/*
Theme Name:        RSustain Academy
Theme URI:         https://academy.rsustain.co.uk
Author:            Resilient Sustainance Limited
Author URI:        https://rsustain.co.uk
Description:       Proprietary LMS theme for RSustain Academy — ESG, Net Zero, CSRD, UK SDR and ISSB practitioner training.
Version:           2.1.0
Requires at least: 6.2
Tested up to:      6.9
Requires PHP:      8.1
License:           Proprietary — All rights reserved, Resilient Sustainance Limited
Text Domain:       rsustain-academy
Tags:              lms, esg, sustainability, e-learning, custom-menu, custom-logo, full-width-template
*/

/* ── DESIGN TOKENS ── */
:root {
  --rs-navy:     #1B2A4A;
  --rs-navy-l:   #243556;
  --rs-navy-d:   #131E36;
  --rs-forest:   #0C3B2E;
  --rs-forest-m: #155240;
  --rs-forest-l: #1E6B52;
  --rs-sage:     #2E7D5F;
  --rs-mint:     #4DAB84;
  --rs-mint-l:   #7DCBA8;
  --rs-cream:    #F8FAFB;
  --rs-cream-d:  #F0F2F5;
  --rs-gold:     #C9982A;
  --rs-gold-l:   #E5B84A;
  --rs-charcoal: #111827;
  --rs-gray:     #4B5563;
  --rs-gray-l:   #9CA3AF;
  --rs-white:    #FFFFFF;
  --rs-surface:  #FAFBFD;
  --rs-error:    #DC2626;
  --rs-success:  #059669;
  --font-serif:  'Playfair Display', Georgia, serif;
  --font-sans:   'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono:   'DM Mono', monospace;
  --r-sm: 4px; --r-md: 8px; --r-lg: 12px; --r-xl: 16px; --r-2xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.08);
  --ease: all .2s cubic-bezier(.4,0,.2,1);
}

/* ── RESET ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:var(--font-sans);background:#ffffff;color:var(--rs-charcoal);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
.rsa-nav__logo-img{max-width:none;height:32px}
a{color:var(--rs-mint);text-decoration:none;transition:color .15s ease}
a:hover{color:var(--rs-forest)}
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:#f0f0f0}
::-webkit-scrollbar-thumb{background:var(--rs-mint);border-radius:3px}

/* ── LAYOUT ── */
.rs-wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.rs-wrap--narrow{max-width:780px}
.rs-section{padding:5rem 0}
.rs-section--dark{background:var(--rs-navy);color:#fff}
.rs-section--cream{background:var(--rs-cream)}

/* ── TYPOGRAPHY ── */
.rs-eyebrow{display:inline-block;font-size:11px;font-weight:700;color:var(--rs-mint);letter-spacing:.15em;text-transform:uppercase;margin-bottom:.75rem}
.rs-title{font-family:var(--font-serif);font-size:clamp(1.8rem,3vw,2.6rem);font-weight:700;color:var(--rs-navy);line-height:1.2;margin-bottom:1rem}
.rs-desc{font-size:16px;color:var(--rs-gray);line-height:1.7}

/* ── BUTTONS ── */
.rs-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-sans);font-weight:600;cursor:pointer;border:none;border-radius:var(--r-lg);transition:all .2s ease;text-decoration:none;white-space:nowrap;line-height:1}
.rs-btn--primary{background:var(--rs-mint);color:#fff;padding:14px 28px;font-size:14px;letter-spacing:.01em}
.rs-btn--primary:hover{background:#3D9B74;transform:translateY(-1px);box-shadow:0 4px 12px rgba(77,171,132,.3);color:#fff}
.rs-btn--dark{background:var(--rs-navy);color:#fff;padding:14px 28px;font-size:14px}
.rs-btn--dark:hover{background:var(--rs-navy-l);transform:translateY(-1px);color:#fff}
.rs-btn--ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.25);padding:13px 26px;font-size:14px}
.rs-btn--ghost:hover{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.08);color:#fff}
.rs-btn--outline{background:transparent;color:var(--rs-navy);border:1.5px solid #d1d5db;padding:13px 26px;font-size:14px}
.rs-btn--outline:hover{border-color:var(--rs-navy);background:var(--rs-navy);color:#fff}
.rs-btn--sm{padding:8px 18px;font-size:13px;border-radius:var(--r-md)}
.rs-btn--lg{padding:16px 36px;font-size:15px;border-radius:var(--r-lg)}

/* ── FORMS ── */
.rs-field{margin-bottom:1.25rem}
.rs-label{display:block;font-size:12.5px;font-weight:600;color:var(--rs-navy);margin-bottom:6px}
.rs-label .req{color:var(--rs-error);margin-left:2px}
.rs-input,.rs-select,.rs-textarea{width:100%;padding:11px 14px;border:1.5px solid #d1d5db;border-radius:var(--r-md);font-size:14px;font-family:var(--font-sans);color:var(--rs-charcoal);background:#fff;transition:all .15s ease;outline:none;appearance:none}
.rs-input:focus,.rs-select:focus,.rs-textarea:focus{border-color:var(--rs-mint);box-shadow:0 0 0 3px rgba(77,171,132,.1)}
.rs-textarea{resize:vertical;min-height:90px}
.rs-select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24'%3E%3Cpath fill='%234B5563' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:36px;cursor:pointer}
.rs-hint{font-size:11.5px;color:var(--rs-gray-l);margin-top:4px}
.rs-error-msg{font-size:11.5px;color:var(--rs-error);margin-top:4px;display:none}
.rs-error-msg.show{display:block}
.rs-row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}

/* ── CARDS ── */
.rs-card{background:#fff;border:1px solid #e5e7eb;border-radius:var(--r-xl);padding:1.5rem 2rem}
.rs-card--lift{transition:all .3s ease}
.rs-card--lift:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#d1d5db}

/* ── BADGES ── */
.rs-badge{display:inline-flex;align-items:center;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:3px 10px;border-radius:12px}
.rs-badge--green{background:rgba(5,150,105,.1);color:#059669}
.rs-badge--gold{background:rgba(201,152,42,.12);color:#92650E}
.rs-badge--blue{background:rgba(37,99,235,.1);color:#2563EB}
.rs-badge--purple{background:rgba(139,84,195,.1);color:#7C3AED}
.rs-badge--red{background:rgba(220,38,38,.1);color:#DC2626}

/* ── PROGRESS ── */
.rs-progress{height:4px;background:#e5e7eb;border-radius:2px;overflow:hidden}
.rs-progress__fill{height:100%;background:var(--rs-mint);border-radius:2px;transition:width .6s ease}

/* ── TOAST ── */
#rs-toast{position:fixed;bottom:2rem;right:2rem;background:var(--rs-navy);color:#fff;padding:14px 20px;border-radius:var(--r-lg);font-size:14px;font-weight:500;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;transform:translateY(100px);opacity:0;transition:all .35s cubic-bezier(.4,0,.2,1);z-index:9999;max-width:360px}
#rs-toast.show{transform:translateY(0);opacity:1}

/* ── WP ALIGNMENTS ── */
.alignleft{float:left;margin:0 1.5rem 1rem 0}
.alignright{float:right;margin:0 0 1rem 1.5rem}
.aligncenter{display:block;margin:0 auto 1.5rem}
.screen-reader-text{position:absolute;clip:rect(1px,1px,1px,1px);overflow:hidden;height:1px;width:1px}

/* ── RESPONSIVE ── */
@media(max-width:768px){
  .rs-wrap{padding:0 1.25rem}
  .rs-section{padding:3rem 0}
  .rs-row-2{grid-template-columns:1fr}
}