/* Premium Bespoke Portfolio Stylesheet — Mobin Samadi Rezaii */
:root {
  --pf-bg: #07090e;
  --pf-surface: #0e131f;
  --pf-surface-hover: #141b2d;
  --pf-surface-subtle: rgba(255, 255, 255, 0.03);
  --pf-border: rgba(255, 255, 255, 0.07);
  --pf-border-accent: rgba(56, 189, 248, 0.35);
  --pf-text-primary: #f8fafc;
  --pf-text-secondary: #94a3b8;
  --pf-text-dim: #64748b;
  --pf-cyan: #38bdf8;
  --pf-emerald: #10b981;
  --pf-indigo: #6366f1;
  --pf-gradient-primary: linear-gradient(135deg, #38bdf8 0%, #6366f1 100%);
  --pf-gradient-emerald: linear-gradient(135deg, #10b981 0%, #0284c7 100%);
  --pf-radius-xl: 20px;
  --pf-radius-lg: 14px;
  --pf-radius-md: 10px;
}

* {
  box-sizing: border-box;
}

body.portfolio-body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-fa), system-ui, -apple-system, sans-serif;
  background-color: var(--pf-bg);
  background-image: 
    radial-gradient(circle at 10% 10%, rgba(56, 189, 248, 0.07) 0px, transparent 45%),
    radial-gradient(circle at 90% 40%, rgba(99, 102, 241, 0.06) 0px, transparent 50%),
    radial-gradient(circle at 50% 90%, rgba(16, 185, 129, 0.05) 0px, transparent 45%);
  background-attachment: fixed;
  color: var(--pf-text-primary);
  min-height: 100vh;
  line-height: 1.7;
  direction: rtl;
  overflow-x: hidden;
}

.portfolio-container {
  max-width: 1020px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

/* Header & Navbar */
.pf-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 56px;
  padding: 16px 20px;
  background: rgba(14, 19, 31, 0.7);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.pf-nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pf-nav-avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--pf-gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: #fff;
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.35);
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.pf-nav-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pf-nav-name {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.3px;
  color: var(--pf-text-primary);
}

.pf-nav-role {
  font-size: 0.75rem;
  color: var(--pf-text-dim);
}

.pf-nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-nav {
  padding: 8px 16px;
  border-radius: 9px;
  font-size: 0.84rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn-nav-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: #cbd5e1;
  border-color: var(--pf-border);
  backdrop-filter: blur(8px);
}

.btn-nav-ghost:hover {
  background: rgba(255, 255, 255, 0.09);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.btn-nav-primary {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.16) 0%, rgba(99, 102, 241, 0.22) 100%);
  color: #7dd3fc;
  border: 1px solid rgba(56, 189, 248, 0.4);
  box-shadow: 0 2px 10px rgba(56, 189, 248, 0.15);
}

.btn-nav-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
  transition: 0.45s ease;
}

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

.btn-nav-primary:hover {
  background: linear-gradient(135deg, #0284c7 0%, #6366f1 100%);
  color: #ffffff;
  border-color: rgba(56, 189, 248, 0.8);
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.45);
  transform: translateY(-2px);
}

/* Hero Section */
.pf-hero {
  margin-bottom: 64px;
  text-align: right;
  position: relative;
}

.pf-hero-top {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: 24px;
}

.pf-hero-avatar-wrapper {
  position: relative;
  flex-shrink: 0;
}

.pf-hero-avatar {
  width: 96px;
  height: 96px;
  border-radius: 28px;
  background: linear-gradient(135deg, #0284c7 0%, #6366f1 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 2rem;
  color: #fff;
  border: 2px solid rgba(56, 189, 248, 0.45);
  box-shadow: 0 0 24px rgba(56, 189, 248, 0.25), 0 8px 24px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pf-hero-avatar:hover {
  transform: scale(1.04);
  box-shadow: 0 0 32px rgba(56, 189, 248, 0.4), 0 12px 28px rgba(0, 0, 0, 0.5);
}

.pf-hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pf-hero-status-beacon {
  position: absolute;
  bottom: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: #10b981;
  border: 2px solid var(--pf-bg);
  border-radius: 50%;
  box-shadow: 0 0 10px #10b981;
}

.pf-hero-intro {
  flex: 1;
}

.pf-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 30px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: #34d399;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.pf-hero-badge span.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.pf-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  margin: 0 0 12px;
  line-height: 1.25;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 40%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.pf-hero-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.35rem);
  font-weight: 600;
  color: var(--pf-cyan);
  margin-bottom: 20px;
  line-height: 1.5;
}

.pf-hero-bio {
  max-width: 820px;
  color: var(--pf-text-secondary);
  font-size: 1.02rem;
  line-height: 1.85;
  margin-bottom: 28px;
}

.pf-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pf-tag {
  background: var(--pf-surface-subtle);
  color: #cbd5e1;
  border: 1px solid var(--pf-border);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  transition: all 0.2s;
}

.pf-tag:hover {
  border-color: var(--pf-border-accent);
  color: #fff;
  background: rgba(56, 189, 248, 0.08);
}

/* Sections */
.pf-section {
  margin-bottom: 64px;
}

.pf-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.pf-section-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--pf-text-primary);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pf-section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--pf-border), transparent);
}

/* Cards */
.pf-card {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-lg);
  padding: 24px;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.pf-card:hover {
  border-color: var(--pf-border-accent);
  background: var(--pf-surface-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -10px rgba(0, 0, 0, 0.5);
}

/* Education Timeline */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.edu-card {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.edu-card-badge {
  align-self: flex-start;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(56, 189, 248, 0.12);
  color: #7dd3fc;
  margin-bottom: 12px;
}

.edu-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--pf-text-primary);
  margin-bottom: 6px;
}

.edu-card-inst {
  font-size: 0.92rem;
  color: var(--pf-cyan);
  font-weight: 600;
  margin-bottom: 12px;
}

.edu-card-period {
  font-size: 0.8rem;
  color: var(--pf-text-dim);
}

/* Enhanced 4-Pillar Skills Grid */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.skill-card {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all 0.25s ease;
}

.skill-card:hover {
  border-color: rgba(99, 102, 241, 0.4);
  background: var(--pf-surface-hover);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.skill-icon-wrapper {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--pf-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.skill-category-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--pf-text-primary);
}

.skill-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skill-list-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--pf-text-secondary);
  line-height: 1.6;
}

.skill-bullet {
  color: var(--pf-cyan);
  font-size: 0.9rem;
  line-height: 1.4;
}

/* Guest Access Token Card */
.guest-access-card {
  background: linear-gradient(135deg, rgba(14, 19, 31, 0.95), rgba(7, 9, 14, 0.98));
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--pf-radius-xl);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  box-shadow: 0 16px 36px -12px rgba(0, 0, 0, 0.6);
}

.guest-access-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0 0 10px;
  color: var(--pf-text-primary);
}

.guest-access-card p {
  font-size: 0.92rem;
  color: var(--pf-text-secondary);
  max-width: 580px;
  margin: 0 auto 24px;
}

.token-form-wrapper {
  max-width: 480px;
  margin: 0 auto;
}

.token-form {
  display: flex;
  gap: 10px;
}

.token-input {
  flex: 1;
  padding: 13px 18px;
  border-radius: var(--pf-radius-md);
  border: 1px solid var(--pf-border);
  background: #06090f;
  color: var(--pf-text-primary);
  font-family: inherit;
  font-size: 1rem;
  direction: ltr;
  text-align: center;
  letter-spacing: 1px;
  transition: all 0.2s;
}

.token-input:focus {
  outline: none;
  border-color: var(--pf-cyan);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.token-btn {
  padding: 13px 28px;
  background: linear-gradient(135deg, #0284c7 0%, #38bdf8 50%, #6366f1 100%);
  background-size: 200% 200%;
  border: none;
  border-radius: var(--pf-radius-md);
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(2, 132, 199, 0.35);
  position: relative;
  overflow: hidden;
}

.token-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: 0.5s ease;
}

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

.token-btn:hover {
  background-position: right center;
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(56, 189, 248, 0.5);
}

.token-btn:active {
  transform: translateY(0);
}

.token-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.token-error-msg {
  color: #f87171;
  font-size: 0.85rem;
  margin-top: 10px;
  display: none;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: var(--pf-text-primary);
  padding: 20px 22px;
  border-radius: var(--pf-radius-lg);
  background: linear-gradient(145deg, rgba(14, 19, 31, 0.95), rgba(10, 14, 23, 0.9));
  border: 1px solid var(--pf-border);
  backdrop-filter: blur(12px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--pf-gradient-primary);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.contact-card:hover {
  border-color: rgba(56, 189, 248, 0.45);
  background: linear-gradient(145deg, rgba(20, 27, 45, 0.95), rgba(14, 19, 31, 0.95));
  transform: translateY(-3px);
  box-shadow: 0 10px 24px -6px rgba(0, 0, 0, 0.5), 0 0 16px rgba(56, 189, 248, 0.15);
}

.contact-card:hover::before {
  opacity: 1;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--pf-cyan);
  transition: all 0.25s ease;
  flex-shrink: 0;
}

.contact-card:hover .contact-icon {
  background: rgba(56, 189, 248, 0.16);
  border-color: rgba(56, 189, 248, 0.5);
  transform: scale(1.05);
}

.contact-info .label {
  font-size: 0.78rem;
  color: var(--pf-text-dim);
  display: block;
  margin-bottom: 2px;
}

.contact-info .value {
  font-size: 0.95rem;
  font-weight: 700;
  direction: ltr;
  text-align: right;
  font-family: monospace;
}

/* Footer */
.pf-footer {
  text-align: center;
  padding-top: 48px;
  margin-top: 80px;
  border-top: 1px solid var(--pf-border);
  color: var(--pf-text-dim);
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .portfolio-container { padding: 20px 14px 60px; }
  .pf-nav { flex-direction: column; gap: 14px; align-items: flex-start; }
  .pf-nav-actions { width: 100%; justify-content: space-between; }
  .edu-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .token-form { flex-direction: column; }
  .token-btn { width: 100%; }
}