--text-faint);margin-bottom:.65rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}

.mega-link{display:flex;align-items:flex-start;gap:.75rem;padding:.55rem .65rem;border-radius:var(--radius);transition:background .15s;margin-bottom:.15rem}
.mega-link:hover{background:var(--gray-50)}
.mega-link:hover .ml-title{color:var(--green-700)}
.ml-icon{width:32px;height:32px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0;margin-top:.05rem}
.ml-title{font-size:.86rem;font-weight:600;color:var(--text-primary);line-height:1.3;margin-bottom:.15rem}
.ml-desc{font-size:.76rem;color:var(--text-muted);line-height:1.45}

.mega-divider{border:none;border-top:1px solid var(--border);margin:1rem 0}

.mega-footer{display:flex;gap:.65rem;flex-wrap:wrap}
.mega-cta{display:inline-flex;align-items:center;gap:.35rem;font-size:.8rem;font-weight:600;color:var(--green-700);background:var(--green-50);border:1px solid var(--green-200);padding:.35rem .8rem;border-radius:100px;transition:all .15s}
.mega-cta:hover{background:var(--green-100)}

/* ── Header right ── */
.header-right{display:flex;align-items:center;gap:.65rem;flex-shrink:0;margin-left:auto}
.header-search{display:flex;align-items:center;gap:.45rem;background:var(--gray-50);border:1px solid var(--border);border-radius:var(--radius);padding:.38rem .75rem;transition:all .18s;cursor:text}
.header-search:focus-within{border-color:var(--green-500);background:var(--white);box-shadow:0 0 0 3px rgba(22,163,74,.1)}
.header-search svg{color:var(--text-faint);flex-shrink:0}
.header-search input{background:none;border:none;outline:none;font-family:var(--sans);font-size:.84rem;color:var(--text-primary);width:155px;padding:.15rem 0}
.header-search input::placeholder{color:var(--text-faint)}

.btn-start{background:var(--green-600);color:#fff;font-weight:600;font-size:.84rem;padding:.45rem 1.1rem;border-radius:var(--radius);border:none;cursor:pointer;font-family:var(--sans);display:inline-flex;align-items:center;gap:.35rem;transition:all .15s;white-space:nowrap;box-shadow:0 1px 3px rgba(22,163,74,.3)}
.btn-start:hover{background:var(--green-700);box-shadow:0 2px 8px rgba(22,163,74,.35)}

/* ── Hamburger ── */
.hamburger{display:none;flex-direction:column;gap:5px;width:38px;height:38px;align-items:center;justify-content:center;background:none;border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:border-color .15s}
.hamburger:hover{border-color:var(--gray-400)}
.hamburger span{display:block;width:18px;height:2px;background:var(--gray-600);border-radius:2px;transition:all .25s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ══ MOBILE DRAWER ══ */
.mobile-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:500;opacity:0;visibility:hidden;transition:all .25s}
.mobile-overlay.show{opacity:1;visibility:visible}

.mobile-drawer{position:fixed;top:0;right:-100%;width:min(340px,90vw);height:100dvh;background:var(--white);z-index:501;transition:right .28s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;overflow:hidden}
.mobile-drawer.show{right:0}

.mob-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1px solid var(--border);flex-shrink:0}
.mob-logo{font-size:1.1rem;font-weight:800;color:var(--text-primary)}
.mob-logo b{color:var(--green-600)}
.mob-close{width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:none;border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;font-size:1.2rem;color:var(--gray-500);transition:all .15s}
.mob-close:hover{background:var(--gray-100);color:var(--text-primary)}

.mob-search{padding:1rem 1.25rem;border-bottom:1px solid var(--border);flex-shrink:0}
.mob-search-box{display:flex;align-items:center;gap:.5rem;background:var(--gray-50);border:1px solid var(--border);border-radius:var(--radius);padding:.5rem .75rem;transition:border-color .15s}
.mob-search-box:focus-within{border-color:var(--green-500)}
.mob-search-box input{background:none;border:none;outline:none;font-family:var(--sans);font-size:.9rem;color:var(--text-primary);flex:1}
.mob-search-box input::placeholder{color:var(--text-faint)}

.mob-nav{flex:1;overflow-y:auto;padding:.75rem 1rem 1rem}

.mob-group{margin-bottom:.5rem}
.mob-group-btn{width:100%;display:flex;align-items:center;justify-content:space-between;padding:.65rem .75rem;background:none;border:none;border-radius:var(--radius);cursor:pointer;font-family:var(--sans);font-size:.9rem;font-weight:600;color:var(--text-primary);transition:background .15s;text-align:left}
.mob-group-btn:hover{background:var(--gray-100)}
.mob-group-btn svg{transition:transform .22s;flex-shrink:0;opacity:.5}
.mob-group-btn.open svg{transform:rotate(180deg)}

.mob-sub{display:none;padding:.25rem 0 .5rem .75rem}
.mob-sub.open{display:block}
.mob-sub-link{display:flex;align-items:center;gap:.6rem;padding:.5rem .75rem;border-radius:var(--radius-sm);font-size:.85rem;color:var(--text-secondary);transition:all .15s;font-weight:500}
.mob-sub-link:hover{background:var(--green-50);color:var(--green-700)}
.mob-sub-icon{font-size:.95rem;width:24px;text-align:center}

.mob-plain-link{display:block;padding:.65rem .75rem;border-radius:var(--radius);font-size:.9rem;font-weight:500;color:var(--text-secondary);transition:background .15s}
.mob-plain-link:hover{background:var(--gray-100);color:var(--text-primary)}

.mob-footer{padding:1rem 1.25rem;border-top:1px solid var(--border);flex-shrink:0}
.mob-cta{display:flex;align-items:center;justify-content:center;gap:.4rem;width:100%;background:var(--green-600);color:#fff;font-weight:700;font-size:.9rem;padding:.75rem 1.5rem;border-radius:var(--radius);border:none;cursor:pointer;font-family:var(--sans);transition:background .15s}
.mob-cta:hover{background:var(--green-700)}

/* ══ HERO ══ */
.hero{background:var(--gray-50);border-bottom:1px solid var(--border);padding:4.5rem 1.5rem 4rem}
.hero-inner{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:center}

.hero-eyebrow{display:inline-flex;align-items:center;gap:.45rem;background:var(--green-50);border:1px solid var(--green-200);color:var(--green-700);font-size:.75rem;font-weight:600;padding:.28rem .7rem;border-radius:100px;margin-bottom:1.1rem;letter-spacing:.3px;text-transform:uppercase}
.hero-eyebrow-dot{width:6px;height:6px;background:var(--green-500);border-radius:50%;display:inline-block}

.hero h1{font-size:clamp(2rem,3.4vw,2.9rem);font-weight:800;line-height:1.14;letter-spacing:-1px;color:var(--text-primary);margin-bottom:1.1rem}
.hero h1 .hl{color:var(--green-600)}
.hero-desc{font-size:1.02rem;color:var(--text-secondary);line-height:1.75;margin-bottom:2rem;max-width:430px}

.hero-btns{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:2.5rem}
.btn-primary{background:var(--green-600);color:#fff;font-weight:700;font-size:.9rem;padding:.72rem 1.4rem;border-radius:var(--radius);border:none;cursor:pointer;font-family:var(--sans);display:inline-flex;align-items:center;gap:.4rem;transition:all .15s;box-shadow:0 2px 6px rgba(22,163,74,.3)}
.btn-primary:hover{background:var(--green-700);transform:translateY(-1px);box-shadow:0 4px 12px rgba(22,163,74,.35)}
.btn-outline{background:var(--white);color:var(--text-primary);font-weight:600;font-size:.9rem;padding:.72rem 1.4rem;border-radius:var(--radius);border:1px solid var(--border-md);cursor:pointer;font-family:var(--sans);display:inline-flex;align-items:center;gap:.4rem;transition:all .15s;box-shadow:var(--shadow-xs)}
.btn-outline:hover{border-color:var(--gray-400);background:var(--gray-50)}

.hero-stats{display:flex;gap:2rem;padding-top:1.75rem;border-top:1px solid var(--border)}
.stat-num{font-size:1.45rem;font-weight:800;color:var(--text-primary);line-height:1}
.stat-label{font-size:.76rem;color:var(--text-muted);margin-top:.15rem}

/* Code card */
.code-card{background:#1e1e2e;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.07)}
.code-bar{background:#181825;padding:.65rem 1rem;display:flex;align-items:center;gap:.45rem;border-bottom:1px solid rgba(255,255,255,.06)}
.cdot{width:11px;height:11px;border-radius:50%}
.cdot-r{background:#ff5f57}.cdot-y{background:#febc2e}.cdot-g{background:#28c840}
.code-fname{font-size:.73rem;color:#585b70;margin-left:.5rem;font-family:var(--mono)}
.code-body{padding:1.4rem 1.5rem;font-family:var(--mono);font-size:.8rem;line-height:1.9;overflow-x:auto}
.ln{color:#45475a;margin-right:1.1rem;user-select:none;font-size:.72rem}
.kw{color:#cba6f7}.fn{color:#a6e3a1}.str{color:#a6e3a1}.var2{color:#fab387}.cmt{color:#585b70;font-style:italic}.op{color:#89dceb}.num{color:#fab387}
.code-out{background:#181825;border-top:1px solid rgba(255,255,255,.06);padding:.65rem 1.5rem;font-family:var(--mono);font-size:.75rem;color:#a6e3a1;display:flex;align-items:center;gap:.5rem}
.code-out::before{content:"▶";font-size:.6rem;opacity:.6}

/* ══ SECTION BASE ══ */
.section{padding:4rem 1.5rem}
.section-inner{max-width:1280px;margin:0 auto}
.alt{background:var(--gray-50);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}

.sec-tag{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--green-700);background:var(--green-50);border:1px solid var(--green-200);padding:.22rem .6rem;border-radius:100px;margin-bottom:.6rem}
.sec-title{font-size:clamp(1.4rem,2.4vw,1.85rem);font-weight:800;letter-spacing:-.4px;color:var(--text-primary);margin-bottom:.5rem}
.sec-sub{color:var(--text-secondary);font-size:.95rem;max-width:500px}
.sec-head{margin-bottom:2.25rem}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:2.25rem}

/* ══ PATH CARDS ══ */
.paths-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:1rem}
.path-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.4rem 1.25rem;transition:all .2s;cursor:pointer;box-shadow:var(--shadow-sm);display:block}
.path-card:hover{border-color:var(--green-400);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.path-icon{width:42px;height:42px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:1.25rem;margin-bottom:.9rem}
.path-card h3{font-size:.96rem;font-weight:700;color:var(--text-primary);margin-bottom:.35rem}
.path-card p{font-size:.81rem;color:var(--text-secondary);line-height:1.6;margin-bottom:1rem}
.path-foot{display:flex;align-items:center;justify-content:space-between}
.pill{font-size:.67rem;font-weight:600;padding:.2rem .55rem;border-radius:100px;letter-spacing:.2px}
.pill-g{background:var(--green-50);color:var(--green-700);border:1px solid var(--green-200)}
.pill-a{background:var(--amber-50);color:var(--amber-600);border:1px solid #fde68a}
.pill-r{background:var(--red-50);color:var(--red-600);border:1px solid #fecaca}
.pill-b{background:var(--blue-50);color:var(--blue-600);border:1px solid #bfdbfe}
.path-cnt{font-size:.75rem;color:var(--text-muted);font-weight:500}

/* ══ ARTICLES ══ */
.art-layout{display:grid;grid-template-columns:3fr 2fr;gap:1.25rem}
.art-featured{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:box-shadow .2s,border-color .2s;display:block}
.art-featured:hover{box-shadow:var(--shadow-md);border-color:var(--gray-300)}
.art-thumb{height:175px;display:flex;align-items:center;justify-content:center;font-size:3rem;position:relative;overflow:hidden}
.art-body{padding:1.35rem 1.4rem 1.5rem}
.art-cat{font-size:.7rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--green-700);margin-bottom:.45rem}
.art-featured h3{font-size:1.05rem;font-weight:700;color:var(--text-primary);line-height:1.4;margin-bottom:.45rem}
.art-featured p{font-size:.83rem;color:var(--text-secondary);line-height:1.65;margin-bottom:.9rem}
.art-meta{display:flex;gap:.75rem;font-size:.74rem;color:var(--text-muted)}

.art-stack{display:flex;flex-direction:column;gap:.75rem}
.art-mini{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:.9rem 1rem;display:flex;gap:.75rem;align-items:flex-start;box-shadow:var(--shadow-sm);transition:all .2s;display:flex}
.art-mini:hover{border-color:var(--green-300);box-shadow:var(--shadow)}
.mini-ico{width:34px;height:34px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:.95rem;flex-shrink:0}
.art-mini h4{font-size:.85rem;font-weight:600;color:var(--text-primary);line-height:1.4;margin-bottom:.2rem}
.art-mini .mmeta{font-size:.72rem;color:var(--text-muted)}
.view-all-btn{display:flex;align-items:center;justify-content:center;gap:.4rem;padding:.6rem 1rem;background:var(--white);border:1px solid var(--border-md);border-radius:var(--radius);font-size:.83rem;font-weight:600;color:var(--text-secondary);transition:all .15s;cursor:pointer;font-family:var(--sans)}
.view-all-btn:hover{border-color:var(--green-400);color:var(--green-700);background:var(--green-50)}

/* ══ CHEAT SHEETS ══ */
.sheets-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(185px,1fr));gap:.85rem}
.sheet-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.1rem .9rem;text-align:center;transition:all .2s;cursor:pointer;box-shadow:var(--shadow-sm);display:block}
.sheet-card:hover{border-color:var(--green-400);box-shadow:var(--shadow);transform:translateY(-2px)}
.sheet-card .sico{font-size:1.65rem;margin-bottom:.45rem}
.sheet-card h4{font-size:.83rem;font-weight:700;color:var(--text-primary);margin-bottom:.12rem}
.sheet-card .ssub{font-size:.69rem;color:var(--text-muted)}
.sheet-more{border-color:var(--green-200);background:var(--green-50)}
.sheet-more:hover{background:var(--green-100)}
.sheet-more h4{color:var(--green-700)}

/* ══ WHY ══ */
.why-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:1rem}
.why-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.4rem;box-shadow:var(--shadow-sm)}
.why-ico{width:42px;height:42px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:1.25rem;margin-bottom:.85rem;background:var(--gray-100);border:1px solid var(--border)}
.why-card h3{font-size:.95rem;font-weight:700;color:var(--text-primary);margin-bottom:.38rem}
.why-card p{font-size:.82rem;color:var(--text-secondary);line-height:1.7}

/* ══ AD SLOT ══ */
.ad-slot{border:1px dashed var(--border-md);border-radius:var(--radius);background:var(--gray-50);display:flex;align-items:center;justify-content:center;font-size:.72rem;color:var(--text-faint);font-family:var(--mono);text-transform:uppercase;letter-spacing:1px}

/* ══ CTA BANNER ══ */
.cta-wrap{padding:0 1.5rem 4rem;max-width:1280px;margin:0 auto}
.cta-banner{background:linear-gradient(135deg,var(--green-700) 0%,var(--green-800) 100%);border-radius:var(--radius-xl);padding:3.25rem 3rem;text-align:center;position:relative;overflow:hidden}
.cta-banner::before{content:"</>";position:absolute;font-family:var(--mono);font-size:13rem;font-weight:800;color:rgba(255,255,255,.04);right:-1rem;top:-2rem;line-height:1;pointer-events:none}
.cta-banner h2{font-size:clamp(1.45rem,2.5vw,2rem);font-weight:800;color:#fff;margin-bottom:.7rem}
.cta-banner p{color:rgba(255,255,255,.8);margin-bottom:1.75rem;max-width:440px;margin-left:auto;margin-right:auto;font-size:.95rem}
.btn-white{background:#fff;color:var(--green-700);font-weight:700;font-size:.9rem;padding:.75rem 1.65rem;border-radius:var(--radius);border:none;cursor:pointer;font-family:var(--sans);display:inline-flex;align-items:center;gap:.4rem;transition:all .15s;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 5px 14px rgba(0,0,0,.18)}

/* ══ FOOTER ══ */
footer{background:var(--gray-900);color:var(--gray-400);padding:3.5rem 1.5rem 2rem}
.footer-inner{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;margin-bottom:2.75rem}
.f-brand-logo{font-size:1.1rem;font-weight:800;color:var(--white);margin-bottom:.7rem;display:flex;align-items:center;gap:.4rem}
.f-brand-ico{background:var(--green-600);color:#fff;padding:.2rem .4rem;border-radius:4px;font-family:var(--mono);font-size:.65rem}
footer .f-desc{font-size:.81rem;color:var(--gray-500);line-height:1.7;margin-bottom:1.1rem}
.f-badge{display:inline-flex;align-items:center;gap:.35rem;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:var(--gray-400);font-size:.73rem;padding:.28rem .65rem;border-radius:100px}
.f-badge-dot{width:6px;height:6px;background:var(--green-500);border-radius:50%}
.footer-col h5{font-size:.76rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:1.2px;margin-bottom:.9rem}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:.5rem}
.footer-col a{font-size:.81rem;color:var(--gray-500);transition:color .15s}
.footer-col a:hover{color:var(--green-400)}
.footer-bottom{max-width:1280px;margin:0 auto;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:space-between;font-size:.77rem;color:var(--gray-600)}
.key-topics{
    background:#f4f8ff;
    border:1px solid #c8d9ff;
    border-left:5px solid #2563eb;
    border-radius:18px;
    padding:30px 35px;
    margin:30px 0;
}

.key-topics h3{
    margin:0 0 0px;
    font-size:1.06rem;
    font-weight:800;
    text-transform:uppercase;
    color:#0f172a;
    letter-spacing:.5px;
}

.key-topics ul{
    list-style:none;
    padding:0;
    margin:0;
}

.key-topics li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 0;
  line-height: 1.8;
  color: #1d4ed8;
  font-size: 14px;
}

.key-topics li::before{
    content:"✓";
    position:absolute;
    left:0;
    top:2px;
    color:#2563eb;
    font-size:16px;
    font-weight:700;
}

@media (max-width:768px){
    .key-topics{
        padding:20px;
        border-radius:14px;
    }

    .key-topics h3{
        font-size:1.25rem;
    }

    .key-topics li{
        font-size:.95rem;
        line-height:1.7;
    }
}
/* ══ RESPONSIVE ══ */
@media(max-width:1024px){
  .main-nav{display:none}
  .hamburger{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:2.5rem}
  .code-card{display:none}
  .art-layout{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr;gap:2rem}
  .header-search{display:none}
}
@media(max-width:640px){
  .footer-inner{grid-template-columns:1fr;gap:1.75rem}
  .hero{padding:2.75rem 1rem 2.75rem}
  .section{padding:2.75rem 1rem}
  .cta-wrap{padding:0 0 3rem}
  .cta-banner{border-radius:0;padding:2.5rem 1.25rem}
  .hero-stats{gap:1.5rem}
  .hero-stats .stat-num{font-size:1.25rem}
  footer{padding:2.5rem 1rem 1.5rem}
  .footer-bottom{flex-direction:column;gap:.5rem;text-align:center}
}

/* ══ LAYOUT ══ */
.sp-layout{max-width:1280px;margin:0 auto;padding:2rem 1.5rem 4rem;display:grid;grid-template-columns:1fr 300px;gap:2.5rem;align-items:start}

/* ══ ARTICLE ══ */
.sp-article{min-width:0}

/* Hero */
.sp-hero{margin-bottom:2rem}
.sp-cats{display:flex;gap:.4rem;flex-wrap:wrap;margin-bottom:.85rem}
.cat-tag{font-size:.67rem;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:.2rem .55rem;border-radius:100px}
.cat-php{background:#f3e8ff;color:#7c3aed;border:1px solid #e9d5ff}
.cat-blog{background:var(--gray-100);color:var(--gray-600);border:1px solid var(--border)}
.cat-career{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}
.cat-wp{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}
.cat-err{background:#fff1f2;color:#be123c;border:1px solid #fecdd3}
.cat-inter{background:#f0fdfa;color:#0f766e;border:1px solid #99f6e4}
.cat-cs{background:#fefce8;color:#854d0e;border:1px solid #fef08a}

.sp-article h1{font-size:clamp(1.65rem,2.8vw,2.2rem);font-weight:800;letter-spacing:-.6px;line-height:1.2;color:var(--text-primary);margin-bottom:1rem}
.sp-meta{display:flex;align-items:center;gap:.85rem;flex-wrap:wrap;font-size:.79rem;color:var(--text-muted);margin-bottom:1.25rem;padding-bottom:1.25rem;border-bottom:1px solid var(--border)}
.author-chip{display:flex;align-items:center;gap:.4rem}
.author-av{width:26px;height:26px;border-radius:50%;background:var(--green-100);border:1.5px solid var(--green-200);display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:800;color:var(--green-700);flex-shrink:0}
.sp-meta-divider{color:var(--border-md)}
.sp-actions{display:flex;align-items:center;gap:.45rem;margin-left:auto}
.act-btn{display:flex;align-items:center;gap:.3rem;padding:.3rem .65rem;border-radius:var(--radius-sm);font-size:.74rem;font-weight:600;border:1px solid var(--border);background:var(--white);color:var(--text-muted);cursor:pointer;font-family:var(--sans);transition:all .15s}
.act-btn:hover{border-color:var(--green-300);background:var(--green-50);color:var(--green-700)}

/* Featured image */
.sp-thumb{border-radius:var(--radius-xl);overflow:hidden;margin-bottom:1.75rem;box-shadow:var(--shadow-md)}
.sp-thumb img{width:100%;height:auto;display:block}
.sp-thumb-placeholder{background:linear-gradient(135deg,var(--green-700),var(--green-800));height:320px;display:flex;align-items:center;justify-content:center;font-size:5rem}

/* TOC box */
.toc-inline{background:var(--gray-50);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.25rem 1.4rem;margin:1.5rem 0 2rem}
.toc-inline-title{font-size:.82rem;font-weight:800;color:var(--text-primary);margin-bottom:.85rem;display:flex;align-items:center;gap:.4rem}
.toc-inline ol{margin:0;padding-left:1.25rem;display:flex;flex-direction:column;gap:.3rem}
.toc-inline li{font-size:.83rem;color:var(--text-secondary)}
.toc-inline a{color:var(--green-700);text-decoration:underline;text-underline-offset:2px;transition:color .15s}
.toc-inline a:hover{color:var(--green-800)}
.toc-inline ol ol{margin-top:.3rem;padding-left:1rem}
.toc-inline ol ol li{font-size:.79rem}

/* Body typography */
.sp-body h2{font-size:1.25rem;font-weight:800;color:var(--text-primary);margin:2.25rem 0 .7rem;padding-top:.5rem;letter-spacing:-.3px;scroll-margin-top:80px;display:flex;align-items:center;gap:.4rem}
.sp-body h3{font-size:1.02rem;font-weight:700;color:var(--text-primary);margin:1.6rem 0 .5rem;scroll-margin-top:80px}
.sp-body h4{font-size:.93rem;font-weight:700;color:var(--text-secondary);margin:1.2rem 0 .4rem}
.sp-body p{font-size:.95rem;color:var(--text-secondary);line-height:1.8;margin-bottom:1rem}
.sp-body ul,.sp-body ol{margin:.5rem 0 1.1rem 1.5rem;color:var(--text-secondary);font-size:.94rem;line-height:1.78}
.sp-body li{margin-bottom:.32rem}
.sp-body strong{font-weight:700;color:var(--text-primary)}
.sp-body a{color:var(--green-600);text-decoration:underline;text-underline-offset:2px}
.sp-body a:hover{color:var(--green-700)}
.sp-body hr{border:none;border-top:1px solid var(--border);margin:2rem 0}
.sp-body em{font-style:italic;color:var(--text-muted);font-size:.87rem;display:block;margin:1.5rem 0}

/* Salary table */
.salary-table{width:100%;border-collapse:collapse;font-size:.87rem;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--border);margin:1.1rem 0 1.5rem}
.salary-table th{background:var(--gray-900);color:#fff;padding:.65rem 1.1rem;text-align:left;font-size:.76rem;font-weight:700;letter-spacing:.3px}
.salary-table td{padding:.65rem 1.1rem;border-bottom:1px solid var(--border);color:var(--text-secondary);line-height:1.5}
.salary-table tr:last-child td{border-bottom:none}
.salary-table tr:nth-child(even) td{background:var(--gray-50)}
.salary-table .highlight td{background:var(--green-50)!important;color:var(--green-800);font-weight:600}
.salary-table td:last-child{font-weight:600;color:var(--green-700)}

/* Callout */
.callout{border-radius:var(--radius-md);padding:.9rem 1.1rem;margin:1.25rem 0;display:flex;gap:.75rem;font-size:.9rem;line-height:1.65}
.callout-icon{font-size:1.1rem;flex-shrink:0;margin-top:.1rem}
.callout-body strong{display:block;font-weight:700;margin-bottom:.2rem;font-size:.88rem}
.callout-body p{margin:0;font-size:.88rem;color:inherit}
.callout-tip{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534}
.callout-info{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af}
.callout-warn{background:#fffbeb;border:1px solid #fde68a;color:#92400e}

/* FAQ */
.faq-list{margin-top:.5rem}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:last-child{border-bottom:none}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:.85rem 0;cursor:pointer;font-size:.93rem;font-weight:700;color:var(--text-primary);gap:.75rem;user-select:none}
.faq-chevron{width:16px;height:16px;flex-shrink:0;color:var(--text-faint);transition:transform .22s}
.faq-item.open .faq-chevron{transform:rotate(180deg)}
.faq-a{display:none;padding-bottom:.9rem;font-size:.88rem;color:var(--text-secondary);line-height:1.72}
.faq-item.open .faq-a{display:block}

/* Tags */
.sp-tags{display:flex;gap:.4rem;flex-wrap:wrap;margin:2rem 0;padding-top:1.5rem;border-top:1px solid var(--border)}
.tag-pill{background:var(--gray-100);color:var(--text-secondary);font-size:.73rem;font-weight:500;padding:.28rem .65rem;border-radius:100px;border:1px solid var(--border);transition:all .15s}
.tag-pill:hover{background:var(--green-50);color:var(--green-700);border-color:var(--green-200)}

/* Author box */
.author-box{background:var(--gray-50);border:1px solid var(--border);border-radius:var(--radius-xl);padding:1.5rem;display:flex;gap:1.25rem;align-items:flex-start;margin:2rem 0}
.author-big-av{width:54px;height:54px;border-radius:50%;background:var(--green-100);border:2.5px solid var(--green-200);display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:800;color:var(--green-700);flex-shrink:0}
.author-name{font-size:.95rem;font-weight:700;margin-bottom:.2rem}
.author-role{font-size:.76rem;color:var(--green-700);font-weight:600;margin-bottom:.3rem}
.author-bio{font-size:.82rem;color:var(--text-muted);line-height:1.65}

/* Post nav */
.post-nav{display:flex;align-items:stretch;gap:1rem;margin:2.5rem 0;padding-top:1.5rem;border-top:1px solid var(--border)}
.pn-btn{flex:1;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:.9rem 1.1rem;transition:all .2s;display:block;box-shadow:var(--shadow-sm)}
.pn-btn:hover{border-color:var(--green-400);box-shadow:var(--shadow-md)}
.pn-label{font-size:.68rem;font-weight:700;letter-spacing:.6px;text-transform:uppercase;color:var(--text-faint);margin-bottom:.3rem;display:flex;align-items:center;gap:.3rem}
.pn-title{font-size:.87rem;font-weight:700;color:var(--text-primary);line-height:1.4}

/* Related posts */
.related-section{margin:2rem 0}
.related-section h3{font-size:1rem;font-weight:800;margin-bottom:1.1rem;color:var(--text-primary)}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.85rem}
.related-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .2s;display:block}
.related-card:hover{border-color:var(--green-300);box-shadow:var(--shadow);transform:translateY(-2px)}
.rc-thumb{height:90px;display:flex;align-items:center;justify-content:center;font-size:2rem}
.rc-body{padding:.75rem}
.rc-cat{font-size:.64rem;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--green-700);margin-bottom:.3rem}
.rc-body h4{font-size:.82rem;font-weight:700;color:var(--text-primary);line-height:1.4}

/* Comments */
.comments-section{margin:2rem 0;padding-top:1.75rem;border-top:1px solid var(--border)}
.comments-section h3{font-size:1rem;font-weight:800;margin-bottom:1.25rem;color:var(--text-primary)}
.comment-form{background:var(--gray-50);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem}
.comment-form h4{font-size:.88rem;font-weight:700;margin-bottom:1rem;color:var(--text-primary)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:.75rem}
.form-field{display:flex;flex-direction:column;gap:.3rem;margin-bottom:.75rem}
.form-field label{font-size:.76rem;font-weight:600;color:var(--text-secondary)}
.form-field input,.form-field textarea{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:.5rem .75rem;font-family:var(--sans);font-size:.85rem;color:var(--text-primary);outline:none;transition:border-color .15s}
.form-field input:focus,.form-field textarea:focus{border-color:var(--green-500);box-shadow:0 0 0 3px rgba(22,163,74,.1)}
.form-field textarea{resize:vertical;min-height:110px;line-height:1.6}
.submit-btn{background:var(--green-600);color:#fff;font-weight:700;font-size:.88rem;padding:.65rem 1.5rem;border-radius:var(--radius);border:none;cursor:pointer;font-family:var(--sans);transition:background .15s}
.submit-btn:hover{background:var(--green-700)}
.no-comments{text-align:center;padding:2rem;color:var(--text-muted);font-size:.87rem;background:var(--gray-50);border-radius:var(--radius-lg);border:1px dashed var(--border-md)}

/* ══ SIDEBAR ══ */
.sp-sidebar{position:sticky;top:74px}
.sb-widget{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);margin-bottom:1.1rem}
.sb-head{padding:.72rem 1rem;background:var(--gray-900);color:#fff;font-size:.76rem;font-weight:700;display:flex;align-items:center;gap:.4rem}
.sb-toc-nav{max-height:380px;overflow-y:auto;padding:.4rem 0}
.sb-toc-nav::-webkit-scrollbar{width:3px}
.sb-toc-nav::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:2px}
.sb-toc-link{display:block;padding:.36rem 1rem;font-size:.78rem;color:var(--text-secondary);transition:all .15s;border-left:2px solid transparent;line-height:1.4}
.sb-toc-link:hover{background:var(--gray-50);color:var(--green-700);border-left-color:var(--green-300)}
.sb-toc-link.active{background:var(--green-50);color:var(--green-700);font-weight:600;border-left-color:var(--green-600)}
.sb-toc-link.h3{padding-left:1.65rem;font-size:.74rem;color:var(--text-muted)}

/* cat list */
.sb-cat-list{padding:.4rem 0;max-height:300px;overflow-y:auto}
.sb-cat-link{display:flex;align-items:center;justify-content:space-between;padding:.36rem 1rem;font-size:.79rem;color:var(--text-secondary);transition:all .15s}
.sb-cat-link:hover{background:var(--green-50);color:var(--green-700)}
.sb-cat-count{font-size:.68rem;color:var(--text-faint);background:var(--gray-100);border:1px solid var(--border);padding:.1rem .38rem;border-radius:100px;font-weight:600}

/* sel reading */
.sb-sel-list{padding:.4rem 0}
.sb-sel-link{display:flex;align-items:center;gap:.45rem;padding:.38rem 1rem;font-size:.78rem;color:var(--text-secondary);transition:all .15s}
.sb-sel-link:hover{background:var(--green-50);color:var(--green-700)}
.sb-sel-link::before{content:'→';color:var(--green-500);font-size:.7rem;flex-shrink:0}

/* ══ RESPONSIVE ══ */
@media(max-width:1024px){.sp-layout{grid-template-columns:1fr}.sp-sidebar{display:none}}
@media(max-width:600px){.related-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.post-nav{flex-direction:column}.sp-thumb-placeholder{height:200px}}