/* ================================================================
   YAMADA YOSHIKAZU — PROFILE LP
   Style: White × Black × Grey + Accent Blue
   ================================================================ */

/* ----------------------------------------------------------------
   1. CSS CUSTOM PROPERTIES (Design Tokens)
---------------------------------------------------------------- */
:root {
  /* Colors */
  --clr-white:       #ffffff;
  --clr-bg:          #f8f9fa;
  --clr-bg-alt:      #f2f4f7;
  --clr-surface:     #ffffff;
  --clr-border:      #e5e7eb;

  --clr-ink-900:     #0d0d0d;
  --clr-ink-700:     #1f2937;
  --clr-ink-500:     #4b5563;
  --clr-ink-300:     #9ca3af;

  --clr-accent:      #1e3a5f;      /* Deep Navy — trust & authority */
  --clr-accent-mid:  #2563eb;      /* Vibrant Blue — CTA & highlights */
  --clr-accent-light:#dbeafe;      /* Soft Blue — background tints */

  --clr-gold:        #b8963e;      /* Gold for MENTA / award badges */
  --clr-success:     #10b981;

  /* Typography */
  --font-sans:  'Noto Sans JP', 'Inter', system-ui, sans-serif;
  --font-en:    'Inter', system-ui, sans-serif;

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

  /* Radius */
  --radius-sm:  0.375rem;
  --radius-md:  0.75rem;
  --radius-lg:  1.25rem;
  --radius-xl:  2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);
  --shadow-lg:  0 10px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.08);
  --shadow-xl:  0 20px 60px rgba(0,0,0,0.15);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;

  /* Layout */
  --container-max:  1160px;
  --container-pad:  clamp(1rem, 5vw, 2.5rem);
  --header-h:       72px;

  /* Section spacing */
  --section-py: clamp(4rem, 8vw, 7rem);
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--clr-ink-700);
  background-color: var(--clr-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol { list-style: none; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover { opacity: 0.8; }

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

/* ----------------------------------------------------------------
   3. UTILITIES
---------------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--section-py);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-accent-mid);
  background: var(--clr-accent-light);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: clamp(var(--text-2xl), 3.5vw, var(--text-4xl));
  font-weight: 700;
  color: var(--clr-ink-900);
  line-height: 1.3;
}

.section-sub {
  margin-top: var(--space-4);
  font-size: var(--text-lg);
  color: var(--clr-ink-500);
  max-width: 600px;
  margin-inline: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.8rem 1.8rem;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 1;
}

.btn--primary {
  background: var(--clr-accent-mid);
  color: var(--clr-white);
  box-shadow: 0 4px 20px rgba(37,99,235,0.35);
}

.btn--primary:hover {
  background: var(--clr-accent);
  box-shadow: 0 6px 28px rgba(37,99,235,0.45);
}

.btn--outline {
  background: transparent;
  color: var(--clr-accent-mid);
  border: 2px solid var(--clr-accent-mid);
}

.btn--outline:hover {
  background: var(--clr-accent-light);
}

.btn--lg {
  padding: 1rem 2.4rem;
  font-size: var(--text-base);
}

/* Animate on scroll */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----------------------------------------------------------------
   4. HEADER & NAV
---------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.07);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav-logo {
  flex-shrink: 0;
  opacity: 1;
}

.logo-img {
  height: 36px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-links a {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--clr-ink-700);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-links a:hover {
  color: var(--clr-accent-mid);
  background: var(--clr-accent-light);
  opacity: 1;
}

.nav-cta {
  background: var(--clr-accent-mid) !important;
  color: var(--clr-white) !important;
  border-radius: var(--radius-full) !important;
  padding: var(--space-2) var(--space-5) !important;
}

.nav-cta:hover {
  background: var(--clr-accent) !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-ink-700);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset-block-start: var(--header-h);
  inset-inline: 0;
  background: var(--clr-white);
  padding: var(--space-6) var(--container-pad);
  z-index: 99;
  border-bottom: 1px solid var(--clr-border);
  box-shadow: var(--shadow-lg);
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--clr-ink-700);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.mobile-link:hover,
.mobile-link:focus {
  background: var(--clr-accent-light);
  color: var(--clr-accent-mid);
  opacity: 1;
}

.mobile-link--cta {
  background: var(--clr-accent-mid);
  color: var(--clr-white) !important;
  text-align: center;
  margin-top: var(--space-2);
}

/* ----------------------------------------------------------------
   5. HERO
---------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  padding-top: calc(var(--header-h) + var(--space-12));
  padding-bottom: 0;
  background: var(--clr-white);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.hero-container {
  flex: 1;
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-16);
  align-items: center;
  padding-bottom: var(--space-12);
}

/* Hero Photo */
.hero-photo-wrap {
  display: flex;
  justify-content: center;
}

.hero-photo-frame {
  position: relative;
  width: clamp(260px, 32vw, 420px);
}

.hero-photo {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 1;
}

/* Decorative ring behind photo */
.hero-photo-frame::before {
  content: '';
  position: absolute;
  inset: -12px;
  border-radius: calc(var(--radius-xl) + 8px);
  background: linear-gradient(135deg, var(--clr-accent-mid), var(--clr-accent));
  z-index: 0;
  opacity: 0.12;
}

.hero-photo-frame::after {
  content: '';
  position: absolute;
  inset: -6px;
  border: 2px solid rgba(37,99,235,0.2);
  border-radius: calc(var(--radius-xl) + 4px);
  z-index: 0;
}

.hero-photo-badge {
  position: absolute;
  bottom: var(--space-4);
  right: calc(-1 * var(--space-4));
  z-index: 2;
  background: var(--clr-white);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--clr-success);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-success);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.5); }
  50%       { box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}

/* Hero Content */
.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.hero-label {
  font-family: var(--font-en);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--clr-accent-mid);
}

.hero-name {
  font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl));
  font-weight: 900;
  color: var(--clr-ink-900);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero-tagline {
  font-size: clamp(var(--text-xl), 2.5vw, var(--text-3xl));
  font-weight: 700;
  color: var(--clr-ink-900);
  line-height: 1.35;
}

.hero-sub {
  font-size: var(--text-base);
  color: var(--clr-ink-500);
  line-height: 1.8;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-5) 0;
  border-block: 1px solid var(--clr-border);
}

.hero-stat {
  text-align: left;
}

.stat-num {
  font-family: var(--font-en);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  font-weight: 800;
  color: var(--clr-accent-mid);
  line-height: 1;
}

.stat-unit {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-ink-500);
}

.stat-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--clr-ink-300);
  margin-top: var(--space-1);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Badge Strip */
.hero-badges {
  position: relative;
  z-index: 1;
  background: var(--clr-accent);
  padding: var(--space-4) var(--container-pad);
  overflow: hidden;
}

.badges-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-4) var(--space-6);
}

.badge-item {
  font-size: var(--text-sm);
  font-weight: 600;
  color: rgba(255,255,255,0.95);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
}

.badge-item i { color: #93c5fd; }

.badge-sep {
  color: rgba(255,255,255,0.25);
  font-size: var(--text-lg);
}

/* ----------------------------------------------------------------
   6. ABOUT SECTION
---------------------------------------------------------------- */
.about {
  background: var(--clr-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.about-text p {
  font-size: var(--text-base);
  color: var(--clr-ink-500);
  line-height: 1.85;
}

.about-text strong {
  color: var(--clr-ink-900);
  font-weight: 700;
}

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.about-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.about-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--clr-accent-mid);
}

.about-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--clr-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  color: var(--clr-accent-mid);
  margin-bottom: var(--space-3);
}

.about-card h3 {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--clr-ink-900);
  margin-bottom: var(--space-2);
}

.about-card p {
  font-size: var(--text-xs);
  color: var(--clr-ink-500);
  line-height: 1.6;
}

/* ----------------------------------------------------------------
   7. STRENGTHS SECTION
---------------------------------------------------------------- */
.strengths {
  background: var(--clr-white);
}

.strengths-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 900px;
  margin-inline: auto;
}

.strength-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-8);
  align-items: start;
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--clr-border);
  position: relative;
}

.strength-item:last-child {
  border-bottom: none;
}

.strength-num {
  font-family: var(--font-en);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900;
  color: var(--clr-accent-light);
  line-height: 1;
  user-select: none;
  transition: color var(--transition-base);
}

.strength-item:hover .strength-num {
  color: var(--clr-accent-mid);
}

.strength-body h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-ink-900);
  margin-bottom: var(--space-3);
  margin-top: var(--space-2);
}

.strength-body p {
  font-size: var(--text-base);
  color: var(--clr-ink-500);
  line-height: 1.8;
}

/* ----------------------------------------------------------------
   8. RESULTS SECTION
---------------------------------------------------------------- */
.results {
  background: var(--clr-bg);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.result-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.result-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.result-card--featured {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--clr-accent) 0%, #1e40af 100%);
  border-color: transparent;
  color: var(--clr-white);
}

.result-card--menta {
  border-color: var(--clr-gold);
  background: linear-gradient(135deg, #fffbeb, #fef3c7);
}

.result-card-inner {
  padding: var(--space-6);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.result-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--clr-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  color: var(--clr-accent-mid);
}

.result-card--featured .result-icon {
  background: rgba(255,255,255,0.15);
  color: var(--clr-white);
}

.result-card--menta .result-icon {
  background: rgba(184,150,62,0.15);
  color: var(--clr-gold);
}

.result-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent-mid);
  background: var(--clr-accent-light);
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  width: fit-content;
}

.result-card--featured .result-tag {
  background: rgba(255,255,255,0.15);
  color: #bfdbfe;
}

.result-card--menta .result-tag {
  background: rgba(184,150,62,0.15);
  color: var(--clr-gold);
}

.result-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--clr-ink-900);
  line-height: 1.35;
}

.result-card--featured .result-title { color: var(--clr-white); }

.result-desc {
  font-size: var(--text-sm);
  color: var(--clr-ink-500);
  line-height: 1.7;
  flex: 1;
}

.result-card--featured .result-desc { color: rgba(255,255,255,0.8); }

.result-metric {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--clr-border);
  margin-top: auto;
}

.result-card--featured .result-metric { border-top-color: rgba(255,255,255,0.15); }
.result-card--menta .result-metric { border-top-color: rgba(184,150,62,0.2); }

.metric-num {
  font-family: var(--font-en);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--clr-accent-mid);
}

.result-card--featured .metric-num { color: #93c5fd; }
.result-card--menta .metric-num { color: var(--clr-gold); }

.metric-label {
  font-size: var(--text-xs);
  color: var(--clr-ink-300);
}

.result-card--featured .metric-label { color: rgba(255,255,255,0.6); }

/* ----------------------------------------------------------------
   9. CAREER SECTION
---------------------------------------------------------------- */
.career {
  background: var(--clr-white);
}

.timeline {
  position: relative;
  max-width: 760px;
  margin-inline: auto;
  padding-left: var(--space-8);
}

/* Vertical line */
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: var(--space-3);
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-accent-mid), var(--clr-border));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-12);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-8) - 6px);
  top: var(--space-3);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--clr-border);
  border: 3px solid var(--clr-white);
  box-shadow: 0 0 0 2px var(--clr-border);
}

.timeline-dot--current {
  background: var(--clr-accent-mid);
  box-shadow: 0 0 0 2px var(--clr-accent-mid), 0 0 0 5px var(--clr-accent-light);
  animation: timeline-pulse 2s infinite;
}

@keyframes timeline-pulse {
  0%, 100% { box-shadow: 0 0 0 2px var(--clr-accent-mid), 0 0 0 5px var(--clr-accent-light); }
  50%       { box-shadow: 0 0 0 2px var(--clr-accent-mid), 0 0 0 9px rgba(37,99,235,0); }
}

.timeline-period {
  font-family: var(--font-en);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--clr-accent-mid);
  display: block;
  margin-bottom: var(--space-2);
}

.timeline-company {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-ink-900);
  margin-bottom: var(--space-1);
}

.timeline-role {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--clr-ink-500);
  margin-bottom: var(--space-3);
}

.timeline-achievements {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.timeline-achievements li {
  font-size: var(--text-sm);
  color: var(--clr-ink-500);
  padding-left: var(--space-4);
  position: relative;
  line-height: 1.6;
}

.timeline-achievements li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--clr-accent-mid);
  font-size: var(--text-xs);
}

/* ----------------------------------------------------------------
   10. SKILLS SECTION
---------------------------------------------------------------- */
.skills {
  background: var(--clr-bg);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.skill-category {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base);
}

.skill-category:hover {
  box-shadow: var(--shadow-md);
}

.skill-cat-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--clr-ink-900);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.skill-cat-title i {
  color: var(--clr-accent-mid);
  width: 20px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-tags li {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--clr-accent-mid);
  background: var(--clr-accent-light);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.skill-tags li:hover {
  background: var(--clr-accent-mid);
  color: var(--clr-white);
}

/* ----------------------------------------------------------------
   11. FOR YOU SECTION
---------------------------------------------------------------- */
.for-you {
  background: var(--clr-white);
}

.challenges-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  max-width: 840px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

.challenge-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: var(--text-sm);
  color: var(--clr-ink-700);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.challenge-item:hover {
  border-color: var(--clr-accent-mid);
  box-shadow: var(--shadow-sm);
}

.challenge-check {
  color: var(--clr-accent-mid);
  font-size: var(--text-lg);
  flex-shrink: 0;
  margin-top: -1px;
}

.for-you-cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.for-you-cta-text {
  font-size: var(--text-base);
  color: var(--clr-ink-500);
  line-height: 1.8;
  max-width: 620px;
}

/* ----------------------------------------------------------------
   12. MESSAGE SECTION
---------------------------------------------------------------- */
.message {
  background: var(--clr-accent);
  color: var(--clr-white);
}

.message .section-label {
  background: rgba(255,255,255,0.12);
  color: #93c5fd;
}

.message-inner {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
}

.message-title {
  font-size: clamp(var(--text-2xl), 3.5vw, var(--text-4xl));
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: var(--space-8);
  line-height: 1.3;
}

.message-quote {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.85);
  line-height: 1.9;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  border-left: 3px solid rgba(255,255,255,0.3);
  padding-left: var(--space-8);
}

.message-quote strong {
  color: var(--clr-white);
  font-weight: 700;
}

.message-quote-footer {
  margin-top: var(--space-4);
}

.message-quote-footer cite {
  font-style: normal;
  font-size: var(--text-sm);
  font-weight: 700;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.05em;
}

/* ----------------------------------------------------------------
   13. CONTACT SECTION
---------------------------------------------------------------- */
.contact {
  background: var(--clr-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.contact-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--clr-accent-mid);
  opacity: 1;
}

.contact-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--clr-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  color: var(--clr-accent-mid);
  margin-bottom: var(--space-2);
}

.contact-card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--clr-ink-900);
}

.contact-card p {
  font-size: var(--text-sm);
  color: var(--clr-ink-500);
}

.contact-card-cta {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--clr-accent-mid);
  margin-top: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ----------------------------------------------------------------
   14. FOOTER
---------------------------------------------------------------- */
.site-footer {
  background: var(--clr-ink-900);
  color: rgba(255,255,255,0.6);
  padding-block: var(--space-12);
}

.footer-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.footer-logo-img {
  height: 32px;
  width: auto;
  opacity: 0.7;
  filter: brightness(0) invert(1);
}

.footer-name {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--clr-white);
}

.footer-desc {
  font-size: var(--text-sm);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-1) var(--space-5);
}

.footer-nav a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--clr-white);
  opacity: 1;
}

.footer-copy {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.3);
  margin-top: var(--space-4);
}

/* ----------------------------------------------------------------
   15. BACK TO TOP
---------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 90;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--clr-accent-mid);
  color: var(--clr-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-base);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--clr-accent);
  opacity: 1;
  transform: translateY(-2px);
}

/* ----------------------------------------------------------------
   16. RESPONSIVE — TABLET (≤1024px)
---------------------------------------------------------------- */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .hero-container {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-10);
  }

  .results-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .result-card--featured {
    grid-column: span 2;
  }

  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ----------------------------------------------------------------
   17. RESPONSIVE — MOBILE (≤768px)
---------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --section-py: clamp(3rem, 6vw, 5rem);
  }

  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .hero-photo-frame {
    width: clamp(200px, 60vw, 300px);
    margin-inline: auto;
  }

  .hero-photo-badge {
    right: auto;
    bottom: var(--space-3);
    left: 50%;
    transform: translateX(-50%);
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-cta {
    justify-content: center;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-cards {
    grid-template-columns: 1fr 1fr;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }

  .result-card--featured {
    grid-column: span 1;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .challenges-list {
    grid-template-columns: 1fr;
  }

  .timeline {
    padding-left: var(--space-6);
  }

  .timeline-dot {
    left: calc(-1 * var(--space-6) - 6px);
  }

  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .badges-inner {
    gap: var(--space-3) var(--space-4);
  }

  .badge-sep { display: none; }

  .message-quote {
    padding-left: var(--space-5);
    font-size: var(--text-base);
  }
}

/* ----------------------------------------------------------------
   18. RESPONSIVE — SMALL MOBILE (≤480px)
---------------------------------------------------------------- */
@media (max-width: 480px) {
  .about-cards {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: var(--space-4);
    flex-wrap: wrap;
  }
}

/* ----------------------------------------------------------------
   19. FOCUS & ACCESSIBILITY
---------------------------------------------------------------- */
:focus-visible {
  outline: 3px solid var(--clr-accent-mid);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}