/* =========================================================
   TOKENS
========================================================= */
:root {
    --color-bg: #FFFFFF;
    --color-bg-soft: #F4F8FC;
    --color-navy: #224B7A;
    --color-navy-dark: #16314F;
    --color-navy-light: #5D84AC;
    --color-text: #1E2230;
    --color-text-muted: #5B6472;
    --color-border: #E3E8EF;

    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --sidebar-width: 300px;
    --content-max: 720px;

    --space-1: 0.5rem;
    --space-2: 1rem;
    --space-3: 1.75rem;
    --space-4: 2.75rem;
    --space-5: 4.5rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }

:focus-visible {
    outline: 2px solid var(--color-navy);
    outline-offset: 3px;
}

/* =========================================================
   LAYOUT
========================================================= */
.layout {
    display: flex;
    min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--color-navy-dark);
    color: #EAF0F7;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    padding: var(--space-4) var(--space-3) var(--space-3);
    overflow-y: auto;
}

.sidebar__top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.sidebar__brand { flex: 1; }

.sidebar__avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-navy);
    border: 1px solid rgba(255,255,255,0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #FFFFFF;
    margin-bottom: var(--space-2);
}
.sidebar__avatar--photo {
    object-fit: cover;
    background: none;
    padding: 0;
}

.sidebar__name {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.25;
    margin: 0 0 0.35rem;
    color: #FFFFFF;
}

.sidebar__role {
    margin: 0;
    font-size: 0.9rem;
    color: #A9C0D8;
}

.sidebar__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 34px;
    height: 34px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}
.sidebar__toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background: #EAF0F7;
    border-radius: 2px;
}

.sidebar__nav {
    margin-top: var(--space-5);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 1;
}

.sidebar__nav > ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.nav-link {
    display: block;
    padding: 0.5rem 0.65rem;
    border-radius: 8px;
    font-size: 0.95rem;
    color: #C7D7E7;
    transition: background 0.15s ease, color 0.15s ease;
}
.nav-link:hover { color: #FFFFFF; }
.nav-link.is-active {
    background: rgba(255,255,255,0.09);
    color: #FFFFFF;
}

.sidebar__socials {
    margin-top: var(--space-5);
    padding-top: var(--space-3);
    border-top: 1px solid rgba(255,255,255,0.12);
}
.sidebar__socials-label {
    font-size: 0.75rem;
    color: #7E9CB8;
    margin: 0 0 var(--space-2);
}
.sidebar__socials ul { display: flex; flex-direction: column; gap: 0.6rem; }
.sidebar__socials a {
    display: flex;
    flex-direction: column;
    font-size: 0.85rem;
}
.sidebar__social-label { color: #7E9CB8; font-size: 0.72rem; }
.sidebar__social-value { color: #EAF0F7; }
.sidebar__socials a:hover .sidebar__social-value { color: #FFFFFF; text-decoration: underline; }

/* ---------- Content ---------- */
.content {
    margin-left: var(--sidebar-width);
    width: 100%;
    padding: var(--space-5) var(--space-4);
}

.section {
    max-width: var(--content-max);
    padding-block: var(--space-5);
    border-bottom: 1px solid var(--color-border);
}
.section:last-of-type { border-bottom: none; }

.section__heading {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
    margin: 0 0 var(--space-3);
    color: var(--color-navy-dark);
}
.section__index {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-navy-light);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.15rem 0.55rem;
}

.section__lead {
    color: var(--color-text-muted);
    font-size: 1.02rem;
    max-width: 60ch;
}

/* =========================================================
   HERO
========================================================= */
.hero {
    padding-top: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}
.hero__eyebrow {
    font-size: 0.85rem;
    color: var(--color-navy-light);
    margin: 0 0 var(--space-2);
}
.hero__title {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(1.9rem, 3.4vw, 2.7rem);
    line-height: 1.28;
    color: var(--color-text);
    margin: 0 0 var(--space-4);
    max-width: 22ch;
}
.hero__actions {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.75rem 1.4rem;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn--primary {
    background: var(--color-navy);
    color: #FFFFFF;
}
.btn--primary:hover { background: var(--color-navy-dark); }
.btn--ghost {
    background: transparent;
    color: var(--color-navy);
    border-color: var(--color-navy);
}
.btn--ghost:hover { background: var(--color-bg-soft); }
.btn--outline {
    margin-top: var(--space-3);
    background: transparent;
    color: var(--color-navy-dark);
    border-color: var(--color-border);
}
.btn--outline:hover { border-color: var(--color-navy); }

/* =========================================================
   SKILLS
========================================================= */
.skills {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
}
.skills__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--color-navy-dark);
    margin: 0 0 var(--space-2);
}
.skills__list { display: flex; flex-direction: column; gap: 0.55rem; }
.skills__list li {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    padding-left: 0.9rem;
    position: relative;
}
.skills__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-navy-light);
}

/* =========================================================
   PROJECTS
========================================================= */
.projects {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-top: var(--space-4);
}
.project-card {
    border: 1px solid var(--color-border);
    border-radius: 10px;
    overflow: hidden;
    background: var(--color-bg);
    transition: border-color 0.15s ease;
}
.project-card:hover { border-color: var(--color-navy-light); }

.project-card__thumb {
    height: 120px;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}
.project-card__thumb span {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: rgba(255,255,255,0.85);
    letter-spacing: 0.05em;
}

.project-card__body { padding: var(--space-3); }
.project-card__category {
    font-size: 0.75rem;
    color: var(--color-navy-light);
    margin: 0 0 0.35rem;
}
.project-card__title {
    font-family: var(--font-display);
    font-size: 1.08rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
    color: var(--color-text);
}
.project-card__desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin: 0 0 var(--space-2);
}
.project-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}
.project-card__tags li {
    font-size: 0.75rem;
    color: var(--color-navy-dark);
    background: var(--color-bg-soft);
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
}

/* =========================================================
   TIMELINE (Pengalaman)
========================================================= */
.timeline {
    margin-top: var(--space-4);
    padding-left: 0;
}
.timeline__item {
    position: relative;
    padding-left: var(--space-4);
    padding-bottom: var(--space-4);
    border-left: 2px solid var(--color-border);
}
.timeline__item:last-child { padding-bottom: 0; border-left-color: transparent; }
.timeline__marker {
    position: absolute;
    left: -7px;
    top: 0.15rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-bg);
    border: 2px solid var(--color-navy);
}
.timeline__period {
    font-size: 0.8rem;
    color: var(--color-navy-light);
    margin: 0 0 0.3rem;
}
.timeline__title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.15rem;
    color: var(--color-text);
}
.timeline__place {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0 0 0.5rem;
    font-style: italic;
}
.timeline__desc {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* =========================================================
   CONTACT FORM
========================================================= */
.alert {
    margin-top: var(--space-3);
    padding: 0.85rem 1.1rem;
    border-radius: 8px;
    font-size: 0.92rem;
}
.alert--success { background: #E7F3EA; color: #276B3D; border: 1px solid #BFE3C8; }
.alert--error { background: #FBEAEA; color: #9A3232; border: 1px solid #F1C6C6; }

.contact-form {
    margin-top: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    max-width: 560px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
}
.form-field { display: flex; flex-direction: column; gap: 0.4rem; }
.form-field label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-navy-dark);
}
.form-field input,
.form-field textarea {
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg-soft);
    color: var(--color-text);
    resize: vertical;
}
.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-navy);
    background: var(--color-bg);
}

.hp-field {
    position: absolute !important;
    left: -9999px !important;
    width: 1px; height: 1px;
    opacity: 0;
}

/* =========================================================
   FOOTER
========================================================= */
.site-footer {
    max-width: var(--content-max);
    padding: var(--space-3) 0 var(--space-5);
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width: 980px) {
    .skills { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
    .sidebar {
        position: sticky;
        width: 100%;
        height: auto;
        flex-direction: column;
        padding: var(--space-2) var(--space-3);
    }
    .sidebar__toggle { display: flex; }

    .sidebar__nav {
        display: none;
        margin-top: var(--space-3);
    }
    .sidebar__nav.is-open { display: flex; }

    .content {
        margin-left: 0;
        padding: var(--space-4) var(--space-2);
    }

    .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .skills { grid-template-columns: 1fr; }
    .projects { grid-template-columns: 1fr; }
    .hero__title { max-width: none; }
}