:root {
    --brand-bg: #E7F2EF;
    --brand-accent: #19183B;
    --brand-light: #A1C2BD;
    --brand-muted: #708993;
}

html {
    scroll-behavior: smooth;
    /* Offset for the sticky navbar so headings aren't hidden behind it */
    scroll-padding-top: 90px;
}

body {
    font-family: 'Raleway', sans-serif;
    background-color: var(--brand-bg);
    color: #000000;
    overflow-x: hidden;
    line-height: 1.6;
    font-size: 1rem;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
}

/* Typography Hierarchy */
h1,
h2,
h3,
h4,
h5,
h6,
.navbar-brand,
.display-3 {
    font-family: 'Quattrocento', serif;
    font-optical-sizing: auto;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 600;
}

h3 {
    font-size: clamp(1.3rem, 2.5vw, 1.75rem);
    font-weight: 600;
}

h4 {
    font-size: 1.35rem;
    font-weight: 600;
}

h5 {
    font-size: 1.15rem;
    font-weight: 600;
}

h6 {
    font-size: 1rem;
    font-weight: 600;
}

/* Navbar */
.navbar-custom {
    background-color: var(--brand-accent);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: box-shadow 0.3s ease;
}

.navbar-custom .btn-light {
    color: var(--brand-accent);
}

.bi-chevron-right {
    color: var(--brand-accent);
}

.card-custom h5 {
    color: var(--brand-accent);
}

/* Hero Section */
.hero {
    background:
        radial-gradient(rgba(231, 242, 239, 0.1) 1px, transparent 1px),
        linear-gradient(135deg, var(--brand-accent) 0%, var(--brand-light) 100%);
    background-size: 24px 24px, 100% 100%;
    color: var(--brand-bg);
    padding: 90px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: rgba(231, 242, 239, 0.05);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -60px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(231, 242, 239, 0.04);
    pointer-events: none;
}

.hero-avatar {
    border: 4px solid rgba(231, 242, 239, 0.25);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.hero-avatar:hover {
    transform: scale(1.03);
    box-shadow: 0 20px 50px rgba(25, 24, 59, 0.25) !important;
}

/* Section Titles */
.section-title {
    position: relative;
    padding-bottom: 14px;
    margin-bottom: 32px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    font-size: 1.1rem;
    font-family: 'Raleway', sans-serif;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 45px;
    height: 3px;
    background-color: var(--brand-accent);
    border-radius: 2px;
}

/* Experience Timeline */
.experience-item {
    border-left: 2px solid var(--brand-accent);
    padding-left: 24px;
    position: relative;
    margin-bottom: 30px;
}

.experience-item::before {
    content: '';
    position: absolute;
    left: -9px;
    top: 4px;
    width: 16px;
    height: 16px;
    background-color: var(--brand-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(25, 24, 59, 0.15);
}

/* Buttons */
.btn-brand {
    background-color: var(--brand-accent);
    color: var(--brand-bg);
    border: none;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
    border-radius: 8px;
}

.btn-brand:hover {
    background-color: #708993;
    color: var(--brand-bg);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(25, 24, 59, 0.35);
}

/* Skill Badges */
.badge-skill {
    background-color: var(--brand-accent);
    color: var(--brand-bg);
    padding: 7px 16px;
    border-radius: 50px;
    font-size: 0.82rem;
    display: inline-block;
    margin: 4px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.badge-skill:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(25, 24, 59, 0.3);
}

.badge-outline {
    border: 1.5px solid var(--brand-accent);
    color: var(--brand-accent);
    padding: 7px 16px;
    border-radius: 50px;
    font-size: 0.82rem;
    display: inline-block;
    margin: 4px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.badge-outline:hover {
    background-color: var(--brand-accent);
    color: var(--brand-bg);
}

/* Cards */
.card-custom {
    background: #E7F2EF;
    border: 1px solid rgba(25, 24, 59, 0.1);
    border-radius: 16px;
    padding: 26px;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-custom:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(25, 24, 59, 0.12);
}

/* Services card icon highlight */
#services .card-custom {
    transition: all 0.3s ease;
}

#services .card-custom:hover {
    background-color: var(--brand-accent);
    color: var(--brand-bg);
    transform: translateY(-8px);
}

#services .card-custom .bi.fs-1 {
    transition: all 0.3s ease;
    color: var(--brand-accent);
}

#services .card-custom:hover .bi.fs-1 {
    transform: scale(1.2) translateY(-2px);
    color: var(--brand-bg);
}

/* Project Cards with Preview */
.project-card {
    background: #E7F2EF;
    border-radius: 16px;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 20px rgba(25, 24, 59, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 48px rgba(25, 24, 59, 0.18);
}

.project-card-preview {
    overflow: hidden;
    background-color: #A1C2BD;
    flex-shrink: 0;
    border-bottom: 3px solid #A1C2BD;
}

.project-card-preview iframe {
    width: 100%;
    height: 100%;
    border: none;
    pointer-events: none;
    display: block;
    transition: transform 0.4s ease;
}

.project-card:hover .project-card-preview iframe {
    transform: scale(1.03);
}

.project-card-body {
    padding: 18px 20px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.project-category {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 3px 11px;
    border-radius: 50px;
    width: fit-content;
}

.pc-education {
    background-color: #19183B;
    color: #E7F2EF;
}

.pc-personal {
    background-color: #708993;
    color: #E7F2EF;
}

.pc-community {
    background-color: #A1C2BD;
    color: #19183B;
}

.pc-events {
    background-color: #19183B;
    color: #E7F2EF;
}

.project-name {
    font-size: 1rem;
    font-weight: 700;
    color: #19183B;
    margin: 0;
    line-height: 1.35;
}

.project-desc {
    font-size: 0.82rem;
    color: #000000;
    opacity: 0.65;
    margin: 0;
    flex: 1;
    line-height: 1.5;
}

.project-visit-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    padding: 7px 16px;
    background-color: #19183B;
    color: #E7F2EF;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    border-radius: 8px;
    text-decoration: none;
    width: fit-content;
    transition: background-color 0.25s ease, transform 0.2s ease;
}

.project-visit-btn:hover {
    background-color: #708993;
    color: #E7F2EF;
    transform: translateX(2px);
}

/* Project Filters */
.filter-btn {
    background-color: transparent;
    border: 1.5px solid var(--brand-accent);
    color: var(--brand-accent);
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0 6px 8px 0;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--brand-accent);
    color: var(--brand-bg);
    transform: translateY(-2px);
}

.project-item {
    animation: projectFadeIn 0.5s ease;
}

.project-item.hide {
    display: none !important;
}

/* CTA block */
.cta-block {
    background: #E7F2EF;
    border: 1px solid rgba(25, 24, 59, 0.1);
    border-radius: 16px;
    padding: 28px 32px;
}

/* Table */
.table {
    color: #000000;
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--brand-accent) 0%, #708993 100%);
    color: var(--brand-bg);
    padding: 50px 0 40px;
}

footer a {
    transition: opacity 0.2s ease, transform 0.2s ease;
    display: inline-block;
}

footer a:hover {
    opacity: 0.75;
    transform: translateY(-2px);
}

/* Scroll Animation */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: all 0.75s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Back to Top */
#btn-back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    opacity: 0;
    visibility: hidden;
    z-index: 99;
    border-radius: 50%;
    width: 46px;
    height: 46px;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(25, 24, 59, 0.3);
    transition: all 0.3s ease;
    transform: translateY(15px);
}

#btn-back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#btn-back-to-top:hover {
    transform: translateY(-2px);
}

@keyframes projectFadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Badge Animations */
.reveal:not(.active) .badge-skill,
.reveal:not(.active) .badge-outline {
    opacity: 0;
}

.reveal.active .badge-skill,
.reveal.active .badge-outline {
    opacity: 1;
    animation: badgePop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) backwards;
}

@keyframes badgePop {
    from {
        opacity: 0;
        transform: scale(0.5);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Typewriter Effect */
.typing-cursor::after,
.typing-cursor-done::after {
    content: '|';
    display: inline-block;
    margin-left: 4px;
    color: var(--brand-bg);
}

.typing-cursor::after {
    animation: typingBlink 0.7s infinite step-end;
}

.typing-cursor-done::after {
    animation: typingBlink 1.5s infinite step-end;
    opacity: 0.6;
}

@keyframes typingBlink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

/* ===== Section Panel Backgrounds ===== */

main>section {
    padding: 40px 44px;
    border-radius: 24px;
}

/* Professional Profile — soft light */
#profile {
    background-color: #E7F2EF;
    border: 1px solid rgba(25, 24, 59, 0.08);
}

/* Experience — deep navy */
#experience {
    background-color: #19183B;
    color: #E7F2EF;
}

#experience .section-title {
    color: #E7F2EF;
}

#experience .section-title::after {
    background-color: #A1C2BD;
}

#experience .experience-item {
    border-left-color: #A1C2BD;
}

#experience .experience-item::before {
    background-color: #A1C2BD;
    box-shadow: 0 0 0 4px rgba(161, 194, 189, 0.2);
}

#experience .text-muted {
    color: #A1C2BD !important;
}

/* Key Contributions — light, clean */
#contributions {
    background-color: #E7F2EF;
    border: 1px solid rgba(25, 24, 59, 0.08);
}

/* Portfolio — teal: cards float on teal */
#portfolio {
    background-color: #A1C2BD;
}

#portfolio .section-title,
#portfolio .lead,
#portfolio p {
    color: #19183B;
}

#portfolio .filter-btn {
    border-color: #19183B;
    color: #19183B;
}

#portfolio .filter-btn:hover,
#portfolio .filter-btn.active {
    background-color: #19183B;
    color: #E7F2EF;
}

#portfolio .card-custom {
    background: #E7F2EF;
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(25, 24, 59, 0.12);
}

#portfolio .cta-block {
    background: #E7F2EF;
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(25, 24, 59, 0.12);
}

/* Services — deep navy: teal cards on dark */
#services {
    background-color: #19183B;
    color: #E7F2EF;
}

#services .section-title {
    color: #E7F2EF;
}

#services .section-title::after {
    background-color: #A1C2BD;
}

#services .card-custom {
    background: #A1C2BD;
    border-color: transparent;
    color: #19183B;
}

#services .card-custom h5 {
    color: #19183B;
}

#services .card-custom .bi.fs-1 {
    color: #19183B;
}

#services .card-custom:hover {
    background-color: #E7F2EF;
    color: #19183B;
    transform: translateY(-8px);
}

#services .card-custom:hover .bi.fs-1 {
    color: #19183B;
}

/* Skills — blue-grey: light badges on mid-tone */
#skills {
    background-color: #708993;
    color: #E7F2EF;
}

#skills .section-title {
    color: #E7F2EF;
}

#skills .section-title::after {
    background-color: #E7F2EF;
}

#skills h5 {
    color: #E7F2EF;
}

#skills .badge-skill {
    background-color: #19183B;
    color: #E7F2EF;
}

#skills .badge-outline {
    border-color: #E7F2EF;
    color: #E7F2EF;
}

#skills .badge-outline:hover {
    background-color: #E7F2EF;
    color: #708993;
}

/* Beyond the Code — teal: card on teal */
#about {
    background-color: #A1C2BD;
}

#about .section-title {
    color: #19183B;
}

#about .card-custom {
    background: #E7F2EF;
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(25, 24, 59, 0.1);
}