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

:root {
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-primary: #1a365d;
  --color-primary-light: #2c5282;
  --color-text: #1a202c;
  --color-text-secondary: #4a5568;
  --color-border: #e2e8f0;
  --color-accent: #ebf4ff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --radius: 8px;
  --max-width: 820px;
}

html { font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === Container === */
.container {
  max-width: var(--max-width);
  margin: 2rem auto;
  padding: 0 1.5rem;
}

/* === Header === */
.resume-header {
  background: var(--color-primary);
  color: #fff;
  padding: 2.5rem 2rem;
  border-radius: var(--radius) var(--radius) 0 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.resume-header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.resume-header .title {
  font-size: 1.1rem;
  opacity: 0.9;
  font-weight: 500;
}

.resume-header .location {
  font-size: 0.9rem;
  opacity: 0.75;
  margin-bottom: 0.5rem;
}

.contact-links {
  font-size: 0.875rem;
  opacity: 0.85;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  align-items: center;
}

.contact-links a { color: #bee3f8; text-decoration: none; }
.contact-links a:hover { text-decoration: underline; }
.contact-links .sep { margin: 0 0.35rem; opacity: 0.5; }

.header-actions { flex-shrink: 0; align-self: center; }

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary {
  background: #fff;
  color: var(--color-primary);
}

.btn-primary:hover {
  background: #ebf4ff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* === Sections === */
.section {
  background: var(--color-surface);
  padding: 1.75rem 2rem;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
}

.section:last-of-type {
  border-bottom: 1px solid var(--color-border);
  border-radius: 0 0 var(--radius) var(--radius);
}

.section + .section { border-top: 1px solid var(--color-border); }

.section h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary);
}

.summary-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* === Skills === */
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  background: var(--color-accent);
  color: var(--color-primary-light);
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  font-size: 0.825rem;
  font-weight: 500;
  border: 1px solid #c3dafe;
}

/* === Experience === */
.experience-block { margin-bottom: 1.5rem; }
.experience-block:last-child { margin-bottom: 0; }

.company-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
}

.company-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
}

.duration {
  font-size: 0.825rem;
  color: var(--color-text-secondary);
}

.role { margin-bottom: 0.75rem; padding-left: 1rem; border-left: 2px solid var(--color-border); }

.role-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.role-title { font-weight: 600; font-size: 0.95rem; }
.role-period { font-size: 0.825rem; color: var(--color-text-secondary); white-space: nowrap; }
.role-location { font-size: 0.825rem; color: var(--color-text-secondary); margin-top: 0.1rem; }

.role ul {
  list-style: none;
  margin-top: 0.4rem;
}

.role ul li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.3rem;
  line-height: 1.55;
}

.role ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-primary-light);
  font-weight: bold;
}

/* === Certifications === */
.certs-list { list-style: none; }
.certs-list li {
  padding: 0.3rem 0;
  padding-left: 1rem;
  position: relative;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}
.certs-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #38a169;
  font-weight: bold;
}

/* === Education === */
.education-block { margin-bottom: 0.75rem; }
.education-block:last-child { margin-bottom: 0; }
.education-block h3 { font-size: 0.95rem; font-weight: 600; }
.education-block p { font-size: 0.875rem; color: var(--color-text-secondary); }

/* === Footer === */
footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

/* === Tailor Pages === */
.tailor-container { max-width: 600px; }

.tailor-header {
  text-align: center;
  margin-bottom: 2rem;
}

.tailor-header h1 {
  font-size: 1.75rem;
  color: var(--color-primary);
  font-weight: 700;
}

.tailor-header .subtitle {
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
}

.tailor-form {
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.15s;
  background: var(--color-bg);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(44, 82, 130, 0.1);
}

.form-group textarea { resize: vertical; min-height: 180px; }

.tailor-form .btn-primary {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  background: var(--color-primary);
  color: #fff;
  margin-top: 0.5rem;
}

.tailor-form .btn-primary:hover {
  background: var(--color-primary-light);
}

.tailor-form .btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.back-link {
  display: inline-block;
  margin-top: 1.5rem;
  color: var(--color-primary-light);
  text-decoration: none;
  font-size: 0.9rem;
}

.back-link:hover { text-decoration: underline; }

.alert {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.alert-error {
  background: #fff5f5;
  color: #c53030;
  border: 1px solid #feb2b2;
}

/* === Spinner === */
.spinner {
  text-align: center;
  padding: 1.5rem 0;
}

.spinner.hidden { display: none; }

.spinner-ring {
  width: 40px;
  height: 40px;
  margin: 0 auto 0.75rem;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.spinner p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* === Responsive === */
@media (max-width: 640px) {
  .container { margin: 1rem auto; padding: 0 1rem; }
  .resume-header { padding: 1.75rem 1.25rem; flex-direction: column; }
  .header-actions { align-self: stretch; }
  .header-actions .btn { width: 100%; text-align: center; }
  .section { padding: 1.25rem; }
  .company-header { flex-direction: column; gap: 0.15rem; }
  .role-header { flex-direction: column; gap: 0.15rem; }
}