/* ============================================================
   MOHAMMED DANISH AMBER — Cybersecurity Portfolio
   Design Theme: OBSYRA Labs Concept (Offensive Security)
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Michroma&family=Inter:wght@300;400;500;600;700&display=swap');

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Colors */
  --void-black:       #050505;
  --void-black-2:     #0D0D0D;
  --void-black-3:     #141414;
  --void-black-4:     #1A1A1A;
  --void-black-5:     #222222;
  --titanium-silver:  #E5E5E5;
  --steel-muted:      #888888;
  --steel-dark:       #444444;
  --core-red:         #FF1F1F;
  --core-red-dim:     rgba(255, 31, 31, 0.12);
  --core-red-glow:    rgba(255, 31, 31, 0.35);
  --core-red-dark:    #CC1515;
  --white:            #ffffff;
  --glass-bg:         rgba(10, 10, 10, 0.75);
  --glass-border:     rgba(255, 255, 255, 0.06);
  --glass-border-red: rgba(255, 31, 31, 0.25);

  /* Typography */
  --font-display:   'Rajdhani', 'Michroma', sans-serif;
  --font-tech:      'Michroma', monospace;
  --font-body:      'Inter', sans-serif;

  /* Font Sizes */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;

  /* Spacing */
  --sp-1:   0.25rem;
  --sp-2:   0.5rem;
  --sp-3:   0.75rem;
  --sp-4:   1rem;
  --sp-5:   1.25rem;
  --sp-6:   1.5rem;
  --sp-8:   2rem;
  --sp-10:  2.5rem;
  --sp-12:  3rem;
  --sp-16:  4rem;
  --sp-20:  5rem;
  --sp-24:  6rem;

  /* Border Radius */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast:   0.15s ease;
  --transition-base:   0.3s ease;
  --transition-slow:   0.6s ease;
  --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Shadows */
  --shadow-red:     0 0 30px rgba(255, 31, 31, 0.25);
  --shadow-red-sm:  0 0 12px rgba(255, 31, 31, 0.2);
  --shadow-deep:    0 20px 60px rgba(0, 0, 0, 0.85);
  --shadow-card:    0 8px 32px rgba(0, 0, 0, 0.6);

  /* Z-index layers */
  --z-canvas:  -1;
  --z-base:     1;
  --z-overlay: 10;
  --z-nav:     100;
  --z-modal:   200;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--void-black);
  color: var(--titanium-silver);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { list-style: none; }

img, svg { max-width: 100%; display: block; }

button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--void-black);
}
::-webkit-scrollbar-thumb {
  background: var(--void-black-4);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--core-red);
}

/* ============================================================
   CANVAS BACKDROP
   ============================================================ */
#cyber-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  z-index: var(--z-canvas);
  pointer-events: none;
  opacity: 0.5;
}

/* ============================================================
   TYPOGRAPHY & GLOBAL STYLES
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--white);
  letter-spacing: 0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

.text-red   { color: var(--core-red); }
.text-silver { color: var(--titanium-silver); }
.text-muted  { color: var(--steel-muted); }
.text-white  { color: var(--white); }

.font-tech { font-family: var(--font-tech); letter-spacing: 0.08em; }
.font-display { font-family: var(--font-display); }

.text-center { text-align: center; }
.text-left   { text-align: left; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-tech);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--core-red);
  background: var(--core-red-dim);
  border: 1px solid var(--glass-border-red);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--sp-4);
}

.chip::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--core-red);
  animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--core-red-glow); }
  50% { opacity: 0.4; box-shadow: 0 0 0 6px rgba(255,31,31,0); }
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.section {
  padding: var(--sp-20) 0;
  position: relative;
}

.section-sm {
  padding: var(--sp-12) 0;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.gap-2 { gap: var(--sp-2); }
.gap-4 { gap: var(--sp-4); }
.gap-6 { gap: var(--sp-6); }
.gap-8 { gap: var(--sp-8); }

.mb-2 { margin-bottom: var(--sp-2); }
.mb-3 { margin-bottom: var(--sp-3); }
.mb-4 { margin-bottom: var(--sp-4); }
.mb-6 { margin-bottom: var(--sp-6); }
.mb-8 { margin-bottom: var(--sp-8); }
.mb-12 { margin-bottom: var(--sp-12); }

/* ============================================================
   GLASSMORPHISM & CYBER UTILS
   ============================================================ */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.glass-card:hover {
  border-color: var(--glass-border-red);
  box-shadow: var(--shadow-red);
  transform: translateY(-4px);
}

.glass-card-elevated {
  background: rgba(14, 14, 14, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.glass-red {
  background: linear-gradient(135deg, rgba(255,31,31,0.06), rgba(5,5,5,0.92));
  border: 1px solid var(--glass-border-red);
  border-radius: var(--radius-xl);
}

.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
  margin: var(--sp-8) 0;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  padding: var(--sp-5) 0;
  transition: background var(--transition-base), backdrop-filter var(--transition-base), padding var(--transition-base);
}

.nav.scrolled {
  background: rgba(5, 5, 5, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--sp-3) 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.nav-logo-icon {
  font-family: var(--font-tech);
  color: var(--core-red);
  font-size: 1.4rem;
  font-weight: 700;
  animation: logo-glow 2s infinite alternate;
}

@keyframes logo-glow {
  0% { text-shadow: 0 0 2px rgba(255, 31, 31, 0.4); }
  100% { text-shadow: 0 0 10px rgba(255, 31, 31, 0.8); }
}

.nav-logo-text {
  font-family: var(--font-tech);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.08em;
}

.nav-logo-text span { color: var(--core-red); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

.nav-link {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel-muted);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1.5px;
  background: var(--core-red);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--sp-2);
}

.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--titanium-silver);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-mobile-menu {
  display: none;
  flex-direction: column;
  padding: var(--sp-6);
  gap: var(--sp-4);
  background: rgba(5,5,5,0.98);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.nav-mobile-menu.open { display: flex; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-md);
  padding: var(--sp-3) var(--sp-6);
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--core-red);
  color: var(--white);
  border: 2px solid var(--core-red);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::before { left: 100%; }

.btn-primary:hover {
  background: var(--core-red-dark);
  box-shadow: var(--shadow-red);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--titanium-silver);
  border: 2px solid var(--glass-border);
}

.btn-ghost:hover {
  border-color: var(--core-red);
  color: var(--white);
  box-shadow: var(--shadow-red-sm);
  transform: translateY(-2px);
}

.btn-sm {
  padding: var(--sp-2) var(--sp-4);
  font-size: var(--text-xs);
}

.btn-lg {
  padding: var(--sp-4) var(--sp-8);
  font-size: var(--text-base);
}

.btn-arrow::after {
  content: '→';
  transition: transform var(--transition-base);
}

.btn-arrow:hover::after { transform: translateX(4px); }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--sp-24) 0;
  position: relative;
  overflow: hidden;
}

.hero-grid-line {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,31,31,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,31,31,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black, transparent);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: 25%; left: 50%;
  transform: translateX(-50%);
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255,31,31,0.08), transparent 70%);
  pointer-events: none;
  animation: glow-pulse 5s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.6; transform: translateX(-50%) scale(1); }
  50% { opacity: 0.9; transform: translateX(-50%) scale(1.06); }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-tech);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--core-red);
  margin-bottom: var(--sp-5);
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  color: var(--white);
  margin-bottom: var(--sp-5);
}

.hero-title .highlight {
  color: var(--core-red);
  position: relative;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  color: var(--steel-muted);
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: var(--sp-8);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

/* Profiles/BAS Dashboard */
.bas-dashboard {
  background: rgba(10,10,10,0.92);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--sp-6);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-deep), 0 0 50px rgba(255,31,31,0.06);
  position: relative;
  overflow: hidden;
}

.bas-dashboard::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--core-red), transparent);
}

.bas-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-4);
}

.bas-title {
  font-family: var(--font-tech);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel-muted);
}

.bas-status {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-tech);
  font-size: var(--text-xs);
  color: #22c55e;
}

.bas-status::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse-dot 1.5s infinite;
}

.bas-score-ring {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: var(--sp-2) 0;
}

.bas-metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.bas-metric {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--sp-3);
}

.bas-metric-val {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--white);
}

.bas-metric-val.red { color: var(--core-red); }
.bas-metric-val.green { color: #22c55e; }

.bas-metric-key {
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--steel-muted);
  text-transform: uppercase;
  margin-top: var(--sp-1);
}

.progress-bar-track {
  height: 4px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-full);
  margin-top: var(--sp-2);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--core-red), #ff5f5f);
  animation: progress-fill 2s ease forwards;
}

@keyframes progress-fill {
  from { width: 0; }
}

/* ============================================================
   ABOUT SECTION & IMAGE FRAME SCAN
   ============================================================ */
.profile-image-container {
  position: relative;
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
}

.profile-frame {
  position: relative;
  background: rgba(14, 14, 14, 0.7);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-3);
  box-shadow: var(--shadow-deep);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.profile-frame:hover {
  border-color: var(--core-red-glow);
  box-shadow: var(--shadow-red);
}

.profile-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.profile-img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: grayscale(20%) contrast(110%) brightness(95%);
  transition: filter var(--transition-base), transform var(--transition-base);
  border-radius: var(--radius-lg);
}

.profile-frame:hover .profile-img {
  filter: grayscale(0%) contrast(105%) brightness(100%);
  transform: scale(1.02);
}

/* Vertical Laser Scanner Animation */
.profile-scanner {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--core-red), transparent);
  box-shadow: 0 0 12px 2px var(--core-red);
  pointer-events: none;
  animation: scan-vertical 4s ease-in-out infinite;
  z-index: 2;
}

@keyframes scan-vertical {
  0%, 100% { top: 0%; opacity: 0.1; }
  5%, 95% { opacity: 1; }
  50% { top: 100%; opacity: 1; }
}

/* Tech corners decoration overlay */
.tech-corner {
  position: absolute;
  width: 12px; height: 12px;
  border-color: var(--core-red);
  border-style: solid;
  pointer-events: none;
  z-index: 3;
}
.corner-tl { top: var(--sp-3); left: var(--sp-3); border-width: 2px 0 0 2px; }
.corner-tr { top: var(--sp-3); right: var(--sp-3); border-width: 2px 2px 0 0; }
.corner-bl { bottom: var(--sp-3); left: var(--sp-3); border-width: 0 0 2px 2px; }
.corner-br { bottom: var(--sp-3); right: var(--sp-3); border-width: 0 2px 2px 0; }

/* ============================================================
   EXPERIENCE / CAREER TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: var(--sp-8) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0; left: 50%;
  width: 2px;
  background: linear-gradient(to bottom, transparent 2%, var(--glass-border) 10%, var(--glass-border-red) 50%, var(--glass-border) 90%, transparent 98%);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 var(--sp-8);
  margin-bottom: var(--sp-12);
  box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

/* Timeline dot connector */
.timeline-dot {
  position: absolute;
  top: 24px; left: 50%;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--void-black);
  border: 2px solid var(--glass-border);
  transform: translate(-50%, -50%);
  z-index: 5;
  transition: border-color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
}

.timeline-item:hover .timeline-dot {
  border-color: var(--core-red);
  background: var(--core-red);
  box-shadow: var(--shadow-red-sm);
}

.timeline-card {
  padding: var(--sp-6);
  position: relative;
}

.timeline-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: radial-gradient(circle at top left, rgba(255,31,31,0.04), transparent 70%);
  pointer-events: none;
  border-radius: var(--radius-xl);
}

.timeline-date {
  font-family: var(--font-tech);
  font-size: 10px;
  color: var(--core-red);
  letter-spacing: 0.12em;
  margin-bottom: var(--sp-2);
  display: block;
}

.timeline-title {
  font-size: var(--text-lg);
  margin-bottom: var(--sp-1);
}

.timeline-company {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--white);
  margin-bottom: var(--sp-3);
}

.timeline-desc {
  font-size: var(--text-sm);
  color: var(--steel-muted);
  line-height: 1.6;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
  justify-content: flex-start;
}

.timeline-item:nth-child(odd) .timeline-tags {
  justify-content: flex-end;
}

/* Reusable small tag style */
.tag-sm {
  font-family: var(--font-tech);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel-muted);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 2px 8px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.timeline-card:hover .tag-sm {
  border-color: var(--glass-border-red);
  color: var(--titanium-silver);
}

/* ============================================================
   CYBER TERMINAL (SKILLS)
   ============================================================ */
.terminal-widget {
  background: rgba(8, 8, 8, 0.95);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-deep), 0 0 40px rgba(0,0,0,0.8);
  overflow: hidden;
  font-family: 'Consolas', 'Courier New', monospace;
  position: relative;
  display: flex;
  flex-direction: column;
}

.terminal-header {
  background: rgba(20, 20, 20, 0.9);
  padding: var(--sp-3) var(--sp-5);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-buttons {
  display: flex;
  gap: var(--sp-2);
}

.terminal-btn {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.terminal-btn.red { background: #ff5f56; }
.terminal-btn.yellow { background: #ffbd2e; }
.terminal-btn.green { background: #27c93f; }

.terminal-title-text {
  font-family: var(--font-tech);
  font-size: 10px;
  color: var(--steel-muted);
  letter-spacing: 0.08em;
}

.terminal-body {
  padding: var(--sp-5);
  height: 380px;
  overflow-y: auto;
  color: #38bdf8; /* light cyan */
  font-size: var(--text-sm);
  line-height: 1.6;
}

.terminal-input-line {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
  color: var(--white);
}

.terminal-prompt {
  color: var(--core-red);
}

.terminal-command-typing {
  color: #facc15; /* gold yellow */
  font-weight: bold;
}

.terminal-cursor {
  display: inline-block;
  width: 8px; height: 15px;
  background: var(--core-red);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  from, to { background-color: transparent }
  50% { background-color: var(--core-red) }
}

.terminal-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-5);
}

.term-tab {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--sp-2) var(--sp-4);
  font-family: var(--font-tech);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--steel-muted);
  transition: all var(--transition-base);
  text-transform: uppercase;
}

.term-tab:hover,
.term-tab.active {
  border-color: var(--glass-border-red);
  color: var(--white);
  background: var(--core-red-dim);
  box-shadow: 0 0 10px rgba(255,31,31,0.1);
}

/* Hacking output format styles */
.term-output {
  color: #10b981; /* emerald green */
}
.term-output-error {
  color: var(--core-red);
}
.term-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3) var(--sp-6);
  margin: var(--sp-3) 0 var(--sp-5);
}
.term-item {
  display: flex;
  flex-direction: column;
}
.term-item-title {
  color: var(--white);
  font-weight: bold;
}
.term-item-desc {
  color: var(--steel-muted);
  font-size: 12px;
}

/* ============================================================
   CERTIFICATIONS showcase
   ============================================================ */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--sp-6);
}

.cert-card {
  padding: var(--sp-6);
  position: relative;
  text-align: center;
}

.cert-icon {
  font-size: 2.2rem;
  color: var(--core-red);
  margin-bottom: var(--sp-4);
  animation: glow-soft 3s infinite alternate;
}

@keyframes glow-soft {
  0% { filter: drop-shadow(0 0 2px rgba(255,31,31,0.2)); }
  100% { filter: drop-shadow(0 0 12px rgba(255,31,31,0.6)); }
}

.cert-name {
  font-size: var(--text-lg);
  margin-bottom: var(--sp-2);
}

.cert-issuer {
  font-size: var(--text-xs);
  font-family: var(--font-tech);
  color: var(--steel-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-4);
  display: block;
}

.cert-year-badge {
  font-family: var(--font-tech);
  font-size: 10px;
  color: var(--core-red);
  background: var(--core-red-dim);
  border: 1px solid var(--glass-border-red);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  display: inline-block;
}

/* ============================================================
   CONTACT FORM TERMINAL
   ============================================================ */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
  align-items: start;
}

.contact-terminal-form {
  background: rgba(10, 10, 10, 0.95);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-6);
  box-shadow: var(--shadow-deep);
}

.form-group {
  margin-bottom: var(--sp-5);
}

.form-label {
  display: block;
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel-muted);
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}

.form-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--sp-3) var(--sp-4);
  color: var(--white);
  font-family: inherit;
  font-size: var(--text-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-input:focus {
  outline: none;
  border-color: var(--core-red);
  box-shadow: 0 0 10px rgba(255, 31, 31, 0.15);
  background: rgba(255, 255, 255, 0.04);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

.form-success-alert {
  display: none;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #10b981;
  padding: var(--sp-4);
  border-radius: var(--radius-md);
  margin-top: var(--sp-4);
  font-size: var(--text-sm);
  text-align: center;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--glass-border);
  background: rgba(5, 5, 5, 0.95);
  padding: var(--sp-12) 0;
  font-size: var(--text-sm);
  color: var(--steel-muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-6);
}

.footer-socials {
  display: flex;
  gap: var(--sp-4);
}

.footer-social {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.footer-social:hover {
  border-color: var(--core-red);
  color: var(--white);
  box-shadow: var(--shadow-red-sm);
  transform: translateY(-2px);
}

/* ============================================================
   SCROLL REVEAL (FADE IN UP)
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   GLITCH HEADER EFFECT
   ============================================================ */
.glitch {
  position: relative;
  display: inline-block;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: var(--void-black);
  clip: rect(0, 0, 0, 0);
}

.glitch::before {
  left: 2px;
  text-shadow: -1px 0 #00fffa;
  animation: glitch-anim-1 2s infinite linear alternate-reverse;
}

.glitch::after {
  left: -2px;
  text-shadow: -1px 0 #ff00c1;
  animation: glitch-anim-2 2s infinite linear alternate-reverse;
}

@keyframes glitch-anim-1 {
  0% { clip: rect(10px, 9999px, 80px, 0); }
  5% { clip: rect(50px, 9999px, 120px, 0); }
  10% { clip: rect(30px, 9999px, 60px, 0); }
  15% { clip: rect(80px, 9999px, 10px, 0); }
  20% { clip: rect(20px, 9999px, 110px, 0); }
  25% { clip: rect(90px, 9999px, 50px, 0); }
  30% { clip: rect(60px, 9999px, 100px, 0); }
  35% { clip: rect(40px, 9999px, 30px, 0); }
  40% { clip: rect(110px, 9999px, 70px, 0); }
  45% { clip: rect(10px, 9999px, 40px, 0); }
  50% { clip: rect(70px, 9999px, 90px, 0); }
  55% { clip: rect(120px, 9999px, 20px, 0); }
  60% { clip: rect(50px, 9999px, 110px, 0); }
  65% { clip: rect(30px, 9999px, 60px, 0); }
  70% { clip: rect(90px, 9999px, 80px, 0); }
  75% { clip: rect(20px, 9999px, 40px, 0); }
  80% { clip: rect(100px, 9999px, 120px, 0); }
  85% { clip: rect(10px, 9999px, 70px, 0); }
  90% { clip: rect(60px, 9999px, 20px, 0); }
  95% { clip: rect(40px, 9999px, 90px, 0); }
  100% { clip: rect(110px, 9999px, 50px, 0); }
}

@keyframes glitch-anim-2 {
  0% { clip: rect(70px, 9999px, 110px, 0); }
  5% { clip: rect(20px, 9999px, 60px, 0); }
  10% { clip: rect(90px, 9999px, 120px, 0); }
  15% { clip: rect(40px, 9999px, 10px, 0); }
  20% { clip: rect(10px, 9999px, 70px, 0); }
  25% { clip: rect(80px, 9999px, 30px, 0); }
  30% { clip: rect(110px, 9999px, 50px, 0); }
  35% { clip: rect(60px, 9999px, 90px, 0); }
  40% { clip: rect(30px, 9999px, 120px, 0); }
  45% { clip: rect(100px, 9999px, 40px, 0); }
  50% { clip: rect(10px, 9999px, 80px, 0); }
  55% { clip: rect(50px, 9999px, 60px, 0); }
  60% { clip: rect(120px, 9999px, 110px, 0); }
  65% { clip: rect(40px, 9999px, 20px, 0); }
  70% { clip: rect(90px, 9999px, 70px, 0); }
  75% { clip: rect(30px, 9999px, 100px, 0); }
  80% { clip: rect(10px, 9999px, 50px, 0); }
  85% { clip: rect(80px, 9999px, 120px, 0); }
  90% { clip: rect(60px, 9999px, 30px, 0); }
  95% { clip: rect(110px, 9999px, 80px, 0); }
  100% { clip: rect(20px, 9999px, 90px, 0); }
}

/* ============================================================
   RESPONSIVE DESIGN (BREAKPOINTS)
   ============================================================ */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero { text-align: center; }
  .hero .grid-2 { grid-template-columns: 1fr; gap: var(--sp-12); }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  
  .timeline::before { left: 40px; }
  .timeline-item { width: 100%; padding-left: 80px; padding-right: 0; }
  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) { left: 0; text-align: left; }
  .timeline-dot { left: 40px; }
  .timeline-item:nth-child(odd) .timeline-tags { justify-content: flex-start; }
}

@media (max-width: 768px) {
  .section { padding: var(--sp-12) 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: var(--sp-6); }
  .contact-container { grid-template-columns: 1fr; }
  
  .timeline::before { left: 24px; }
  .timeline-item { padding-left: 56px; }
  .timeline-dot { left: 24px; }
  
  .bas-metric-grid { grid-template-columns: 1fr; }
  .term-grid { grid-template-columns: 1fr; }
}