/*==================================================
    1. VARIABLES & CUSTOM PROPERTIES
==================================================*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    /* Colors */
    --bg: #070707;
    --bg-secondary: #101010;
    --card: #131313;
    --white: #ffffff;
    --text: #d6d6d6;
    --text-light: #a5a5a5;
    --sky: #63c7ff;
    --sky-dark: #2caeff;
    --border: rgba(255, 255, 255, .08);

    /* Shadows & Effects */
    --shadow: 0 20px 50px rgba(0, 0, 0, .45);
    --radius: 22px;
    --container: 1200px;

    /* Spacing System */
    --space-xs: 8px;
    --space-sm: 14px;
    --space-md: 20px;
    --space-lg: 28px;
    --space-xl: 40px;
    --section-space: 120px;

    /* Performance Optimized Transitions */
    --transition-fast: .2s cubic-bezier(.16, 1, .3, 1);
    --transition: .35s cubic-bezier(.16, 1, .3, 1);
    --transition-slow: .5s cubic-bezier(.16, 1, .3, 1);
}


/*==================================================
    2. BASE RESET & ACCESSIBILITY
==================================================*/

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--white);
    overflow-x: hidden;
    line-height: 1.8;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

button {
    font: inherit;
    border: none;
    outline: none;
    cursor: pointer;
    background: none;
}


/*==================================================
    3. GLOBAL BACKGROUND & SCROLLBAR
==================================================*/

body::before {
    content: "";
    position: fixed;
    top: -220px;
    right: -220px;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 199, 255, .10), transparent 70%);
    pointer-events: none;
    z-index: -2;
}

body::after {
    content: "";
    position: fixed;
    left: -220px;
    bottom: -220px;
    width: 650px;
    height: 650px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 199, 255, .06), transparent 70%);
    pointer-events: none;
    z-index: -2;
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #0b0b0b;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--sky), #3eaef7);
    border-radius: 20px;
}

::-webkit-scrollbar-thumb:hover {
    background: #82d8ff;
}

::selection {
    background: var(--sky);
    color: #000;
}

/* Focus States for Accessibility */
a:focus,
button:focus {
    outline: none;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--sky);
    outline-offset: 4px;
}


/*==================================================
    4. TYPOGRAPHY
==================================================*/

h1 {
    font-size: clamp(2.625rem, 5vw + 1rem, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -3px;
    margin-bottom: var(--space-lg);
}

h2 {
    font-size: clamp(2.125rem, 3.5vw + 1rem, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: var(--space-md);
}

h3 {
    font-size: 28px;
    font-weight: 700;
}

p {
    font-size: 17px;
    color: var(--text);
}


/*==================================================
    5. CONTAINER & SECTION
==================================================*/

.container {
    max-width: var(--container);
    margin: auto;
    padding: 0 var(--space-xl);
}

.section,
section {
    padding: var(--section-space) 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 70px;
}

.section-title span {
    display: inline-block;
    color: var(--sky);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-title h2 {
    font-size: clamp(2.5rem, 4.5vw + 1rem, 4rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
}

.section-title h2 span {
    color: #4facfe;
}

.section-title p {
    max-width: 720px;
    margin: var(--space-md) auto 0;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    padding: 10px 28px;
    border: 1px solid rgba(79, 172, 254, .45);
    border-radius: 50px;
    color: #7fc8ff;
    font-size: .85rem;
    letter-spacing: 2px;
    margin-bottom: 25px;
}

.title-line {
    width: 90px;
    height: 4px;
    border-radius: 30px;
    margin: 25px auto 0;
    background: #4facfe;
}


/*==================================================
    6. UTILITIES & BUTTONS
==================================================*/

.btn,
.btn-primary,
.btn-secondary,
.btn-outline,
.social-links a {
    transition: transform var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition), color var(--transition);
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 180px;
    min-height: 48px;
    padding: 16px 32px;
    border-radius: 14px;
    font-weight: 600;
}

.btn-primary {
    background: var(--sky);
    color: #070707;
    box-shadow: 0 15px 35px rgba(99, 199, 255, .28);
}

.btn-primary:hover {
    transform: translateY(-5px);
    background: #82d9ff;
    box-shadow: 0 12px 35px rgba(99, 199, 255, .35);
}

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

.btn-secondary:hover {
    border-color: var(--sky);
    background: #151515;
    transform: translateY(-5px);
}

.btn-outline {
    padding: 15px 34px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, .12);
    color: var(--white);
}

.btn-outline:hover {
    border-color: var(--sky);
    color: var(--sky);
}

.text-center {
    text-align: center;
}

.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: 30px; }
.mt-4 { margin-top: var(--space-xl); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: 30px; }
.mb-4 { margin-bottom: var(--space-xl); }


/*==================================================
    7. NAVBAR
==================================================*/

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    background: rgba(7, 7, 7, .78);
    border-bottom: 1px solid var(--border);
    transition: background-color var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
    background: rgba(7, 7, 7, .92);
    box-shadow: 0 15px 40px rgba(0, 0, 0, .35);
}

.nav-container {
    height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
}

.logo img {
    height: 48px;
    width: auto;
    display: block;
    transition: transform var(--transition);
}

.logo:hover img {
    transform: scale(1.05);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 42px;
}

.nav-links a {
    position: relative;
    font-size: 16px;
    font-weight: 500;
    color: #bdbdbd;
    transition: color var(--transition);
}

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

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 0;
    height: 2px;
    background: var(--sky);
    transition: width var(--transition);
}

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

.menu-btn {
    display: none;
    font-size: 28px;
    color: var(--white);
    cursor: pointer;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
}


/*==================================================
    8. HERO
==================================================*/

.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding: 110px 0 40px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 460px;
    gap: 80px;
    align-items: center;
    width: 100%;
}

.hero-content {
    animation: fadeUp .9s cubic-bezier(.16, 1, .3, 1);
}

.small-title {
    color: var(--sky);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.hero-content h1 {
    font-size: clamp(2.75rem, 5vw + 1rem, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -3px;
    margin-bottom: var(--space-lg);
}

.hero-text {
    max-width: 620px;
    margin-bottom: 42px;
    color: var(--text);
}

.service-list li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 21px;
    font-weight: 600;
}

.service-list i {
    color: var(--sky);
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.socials {
    display: flex;
    gap: 16px;
    margin-top: 14px;
}

.socials a {
    width: 48px;
    height: 48px;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    transition: transform var(--transition), background-color var(--transition), color var(--transition);
}

.socials a:hover {
    background: var(--sky);
    color: #000;
    transform: translateY(-6px);
}

.hero-image {
    display: flex;
    justify-content: center;
}

.image-box {
    width: 100%;
    max-width: 280px;
    height: 420px;
    overflow: hidden;
    border-radius: 28px;
    border: 1px solid rgba(99, 199, 255, .18);
    background: #111;
    box-shadow: 0 25px 60px rgba(0, 0, 0, .45), 0 0 80px rgba(99, 199, 255, .12);
    transition: transform .4s cubic-bezier(.16, 1, .3, 1), box-shadow .4s cubic-bezier(.16, 1, .3, 1);
    will-change: transform;
}

.image-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.image-box:hover {
    transform: translateY(-8px);
    box-shadow: 0 35px 80px rgba(0, 0, 0, .55), 0 0 120px rgba(99, 199, 255, .20);
}

.availability {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 24px;
}


/*==================================================
    9. ABOUT & TECH STACK
==================================================*/

.about {
    position: relative;
    padding: var(--section-space) 0;
    background: #070b16;
    overflow: visible;
}

.about::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, rgba(70, 145, 255, .15), transparent 45%), radial-gradient(circle at bottom right, rgba(0, 180, 255, .08), transparent 45%);
    pointer-events: none;
}

.about .container {
    width: min(1200px, 92%);
    margin: auto;
    position: relative;
    z-index: 2;
}

.about-wrapper {
    display: grid;
    grid-template-columns: 460px 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 70px;
}

.image-card {
    position: relative;
    overflow: hidden;
    border-radius: 28px;
    background: #10182d;
    border: 1px solid rgba(255, 255, 255, .08);
}

.image-card img {
    width: 100%;
    display: block;
    object-fit: cover;
    object-position: center 20%;
}

.about-content h3 {
    color: var(--white);
    font-size: clamp(2rem, 3.5vw + 1rem, 3rem);
    margin-bottom: 18px;
    line-height: 1.2;
}

.about-content h3 span {
    color: #4facfe;
}

.about-role {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: 35px;
}

.about-role span {
    color: #d6d6d6;
    font-size: 1rem;
}

.about-role .dot {
    width: 6px;
    height: 6px;
    background: #4facfe;
    border-radius: 50%;
}

.about-content p {
    color: #cfcfcf;
    font-size: 1.12rem;
    line-height: 2;
    margin-bottom: 28px;
}

.tools-box {
    position: relative;
    overflow: hidden;
    border-radius: 30px;
    padding: 28px 0;
    border: 1px solid rgba(255, 255, 255, .08);
    background: rgba(255, 255, 255, .03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.tools-box::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 120px;
    height: 100%;
    background: linear-gradient(to right, #070b16, transparent);
    z-index: 10;
    pointer-events: none;
}

.tools-box::after {
    content: "";
    position: absolute;
    right: 0;
    top: 0;
    width: 120px;
    height: 100%;
    background: linear-gradient(to left, #070b16, transparent);
    z-index: 10;
    pointer-events: none;
}

.tools-track {
    display: flex;
    align-items: center;
    gap: 55px;
    width: max-content;
    animation: marquee 30s linear infinite;
    will-change: transform;
}

.tools-box:hover .tools-track {
    animation-play-state: paused;
}

.tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 90px;
    transition: transform var(--transition);
}

.tool-item:hover {
    transform: translateY(-8px);
}

.tool-item i {
    font-size: 3rem;
    margin-bottom: 12px;
}

.tool-item img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    margin-bottom: 12px;
}

.tool-item span {
    color: var(--white);
    font-size: .9rem;
    text-align: center;
    line-height: 1.4;
}


/*==================================================
    10. PROJECTS & FEATURED PROJECT
==================================================*/

.projects {
    padding: 100px 0 40px;
}

.project-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 10px 24px;
    border-radius: 999px;
    background: rgba(99, 199, 255, .08);
    border: 1px solid rgba(99, 199, 255, .15);
    color: var(--sky);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.project-badge i {
    font-size: 8px;
}

.projects .section-title h2 {
    font-size: clamp(2.25rem, 4.25vw + 1rem, 4.25rem);
    margin: 25px 0 18px;
}

.projects .section-title h2 span {
    color: var(--sky);
}

.projects .section-title p {
    max-width: 720px;
    margin: auto;
    font-size: 21px;
}

.featured-project {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 55px;
    margin-top: 70px;
    align-items: center;
}

.browser-window {
    background: var(--bg-secondary);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .08);
    box-shadow: 0 25px 70px rgba(0, 0, 0, .45), 0 0 70px rgba(99, 199, 255, .06);
}

.browser-top {
    height: 62px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-lg);
    background: #171717;
    border-bottom: 1px solid rgba(255, 255, 255, .05);
}

.browser-logo {
    font-weight: 700;
}

.browser-nav {
    display: flex;
    gap: var(--space-lg);
    color: #bcbcbc;
    font-size: 14px;
}

.browser-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.browser-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: transform var(--transition-slow);
}

.browser-window:hover img {
    transform: scale(1.03);
}

.project-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.project-heading {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.check-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sky);
    color: #070707;
    font-size: 22px;
    flex-shrink: 0;
}

.project-heading h3 {
    font-size: clamp(2.375rem, 3.25vw + 1rem, 3.25rem);
    margin-bottom: 8px;
}

.project-heading h4 {
    color: var(--sky);
    font-size: 22px;
    font-weight: 600;
}

.project-description {
    font-size: 18px;
    line-height: 1.9;
}

.project-list {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.project-list li {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.project-list i {
    color: var(--sky);
    margin-top: 5px;
}

.project-list strong {
    color: var(--white);
    margin-right: 8px;
}

.project-details {
    margin-top: 65px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 35px;
}

.detail-card {
    background: #111;
    border-radius: 24px;
    padding: 35px;
    border: 1px solid rgba(255, 255, 255, .08);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.detail-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 199, 255, .35);
    box-shadow: 0 20px 50px rgba(99, 199, 255, .12);
}

.detail-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: 24px;
}

.detail-title i {
    color: var(--sky);
    font-size: 24px;
}

.detail-card ul {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.detail-card li {
    position: relative;
    padding-left: 22px;
}

.detail-card li::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--sky);
    position: absolute;
    left: 0;
    top: 11px;
}

.live-website {
    margin-top: 60px;
    margin-bottom: 0;
}

.live-card {
    position: relative;
    display: grid;
    grid-template-columns: 90px 1fr auto;
    align-items: center;
    gap: 50px;
    padding: 42px 55px;
    border-radius: 28px;
    background: rgba(16, 16, 18, .75);
    border: 1px solid rgba(255, 255, 255, .08);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    overflow: hidden;
}

.live-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at left, #38bdf81c, transparent 45%);
    pointer-events: none;
}

.live-logo {
    width: 82px;
    height: 82px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(56, 189, 248, .08);
    border: 1px solid rgba(56, 189, 248, .2);
    flex-shrink: 0;
}

.live-logo img {
    width: 65px;
    height: 65px;
    object-fit: contain;
}

.live-content h2 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 12px;
}

.live-content p {
    color: #b5b5b5;
    font-size: 1.05rem;
    line-height: 1.7;
    max-width: 620px;
}

.live-line {
    position: relative;
    margin-top: 35px;
    height: 1px;
    background: rgba(96, 165, 250, .25);
    transform: scaleX(.35);
    transform-origin: left;
    transition: transform 1s cubic-bezier(.22, 1, .36, 1);
}

.line-dot {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #4fc3f7;
    box-shadow: 0 0 18px #4fc3f7;
    transition: box-shadow var(--transition);
}

.live-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #67c7ff;
    font-size: 1.15rem;
    font-weight: 600;
    transition: color var(--transition);
}

.live-link svg {
    transition: transform var(--transition);
}

.live-card:hover .live-link {
    color: #9edcff;
}

.live-card:hover .live-link svg {
    transform: translate(5px, -5px);
}

.live-card:hover .line-dot {
    box-shadow: 0 0 10px #4fc3f7, 0 0 30px #4fc3f7;
}

.tools-used {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, .08);
}

.tools-used h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
}

.tool-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
}

.tool-tags span {
    padding: .45rem .9rem;
    border: 1px solid rgba(79, 195, 247, .25);
    background: rgba(79, 195, 247, .08);
    color: #7dd3fc;
    border-radius: 999px;
    font-size: .85rem;
    font-weight: 500;
    transition: transform var(--transition), background-color var(--transition), border-color var(--transition);
}

.tool-tags span:hover {
    transform: translateY(-2px);
    background: rgba(79, 195, 247, .16);
    border-color: #38bdf8;
}


/*==================================================
    11. CERTIFICATES
==================================================*/

.certificates {
    position: relative;
    padding: var(--section-space) 0;
}

/* FIX: Flexible auto-fit grid prevents overflow clipping on mobile */
.certificate-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
    margin: 70px auto 0;
    align-items: stretch;
}

.certificate-card {
    position: relative;
    width: 100%;
    max-width: none;
    min-width: 0;
    min-height: 620px;
    margin: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
    background: rgba(18, 18, 20, .72);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 24px;
    overflow: hidden;
    transition: transform .45s cubic-bezier(.16, 1, .3, 1), border-color .45s ease, box-shadow .45s ease;
    will-change: transform;
}

.certificate-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(89, 182, 255, .18), transparent 45%, transparent);
    opacity: 0;
    transition: opacity .45s ease;
    pointer-events: none;
}

.certificate-card:hover {
    transform: translateY(-12px);
    border-color: rgba(89, 182, 255, .45);
    box-shadow: 0 25px 60px rgba(0, 0, 0, .45), 0 0 45px rgba(89, 182, 255, .18);
}

.certificate-card:hover::before {
    opacity: 1;
}

.certificate-image {
    position: relative;
    height: 140px;
    overflow: hidden;
}

.certificate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform .7s cubic-bezier(.16, 1, .3, 1);
}

.certificate-card:hover .certificate-image img {
    transform: scale(1.07);
}

.certificate-image::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, .55), transparent);
    pointer-events: none;
}

.certificate-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 19px;
}

.certificate-provider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.certificate-provider img {
    width: 34px;
    height: 34px;
    object-fit: contain;
}

.certificate-provider span {
    color: #b9b9b9;
    font-size: .95rem;
}

.certificate-content h3 {
    font-size: 1.1rem;
    line-height: 1.3;
    margin-bottom: 12px;
}

.certificate-content p {
    font-size: .92rem;
    line-height: 1.6;
    margin-bottom: 18px;
    min-height: 70px;
}

.certificate-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.certificate-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #9d9d9d;
    font-size: .9rem;
}

.certificate-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
    min-height: 60px;
}

.certificate-tags span {
    padding: 6px 12px;
    border-radius: 50px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(89, 182, 255, .15);
    color: var(--white);
    font-size: .80rem;
    transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

.certificate-tags span:hover {
    background: #57b7ff;
    color: #08111d;
    border-color: #57b7ff;
}

.verify-btn {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 44px;
    font-size: .9rem;
    font-weight: 600;
}

.verify-btn:hover {
    background: #57b7ff;
    color: #071018;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(89, 182, 255, .35);
}

.verify-btn i {
    transition: transform var(--transition);
}

.verify-btn:hover i {
    transform: translate(4px, -4px);
}

.certificate-modal {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, .92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
    z-index: 99999;
}

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

.certificate-modal img {
    max-width: 90vw;
    max-height: 85vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 18px;
    box-shadow: 0 20px 80px rgba(0, 0, 0, .55), 0 0 45px rgba(87, 183, 255, .25);
    transform: scale(.92);
    transition: transform var(--transition);
}

.certificate-modal.active img {
    transform: scale(1);
}

.certificate-close {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 54px;
    height: 54px;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, .08);
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
    font-size: 22px;
}

.certificate-close:hover {
    background: #57b7ff;
    color: #08111d;
    transform: rotate(90deg);
}


/*==================================================
    12. CONTACT & FOOTER
==================================================*/

.contact {
    padding: 110px 0;
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: "";
    position: absolute;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 199, 255, .10), transparent 70%);
    top: -220px;
    right: -220px;
    pointer-events: none;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
    align-items: center;
}

.contact-left h2 {
    font-size: clamp(2.5rem, 4vw + 1rem, 4rem);
    line-height: 1.05;
    margin-bottom: 20px;
    font-weight: 800;
}

.contact-left h2 span {
    color: var(--sky);
}

.contact-left p {
    max-width: 480px;
    color: #a7a7a7;
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 40px;
}

.contact-buttons {
    display: flex;
    gap: 18px;
    margin-bottom: 35px;
}

.status {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #cfcfcf;
    font-size: .95rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #24ff76;
    box-shadow: 0 0 15px #24ff76;
}

.contact-right {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 26px;
    border-radius: 20px;
    background: rgba(18, 18, 22, .75);
    border: 1px solid rgba(255, 255, 255, .08);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.contact-card:hover {
    transform: translateY(-8px);
    border-color: var(--sky);
    box-shadow: 0 20px 50px rgba(99, 199, 255, .12);
}

.contact-card > div:first-child {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(99, 199, 255, .08);
    color: var(--sky);
    font-size: 22px;
    flex-shrink: 0;
}

.contact-card h4 {
    font-size: 1.15rem;
    margin-bottom: 6px;
}

.contact-card p {
    color: #9b9b9b;
    font-size: .9rem;
}

.contact-card > .fa-arrow-right {
    margin-left: auto;
    color: var(--sky);
    transition: transform var(--transition);
}

.contact-card:hover > .fa-arrow-right {
    transform: translateX(6px);
}

.contact-footer {
    margin-top: 90px;
    text-align: center;
}

.contact-footer h3 {
    font-size: 2rem;
    margin-bottom: 14px;
    color: var(--white);
}

.contact-footer p {
    max-width: 520px;
    margin: auto;
    color: #9b9b9b;
    line-height: 1.8;
}

.availability {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-top: 28px;
    padding: 10px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .08);
}

.online-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #27ff77;
    box-shadow: 0 0 14px #27ff77;
}


/*==================================================
    13. KEYFRAME ANIMATIONS & REDUCED MOTION
==================================================*/

.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity .8s cubic-bezier(.16, 1, .3, 1), transform .8s cubic-bezier(.16, 1, .3, 1);
    will-change: transform, opacity;
}

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

.fade-up {
    animation: fadeUp .8s cubic-bezier(.16, 1, .3, 1) forwards;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.float {
    animation: float 6s ease-in-out infinite;
    will-change: transform;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }
}

@keyframes marquee {
    from {
        transform: translate3d(0, 0, 0);
    }
    to {
        transform: translate3d(-50%, 0, 0);
    }
}

/* Accessibility: Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    ::before,
    ::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }

    .tools-track {
        animation: none;
    }

    .float {
        animation: none;
    }
}


/*==================================================
    14. RESPONSIVE BREAKPOINTS (FIXED BUG TARGETS)
==================================================*/

@media (max-width: 992px) {
    .certificate-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-grid,
    .about-wrapper,
    .featured-project,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .project-details,
    .contact-right {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 82px;
        left: 0;
        width: 100%;
        background: rgba(7, 7, 7, .96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 30px 0;
        gap: 24px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-150%);
        transition: transform var(--transition);
        z-index: 998;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .contact-right {
        grid-template-columns: 1fr;
    }
}

/* MOBILE FIXES (320px - 576px) */
@media (max-width: 576px) {
    .container {
        padding: 0 var(--space-md);
    }

    /* FIX 1: Prevent background glow overlay from blocking hit-tests on boundary cards */
    body::before {
        width: 300px;
        height: 300px;
        top: -100px;
        right: -100px;
    }

    .contact::before {
        width: 300px;
        height: 300px;
        top: -100px;
        right: -100px;
    }

    .certificate-grid {
        grid-template-columns: 1fr;
    }

    /* FIX 2: Fit certificate cards dynamically to viewport */
    .certificate-card {
        max-width: 100%;
        min-height: auto;
    }

    /* FIX 3: Keep modal imagery within mobile screen toolbars */
    .certificate-modal img {
        max-width: 92vw;
        max-height: 80vh;
    }

    .certificate-close {
        top: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }

    .live-card {
        grid-template-columns: 1fr;
        padding: 24px;
        gap: 20px;
        text-align: center;
    }

    .live-logo {
        margin: 0 auto;
    }

    .live-link {
        justify-content: center;
    }

    .project-details {
        grid-template-columns: 1fr;
    }
}