/* ============================================
   PAGE TOKENS — Portfolio
   ============================================ */
:root {
    --container-max: 1024px;
    --section-padding: 140px;
    --section-padding-mobile: 100px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--color-black);
    color: var(--color-gray-900);
    overflow-x: hidden;
}

::selection {
    background: rgba(41, 151, 255, 0.3);
    color: inherit;
}

img, svg {
    display: block;
    max-width: 100%;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

:focus-visible {
    outline: 2px solid var(--color-blue);
    outline-offset: 2px;
}

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

    html { scroll-behavior: auto; }

    .marquee__track { animation: none; }

    .rv {
        opacity: 1;
        transform: none;
    }
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
}

/* ============================================
   SECTION HEADER — page scale
   ============================================ */
.section-eyebrow {
    color: var(--color-blue-dark);
}

.section-headline {
    font-size: clamp(36px, 5.5vw, 64px);
    line-height: 1.05;
    margin-bottom: 24px;
}

.section-desc {
    font-size: 19px;
    color: var(--color-gray-500);
    line-height: 1.58;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.nav__logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 18px;
    color: var(--color-gray-50);
    letter-spacing: -0.02em;
}

.nav__logo-accent {
    color: var(--color-blue);
}

.nav__links {
    align-items: center;
    gap: 28px;
}

.nav__link {
    color: var(--color-gray-200);
    font-weight: 400;
    letter-spacing: 0.01em;
    font-family: var(--font-body);
}

.nav__link:hover,
.nav__link:focus-visible {
    color: #fff;
}

.nav__link--cta {
    background: linear-gradient(135deg, #2997ff, #bf5af2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    position: relative;
}

.nav__link--cta:hover,
.nav__link--cta:focus-visible {
    -webkit-text-fill-color: transparent;
    filter: brightness(1.2);
}

/* Nav Dropdown */
.nav__dropdown {
    position: relative;
}

.nav__dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.01em;
    color: inherit;
    padding: 0;
}

.nav__dropdown-arrow {
    transition: transform 0.3s;
}

.nav__dropdown:hover .nav__dropdown-arrow,
.nav__dropdown.is-open .nav__dropdown-arrow {
    transform: rotate(180deg);
}

.nav__dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    list-style: none;
    background: rgba(10, 10, 12, 0.92);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    padding: 8px 0;
    min-width: 170px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s, visibility 0.25s, transform 0.25s;
    z-index: 110;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown.is-open .nav__dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav__dropdown-menu .nav__link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 20px;
    white-space: nowrap;
    font-size: 13px;
    transition: background 0.2s, color 0.2s;
}

.nav__dropdown-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    color: var(--color-gray-400);
    transition: color 0.3s;
}

.nav__dropdown-menu .nav__link:hover .nav__dropdown-icon {
    color: var(--color-gray-200);
}

.nav__dropdown-menu .nav__link:hover {
    background: rgba(255, 255, 255, 0.06);
}

.nav__dropdown-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 6px 12px;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 100vh;
    min-height: 100dvh;
    background: var(--color-black);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1200px;
    height: 1200px;
    background: radial-gradient(
        ellipse at center,
        rgba(41, 151, 255, 0.08) 0%,
        rgba(191, 90, 242, 0.04) 30%,
        transparent 70%
    );
    pointer-events: none;
    animation: hero-glow 8s ease-in-out infinite alternate;
}

@keyframes hero-glow {
    0%   { transform: translate(-50%, -50%) scale(1);    opacity: 1;   }
    100% { transform: translate(-50%, -50%) scale(1.15); opacity: 0.7; }
}

.hero__eyebrow {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 400;
    color: var(--color-blue);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(20px);
    animation: fade-up 1s var(--ease-out-expo) forwards 0.3s;
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(48px, 8vw, 96px);
    font-weight: 800;
    line-height: 1.0;
    letter-spacing: -0.04em;
    color: var(--color-gray-50);
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(30px);
    animation: fade-up 1s var(--ease-out-expo) forwards 0.5s;
}

.hero__title-gradient {
    background: linear-gradient(90deg, var(--color-blue), var(--color-purple), var(--color-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 100%;
    animation: gradient-shift 6s ease infinite 1.5s;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50%      { background-position: 100% 50%; }
}

.hero__subtitle {
    font-size: clamp(17px, 2.2vw, 21px);
    color: var(--color-gray-400);
    font-weight: 300;
    max-width: 580px;
    line-height: 1.55;
    letter-spacing: -0.01em;
    margin-bottom: 48px;
    opacity: 0;
    transform: translateY(30px);
    animation: fade-up 1s var(--ease-out-expo) forwards 0.7s;
}

.hero__actions {
    display: flex;
    gap: 16px;
    align-items: center;
    opacity: 0;
    transform: translateY(30px);
    animation: fade-up 1s var(--ease-out-expo) forwards 0.9s;
}

.hero__metrics {
    display: flex;
    gap: 48px;
    margin-top: 80px;
    opacity: 0;
    transform: translateY(30px);
    animation: fade-up 1s var(--ease-out-expo) forwards 1.1s;
}

.hero__metric {
    text-align: center;
}

.hero__metric-value {
    font-family: var(--font-display);
    font-size: 44px;
    font-weight: 700;
    color: var(--color-gray-50);
    letter-spacing: -0.03em;
    line-height: 1;
}

.hero__metric-accent {
    color: var(--color-blue);
}

.hero__metric-label {
    font-size: 13px;
    color: var(--color-gray-500);
    margin-top: 6px;
    letter-spacing: 0.01em;
}

/* Scroll indicator styles in css/core/scroll-indicator.css */

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 30px;
    border-radius: var(--border-radius-pill);
    font-size: 17px;
    font-weight: 500;
    font-family: var(--font-display);
    text-decoration: none;
    transition: all 0.3s var(--ease-out-quart);
    cursor: pointer;
    border: none;
    letter-spacing: -0.01em;
}

.btn--filled {
    background: var(--color-blue);
    color: var(--color-white);
}

.btn--filled:hover {
    background: var(--color-blue-hover);
    transform: scale(1.04);
}

.btn--ghost {
    background: transparent;
    color: var(--color-blue);
}

.btn--ghost:hover {
    color: var(--color-blue-hover);
}

.btn--ghost svg {
    transition: transform 0.3s;
}

.btn--ghost:hover svg {
    transform: translateX(3px);
}

/* ============================================
   MARQUEE
   ============================================ */
.marquee {
    background: var(--color-black);
    border-top: var(--border-dark);
    border-bottom: var(--border-dark);
    padding: 20px 0;
    overflow: hidden;
}

.marquee__track {
    display: flex;
    width: max-content;
    animation: marquee-scroll 30s linear infinite;
}

.marquee__track:hover {
    animation-play-state: paused;
}

@keyframes marquee-scroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.marquee__item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 32px;
    white-space: nowrap;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-gray-500);
    font-weight: 400;
}

.marquee__dot {
    width: 4px;
    height: 4px;
    background: var(--color-blue);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ============================================
   ABOUT
   ============================================ */
.about {
    background: var(--color-white);
    padding: var(--section-padding) 24px;
}

.about__layout {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 80px;
    align-items: center;
    margin-top: 80px;
}

.about__photo-wrapper {
    position: relative;
}

.about__photo {
    width: 100%;
    aspect-ratio: 3 / 4;
    border-radius: var(--border-radius-card-lg);
    background: linear-gradient(160deg, #e8e8ed 0%, #d2d2d7 100%);
    position: relative;
    overflow: hidden;
}

.about__photo::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--border-radius-card-lg);
    border: var(--border-light);
    pointer-events: none;
}

.about__photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about__float-card {
    position: absolute;
    background: var(--color-black);
    color: var(--color-gray-50);
    border-radius: var(--border-radius-card);
    padding: 24px 28px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

.about__float-card--top {
    bottom: -16px;
    right: -16px;
}

.about__float-card--bottom {
    top: -16px;
    left: -16px;
}

.about__float-value {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
}

.about__float-value--blue  { color: var(--color-blue); }
.about__float-value--purple { color: var(--color-purple); }

.about__float-label {
    font-size: 12px;
    color: var(--color-gray-500);
    margin-top: 4px;
    letter-spacing: 0.02em;
}

.about__details {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.about__text {
    font-size: 17px;
    color: var(--color-gray-700);
    line-height: 1.7;
    font-weight: 300;
}

.about__text strong {
    color: var(--color-gray-900);
    font-weight: 600;
}

.about__highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.highlight {
    background: var(--color-gray-50);
    border-radius: var(--border-radius-card-sm);
    padding: 24px;
    transition: background var(--transition-card), box-shadow var(--transition-card), transform var(--transition-card);
}

.highlight:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-card);
    transform: translateY(-2px);
}

.highlight__icon {
    font-size: 24px;
    margin-bottom: 10px;
}

.highlight__title {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.highlight__desc {
    font-size: 13px;
    color: var(--color-gray-500);
    line-height: 1.4;
}

/* ============================================
   EXPERIENCE
   ============================================ */
.experience {
    background: var(--color-gray-50);
    padding: var(--section-padding) 24px;
}

.experience__timeline {
    margin-top: 64px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.exp-card {
    background: var(--color-white);
    border-radius: var(--border-radius-card);
    border: var(--border-light);
    overflow: hidden;
    transition: box-shadow var(--transition-card), transform var(--transition-card);
}

.exp-card:hover {
    box-shadow: var(--shadow-card-lg);
    transform: translateY(-2px);
}

.exp-card__toggle {
    width: 100%;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    padding: 40px 40px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    font: inherit;
    color: inherit;
}

.exp-card__toggle:focus-visible {
    outline: 2px solid var(--color-blue);
    outline-offset: -2px;
    border-radius: var(--border-radius-card) var(--border-radius-card) 0 0;
}

.exp-card__header {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    width: 100%;
}

.exp-card__header-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.exp-card__role {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.15;
}

.exp-card__chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-gray-400);
    transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s;
    transform: rotate(0deg);
}

.exp-card.is-expanded .exp-card__chevron {
    transform: rotate(180deg);
    color: var(--color-blue);
}

.exp-card__toggle:hover .exp-card__chevron {
    color: var(--color-blue);
}

.exp-card__period {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-gray-400);
    padding: 6px 14px;
    background: var(--color-gray-50);
    border-radius: 100px;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.exp-card__company {
    font-size: 15px;
    color: var(--color-gray-500);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 40px 24px;
}

.exp-card__company-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.exp-card__company-dot--blue   { background: var(--color-blue); }
.exp-card__company-dot--purple { background: var(--color-purple); }
.exp-card__company-dot--green  { background: var(--color-green); }
.exp-card__company-dot--orange { background: var(--color-orange); }

.exp-card__company-link {
    color: var(--color-gray-500);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s;
}

.exp-card__company-link:hover {
    color: var(--color-gray-900);
}

.exp-card__company-icon {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity 0.3s, transform 0.3s;
}

.exp-card__company-link:hover .exp-card__company-icon {
    opacity: 1;
    transform: translateX(0);
}

.exp-card__collapsible {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.exp-card.is-expanded .exp-card__collapsible {
    grid-template-rows: 1fr;
}

.exp-card__collapsible-inner {
    overflow: hidden;
}

.exp-card__body {
    padding: 0 40px 36px;
}

.exp-card__bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.exp-card__bullets li {
    font-size: 15px;
    color: var(--color-gray-700);
    line-height: 1.6;
    padding-left: 20px;
    position: relative;
    font-weight: 300;
}

.exp-card__bullets li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-blue);
}

.exp-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 40px 32px;
}

.tag {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    padding: 5px 12px;
    border-radius: 100px;
    background: var(--color-gray-50);
    color: var(--color-gray-500);
    letter-spacing: 0.02em;
}

/* ============================================
   PROJECTS
   ============================================ */
.projects {
    background: var(--color-black);
    padding: var(--section-padding) 24px;
    color: var(--color-gray-50);
}

.projects .section-eyebrow  { color: var(--color-blue); }
.projects .section-headline { color: var(--color-gray-50); }
.projects .section-desc     { color: var(--color-gray-500); }

.projects__showcase {
    margin-top: 80px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.projects__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.project-card {
    border-radius: var(--border-radius-card-lg);
    padding: 48px;
    position: relative;
    overflow: hidden;
    min-height: 420px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    transition: transform 0.5s var(--ease-out-quart), border-color var(--transition-card);
}

.project-card:hover {
    transform: scale(1.01);
}

.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--border-radius-card-lg);
    border: var(--border-dark);
    pointer-events: none;
    z-index: 1;
}

.project-card--featured { background: linear-gradient(160deg, #1a1a3e, #0d0d1f); grid-column: 1 / -1; }
.project-card--fintech  { background: linear-gradient(160deg, #0a2e4e, #081c30); }
.project-card--gaming   { background: linear-gradient(160deg, #2a1548, #140a28); }
.project-card--devops   { background: linear-gradient(160deg, #1a2e1e, #0d1a10); }
.project-card--banking  { background: linear-gradient(160deg, #2e1a0a, #1a0f05); }

.project-card__glow {
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    pointer-events: none;
}

.project-card--featured .project-card__glow { background: var(--color-blue); }
.project-card--fintech  .project-card__glow { background: var(--color-teal); }
.project-card--gaming   .project-card__glow { background: var(--color-purple); }
.project-card--devops   .project-card__glow { background: var(--color-green); }
.project-card--banking  .project-card__glow { background: var(--color-orange); }

.project-card__eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 12px;
    position: relative;
    z-index: 2;
}

.project-card--featured .project-card__eyebrow { color: var(--color-blue); }
.project-card--fintech  .project-card__eyebrow { color: var(--color-teal); }
.project-card--gaming   .project-card__eyebrow { color: var(--color-purple); }
.project-card--devops   .project-card__eyebrow { color: var(--color-green); }
.project-card--banking  .project-card__eyebrow { color: var(--color-orange); }

.project-card__title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    color: var(--color-gray-50);
    position: relative;
    z-index: 2;
}

.project-card--featured .project-card__title {
    font-size: 40px;
}

.project-card__desc {
    font-size: 15px;
    color: rgba(245, 245, 247, 0.55);
    line-height: 1.6;
    max-width: 520px;
    font-weight: 300;
    position: relative;
    z-index: 2;
}

.project-card__tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
    position: relative;
    z-index: 2;
}

.project-card__pill {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 4px 12px;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(245, 245, 247, 0.6);
    letter-spacing: 0.02em;
}

.project-card__stats {
    display: flex;
    gap: 32px;
    margin-top: 24px;
    position: relative;
    z-index: 2;
}

.project-card__stat-value {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: var(--color-gray-50);
    letter-spacing: -0.02em;
}

.project-card__stat-label {
    font-size: 12px;
    color: rgba(245, 245, 247, 0.4);
    margin-top: 2px;
}

/* ============================================
   SKILLS
   ============================================ */
.skills {
    background: var(--color-white);
    padding: var(--section-padding) 24px;
}

.skills__grid {
    margin-top: 64px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.skill-card {
    background: var(--color-gray-50);
    border-radius: var(--border-radius-card);
    padding: 36px;
    transition: background var(--transition-card), border-color var(--transition-card), box-shadow var(--transition-card), transform var(--transition-card);
    border: 1px solid transparent;
}

.skill-card:hover {
    background: var(--color-white);
    border-color: rgba(0, 0, 0, 0.06);
    box-shadow: var(--shadow-card);
    transform: translateY(-4px);
}

.skill-card__icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 22px;
}

.skill-card:nth-child(1) .skill-card__icon { background: linear-gradient(135deg, #2997ff, #5ac8fa); }
.skill-card:nth-child(2) .skill-card__icon { background: linear-gradient(135deg, #bf5af2, #ff375f); }
.skill-card:nth-child(3) .skill-card__icon { background: linear-gradient(135deg, #30d158, #5ac8fa); }
.skill-card:nth-child(4) .skill-card__icon { background: linear-gradient(135deg, #ff9f0a, #ff375f); }
.skill-card:nth-child(5) .skill-card__icon { background: linear-gradient(135deg, #5e5ce6, #bf5af2); }
.skill-card:nth-child(6) .skill-card__icon { background: linear-gradient(135deg, #ff375f, #ff9f0a); }
.skill-card:nth-child(7) .skill-card__icon { background: linear-gradient(135deg, #5ac8fa, #30d158); }

.skill-card__title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.skill-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.skill-tag {
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 5px 12px;
    border-radius: 100px;
    background: var(--color-white);
    color: var(--color-gray-500);
    border: 1px solid var(--color-gray-100);
    transition: background 0.2s;
}

.skill-card:hover .skill-tag {
    background: var(--color-gray-50);
}

/* ============================================
   ACHIEVEMENTS
   ============================================ */
.achievements {
    background: var(--color-black);
    padding: var(--section-padding) 24px;
    color: var(--color-gray-50);
}

.achievements .section-eyebrow  { color: var(--color-blue); }
.achievements .section-headline { color: var(--color-gray-50); }
.achievements .section-desc     { color: var(--color-gray-500); }

.achievements__grid {
    margin-top: 64px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.ach-card {
    border: var(--border-dark);
    border-radius: var(--border-radius-card);
    padding: 36px;
    background: rgba(255, 255, 255, 0.02);
    transition: background var(--transition-card), border-color var(--transition-card), transform var(--transition-card);
    position: relative;
    overflow: hidden;
}

.ach-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
}

.ach-card__icon {
    font-size: 40px;
    margin-bottom: 20px;
    display: block;
}

.ach-card__year {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-blue);
    letter-spacing: 0.06em;
    margin-bottom: 10px;
}

.ach-card__title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 10px;
}

.ach-card__desc {
    font-size: 14px;
    color: var(--color-gray-500);
    line-height: 1.55;
    font-weight: 300;
}

/* ============================================
   EDUCATION
   ============================================ */
.education {
    background: var(--color-gray-50);
    padding: var(--section-padding) 24px;
}

.education__grid {
    margin-top: 64px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.edu-card {
    background: var(--color-white);
    border-radius: var(--border-radius-card);
    padding: 36px;
    border: var(--border-light);
    transition: box-shadow var(--transition-card), transform var(--transition-card);
}

.edu-card:hover {
    box-shadow: var(--shadow-card);
    transform: translateY(-4px);
}

.edu-card__eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-blue-dark);
    margin-bottom: 16px;
}

.edu-card__title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}

.edu-card__subtitle {
    font-size: 15px;
    color: var(--color-gray-500);
    margin-bottom: 6px;
}

.edu-card__detail {
    font-size: 14px;
    color: var(--color-gray-400);
    line-height: 1.6;
    margin-top: 12px;
    font-weight: 300;
}

/* ============================================
   PRESENTATIONS
   ============================================ */
.presentations {
    background: var(--color-black);
    padding: var(--section-padding) 24px;
    color: var(--color-gray-50);
    position: relative;
    overflow: hidden;
}

.presentations .section-eyebrow  { color: var(--color-purple); }
.presentations .section-headline { color: var(--color-gray-50); }
.presentations .section-desc     { color: var(--color-gray-500); }

.presentations__ambient {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(160px);
    opacity: 0.07;
    pointer-events: none;
}

.presentations__ambient--1 {
    top: -200px;
    right: -100px;
    background: var(--color-purple);
}

.presentations__ambient--2 {
    bottom: -200px;
    left: -100px;
    background: var(--color-blue);
}

.presentations__grid {
    margin-top: 64px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    position: relative;
    z-index: 1;
}

.pres-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--border-radius-card-lg);
    padding: 44px 40px;
    text-decoration: none;
    color: var(--color-gray-50);
    position: relative;
    overflow: hidden;
    border: var(--border-dark);
    transition: transform 0.5s var(--ease-out-quart), border-color var(--transition-card);
    min-height: 340px;
}

.pres-card:hover {
    transform: scale(1.02);
    border-color: rgba(255, 255, 255, 0.12);
}

/* ── Presentation card variants ─────────────── */
.pres-card--cicd   { background: linear-gradient(160deg, #0a1e3e, #080d1f); }
.pres-card--arch   { background: linear-gradient(160deg, #0a2e1e, #081a10); }
.pres-card--github { background: linear-gradient(160deg, #1a1040, #0d0820); }

.pres-card--cicd   .pres-card__glow     { background: var(--color-blue); }
.pres-card--arch   .pres-card__glow     { background: var(--color-green); }
.pres-card--github .pres-card__glow     { background: var(--color-purple); }

.pres-card--cicd   .pres-card__category { color: var(--color-blue); }
.pres-card--arch   .pres-card__category { color: var(--color-green); }
.pres-card--github .pres-card__category { color: var(--color-purple); }

.pres-card--cicd   .pres-card__arrow svg { stroke: var(--color-blue); }
.pres-card--arch   .pres-card__arrow svg { stroke: var(--color-green); }
.pres-card--github .pres-card__arrow svg { stroke: var(--color-purple); }

.pres-card--cicd:hover   .pres-card__arrow { background: var(--color-blue); }
.pres-card--arch:hover   .pres-card__arrow { background: var(--color-green); }
.pres-card--github:hover .pres-card__arrow { background: var(--color-purple); }

.pres-card__glow {
    position: absolute;
    top: -80px;
    right: -80px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.25;
    pointer-events: none;
    transition: opacity 0.5s;
}

.pres-card:hover .pres-card__glow {
    opacity: 0.4;
}

.pres-card__number {
    font-family: var(--font-display);
    font-size: 64px;
    font-weight: 800;
    position: absolute;
    top: 24px;
    right: 32px;
    line-height: 1;
    color: rgba(255, 255, 255, 0.04);
    pointer-events: none;
    z-index: 0;
}

.pres-card__category {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.pres-card__title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 14px;
    line-height: 1.2;
    color: var(--color-gray-50);
    position: relative;
    z-index: 2;
}

.pres-card__desc {
    font-size: 14px;
    color: rgba(245, 245, 247, 0.5);
    line-height: 1.65;
    flex: 1;
    font-weight: 300;
    position: relative;
    z-index: 2;
}

.pres-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 28px;
    position: relative;
    z-index: 2;
}

.pres-card__date {
    font-family: var(--font-mono);
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
    letter-spacing: 0.04em;
}

.pres-card__arrow {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s, transform 0.3s;
}

.pres-card__arrow svg {
    width: 14px;
    height: 14px;
    stroke-width: 2;
    fill: none;
    transition: transform 0.3s;
}

.pres-card:hover .pres-card__arrow svg {
    stroke: var(--color-black);
    transform: translateX(2px);
}

.presentations__cta {
    text-align: center;
    margin-top: 48px;
    position: relative;
    z-index: 1;
}

.presentations__view-all {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 500;
    color: var(--color-blue);
    text-decoration: none;
    letter-spacing: -0.01em;
    transition: color 0.3s;
}

.presentations__view-all:hover {
    color: var(--color-blue-hover);
}

.presentations__view-all svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    transition: transform 0.3s;
}

.presentations__view-all:hover svg {
    transform: translateX(4px);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    background: var(--color-black);
    padding: 160px 24px 80px;
    color: var(--color-gray-50);
    text-align: center;
    position: relative;
    border-top: var(--border-dark);
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse at center bottom, rgba(41, 151, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.contact .section-eyebrow  { color: var(--color-blue); }
.contact .section-headline { color: var(--color-gray-50); margin-bottom: 16px; }
.contact .section-desc     { margin: 0 auto 56px; color: var(--color-gray-400); text-align: center; }

.contact__grid {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.contact__pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px;
    border-radius: var(--border-radius-pill);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--color-gray-50);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    font-family: var(--font-display);
    transition: background 0.3s, border-color 0.3s, transform 0.3s;
    letter-spacing: -0.01em;
}

.contact__pill:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.contact__pill svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.contact__pill--primary {
    background: var(--color-blue);
    border-color: transparent;
}

.contact__pill--primary:hover {
    background: var(--color-blue-hover);
    border-color: transparent;
}

.contact__languages {
    margin-top: 48px;
    display: flex;
    justify-content: center;
    gap: 24px;
    position: relative;
    z-index: 2;
}

.contact__lang {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-gray-500);
}

.contact__lang-flag {
    font-size: 18px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-black);
    padding: 24px;
    border-top: var(--border-dark);
}

.footer__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer__inner p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.25);
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
.rv {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.9s var(--ease-out-expo), transform 0.9s var(--ease-out-expo);
}

.rv.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.rv--d1 { transition-delay: 0.1s; }
.rv--d2 { transition-delay: 0.2s; }
.rv--d3 { transition-delay: 0.3s; }
.rv--d4 { transition-delay: 0.4s; }
.rv--d5 { transition-delay: 0.5s; }
.rv--d6 { transition-delay: 0.6s; }

/* ============================================
   RESPONSIVE — Tablet
   ============================================ */
@media (max-width: 900px) {
    .about__layout          { grid-template-columns: 1fr; gap: 48px; }
    .about__photo-wrapper   { max-width: 400px; margin: 0 auto; }
    .projects__row          { grid-template-columns: 1fr; }
    .project-card--featured { grid-column: auto; }
    .skills__grid           { grid-template-columns: 1fr 1fr; }
    .achievements__grid     { grid-template-columns: 1fr 1fr; }
    .education__grid        { grid-template-columns: 1fr; }
    .presentations__grid    { grid-template-columns: 1fr 1fr; }
    .hero__metrics          { gap: 32px; }
}

/* ============================================
   RESPONSIVE — Mobile
   ============================================ */
@media (max-width: 640px) {
    .about,
    .experience,
    .projects,
    .skills,
    .achievements,
    .education,
    .presentations,
    .contact {
        padding: var(--section-padding-mobile) 20px;
    }

    .nav__links.is-open {
        gap: 20px;
    }

    /* Top-level links only — the dropdown keeps the shared 14px */
    .nav__links.is-open > li > .nav__link { font-size: 12px; }

    /* Flatten dropdown in mobile hamburger */
    .nav__dropdown-trigger { display: none; }
    .nav__dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: none;
        border: none;
        border-radius: 0;
        padding: 0;
        min-width: 0;
        box-shadow: none;
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    .nav__dropdown-menu .nav__link {
        padding: 0;
        font-size: 14px;
    }
    .nav__dropdown-divider { display: none; }

    .hero {
        min-height: 90vh;
        min-height: 90dvh;
        padding: 100px 20px 60px;
    }

    .hero__metrics {
        flex-direction: row;
        gap: 24px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero__scroll        { display: none; }
    .hero__actions       { flex-direction: column; }
    .skills__grid        { grid-template-columns: 1fr; }
    .about__highlights   { grid-template-columns: 1fr; }

    .exp-card__toggle    { padding: 28px 28px 8px; }
    .exp-card__company   { padding: 0 28px 16px; }
    .exp-card__body      { padding: 20px 28px 28px; }
    .exp-card__tags      { padding: 0 28px 24px; }
    .exp-card__role      { font-size: 22px; }

    .project-card            { padding: 36px; min-height: 340px; }
    .project-card .project-card__title { font-size: 26px; }

    .achievements__grid  { grid-template-columns: 1fr; }
    .presentations__grid { grid-template-columns: 1fr; }
    .pres-card           { padding: 32px 28px; min-height: 280px; }
    .pres-card__title    { font-size: 20px; }
    .pres-card__number   { font-size: 48px; }

    .contact__grid       { flex-direction: column; align-items: center; }
    .contact__languages  { flex-direction: column; align-items: center; gap: 12px; }
    .footer__inner       { flex-direction: column; gap: 8px; text-align: center; }
}

/* ============================================
   PRINT
   ============================================ */
@media print {
    .nav, .hero__scroll, .marquee { display: none; }
    .hero { min-height: auto; padding: 40px 24px; }
    .rv { opacity: 1; transform: none; }
    body { background: #fff; color: #000; }
    .hero, .projects, .achievements, .presentations, .contact, .footer {
        background: #fff;
        color: #000;
    }
}