/* =========================================================
   DIDA.DEV — PORTFOLIO MAIN STYLESHEET
   Dark Theme + Neon Lime Accent
========================================================= */

/* =========================================================
   01. ROOT / VARIABLES
========================================================= */
:root {
    --bg-main: #08090a;
    --bg-secondary: #0e1115;
    --bg-card: #14171d;
    --bg-card-soft: #101318;
    --bg-light: #f5f5f2;

    --text-primary: #f4f5f6;
    --text-secondary: #a7adb7;
    --text-muted: #6f7680;
    --text-dark: #17191c;

    --accent: #ccff00;
    --accent-soft: rgba(204, 255, 0, 0.12);
    --accent-border: rgba(204, 255, 0, 0.35);

    --border-dark: rgba(255, 255, 255, 0.08);
    --border-light: rgba(0, 0, 0, 0.10);

    --white: #ffffff;
    --black: #000000;

    --max-width: 1180px;
    --transition-fast: 0.25s ease;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.5);
    --header-height: 80px;
}

/* =========================================================
   02. RESET & BASE
========================================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: "Inter", sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

body::-webkit-scrollbar {
    width: 8px;
}

body::-webkit-scrollbar-track {
    background: var(--bg-main);
}

body::-webkit-scrollbar-thumb {
    background: #262b33;
    border-radius: 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

button, input, textarea {
    font-family: inherit;
}

button {
    border: 0;
    cursor: pointer;
}

ul {
    list-style: none;
}

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

/* =========================================================
   03. GLOBAL CONTAINER & SECTION
========================================================= */
.section-container,
.hero-container,
.navbar,
.footer-container {
    width: min(calc(100% - 60px), var(--max-width));
    margin: 0 auto;
}

.section {
    padding: 110px 0;
}

.section:nth-child(even) {
    background: var(--bg-secondary);
}

.section-heading {
    margin-bottom: 55px;
}

.section-label,
.section-subtitle {
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 12px;
}

.section-heading h2,
.section-title {
    font-size: clamp(34px, 4.5vw, 54px);
    line-height: 1.1;
    letter-spacing: -1.5px;
    font-weight: 800;
}

/* =========================================================
   04. SPLASH SCREEN (INTRO)
========================================================= */
#splash-screen {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-main);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999;
    overflow: hidden;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#splash-tech-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.2;
    z-index: 1;
}

.splash-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 35px 25px;
    max-width: 580px;
    width: 90%;
    background: rgba(14, 17, 21, 0.75);
    border: 1px solid rgba(204, 255, 0, 0.2);
    border-radius: 14px;
    backdrop-filter: blur(12px);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.8), 0 0 20px rgba(204, 255, 0, 0.08);
}

.splash-tech-icon {
    font-size: 2.2rem;
    color: var(--accent);
    margin-bottom: 15px;
    animation: pulseIcon 2s infinite ease-in-out;
}

.splash-welcome {
    font-size: 0.8rem;
    letter-spacing: 3px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.splash-name {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 800;
    color: var(--white);
    letter-spacing: 1.5px;
    margin-bottom: 10px;
}

.splash-sub {
    font-size: 1rem;
    color: var(--accent);
    font-family: 'Fira Code', 'Courier New', monospace;
    letter-spacing: 1px;
    margin-bottom: 30px;
    min-height: 1.5em;
}

.cursor {
    display: inline-block;
    color: var(--accent);
    animation: blink 0.7s infinite;
}

.splash-btn {
    background: rgba(204, 255, 0, 0.06);
    color: var(--accent);
    border: 1.5px solid var(--accent);
    padding: 13px 32px;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 2px;
    border-radius: 6px;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 0 12px rgba(204, 255, 0, 0.15);
}

.splash-btn:hover {
    background: var(--accent);
    color: var(--black);
    box-shadow: 0 0 25px rgba(204, 255, 0, 0.5);
    transform: translateY(-2px);
}

#splash-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

/* =========================================================
   05. NAVBAR & HEADER
========================================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    background: rgba(8, 9, 10, 0.85);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border-dark);
}

.navbar {
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
    transition: var(--transition-fast);
}

.logo span {
    color: var(--accent);
}

.logo:hover {
    transform: translateY(-2px);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 26px;
}

.nav-link {
    position: relative;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
}

.nav-link.active::after,
.nav-link:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border-dark);
    background: transparent;
    border-radius: 8px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--white);
    transition: var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 20px;
    right: 20px;
    flex-direction: column;
    padding: 12px;
    background: rgba(14, 17, 21, 0.98);
    border: 1px solid var(--border-dark);
    border-radius: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.mobile-menu.active {
    display: flex;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mobile-nav-link {
    padding: 12px 14px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 6px;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--accent);
    background: var(--accent-soft);
}

/* =========================================================
   06. HERO SECTION
========================================================= */
.hero {
    min-height: 100vh;
    padding-top: calc(var(--header-height) + 30px);
    padding-bottom: 60px;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    right: -150px;
    top: 15%;
    background: var(--accent);
    opacity: 0.05;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 2;
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 18px;
}

.hero-label::before {
    content: "";
    width: 24px;
    height: 1px;
    background: var(--accent);
}

.hero-title {
    font-size: clamp(40px, 6vw, 76px);
    line-height: 1.02;
    letter-spacing: -3px;
    font-weight: 800;
    margin-bottom: 20px;
}

.hero-title span {
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.45);
}

.hero-role {
    font-size: 15px;
    letter-spacing: 3px;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 18px;
}

.hero-education {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
    color: var(--text-secondary);
    font-size: 14px;
}

.hero-education span {
    padding: 4px 10px;
    background: var(--accent-soft);
    border: 1px solid var(--accent-border);
    color: var(--accent);
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
}

.hero-description {
    max-width: 540px;
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 24px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 700;
    transition: var(--transition-fast);
}

.btn-primary {
    background: var(--accent);
    color: var(--black);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(204, 255, 0, 0.25);
}

.btn-secondary {
    border: 1px solid var(--border-dark);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-3px);
}

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 380px;
    aspect-ratio: 3 / 4;
    padding: 12px;
    border: 1px solid var(--border-dark);
    background: var(--bg-card-soft);
    margin: 0 auto;
    transition: transform 0.2s ease-out;
}

.hero-image-frame {
    position: relative;
    width: 100%;
    height: 100%;
    border: 1px solid var(--accent-border);
    overflow: hidden;
}

.hero-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.scroll-indicator {
    position: absolute;
    left: 50%;
    bottom: 25px;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    flex-direction: column;
    gap: 8px;
}

.scroll-indicator span {
    color: var(--text-muted);
    font-size: 9px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 32px;
    background: linear-gradient(to bottom, var(--accent), transparent);
}

/* =========================================================
   07. ABOUT
========================================================= */
.about-container {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 70px;
    align-items: center;
}

.about-photo-placeholder {
    aspect-ratio: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.about-photo-placeholder::after {
    content: "";
    position: absolute;
    inset: 12px;
    border: 1px solid var(--accent-border);
    pointer-events: none;
}

.about-photo-placeholder span {
    color: var(--text-muted);
    font-size: 10px;
    letter-spacing: 3px;
    font-weight: 700;
}

.about-content h3 {
    font-size: clamp(24px, 3.5vw, 36px);
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-secondary);
    font-size: 14.5px;
    margin-bottom: 16px;
    max-width: 620px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin-top: 35px;
    border-top: 1px solid var(--border-dark);
    border-bottom: 1px solid var(--border-dark);
}

.about-stat {
    padding: 18px 10px;
}

.about-stat + .about-stat {
    border-left: 1px solid var(--border-dark);
}

.stat-number {
    display: block;
    color: var(--accent);
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 4px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* =========================================================
   08. SKILLS
========================================================= */
.skills-category {
    margin-bottom: 60px;
}

.skills-category:last-child {
    margin-bottom: 0;
}

.skills-category-heading {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 22px;
}

.category-number {
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
}

.skills-category-heading h3 {
    font-size: 19px;
    letter-spacing: -0.5px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}

.skills-category-fmcg .skills-grid {
    grid-template-columns: repeat(3, 1fr);
    max-width: 850px;
}

.skill-card {
    min-height: 155px;
    padding: 22px;
    border: 1px solid var(--border-dark);
    background: var(--bg-card);
    transition: var(--transition-fast);
}

.skill-card:hover {
    border-color: var(--accent-border);
    transform: translateY(-5px);
    box-shadow: var(--shadow-card);
}

.skill-number {
    color: var(--text-muted);
    font-size: 10px;
    margin-bottom: 28px;
}

.skill-info h4 {
    font-size: 16px;
    margin-bottom: 6px;
}

.skill-info p {
    color: var(--text-secondary);
    font-size: 11.5px;
    line-height: 1.5;
}

/* =========================================================
   09. PROJECTS SECTION (UNIFIED 3-COLUMN GRID)
========================================================= */
.projects-header {
    margin-bottom: 45px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: 12px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-fast);
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-border);
    box-shadow: var(--shadow-card);
}

.project-img-box {
    width: 100%;
    height: 180px;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 18px;
    background: var(--bg-main);
    border: 1px solid var(--border-dark);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project-card:hover .project-img {
    transform: scale(1.04);
}

.project-category {
    font-size: 10px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 8px;
}

.project-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
    line-height: 1.35;
}

.project-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 18px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 22px;
}

.tag {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-dark);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
}

.btn-detail {
    width: 100%;
    padding: 11px 0;
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    font-size: 12.5px;
    font-weight: 600;
    transition: var(--transition-fast);
    text-align: center;
}

.btn-detail:hover:not(.disabled) {
    background: var(--accent);
    color: var(--black);
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(204, 255, 0, 0.4);
}

.project-card.coming-soon {
    opacity: 0.55;
    border-style: dashed;
}

.placeholder-box {
    display: flex;
    justify-content: center;
    align-items: center;
}

.placeholder-icon {
    font-size: 2rem;
    color: var(--text-muted);
}

.btn-detail.disabled {
    cursor: not-allowed;
    color: var(--text-muted);
    border-color: var(--border-dark);
}

/* =========================================================
   10. EXPERIENCE
========================================================= */
.experience-list {
    position: relative;
}

.experience-list::before {
    content: "";
    position: absolute;
    left: 170px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--border-dark);
}

.experience-item {
    display: grid;
    grid-template-columns: 140px 40px minmax(0, 1fr);
    gap: 20px;
    position: relative;
    padding-bottom: 70px;
}

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

.experience-year {
    text-align: right;
    padding-top: 4px;
    color: var(--text-secondary);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
}

.experience-marker {
    display: flex;
    justify-content: center;
}

.experience-marker span {
    width: 11px;
    height: 11px;
    background: var(--accent);
    border-radius: 50%;
    margin-top: 5px;
    box-shadow: 0 0 0 4px var(--bg-secondary), 0 0 0 6px var(--accent-border);
}

.experience-content {
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    padding: 30px;
    border-radius: 8px;
}

.experience-type {
    color: var(--accent);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
}

.experience-content h3 {
    font-size: 22px;
    margin: 8px 0 4px;
}

.experience-content h4 {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}

.experience-content > p {
    color: var(--text-secondary);
    font-size: 13.5px;
    margin-bottom: 18px;
}

.experience-points {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 22px;
}

.experience-points li {
    color: var(--text-secondary);
    font-size: 13px;
    padding-left: 16px;
    position: relative;
}

.experience-points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 5px;
    height: 5px;
    background: var(--accent);
}

.experience-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.experience-tags span {
    padding: 4px 8px;
    border: 1px solid var(--border-dark);
    color: #969da7;
    font-size: 9px;
    border-radius: 3px;
}

/* =========================================================
   11. EDUCATION
========================================================= */
.education-card {
    display: grid;
    grid-template-columns: 60px minmax(0, 1fr);
    gap: 30px;
    padding: 35px;
    border: 1px solid var(--border-dark);
    background: var(--bg-card);
    margin-bottom: 25px;
    border-radius: 8px;
}

.education-number {
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
}

.education-period {
    color: var(--accent);
    font-size: 10px;
    letter-spacing: 2px;
    font-weight: 700;
}

.education-content h3 {
    font-size: 26px;
    margin: 8px 0 2px;
}

.education-content h4 {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
}

.education-content > p {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 4px;
}

.education-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin-top: 28px;
    border-top: 1px solid var(--border-dark);
    padding-top: 18px;
}

.education-detail {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.education-detail-label {
    color: var(--text-muted);
    font-size: 9px;
    letter-spacing: 1.5px;
}

.education-detail strong {
    font-size: 13px;
    font-weight: 600;
}

.education-project {
    padding: 30px;
    border: 1px solid var(--border-dark);
    background: var(--bg-card-soft);
    border-radius: 8px;
}

.education-project-label {
    color: var(--accent);
    font-size: 10px;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 12px;
}

.education-project h3 {
    font-size: 20px;
    line-height: 1.35;
    margin-bottom: 12px;
}

.education-project p {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 18px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.project-tech span {
    padding: 4px 8px;
    border: 1px solid var(--border-dark);
    color: var(--text-secondary);
    font-size: 10px;
    border-radius: 3px;
}

/* =========================================================
   12. CERTIFICATIONS
========================================================= */
.certification-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.certification-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    transition: var(--transition-fast);
    border-radius: 8px;
}

.certification-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-border);
    box-shadow: var(--shadow-card);
}

.certification-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.certification-number {
    color: var(--accent);
    font-size: 10px;
    font-weight: 700;
}

.certification-status {
    color: var(--accent);
    font-size: 9px;
    letter-spacing: 1.5px;
    font-weight: 700;
}

.certification-icon {
    width: 65px;
    height: 65px;
    border: 1px solid var(--accent-border);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 800;
    margin-bottom: 20px;
}

.certification-authority {
    display: block;
    color: var(--text-muted);
    font-size: 9px;
    letter-spacing: 1.5px;
}

.certification-card h3 {
    font-size: 22px;
    margin: 8px 0 6px;
}

.certification-field {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 20px;
}

.certification-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--border-dark);
    border-bottom: 1px solid var(--border-dark);
    margin-bottom: 18px;
}

.certification-detail {
    padding: 12px 8px;
}

.certification-detail + .certification-detail {
    border-left: 1px solid var(--border-dark);
}

.certification-detail span {
    display: block;
    color: var(--text-muted);
    font-size: 8px;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.certification-detail strong {
    font-size: 10px;
    font-weight: 600;
}

.certification-competencies {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.certification-competencies span {
    padding: 4px 7px;
    border: 1px solid var(--border-dark);
    color: #969da7;
    font-size: 8px;
    border-radius: 3px;
}

.certification-link {
    display: inline-flex;
    align-items: center;
    background: transparent;
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
}

.certification-link::after {
    content: " ↗";
}

.certification-placeholder {
    opacity: 0.6;
}

.certification-placeholder .certification-icon {
    border-color: var(--border-dark);
    color: var(--text-muted);
}

.certification-placeholder-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 20px;
}

.certification-placeholder-list span {
    color: var(--text-muted);
    font-size: 11px;
    padding-left: 12px;
    position: relative;
}

.certification-placeholder-list span::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    width: 4px;
    height: 4px;
    background: var(--text-muted);
}

/* =========================================================
   13. MODALS (BNSP & PROJECT DETAIL)
========================================================= */
.custom-modal,
.certificate-modal {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.custom-modal.active,
.certificate-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay,
.certificate-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(10px);
}

.modal-content,
.certificate-modal-content {
    position: relative;
    z-index: 2;
    width: min(950px, 100%);
    max-height: 90vh;
    overflow-y: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-dark);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-card);
}

.modal-close,
.certificate-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 5;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-dark);
    background: var(--bg-main);
    color: var(--white);
    font-size: 22px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.modal-close:hover,
.certificate-modal-close:hover {
    color: var(--accent);
    border-color: var(--accent-border);
}

.certificate-modal-header {
    margin-bottom: 20px;
    padding-right: 40px;
}

.certificate-modal-header span {
    color: var(--accent);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 2px;
}

.certificate-modal-header strong {
    font-size: 19px;
    display: block;
    margin-top: 4px;
}

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

.certificate-image-wrapper {
    background: var(--bg-main);
    border: 1px solid var(--border-dark);
    padding: 12px;
}

.certificate-image-label {
    display: block;
    color: var(--text-muted);
    font-size: 8px;
    letter-spacing: 1.5px;
    font-weight: 700;
    margin-bottom: 10px;
}

.certificate-image-wrapper img {
    width: 100%;
    border: 1px solid var(--border-dark);
}

/* =========================================================
   14. CONTACT & FOOTER
========================================================= */
.contact-section {
    background: var(--bg-light) !important;
    color: var(--text-dark);
}

.contact-container {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 70px;
}

.contact-intro .section-label {
    color: #576d00;
}

.contact-intro h2 {
    font-size: clamp(34px, 4.5vw, 56px);
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 20px;
}

.contact-intro > p:last-child {
    color: #595d63;
    font-size: 14px;
    max-width: 440px;
}

.contact-links {
    border-top: 1px solid var(--border-light);
}

.contact-item {
    display: grid;
    grid-template-columns: 45px minmax(0, 1fr);
    gap: 18px;
    padding: 22px 0;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-fast);
}

.contact-item:hover {
    padding-left: 8px;
}

.contact-number {
    color: #8c9198;
    font-size: 10px;
    font-weight: 700;
}

.contact-label {
    display: block;
    color: #81878e;
    font-size: 9px;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-item strong {
    font-size: 13.5px;
    font-weight: 600;
    word-break: break-word;
}

.contact-github-hidden {
    display: none;
}

.footer {
    background: var(--bg-main);
    border-top: 1px solid var(--border-dark);
    padding: 30px 0;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 16px;
    font-weight: 800;
}

.footer-logo span {
    color: var(--accent);
}

.footer-container > div p {
    color: var(--text-muted);
    font-size: 10px;
    margin-top: 2px;
}

.footer-copy {
    color: var(--text-muted);
    font-size: 10px;
}

/* =========================================================
   15. ANIMATIONS & RESPONSIVE BREAKPOINTS
========================================================= */
@keyframes pulseIcon {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.15); opacity: 1; text-shadow: 0 0 15px var(--accent); }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@media (max-width: 1050px) {
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 800px) {
    .nav-menu { display: none; }
    .menu-toggle { display: flex; }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-label, .hero-education, .hero-buttons {
        justify-content: center;
    }
    .hero-description {
        margin: 0 auto 30px;
    }
    .scroll-indicator { display: none; }

    .about-container { grid-template-columns: 1fr; }
    .about-image { max-width: 320px; margin: 0 auto; }
    .about-stats { grid-template-columns: 1fr; }
    .about-stat + .about-stat {
        border-left: 0;
        border-top: 1px solid var(--border-dark);
    }

    .experience-list::before,
    .experience-marker { display: none; }
    .experience-item {
        grid-template-columns: 1fr;
        padding-bottom: 40px;
    }
    .experience-year { text-align: left; }

    .education-card { grid-template-columns: 1fr; }
    .education-details { grid-template-columns: 1fr; gap: 14px; }

    .certification-grid { grid-template-columns: 1fr; }
    .certification-details { grid-template-columns: 1fr; }
    .certification-detail + .certification-detail {
        border-left: 0;
        border-top: 1px solid var(--border-dark);
    }
    .certificate-gallery { grid-template-columns: 1fr; }

    .contact-container { grid-template-columns: 1fr; gap: 40px; }
    .footer-container { flex-direction: column; align-items: flex-start; gap: 15px; }
}

@media (max-width: 600px) {
    .skills-grid,
    .skills-category-fmcg .skills-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    .btn { width: 100%; }
    .hero-buttons { width: 100%; }
}