/* ============================================================
   ABOUT PAGE — about.css
   Extends styles.css — only about-specific overrides & new rules
   ============================================================ */

/* ── Page loader (reused from main) ── */
.page-loader {
    position: fixed;
    inset: 0;
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.page-loader.pl-done {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.pl-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}
.pl-logo { width: 48px; height: 48px; }
.pl-logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}
.pl-bar-track {
    width: 160px;
    height: 2px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    overflow: hidden;
}
.pl-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.2s ease;
}
.pl-label {
    font-family: var(--font-primary);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.3);
}

/* ── Prevent scroll during load ── */
body.loading { overflow: hidden; }

/* ============================================================
   ABOUT HERO
   ============================================================ */
.about-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 120px;
    padding-bottom: 0;
    overflow: hidden;
    z-index: 1;
}

.about-hero-noise {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.025;
    pointer-events: none;
    z-index: 0;
    mix-blend-mode: overlay;
}

.about-hero-inner {
    position: relative;
    z-index: 2;
    padding-bottom: 5rem;
    /* full container width — override the .container max-width constraint */
    /* max-width: 100%; */
    padding-left: 3rem;
    padding-right: 3rem;
    width: 100%;
}

/* Breadcrumb */
.about-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 2rem;
    font-family: var(--font-primary);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
}
.about-breadcrumb a {
    color: rgba(255,255,255,0.35);
    text-decoration: none;
    transition: color 0.2s ease;
}
.about-breadcrumb a:hover { color: rgba(255,255,255,0.75); }
.bc-sep { font-size: 0.45rem; color: rgba(99,102,241,0.6); }

/* Eyebrow */
.about-eyebrow {
    font-family: var(--font-primary);
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(99,102,241,0.85);
    margin-bottom: 1.5rem;
}

/* Headline */
.about-headline {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: clamp(3.2rem, 7vw, 7.5rem);
    line-height: 0.95;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin: 0 0 3rem;
}
.about-headline em {
    font-style: italic;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero bottom row */
.about-hero-bottom {
    display: flex;
    align-items: flex-end;
    gap: 4rem;
    flex-wrap: wrap;
}
.about-hero-sub {
    font-family: var(--font-primary);
    font-size: clamp(0.78rem, 1.1vw, 0.95rem);
    color: var(--text-secondary);
    line-height: 1.85;
    max-width: 480px;
    flex: 1;
}
.about-hero-ctas {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
    flex-wrap: wrap;
}

/* ── Stats strip ── */
.about-stats-strip {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
    padding: 2rem 3rem;
    border-top: 1px solid rgba(255,255,255,0.07);
    background: rgba(255,255,255,0.02);
    margin-top: 2rem;
}
.about-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    padding: 0 3rem;
}
.stat-num {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--text-primary);
    line-height: 1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-label {
    font-family: var(--font-primary);
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
}
.about-stat-sep {
    font-size: 0.45rem;
    color: rgba(99,102,241,0.4);
    padding: 0 0.5rem;
}

/* ============================================================
   BIO SECTION
   ============================================================ */
.about-bio-section {
    padding: 7rem 0;
    position: relative;
    z-index: 1;
}

.about-bio-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2.5rem;
    align-items: start;
}

/* Photo */
.about-bio-photo-wrap {
    position: sticky;
    top: 120px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
}
.about-bio-photo-frame {
    width: 100%;
    aspect-ratio: 3 / 4;
    max-width: 380px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}
.about-bio-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    filter: brightness(0.9) contrast(1.05);
    transition: transform 0.8s ease;
}
.about-bio-photo-frame:hover .about-bio-photo { transform: scale(1.03); }

.about-bio-avail {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.32rem 0.9rem;
    background: rgba(16,185,129,0.08);
    border: 1px solid rgba(16,185,129,0.28);
    border-radius: 50px;
    font-family: var(--font-primary);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #34d399;
}

/* Bio content */
.about-bio-eyebrow {
    font-family: var(--font-primary);
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(99,102,241,0.85);
    margin-bottom: 0.75rem;
}
.about-bio-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 2rem;
    line-height: 1.1;
}
.about-bio-text {
    font-family: var(--font-primary);
    font-size: clamp(0.78rem, 1vw, 0.88rem);
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 1.25rem;
}
.about-bio-text strong { color: var(--text-primary); }
.about-bio-text em { color: rgba(255,255,255,0.7); font-style: italic; }

/* Facts row */
.about-bio-facts {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.07);
}
.bio-fact {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-primary);
    font-size: 0.75rem;
    color: var(--text-secondary);
}
.bio-fact-icon { font-size: 0.9rem; flex-shrink: 0; }
.bio-fact a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}
.bio-fact a:hover { color: var(--text-primary); }

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.about-services-section {
    padding: 7rem 0;
    position: relative;
    z-index: 1;
}

.about-section-header {
    margin-bottom: 4rem;
}
.about-s-eyebrow {
    font-family: var(--font-primary);
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(99,102,241,0.85);
    margin-bottom: 0.75rem;
}
.about-s-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: clamp(1.8rem, 3.5vw, 3rem);
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.1;
}

/* Services grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5px;
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 16px;
    overflow: hidden;
    background: rgba(255,255,255,0.04);
}

.service-card {
    padding: 2.5rem 2rem;
    background: rgba(10,10,10,0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.05);
    transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}
.service-card:hover::before { opacity: 0.04; }
.service-card:hover {
    border-color: rgba(99,102,241,0.25);
    transform: translateY(-3px);
}
.service-card > * { position: relative; z-index: 1; }

.service-icon {
    font-size: 1.4rem;
    color: rgba(99,102,241,0.8);
    margin-bottom: 1.2rem;
    display: block;
}
.service-card h3 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.82rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: 0.85rem;
    line-height: 1.3;
}
.service-card p {
    font-family: var(--font-primary);
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.85;
}

/* ============================================================
   SKILLS SECTION  (reuses .skills-layout from styles.css)
   ============================================================ */
.about-skills-section {
    padding: 7rem 0;
    position: relative;
    z-index: 1;
}

/* Skills layout already defined in styles.css — just scope padding */
.about-skills-section .skills-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 5rem;
    align-items: start;
}
.about-skills-section .skills-header-col {
    position: sticky;
    top: 120px;
}
.about-skills-section .skills-eyebrow {
    font-family: var(--font-primary);
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(99,102,241,0.85);
    margin-bottom: 1rem;
}
.about-skills-section .skills-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: 1.25rem;
}
.about-skills-section .skills-tagline {
    font-family: var(--font-primary);
    font-size: 0.72rem;
    color: var(--text-secondary);
    line-height: 1.75;
}
.about-skills-section .skills-body-col {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}
.about-skills-section .skill-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
/* .about-skills-section .skill-group:last-child { border-bottom: none; padding-bottom: 0; } */
.about-skills-section .skill-group-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.about-skills-section .skill-group-icon {
    color: rgba(99,102,241,0.7);
    font-size: 0.9rem;
}
.about-skills-section .skill-group-label {
    font-family: var(--font-primary);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.5);
}
.about-skills-section .skill-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.about-skills-section .chip {
    padding: 0.35rem 0.85rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50px;
    font-family: var(--font-primary);
    font-size: 0.65rem;
    color: rgba(255,255,255,0.65);
    letter-spacing: 0.04em;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.about-skills-section .chip:hover {
    border-color: rgba(99,102,241,0.5);
    color: var(--text-primary);
    background: rgba(99,102,241,0.08);
}
.about-skills-section .chip-ai {
    border-color: rgba(139,92,246,0.25);
    color: rgba(167,139,250,0.85);
    background: rgba(139,92,246,0.06);
}
.about-skills-section .chip-ai:hover {
    border-color: rgba(139,92,246,0.6);
    color: #c4b5fd;
    background: rgba(139,92,246,0.12);
}

/* ============================================================
   EXPERIENCE SECTION  (reuses timeline from styles.css)
   ============================================================ */
.about-exp-section {
    padding: 7rem 0;
    position: relative;
    z-index: 1;
}

/* ============================================================
   EDUCATION SECTION  (reuses edu-card from styles.css)
   ============================================================ */
.about-education-section {
    padding: 7rem 0;
    position: relative;
    z-index: 1;
}

/* ============================================================
   VALUES SECTION
   ============================================================ */
.about-values-section {
    padding: 7rem 0;
    position: relative;
    z-index: 1;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.value-card {
    padding: 2.5rem;
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s ease, transform 0.3s ease;
}
.value-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.value-card:hover {
    border-color: rgba(99,102,241,0.2);
    transform: translateY(-4px);
}
.value-card:hover::after { opacity: 1; }

.value-num {
    display: block;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    color: rgba(99,102,241,0.6);
    margin-bottom: 1rem;
}
.value-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: clamp(0.85rem, 1.2vw, 1rem);
    color: var(--text-primary);
    margin-bottom: 0.85rem;
    letter-spacing: 0.01em;
}
.value-desc {
    font-family: var(--font-primary);
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.85;
}

/* ============================================================
   CONTACT CTA SECTION
   ============================================================ */
.about-contact-section {
    padding: 7rem 0 5rem;
    position: relative;
    z-index: 1;
}

.about-contact-inner {
    position: relative;
    text-align: center;
    padding: 5rem 3rem;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px;
    background: rgba(255,255,255,0.02);
    backdrop-filter: blur(20px);
    overflow: hidden;
}

/* Dot-grid texture */
.about-contact-dots {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
    z-index: 0;
}
.about-contact-inner > * { position: relative; z-index: 1; }

/* Gradient glow behind the box */
.about-contact-inner::before {
    content: '';
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: radial-gradient(ellipse, rgba(99,102,241,0.18) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.about-contact-eyebrow {
    font-family: var(--font-primary);
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(99,102,241,0.85);
    margin-bottom: 1.5rem;
}
.about-contact-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: clamp(2rem, 4vw, 3.5rem);
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}
.about-contact-title em {
    font-style: italic;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.about-contact-sub {
    font-family: var(--font-primary);
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.85;
    max-width: 480px;
    margin: 0 auto 2.5rem;
}
.about-contact-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}
.about-socials {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-family: var(--font-primary);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.about-socials a {
    color: rgba(255,255,255,0.4);
    text-decoration: none;
    transition: color 0.2s ease;
}
.about-socials a:hover { color: var(--text-primary); }
.footer-social-sep { color: rgba(255,255,255,0.15); }

/* ============================================================
   FOOTER
   ============================================================ */
.about-footer {
    padding: 2rem 0;
    border-top: 1px solid rgba(255,255,255,0.06);
    position: relative;
    z-index: 1;
}
.about-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    font-family: var(--font-primary);
    font-size: 0.65rem;
    letter-spacing: 0.06em;
    color: rgba(255,255,255,0.28);
    text-transform: uppercase;
}
.about-footer-back {
    color: rgba(255,255,255,0.35);
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 0.65rem;
    letter-spacing: 0.08em;
}
.about-footer-back:hover { color: var(--text-primary); }

/* ============================================================
   BACK TO TOP — original circle design (about page)
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: 2.5rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    background: none;
    border: none;
    padding: 0;
    z-index: 900;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform: translateY(16px);
    cursor: pointer;
}
.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.btt-arrow {
    width: 42px;
    height: 42px;
    border: 1.5px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.55);
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(12px);
    transition: border-color 0.25s ease, color 0.25s ease,
                background 0.25s ease, transform 0.25s ease,
                box-shadow 0.25s ease;
}
.back-to-top:hover .btt-arrow {
    border-color: rgba(139, 92, 246, 0.7);
    color: #c4b5fd;
    background: rgba(139, 92, 246, 0.12);
    transform: translateY(-3px);
    box-shadow: 0 0 18px rgba(139, 92, 246, 0.25);
}
.btt-arrow svg { width: 15px; height: 15px; }

.btt-label {
    font-family: var(--font-primary);
    font-size: 0.48rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.28);
    transition: color 0.25s ease;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
}
.back-to-top:hover .btt-label { color: rgba(255, 255, 255, 0.55); }

.btt-line {
    width: 1px;
    height: 32px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.18), transparent);
    border-radius: 1px;
    animation: btt-line-breathe 2.2s ease-in-out infinite;
}

@keyframes btt-line-breathe {
    0%, 100% { height: 32px; opacity: 0.5; }
    50%       { height: 20px; opacity: 0.9; }
}

/* ============================================================
   SCROLL ENTRANCE ANIMATIONS
   ============================================================ */
.fade-up {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1),
                transform 0.7s cubic-bezier(0.22,1,0.36,1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* Stagger siblings automatically */
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* Reuse fade-in / fade-in-left / fade-in-right from styles.css */

/* ============================================================
   SECTION DIVIDERS
   ============================================================ */
.about-bio-section,
.about-services-section,
.about-skills-section,
.about-exp-section,
.about-education-section,
.about-values-section {
    border-top: 1px solid rgba(255,255,255,0.04);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .about-bio-grid { grid-template-columns: 1fr; gap: 3rem; }
    .about-bio-photo-wrap { position: static; max-width: 320px; }
    .about-skills-section .skills-layout { grid-template-columns: 1fr; gap: 3rem; }
    .about-skills-section .skills-header-col { position: static; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .about-hero { padding-top: 100px; }
    .about-hero-inner { padding-left: 1.5rem; padding-right: 1.5rem; }
    .about-headline { font-size: clamp(2.8rem, 12vw, 5rem); }
    .about-hero-bottom { flex-direction: column; gap: 2rem; align-items: flex-start; }
    .about-stats-strip { gap: 0; padding: 1.5rem 1rem; }
    .about-stat { padding: 0.75rem 1.5rem; }
    .about-stat-sep { display: none; }
    .about-stats-strip { flex-wrap: wrap; }
    .values-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .about-contact-inner { padding: 3rem 1.5rem; }
    .about-contact-title { font-size: clamp(1.8rem, 8vw, 2.8rem); }
    .about-footer-inner { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 480px) {
    .about-hero-ctas { flex-direction: column; width: 100%; }
    .hero-cta-primary,
    .hero-cta-ghost { justify-content: center; width: 100%; }
    .about-contact-actions { flex-direction: column; width: 100%; }
    .about-bio-photo-wrap { max-width: 100%; }
}