/* ============================================
   FRAN DOMÍNGUEZ — Personal Portfolio
   Inspired by nickvelten.nl concept
   ============================================ */

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

:root {
    --dark:    #0d0d0d;
    --gray:    #141414;
    --cream:   #ede8de;
    --light:   #f5f0e8;
    --accent:  #1a5cff;
    --accent-dark: #0040cc;

    --text-dark:   #0d0d0d;
    --text-light:  #f0ece3;
    --text-muted:  #666;
    --text-muted-light: rgba(240,236,227,0.5);

    --title-size: clamp(3.2rem, 8vw, 7.5rem);
    --h2-size:    clamp(2.4rem, 5.5vw, 5rem);
    --base-font:  clamp(1rem, 1.2vw, 1.125rem);

    --radius: 0.375rem;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: var(--base-font);
    line-height: 1.65;
    background: var(--dark);
    color: var(--text-light);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

::-webkit-scrollbar { display: none; }
* { scrollbar-width: none; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 3rem;
}

section {
    padding: 6rem 0;
}

/* ============================================
   NAVIGATION
   ============================================ */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition), backdrop-filter var(--transition);
}

nav.scrolled {
    background: rgba(13, 13, 13, 0.94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.nav-logo {
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--text-light);
    opacity: 0.9;
    transition: opacity var(--transition);
}
.nav-logo:hover { opacity: 1; }

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.875rem;
    letter-spacing: 0.04em;
    color: var(--text-light);
    opacity: 0.65;
    transition: opacity var(--transition);
}
.nav-links a:hover { opacity: 1; }

.nav-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-light);
    transition: transform var(--transition), opacity var(--transition);
}
.nav-menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-menu-btn.open span:nth-child(2) { opacity: 0; }
.nav-menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--dark);
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-100%);
    transition: transform 0.4s cubic-bezier(0.76, 0, 0.24, 1);
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu ul { display: flex; flex-direction: column; gap: 1.5rem; text-align: center; }
.mobile-menu a {
    font-size: clamp(1.8rem, 6vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-light);
    opacity: 0.8;
    transition: opacity var(--transition);
}
.mobile-menu a:hover { opacity: 1; }

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--accent);
    color: #fff;
    padding: 0.85rem 2rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-light);
    padding: 0.85rem 2rem;
    border-radius: var(--radius);
    border: 1px solid rgba(240,236,227,0.2);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: border-color var(--transition), background var(--transition);
}
.btn-ghost:hover {
    border-color: rgba(240,236,227,0.5);
    background: rgba(240,236,227,0.05);
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: rgba(240,236,227,0.65);
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius);
    border: 1px solid rgba(240,236,227,0.15);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: color var(--transition), border-color var(--transition);
}
.btn-download:hover {
    color: var(--text-light);
    border-color: rgba(240,236,227,0.4);
}

.btn-ghost-light {
    display: inline-flex;
    align-items: center;
    color: var(--text-light);
    opacity: 0.6;
    font-size: 0.875rem;
    letter-spacing: 0.04em;
    transition: opacity var(--transition);
}
.btn-ghost-light:hover { opacity: 1; }

/* ============================================
   SECTION LABELS & HEADERS
   ============================================ */
.section-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-muted-light);
    margin-bottom: 1.25rem;
}

[data-theme="light"] .section-label,
[data-theme="cream"] .section-label {
    color: rgba(0,0,0,0.35);
}

.section-header {
    margin-bottom: 4rem;
}

.section-header h2,
.section-header h2 {
    font-size: var(--h2-size);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--text-light);
}

[data-theme="light"] .section-header h2,
[data-theme="cream"] .section-header h2 {
    color: var(--text-dark);
}

[data-theme="accent"] .section-header h2 {
    color: #fff;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-up {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   SECTION INTRO TEXT
   ============================================ */
.section-intro {
    margin-top: 1rem;
    font-size: clamp(0.95rem, 1.1vw, 1.05rem);
    color: var(--text-muted-light);
    max-width: 560px;
    line-height: 1.65;
}
[data-theme="light"] .section-intro,
[data-theme="cream"] .section-intro {
    color: #666;
}

/* ============================================
   HERO
   ============================================ */
#hero {
    min-height: 100svh;
    background: var(--dark);
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    padding: 8rem 3rem 5rem;
    max-width: 1240px;
    margin: 0 auto;
    overflow-x: clip;
}

.hero-kicker {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.25rem;
    opacity: 0.9;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.hero-tag {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(240,236,227,0.55);
    border: 1px solid rgba(240,236,227,0.15);
    padding: 0.35rem 0.9rem;
    border-radius: 2rem;
}

.hero-title {
    font-size: var(--title-size);
    font-weight: 900;
    line-height: 0.92;
    letter-spacing: -0.04em;
    color: var(--text-light);
    margin-bottom: 1.75rem;
    display: flex;
    flex-direction: column;
}

.hero-title .line {
    display: block;
}

.hero-title em {
    font-style: normal;
    color: var(--accent);
}

.hero-tagline {
    font-size: clamp(1rem, 1.4vw, 1.2rem);
    color: rgba(240,236,227,0.55);
    line-height: 1.55;
    max-width: 440px;
    margin-bottom: 1rem;
}

.hero-sub {
    font-size: clamp(0.88rem, 1vw, 0.95rem);
    color: rgba(240,236,227,0.4);
    line-height: 1.55;
    max-width: 420px;
    margin-bottom: 0;
    font-style: italic;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2.75rem;
    margin-bottom: 3rem;
}

.btn-accent-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent);
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius);
    border: 1.5px solid var(--accent);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: background var(--transition), color var(--transition);
}
.btn-accent-outline:hover {
    background: var(--accent);
    color: #fff;
}

.hero-location {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.03em;
}

.hero-image {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.hero-img-wrap {
    position: relative;
    width: 100%;
    max-width: 420px;
}

.hero-img-wrap::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--accent) 0%, transparent 60%);
    border-radius: calc(var(--radius) + 2px);
    opacity: 0.3;
    z-index: 0;
}

.hero-img-wrap img {
    position: relative;
    z-index: 1;
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    object-position: center top;
    border-radius: var(--radius);
    filter: grayscale(15%) contrast(1.05);
    background: #1a1a1a;
}

/* ============================================
   ABOUT
   ============================================ */
#about {
    background: var(--light);
    color: var(--text-dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 6rem;
    align-items: start;
}

.about-left { position: sticky; top: 6rem; }

.about-heading {
    font-size: var(--h2-size);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--text-dark);
}

.about-body p {
    font-size: clamp(1rem, 1.25vw, 1.15rem);
    line-height: 1.75;
    color: #3a3a3a;
    margin-bottom: 1.5rem;
}

.about-pillars {
    margin-top: 2.5rem;
    display: grid;
    gap: 0;
}

.pillar {
    border-top: 1px solid rgba(0,0,0,0.12);
    padding: 1.25rem 0;
}
.pillar:last-child { border-bottom: 1px solid rgba(0,0,0,0.12); }

.pillar strong {
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.35rem;
}

.pillar p {
    font-size: 0.92rem !important;
    color: #666 !important;
    margin-bottom: 0 !important;
    line-height: 1.5 !important;
}

/* ============================================
   TRACK RECORD
   ============================================ */
#track-record {
    background: var(--dark);
    color: var(--text-light);
}

.track-items {
    border-top: 1px solid rgba(240,236,227,0.1);
}

.track-item {
    display: grid;
    grid-template-columns: 220px 1fr 160px;
    gap: 3rem;
    padding: 2.5rem 0;
    border-bottom: 1px solid rgba(240,236,227,0.08);
    align-items: start;
    transition: opacity var(--transition);
}
.track-item:hover { opacity: 0.8; }

.track-company {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 0.25rem;
}

.track-role {
    font-size: 0.82rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    margin-bottom: 0.75rem;
}

.track-badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 0.2rem 0.6rem;
    border-radius: 2rem;
}

.track-middle p {
    font-size: 0.9rem;
    color: rgba(240,236,227,0.6);
    line-height: 1.65;
    margin-bottom: 1rem;
}

.track-clients {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.track-clients span {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: rgba(240,236,227,0.4);
    border: 1px solid rgba(240,236,227,0.12);
    padding: 0.2rem 0.65rem;
    border-radius: 2rem;
}

.track-right {
    text-align: right;
}

.track-period {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.03em;
    margin-bottom: 0.25rem;
}

.track-location {
    font-size: 0.78rem;
    color: rgba(240,236,227,0.3);
}

/* ============================================
   ACHIEVEMENTS
   ============================================ */
#achievements {
    background: var(--accent);
    color: #fff;
}

#achievements .section-label { color: rgba(255,255,255,0.65); }

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}

.achievement-item {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding: 2rem 2rem 2rem 0;
}

.achievement-item:nth-child(n+4) {
    border-bottom: none;
}

.achievement-number {
    font-size: clamp(2.8rem, 5vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: 0.6rem;
}

.achievement-label {
    font-size: 0.85rem;
    opacity: 0.75;
    line-height: 1.4;
    max-width: 200px;
}

/* ============================================
   EXPERTISE
   ============================================ */
#expertise {
    background: var(--cream);
    color: var(--text-dark);
}

.expertise-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
    margin-top: 4rem;
}

.expertise-col h3 {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0,0,0,0.12);
}

.expertise-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.expertise-col li {
    font-size: 0.9rem;
    color: #444;
    padding-left: 1rem;
    position: relative;
}

.expertise-col li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: rgba(26,92,255,0.5);
    font-size: 0.75rem;
    top: 0.05em;
}


/* ============================================
   CASOS (Selected Cases) — sección destacada
   ============================================ */
#casos {
    background: var(--light);
    color: var(--text-dark);
    padding: 9rem 0;
    border-top: 3px solid var(--accent);
}

#casos .section-label { color: rgba(0,0,0,0.35); }

#casos .section-header {
    margin-bottom: 4.5rem;
}

#casos .section-header h2 {
    font-size: clamp(3.2rem, 7vw, 6.5rem);
    color: var(--text-dark);
}

#casos .section-intro { color: #555; font-size: clamp(1rem, 1.25vw, 1.1rem); }

.casos-cta {
    margin-top: 4rem;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.casos-cta p {
    font-size: clamp(1.05rem, 1.5vw, 1.3rem);
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    max-width: 480px;
    line-height: 1.35;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 0.5rem;
}

.case-card {
    position: relative;
    overflow: hidden;
    background: var(--dark);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 0.75rem;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 0;
    transition: border-color var(--transition), transform var(--transition);
}
.case-card:hover {
    border-color: rgba(26,92,255,0.45);
    transform: translateY(-4px);
}

.case-tag {
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}

.case-headline {
    font-size: clamp(1.1rem, 1.5vw, 1.3rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.025em;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.case-body-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.case-col {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.case-col-label {
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(240,236,227,0.28);
}

.case-col p {
    font-size: 0.85rem;
    color: rgba(240,236,227,0.6);
    line-height: 1.6;
    margin: 0;
}

.case-principle {
    font-size: 0.875rem;
    font-style: italic;
    color: var(--text-light);
    line-height: 1.55;
    border-left: 2px solid var(--accent);
    padding: 0.75rem 1rem;
    background: rgba(26,92,255,0.08);
    border-radius: 0 0.375rem 0.375rem 0;
    opacity: 0.95;
    margin-top: auto;
}

.case-bg-num {
    position: absolute;
    bottom: -2rem;
    right: 1rem;
    font-size: 9rem;
    font-weight: 900;
    line-height: 1;
    color: rgba(255,255,255,0.03);
    pointer-events: none;
    letter-spacing: -0.05em;
    user-select: none;
}

/* ============================================
   SECTORES
   ============================================ */
#sectores {
    background: var(--dark);
    color: var(--text-light);
}

.sectors-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 6rem;
    align-items: start;
    margin-top: 1rem;
}

.sectors-intro {
    position: sticky;
    top: 6rem;
}

.sectors-intro p {
    font-size: clamp(1rem, 1.2vw, 1.1rem);
    color: rgba(240,236,227,0.6);
    line-height: 1.7;
}

.sectors-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.sector-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 0.5rem;
    padding: 2rem;
    transition: border-color var(--transition), background var(--transition);
}
.sector-card:hover {
    border-color: rgba(26,92,255,0.4);
    background: rgba(26,92,255,0.06);
}

.sector-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(26,92,255,0.12);
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.sector-norm {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(240,236,227,0.3);
    margin-bottom: 0.6rem;
}

.sector-card h3 {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 0.75rem;
    color: var(--text-light);
    line-height: 1.25;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sector-card p {
    font-size: 0.85rem;
    color: rgba(240,236,227,0.5);
    line-height: 1.65;
    margin-top: 0.75rem;
}

/* ============================================
   BLOG
   ============================================ */
#blog {
    background: var(--gray);
    color: var(--text-light);
}

.blog-list {
    border-top: 1px solid rgba(240,236,227,0.1);
    margin-bottom: 3rem;
}

.blog-item {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid rgba(240,236,227,0.08);
    transition: opacity var(--transition);
}
.blog-item:hover { opacity: 0.7; }

.blog-cats {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.blog-desc {
    font-size: 0.85rem;
    color: rgba(240,236,227,0.4);
    margin-top: 0.4rem;
    line-height: 1.55;
}

.blog-title {
    font-size: clamp(1.1rem, 1.8vw, 1.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-light);
    line-height: 1.2;
}

.blog-arrow {
    color: var(--text-muted);
    transition: transform var(--transition), color var(--transition);
    flex-shrink: 0;
}

.blog-item:hover .blog-arrow {
    transform: translate(4px, -4px);
    color: var(--accent);
}

.blog-cta {
    text-align: center;
}

/* ============================================
   EDUCATION
   ============================================ */
#education {
    background: var(--gray);
    color: var(--text-light);
}

.edu-grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 6rem;
    align-items: start;
}

.edu-left h2 {
    font-size: var(--h2-size);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    position: sticky;
    top: 6rem;
}

.edu-right {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.edu-item {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 2rem;
    padding: 2rem 0;
    border-top: 1px solid rgba(240,236,227,0.1);
    align-items: start;
}
.edu-item:last-child { border-bottom: 1px solid rgba(240,236,227,0.1); }

.edu-year {
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 0.03em;
    padding-top: 0.15rem;
}

.edu-degree {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: 0.4rem;
}

.edu-school {
    font-size: 0.85rem;
    color: var(--accent);
    opacity: 0.85;
}

/* ============================================
   CONTACT
   ============================================ */
#contact {
    background: var(--dark);
    color: var(--text-light);
    min-height: 65vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#contact .container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.contact-heading {
    font-size: clamp(2.2rem, 5.5vw, 5rem);
    font-weight: 900;
    line-height: 0.92;
    letter-spacing: -0.04em;
    word-break: break-word;
    overflow-wrap: break-word;
}

.contact-note {
    margin-top: 2.5rem;
    font-size: 0.82rem;
    color: rgba(240,236,227,0.3);
    letter-spacing: 0.03em;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(240,236,227,0.08);
    display: inline-block;
}

.contact-heading a {
    transition: color var(--transition);
}
.contact-heading a:hover { color: var(--accent); }

.contact-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    border-top: 1px solid rgba(240,236,227,0.1);
    padding-top: 2rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    letter-spacing: 0.04em;
    transition: color var(--transition);
}
.contact-link:hover { color: var(--text-light); }

/* ============================================
   FOOTER
   ============================================ */
footer {
    background: var(--dark);
    border-top: 1px solid rgba(240,236,227,0.06);
    padding: 2rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

footer p {
    font-size: 0.78rem;
    color: rgba(240,236,227,0.3);
    letter-spacing: 0.02em;
}

/* ============================================
   RESPONSIVE — LARGE TABLET (≤1100px)
   ============================================ */
@media (max-width: 1100px) {
    .nav-links { gap: 1.75rem; }
    .nav-links a { font-size: 0.8rem; }

    .container { padding: 0 2rem; }

    #hero {
        gap: 3rem;
        padding: 8rem 2rem 5rem;
    }

    .track-item {
        grid-template-columns: 180px 1fr 130px;
        gap: 2rem;
    }
}

/* ============================================
   RESPONSIVE — TABLET (≤900px)
   ============================================ */
@media (max-width: 900px) {
    /* Nav */
    nav { padding: 1.25rem 1.5rem; }
    .nav-links { display: none; }
    .nav-menu-btn { display: flex; }

    /* Layout base */
    section { padding: 4rem 0; }
    .container { padding: 0 1.25rem; }
    .section-header { margin-bottom: 2.5rem; }

    /* Hero */
    #hero {
        grid-template-columns: 1fr;
        padding: 6.5rem 1.25rem 3.5rem;
        gap: 2rem;
        min-height: auto;
    }
    .hero-image {
        order: -1;
        margin: -6.5rem -1.25rem 0;
        width: calc(100% + 2.5rem);
    }
    .hero-img-wrap { max-width: 100%; width: 100%; }
    .hero-img-wrap::before { display: none; }
    .hero-img-wrap img { aspect-ratio: 4/3; border-radius: 0; object-position: center 18%; }
    .hero-tagline { max-width: 100%; }
    .hero-sub { max-width: 100%; }

    /* About */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .about-left { position: static; }
    .about-heading { font-size: clamp(2rem, 7vw, 3.5rem); }

    /* Track record */
    .track-item {
        grid-template-columns: 1fr;
        gap: 0.6rem;
        padding: 1.75rem 0;
    }
    .track-right { text-align: left; }
    .track-left { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; }
    .track-role { margin-bottom: 0; }

    /* Achievements */
    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0;
    }
    .achievement-item { padding: 1.5rem 1rem 1.5rem 0; }
    .achievement-number { font-size: clamp(2.2rem, 8vw, 3.5rem); }

    /* Expertise */
    .expertise-columns {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
        margin-top: 2.5rem;
    }

    /* Cases */
    #casos { padding: 6rem 0; }
    .cases-grid { grid-template-columns: 1fr; gap: 1.25rem; }
    .case-body-grid { grid-template-columns: 1fr 1fr; }
    .casos-cta { flex-direction: column; align-items: flex-start; gap: 1.25rem; }

    /* Sectors */
    .sectors-grid { grid-template-columns: 1fr 1fr; }

    /* Sectors */
    .sectors-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .sectors-intro { position: static; }
    .sectors-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
    .sector-card { padding: 1.5rem; }

    /* Blog */
    .blog-item { padding: 1.5rem 0; gap: 1rem; }

    /* Education */
    .edu-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .edu-left h2 { position: static; }
    .edu-item { gap: 1rem; }

    /* Contact */
    .contact-heading {
        font-size: clamp(1.9rem, 8vw, 3.5rem);
        word-break: break-all;
    }
    #contact { min-height: auto; padding: 5rem 0; }
    #contact .container { gap: 2rem; }

    /* Footer */
    footer {
        flex-direction: column;
        gap: 0.4rem;
        text-align: center;
        padding: 1.5rem 1.25rem;
    }
}

/* ============================================
   RESPONSIVE — MOBILE (≤600px)
   ============================================ */
@media (max-width: 600px) {
    :root {
        --h2-size: clamp(2rem, 9vw, 3rem);
    }

    section { padding: 3.5rem 0; }
    .container { padding: 0 1rem; }
    .section-header { margin-bottom: 2rem; }

    /* Hero */
    #hero { padding: 6rem 1rem 3rem; }
    .hero-image {
        margin: -6rem -1rem 0;
        width: calc(100% + 2rem);
    }
    .hero-kicker { font-size: 0.7rem; margin-bottom: 1rem; }
    .hero-title { margin-bottom: 1.25rem; }
    .hero-tagline { margin-bottom: 1rem; font-size: 1rem; }
    .hero-sub { margin-bottom: 1.75rem; }
    .hero-actions {
        flex-direction: column;
        gap: 0.75rem;
        margin-bottom: 2rem;
    }
    .hero-actions .btn-primary,
    .hero-actions .btn-ghost,
    .hero-actions .btn-download {
        width: 100%;
        justify-content: center;
        text-align: center;
        padding: 1rem 1.5rem;
        min-height: 48px;
    }

    /* About */
    .about-grid { gap: 2rem; }
    .about-body p { font-size: 1rem; }

    /* Track record */
    .track-item { padding: 1.5rem 0; }
    .track-company { font-size: 1rem; }

    /* Achievements */
    .achievements-grid { grid-template-columns: 1fr 1fr; }
    .achievement-item { padding: 1.25rem 0.75rem 1.25rem 0; }

    /* Expertise */
    .expertise-columns { grid-template-columns: 1fr; gap: 2rem; }

    /* Cases */
    #casos { padding: 5.5rem 0; border-top-width: 2px; }
    #casos .section-header h2 { font-size: clamp(2.5rem, 9vw, 4rem); }
    .cases-grid { gap: 0.75rem; }
    .case-card { padding: 1.5rem; }
    .case-headline { font-size: 1.05rem; margin-bottom: 1.25rem; padding-bottom: 1.25rem; }
    .case-body-grid { grid-template-columns: 1fr; gap: 1rem; margin-bottom: 1.25rem; }
    .case-bg-num { font-size: 6rem; }
    .casos-cta { flex-direction: column; align-items: flex-start; gap: 1.25rem; }

    /* Sectors */
    .sectors-grid { grid-template-columns: 1fr; gap: 0.75rem; }

    /* Sectors */
    .sectors-grid { grid-template-columns: 1fr; gap: 0.75rem; }
    .sector-card { padding: 1.25rem; }
    .sector-icon { font-size: 1.2rem; margin-bottom: 0.75rem; }

    /* Blog */
    .blog-item { grid-template-columns: 1fr; padding: 1.25rem 0; }
    .blog-arrow { display: none; }
    .blog-desc { display: none; }
    .blog-title { font-size: 1rem; }

    /* Education */
    .edu-item { grid-template-columns: 1fr; gap: 0.35rem; }
    .edu-year { padding-top: 0; font-size: 0.75rem; }

    /* Contact */
    .contact-heading {
        font-size: clamp(1.5rem, 7.5vw, 2.5rem);
        word-break: break-word;
        letter-spacing: -0.02em;
    }
    .contact-links {
        flex-direction: column;
        gap: 1rem;
    }
    .contact-link { font-size: 0.9rem; min-height: 44px; }

    /* Footer */
    footer { padding: 1.25rem 1rem; }
}

/* ============================================
   RESPONSIVE — SMALL MOBILE (≤380px)
   ============================================ */
@media (max-width: 380px) {
    .container { padding: 0 0.875rem; }

    .hero-title {
        font-size: clamp(2.6rem, 13vw, 3.2rem);
    }

    .contact-heading {
        font-size: clamp(1.3rem, 7vw, 2rem);
    }

    .achievements-grid { grid-template-columns: 1fr; }
    .achievement-item { padding: 1.25rem 0; }
}