/*Core Theme Tokens*/
:root {
    --bg: #faf7f9;
    --bg-elevated: #ffffff;
    --bg-soft: #f5ecf2;
    --text-main: #222022;
    --text-muted: #5e555a;
    --border-subtle: #ead4df;

    --pink-accent: #e89ab7;
    --pink-accent-soft: rgba(232, 154, 183, 0.14);
    --pink-deep: #c4668e;

    --shadow-soft: 0 14px 40px rgba(0, 0, 0, 0.06);
    --shadow-strong: 0 18px 55px rgba(0, 0, 0, 0.12);

    --transition-fast: 0.18s ease-out;
    --transition-med: 0.28s ease;
}

body.dark {
    --bg: #101014;
    --bg-elevated: #181820;
    --bg-soft: #20202a;
    --text-main: #f7f2f5;
    --text-muted: #b6aab4;
    --border-subtle: #3e2c3a;

    --pink-accent: #f1a2c5;
    --pink-accent-soft: rgba(241, 162, 197, 0.18);
    --pink-deep: #d7729f;

    --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.7);
    --shadow-strong: 0 26px 80px rgba(0, 0, 0, 0.9);
}

/*Base Layout*/
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top left, var(--pink-accent-soft), transparent 55%),
                radial-gradient(circle at bottom right, rgba(0, 0, 0, 0.03), transparent 60%),
                var(--bg);
    color: var(--text-main);
    padding: 32px 16px 40px;
    transition:
        background-color var(--transition-med),
        color var(--transition-med),
        background var(--transition-med);
}

main {
    max-width: 1040px;
    margin: 0 auto;
}

.section {
    margin: 40px auto;
    max-width: 1040px;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.section-header h2 {
    margin: 0;
    font-size: 1.4rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 600;
}

.section-accent {
    flex: 1;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--pink-accent), transparent);
    opacity: 0.75;
}

.section p {
    margin: 0 0 0.9rem;
    line-height: 1.7;
    color: var(--text-muted);
}

.section-divider {
    max-width: 1040px;
    margin: 40px auto 32px;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(232, 154, 183, 0.3) 25%,
        rgba(232, 154, 183, 0.55) 50%,
        rgba(232, 154, 183, 0.3) 75%,
        transparent 100%
    );
    opacity: 0.8;
}

/*Header*/
.site-header {
    max-width: 1040px;
    margin: 0 auto 32px;
    padding: 20px 18px 22px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--bg-elevated), var(--bg-soft));
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(234, 212, 223, 0.35);
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.identity {
    flex: 1;
    min-width: 0;
}

.identity h1 {
    margin: 0 0 4px;
    font-size: 1.8rem;
    letter-spacing: 0.04em;
}

#course-year {
    margin: 0;
    font-size: 0.92rem;
    color: var(--text-muted);
}

.header-profile {
    display: flex;
    align-items: center;
    gap: 18px;
}

#profile-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--pink-accent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    padding: 3px;
    background: radial-gradient(circle at 20% 10%, #ffe4ef 0, #ffe4ef 40%, #ffffff 100%);
    flex-shrink: 0;
}

.header-tagline {
    flex: 1;
}

.role-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 999px;
    border: 1px solid var(--pink-accent-soft);
    background: rgba(255, 255, 255, 0.7);
    color: var(--pink-deep);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin: 0 0 10px;
}

body.dark .role-pill {
    background: rgba(16, 16, 20, 0.9);
}

.short-intro {
    margin: 0;
    font-size: 0.95rem;
}

/*Theme Toggle*/
#theme-toggle {
    border-radius: 999px;
    border: 1px solid var(--pink-accent-soft);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), var(--bg-soft));
    color: var(--pink-deep);
    padding: 7px 14px;
    cursor: pointer;
    font-size: 0.86rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition:
        box-shadow var(--transition-fast),
        transform var(--transition-fast),
        background var(--transition-med),
        border-color var(--transition-med),
        color var(--transition-med);
}

body.dark #theme-toggle {
    background: radial-gradient(circle at 20% 0, rgba(241, 162, 197, 0.22), rgba(16, 16, 20, 0.9));
}

#theme-toggle .theme-icon {
    font-size: 1rem;
}

#theme-toggle:hover {
    box-shadow: 0 0 0 1px var(--pink-accent-soft), 0 0 26px rgba(232, 154, 183, 0.35);
    transform: translateY(-1px);
}

#theme-toggle:active {
    transform: translateY(0);
    box-shadow: 0 0 0 1px var(--pink-accent-soft);
}

/*Certificates*/
.certificate-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    max-width: 1040px;
    margin-inline: auto;
}

.certificate-card {
    display: grid;
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: 18px;
    padding: 18px 22px;
    border-radius: 18px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-soft);
    transition:
        box-shadow var(--transition-med),
        transform var(--transition-med),
        border-color var(--transition-med),
        background var(--transition-med);
}

.certificate-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-strong);
    border-color: var(--pink-accent);
}

.certificate-image-wrapper {
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    background: radial-gradient(circle at 10% 0, rgba(232, 154, 183, 0.22), transparent 65%);
}

.certificate-image-wrapper::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.7);
    mix-blend-mode: soft-light;
    pointer-events: none;
}

.certificate-image-wrapper img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.01);
    transition: transform var(--transition-med);
}

.certificate-card:hover .certificate-image-wrapper img {
    transform: scale(1.04);
}

.certificate-body h3 {
    margin: 0 0 6px;
    font-size: 1.05rem;
}

.certificate-body p {
    font-size: 0.93rem;
}

/*Projects*/
.projects-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    max-width: 1040px;
    margin-inline: auto;
}

.project-card {
    display: grid;
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: 18px;
    padding: 18px 22px;
    border-radius: 18px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    transition:
        box-shadow var(--transition-med),
        transform var(--transition-med),
        border-color var(--transition-med),
        background var(--transition-med);
}

.project-link {
    display: contents;
    text-decoration: none;
    color: inherit;
}

.project-image-wrapper {
    position: relative;
    overflow: hidden;
    min-height: 180px;
    max-height: 220px;
}

.project-image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transform-origin: center;
    transition:
        transform var(--transition-med),
        filter var(--transition-med);
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: var(--pink-accent);
    box-shadow: var(--shadow-strong);
}

.project-card:hover .project-image {
    transform: scale(1.03);
    filter: brightness(1.03);
}

.project-body {
    padding: 0;
}

.project-body h3 {
    margin: 0 0 6px;
    font-size: 1.05rem;
}

.project-body p {
    margin: 0 0 6px;
    font-size: 0.93rem;
    color: var(--text-muted);
}

.project-card:focus-within {
    outline: 2px solid var(--pink-accent);
    outline-offset: 2px;
}

/*Footer*/
.site-footer {
    max-width: 1040px;
    margin: 28px auto 0;
    padding-top: 12px;
    border-top: 1px solid rgba(234, 212, 223, 0.5);
    text-align: right;
}

.footer-text {
    margin: 0;
    font-size: 0.8rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/*Contact*/
.contact-icon-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 6px;
}

.contact-icon-button {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    border: 1px solid var(--pink-accent-soft);
    background: radial-gradient(circle at 30% 0, rgba(232, 154, 183, 0.25), transparent 70%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--pink-deep);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    transition:
        box-shadow var(--transition-fast),
        transform var(--transition-fast),
        border-color var(--transition-med),
        background var(--transition-med);
}

.contact-icon-button:hover {
    transform: translateY(-1px) scale(1.03);
    border-color: var(--pink-accent);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.35);
}

.contact-icon-symbol {
    font-size: 1.2rem;
    line-height: 1;
}

@media (max-width: 768px) {
    body {
        padding: 20px 14px 28px;
    }

    main {
        max-width: 100%;
    }

    .section {
        margin: 32px auto;
        padding: 0 4px;
    }

    .section-header h2 {
        font-size: 1.2rem;
    }

    .site-header {
        padding: 16px 14px 18px;
        gap: 16px;
    }

    .header-main {
        flex-wrap: wrap;
    }

    .identity h1 {
        font-size: 1.5rem;
    }

    #course-year {
        font-size: 0.85rem;
    }

    .header-profile {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 14px;
    }

    #profile-img {
        width: 100px;
        height: 100px;
    }

    .header-tagline {
        width: 100%;
    }

    .role-pill {
        font-size: 0.72rem;
        padding: 4px 10px;
    }

    .short-intro {
        font-size: 0.9rem;
    }

    .certificate-card {
        grid-template-columns: minmax(0, 1fr);
        padding: 14px 14px 16px;
        gap: 14px;
    }

    .certificate-image-wrapper {
        max-height: 200px;
    }

    .project-card {
        grid-template-columns: minmax(0, 1fr);
        padding: 14px 14px 16px;
        gap: 14px;
    }

    .project-image-wrapper {
        min-height: 160px;
        max-height: 200px;
    }

    .project-body h3 {
        font-size: 1rem;
    }

    .project-body p {
        font-size: 0.88rem;
    }

    .tech-stack {
        font-size: 0.85rem;
    }

    .contact-icon-row {
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
    }

    .footer-text {
        text-align: center;
        font-size: 0.75rem;
    }
}

@media (max-width: 520px) {
    body {
        padding: 16px 12px 24px;
    }

    .site-header {
        padding: 14px 12px 16px;
        border-radius: 16px;
    }

    .identity h1 {
        font-size: 1.3rem;
    }

    #course-year {
        font-size: 0.8rem;
    }

    .section-header h2 {
        font-size: 1.1rem;
    }

    .section {
        margin: 28px auto;
    }

    .section p {
        font-size: 0.9rem;
    }

    #profile-img {
        width: 90px;
        height: 90px;
    }

    .role-pill {
        font-size: 0.7rem;
        padding: 4px 8px;
    }

    .short-intro {
        font-size: 0.85rem;
    }

    .certificate-card,
    .project-card {
        padding: 12px 12px 14px;
        border-radius: 14px;
    }

    .certificate-body h3,
    .project-body h3 {
        font-size: 0.95rem;
    }

    .certificate-body p,
    .project-body p {
        font-size: 0.85rem;
    }

    .project-image-wrapper {
        min-height: 140px;
        max-height: 180px;
    }

    .contact-icon-button {
        width: 32px;
        height: 32px;
    }

    .contact-icon-symbol {
        font-size: 1.1rem;
    }

    #theme-toggle {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

@media (max-width: 380px) {
    .identity h1 {
        font-size: 1.2rem;
    }

    #course-year {
        font-size: 0.75rem;
    }

    .section-header h2 {
        font-size: 1rem;
    }

    .section p {
        font-size: 0.85rem;
    }

    #profile-img {
        width: 80px;
        height: 80px;
    }
}