/* =========================================================
   Dr BennyT – Design System
   Premium dark-first aesthetic, Inter + JetBrains Mono
   ========================================================= */

/* ---------------------------------------------------------
   Google Fonts – preconnect for performance
   --------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

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

/* ---------------------------------------------------------
   1. CSS Custom Properties (Design Tokens)
   --------------------------------------------------------- */
:root {
  /* Background scale */
  --bg-base:       #0a0a0a;
  --bg-surface:    #111111;
  --bg-elevated:   #1a1a1a;
  --bg-overlay:    #242424;

  /* Text scale */
  --text-primary:  #f0f0f0;
  --text-secondary:#b0b0b0;
  --text-muted:    #707070;
  --text-disabled: #404040;

  /* Accent */
  --accent:        #4f86f7;
  --accent-hover:  #6b9cf8;
  --accent-subtle: rgba(79, 134, 247, 0.12);
  --accent-glow:   rgba(79, 134, 247, 0.25);

  /* Semantic */
  --color-success: #22c55e;
  --color-error:   #ef4444;
  --color-warning: #f59e0b;

  /* Border */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-default:rgba(255, 255, 255, 0.14);
  --border-strong: rgba(255, 255, 255, 0.24);

  /* Spacing scale (4px base) */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Border radius */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-pill:9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.5), 0 2px 4px rgba(0,0,0,0.4);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.6), 0 4px 8px rgba(0,0,0,0.5);
  --shadow-glow:0 0 24px var(--accent-glow);

  /* Typography */
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Transition */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:    cubic-bezier(0.4, 0, 1, 1);
  --dur-fast:   150ms;
  --dur-normal: 280ms;
  --dur-slow:   450ms;

  /* Max content widths */
  --max-prose:  68ch;
  --max-content:1160px;
}

/* ---------------------------------------------------------
   2. Base Reset / Global Defaults
   --------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---------------------------------------------------------
   3. Typography Scale
   --------------------------------------------------------- */

/* Display – hero-tier text */
.ds-display {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--text-primary);
}

/* Headings */
.ds-h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
}
.ds-h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.ds-h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
}
.ds-h4 {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.4;
}

/* Body */
.ds-body-lg { font-size: 1.125rem; line-height: 1.7; }
.ds-body    { font-size: 1rem;     line-height: 1.65; }
.ds-body-sm { font-size: 0.875rem; line-height: 1.6; }

/* Small / Labels */
.ds-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Code / Technical accent */
.ds-mono {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
}

/* Accent span for partial heading colour */
.ds-accent { color: var(--accent); }

/* ---------------------------------------------------------
   4. Layout Utilities
   --------------------------------------------------------- */
.ds-container {
  width: 100%;
  max-width: var(--max-content);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.ds-section {
  padding-block: var(--space-20);
}

.ds-section--sm {
  padding-block: var(--space-12);
}

/* ---------------------------------------------------------
   5. Button System
   --------------------------------------------------------- */
.ds-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-6);
  cursor: pointer;
  transition: background var(--dur-normal) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease-out);
  min-height: 48px; /* Accessibility tap target */
}

/* Primary */
.ds-btn--primary {
  background: var(--accent);
  color: #fff;
}
.ds-btn--primary:hover,
.ds-btn--primary:focus-visible {
  background: var(--accent-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}
.ds-btn--primary:active {
  transform: translateY(0);
}

/* Outlined / Secondary */
.ds-btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}
.ds-btn--outline:hover,
.ds-btn--outline:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-subtle);
}

/* Ghost */
.ds-btn--ghost {
  background: transparent;
  color: var(--text-secondary);
}
.ds-btn--ghost:hover,
.ds-btn--ghost:focus-visible {
  color: var(--text-primary);
  background: var(--bg-overlay);
}

/* ---------------------------------------------------------
   6. Card System
   --------------------------------------------------------- */
.ds-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--dur-normal) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease-out),
              transform var(--dur-normal) var(--ease-out);
}
.ds-card:hover {
  border-color: var(--border-default);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.ds-card__body {
  padding: var(--space-6);
}

.ds-card__header {
  padding: var(--space-6) var(--space-6) 0;
}

/* Tech badge used on project cards */
.ds-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid rgba(79, 134, 247, 0.2);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  white-space: nowrap;
}

/* ---------------------------------------------------------
   7. Form System
   --------------------------------------------------------- */
.ds-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.ds-label-text {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.ds-input,
.ds-textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  transition: border-color var(--dur-normal) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease-out);
  outline: none;
  min-height: 48px; /* Accessibility */
}

.ds-textarea {
  min-height: 140px;
  resize: vertical;
}

.ds-input::placeholder,
.ds-textarea::placeholder {
  color: var(--text-disabled);
}

.ds-input:hover,
.ds-textarea:hover {
  border-color: var(--border-strong);
}

.ds-input:focus,
.ds-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.ds-input.error,
.ds-textarea.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.ds-field-error {
  font-size: 0.8125rem;
  color: var(--color-error);
}

/* ---------------------------------------------------------
   8. Global Accessibility: Focus Visible
   --------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Remove focus ring for mouse users */
:focus:not(:focus-visible) {
  outline: none;
}

/* ---------------------------------------------------------
   9. Credibility / Stats Strip
   --------------------------------------------------------- */
.ds-stats-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  align-items: center;
  justify-content: center;
  padding: var(--space-8) 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.ds-stat {
  text-align: center;
}

.ds-stat__number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--accent);
  line-height: 1;
}

.ds-stat__label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: var(--space-1);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

/* ---------------------------------------------------------
   10. Section Title Overrides (replaces template style)
   --------------------------------------------------------- */
.ds-page-title {
  margin-bottom: var(--space-12);
}

.ds-page-title h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.ds-page-title h1 span {
  color: var(--accent);
}

/* ---------------------------------------------------------
   11. Navigation Accessibility Enhancements
   --------------------------------------------------------- */
.header .icon-menu li a,
.header #menu a {
  transition: color var(--dur-fast) var(--ease-out);
}

.header .icon-menu li a:focus-visible,
.header #menu a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Mobile menu toggle improved tap target */
#menuToggle input[type="checkbox"] {
  width: 44px;
  height: 44px;
}

/* ---------------------------------------------------------
   12. Utility Classes
   --------------------------------------------------------- */
.ds-text-accent   { color: var(--accent); }
.ds-text-muted    { color: var(--text-muted); }
.ds-text-secondary{ color: var(--text-secondary); }

.ds-flex         { display: flex; }
.ds-flex-center  { display: flex; align-items: center; justify-content: center; }
.ds-flex-between { display: flex; align-items: center; justify-content: space-between; }
.ds-flex-gap-2   { gap: var(--space-2); }
.ds-flex-gap-4   { gap: var(--space-4); }
.ds-flex-gap-6   { gap: var(--space-6); }

.ds-mt-4  { margin-top: var(--space-4); }
.ds-mt-6  { margin-top: var(--space-6); }
.ds-mt-8  { margin-top: var(--space-8); }
.ds-mt-12 { margin-top: var(--space-12); }
.ds-mb-4  { margin-bottom: var(--space-4); }
.ds-mb-6  { margin-bottom: var(--space-6); }
.ds-mb-8  { margin-bottom: var(--space-8); }

.ds-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* --- Toast Notification System --- */
.ds-toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.ds-toast {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 320px;
  max-width: 450px;
  transform: translateY(1.5rem);
  opacity: 0;
  transition: transform var(--dur-normal) var(--ease-out), 
              opacity var(--dur-normal) var(--ease-out);
  pointer-events: all;
  border-left: 4px solid var(--accent);
}

.ds-toast.show {
  transform: translateY(0);
  opacity: 1;
}

.ds-toast--success { border-left-color: var(--color-success); }
.ds-toast--error   { border-left-color: var(--color-error); }
.ds-toast--info    { border-left-color: var(--accent); }

.ds-toast i {
  font-size: 1.125rem;
}

.ds-toast__content {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
}

@media (max-width: 576px) {
  .ds-toast-container {
    left: 1rem;
    right: 1rem;
    bottom: 1.5rem;
  }
  .ds-toast {
    min-width: 0;
    width: 100%;
  }
}

/* --- Email/Content Reveal Button --- */
.ds-reveal-btn {
  background: none;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
  vertical-align: middle;
  text-transform: uppercase;
}

.ds-reveal-btn:hover,
.ds-reveal-btn:focus-visible {
  background: var(--accent-subtle);
  color: var(--accent);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --- Hero Typography Refinement --- */
.hero-heading {
  font-family: var(--font-sans);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  line-height: 1.1;
  padding-left: 0 !important; /* Overriding template's 70px indent if it exists */
}

.hero-heading::before {
  display: none !important; /* Hiding the bulky green line dash from template */
}

.hero-name {
  display: block;
  color: #28a745; /* Preserving user's preferred green */
  font-size: clamp(2.5rem, 8vw, 4.2rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.hero-title {
  display: block;
  color: var(--text-primary);
  font-size: clamp(1.1rem, 3.5vw, 2.1rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  margin-top: var(--space-2);
  line-height: 1.25;
  opacity: 0.9;
}

/* Hero Badge */
.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid rgba(79, 134, 247, 0.2);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Hero CTAs */
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: 1.75rem;
  align-items: center;
}

@media (max-width: 576px) {
  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .hero-ctas .button {
    width: 100%;
    text-align: left;
    display: flex;
    justify-content: space-between;
    padding-left: 24px;
    padding-right: 64px; /* Space for the icon */
    align-items: center;
  }
}

/* Adjusting the mobile/tablet spacing for hero */
@media (max-width: 991px) {
  .hero-heading {
    padding-left: 0 !important;
    margin-top: 1rem;
  }
  .hero-name {
    font-size: clamp(2.6rem, 10vw, 3.8rem); /* Slightly larger scaling on mobile */
  }
}

/* Extra spacing for small mobile screens (under 576px) where the image is hidden */
@media (max-width: 575px) {
  .home .home-details > div {
    margin-top: 15vh; /* Pushes content down on small screens for better UX */
  }
}

/* Remove redundant + sign on about stats */
.about .box-stats h3:after {
  content: none !important;
  display: none !important;
}

/* Hover/Click Email Reveal */
.ds-email-reveal {
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: all var(--dur-fast) var(--ease-out);
  border: 1px dotted var(--border-strong);
  display: inline-block;
}

.ds-email-reveal:hover,
.ds-email-reveal:active,
.ds-email-reveal:focus-visible {
  background: var(--accent-subtle);
  border-color: var(--accent);
  color: var(--accent);
}

/* Skills Circle Progress Animation */
.c100 .bar, 
.c100 .fill {
  transition: all 1.8s cubic-bezier(0.2, 0.8, 0.2, 1) !important;
  -webkit-transition: all 1.8s cubic-bezier(0.2, 0.8, 0.2, 1) !important;
}

/* Premium About CTAs */
.about-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

@media (max-width: 576px) {
  .about-ctas {
    flex-direction: column;
    margin-top: 2.5rem;
    gap: 0.75rem;
    /* Create a polished, mobile-focused floating-style layout */
  }
  
  .about-ctas .button {
    width: 100%;
    margin: 0;
    justify-content: space-between;
    padding-left: 1.5rem;
    padding-right: 4.5rem; /* space for the absolute icon */
    background: rgba(30, 30, 30, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  }

  /* Make the primary button stand out more */
  .about-ctas .button:first-child {
    background: linear-gradient(135deg, rgba(40,167,69,0.15) 0%, rgba(30,30,30,0.8) 100%);
    border-color: rgba(40, 167, 69, 0.3) !important;
  }

  /* Asymmetrical secondary button styling */
  .about-ctas .button:last-child {
    width: 85%;
    align-self: flex-end;
  }
  
  .about-ctas .button .button-text {
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    font-weight: 600;
  }
}

/* -------------------------------------
   Unifying Blog Link Colors (Green vs Blue)
   ------------------------------------- */
.entry-header h2 a, 
.post-content a,
.blog-excerpt a {
  color: var(--accent);
  text-decoration: none;
  transition: all var(--dur-fast) var(--ease-out);
}

.entry-header h2 a:hover, 
.post-content a:hover,
.blog-excerpt a:hover {
  color: var(--accent-strong);
}