/* ═══════════════════════════════════════════════
   Amine Farhat TLIJA — Portfolio
   style.css
═══════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ─── TOKENS ─── */
:root {
  --bg-primary:    #050b18;
  --bg-secondary:  #081225;
  --bg-card:       rgba(8, 20, 48, 0.6);
  --cyan:          #00c8e0;
  --cyan-light:    #4de8ff;
  --blue:          #0055ff;
  --blue-mid:      #0070d8;
  --gradient:      linear-gradient(135deg, #00c8e0, #0055ff);
  --gradient-text: linear-gradient(135deg, #4de8ff 0%, #00c8e0 40%, #0070d8 100%);
  --border:        rgba(0, 200, 224, 0.15);
  --text:          #e8f4ff;
  --text-muted:    rgba(200, 220, 255, 0.55);
  --radius:        16px;
  --shadow:        0 20px 60px rgba(0, 80, 200, 0.2);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ─── CANVAS BACKGROUND ─── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ─── LAYOUT ─── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
section { position: relative; z-index: 1; }

/* ═══ NAV ═══ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background 0.4s, backdrop-filter 0.4s, box-shadow 0.4s;
}
nav.scrolled {
  background: rgba(5, 11, 24, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(0, 200, 224, 0.35));
}
.nav-logo-text {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--cyan); }
.nav-cta {
  background: var(--gradient) !important;
  color: #fff !important;
  padding: 9px 22px;
  border-radius: 50px;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  letter-spacing: 0.04em !important;
  transition: opacity 0.2s, transform 0.2s !important;
}
.nav-cta:hover { opacity: 0.88; transform: translateY(-1px); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ═══ HERO ═══ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 200, 224, 0.08);
  border: 1px solid rgba(0, 200, 224, 0.25);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
}
.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-title span {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
}
.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* Hero visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-logo-wrap {
  position: relative;
  width: 340px;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-logo-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(0, 200, 224, 0.15);
  animation: rotate 20s linear infinite;
}
.hero-logo-ring::after {
  content: '';
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--cyan);
}
.hero-logo-ring-2 {
  position: absolute;
  inset: 30px;
  border-radius: 50%;
  border: 1px solid rgba(0, 85, 255, 0.15);
  animation: rotate 14s linear infinite reverse;
}
.hero-logo-ring-2::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: var(--blue-mid);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--blue-mid);
}
.hero-logo-img {
  position: relative;
  z-index: 2;
  width: 210px;
  height: auto;
  filter: drop-shadow(0 0 40px rgba(0, 200, 224, 0.5));
  animation: float 5s ease-in-out infinite;
}

/* ═══ BUTTONS ═══ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient);
  color: #fff;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 8px 30px rgba(0, 100, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(0, 100, 255, 0.45); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.9rem;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); background: rgba(0,200,224,0.05); }

/* ═══ SECTION HEADER ═══ */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}
.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.section-title span {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-desc {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.75;
}

/* ═══ SERVICES ═══ */
#services { padding: 100px 0; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  cursor: default;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 200, 224, 0.4);
  box-shadow: var(--shadow);
}
.service-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(0,200,224,0.12), rgba(0,85,255,0.12));
  border: 1px solid rgba(0,200,224,0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}
.service-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}
.service-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}
.tag {
  background: rgba(0, 200, 224, 0.07);
  border: 1px solid rgba(0, 200, 224, 0.18);
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: 50px;
}

/* ═══ ABOUT ═══ */
#about {
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(0,20,60,0.5) 50%, transparent);
}
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-text h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.2;
}
.about-text h2 span {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.about-text p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 0.95rem;
}
.about-links {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.about-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.about-link:hover { color: var(--cyan); }
.about-link svg { flex-shrink: 0; }

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.skill-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.skill-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}
.skill-pct {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--cyan);
}
.skill-bar {
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--gradient);
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ═══ PROCESS ═══ */
#process { padding: 100px 0; }
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.3;
}
.step {
  text-align: center;
  padding: 32px 20px;
}
.step-num-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid rgba(0,200,224,0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.step-num-wrap span {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.step-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ═══ CONTACT ═══ */
#contact { padding: 100px 0 120px; }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}
.contact-info h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}
.contact-info h2 span {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.contact-info p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 36px;
}
.contact-items { display: flex; flex-direction: column; gap: 16px; }
.contact-item { display: flex; align-items: center; gap: 14px; }
.contact-item-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0,200,224,0.1), rgba(0,85,255,0.1));
  border: 1px solid rgba(0,200,224,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item-text { font-size: 0.88rem; }
.contact-item-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.contact-item-value {
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}
.contact-item-value:hover { color: var(--cyan); }

/* Form */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}
.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  width: 100%;
}
.form-group select option { background: #081225; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(200,220,255,0.3); }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: rgba(0,200,224,0.5);
  box-shadow: 0 0 0 3px rgba(0,200,224,0.08);
  background: rgba(0,200,224,0.04);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--gradient);
  border: none;
  border-radius: 50px;
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 8px 24px rgba(0,80,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,80,255,0.45); }
.form-submit:active { transform: translateY(0); }
.form-submit:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

.form-notice {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 500;
}
.form-notice.success {
  display: block;
  background: rgba(0, 200, 120, 0.1);
  border: 1px solid rgba(0, 200, 120, 0.3);
  color: #00e090;
}
.form-notice.error {
  display: block;
  background: rgba(255, 80, 80, 0.1);
  border: 1px solid rgba(255, 80, 80, 0.25);
  color: #ff7070;
}

/* ═══ FOOTER ═══ */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copy { font-size: 0.82rem; color: var(--text-muted); }
.footer-copy span { color: var(--cyan); }
.footer-socials { display: flex; gap: 12px; }
.footer-social {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.footer-social:hover { border-color: var(--cyan); color: var(--cyan); background: rgba(0,200,224,0.06); }

/* ═══ SCROLL REVEAL ═══ */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s, transform 0.7s; }
.reveal.visible { opacity: 1; transform: none; }

/* ═══ KEYFRAMES ═══ */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(1.4); }
}
@keyframes rotate { to { transform: rotate(360deg); } }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 960px) {
  .hero-inner              { grid-template-columns: 1fr; text-align: center; }
  .hero-visual             { order: -1; }
  .hero-logo-wrap          { width: 260px; height: 260px; }
  .hero-logo-img           { width: 170px; }
  .hero-subtitle           { max-width: 100%; }
  .hero-actions            { justify-content: center; }
  .hero-stats              { justify-content: center; }
  .services-grid           { grid-template-columns: 1fr 1fr; }
  .about-inner             { grid-template-columns: 1fr; }
  .contact-inner           { grid-template-columns: 1fr; }
  .process-steps           { grid-template-columns: 1fr 1fr; }
  .process-steps::before   { display: none; }
  .nav-links               { display: none; }
  .hamburger               { display: flex; }

  nav.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(5, 11, 24, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    z-index: 99;
  }
}

@media (max-width: 600px) {
  .services-grid      { grid-template-columns: 1fr; }
  .form-row           { grid-template-columns: 1fr; }
  .contact-form-wrap  { padding: 28px 20px; }
  .skills-grid        { grid-template-columns: 1fr; }
  .process-steps      { grid-template-columns: 1fr; }
}