:root {
    --bg: #040916;
    --bg-soft: #0b1226;
    --bg-softer: #111a33;
    --surface-raised: rgba(15, 23, 42, 0.55);
    --surface-muted: rgba(15, 23, 42, 0.38);
    --surface-interactive: rgba(15, 23, 42, 0.68);
    --field-bg: rgba(15, 23, 42, 0.6);
    --panel-grad-start: #0f1a38;
    --panel-grad-end: #090f22;
    --border-strong: rgba(96, 165, 250, 0.28);
    --header-gradient-start: rgba(5, 8, 22, 0.9);
    --header-gradient-mid: rgba(5, 8, 22, 0.75);
    --table-head-bg: rgba(15, 23, 42, 0.55);
    --table-row-alt: rgba(255, 255, 255, 0.02);
    --danger-soft: rgba(220, 38, 38, 0.14);
    --accent: #48a9ff;
    --accent-soft: rgba(72, 169, 255, 0.15);
    --text: #f4f4f5;
    --muted: #a0a3af;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
    --contrast-text: #f4f4f5;
    --hero-gradient-start: #1e293b;
    --hero-gradient-end: #0b1020;
}

[data-theme="light"] {
    --bg: #edf2f8;
    --bg-soft: #ffffff;
    --bg-softer: #c9d5e6;
    --surface-raised: rgba(255, 255, 255, 0.9);
    --surface-muted: rgba(241, 245, 249, 0.92);
    --surface-interactive: rgba(226, 232, 240, 0.92);
    --field-bg: #ffffff;
    --panel-grad-start: #ffffff;
    --panel-grad-end: #f8fafc;
    --border-strong: rgba(37, 99, 235, 0.28);
    --header-gradient-start: rgba(255, 255, 255, 0.92);
    --header-gradient-mid: rgba(245, 248, 252, 0.86);
    --table-head-bg: rgba(241, 245, 249, 0.95);
    --table-row-alt: rgba(15, 23, 42, 0.035);
    --danger-soft: rgba(220, 38, 38, 0.1);
    --accent: #1d4ed8;
    --accent-soft: rgba(29, 78, 216, 0.1);
    --text: #0f172a;
    --muted: #334155;
    --border-subtle: rgba(15, 23, 42, 0.16);
    --shadow-soft: 0 14px 34px rgba(15, 23, 42, 0.16);
    --contrast-text: #0f172a;
    --hero-gradient-start: #c9d4e6;
    --hero-gradient-end: #99a3c0;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100vh;
}

body {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, var(--bg-softer) 0, var(--bg) 58%);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: -25%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.7;
    background:
        radial-gradient(circle at 8% 16%, rgba(59, 130, 246, 0.28), transparent 42%),
        radial-gradient(circle at 84% 10%, rgba(14, 165, 233, 0.2), transparent 40%),
        radial-gradient(circle at 48% 86%, rgba(56, 189, 248, 0.16), transparent 45%);
}

[data-theme="light"] body::before {
    opacity: 0.18;
}

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

/* Layout */

.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(16px);
    background: linear-gradient(to bottom,
            var(--header-gradient-start),
            var(--header-gradient-mid),
            transparent);
    border-bottom: 1px solid var(--border-subtle);
}

.nav {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-mark {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background: radial-gradient(circle at 30% 30%, #fff, #48a9ff);
    box-shadow: 0 0 0 2px rgba(72, 169, 255, 0.35);
}

.nav-title {
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    font-size: 0.9rem;
    color: var(--contrast-text);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    font-size: 0.9rem;
}

.nav-links a {
    position: relative;
    color: var(--contrast-text);
    font-weight: 550;
    cursor: pointer;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.25rem;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.18s ease-out;
}

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

.theme-toggle, .log-in, .log-out {
    border-radius: 999px;
    border: 1px solid var(--border-subtle);
    background: var(--surface-interactive);
    padding: 0.25rem 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    color: var(--contrast-text);
    cursor: pointer;
}

.theme-dot {
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: var(--accent);
}

main {
    flex: 1;
}

.section {
    max-width: 1080px;
    margin: 0 auto;
    padding: 3rem 1.5rem 4rem;
}

.section--hero {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.3fr);
    gap: 3rem;
    align-items: center;
    padding-top: 4rem;
}

@media (max-width: 800px) {
    .section--hero {
        grid-template-columns: minmax(0, 1fr);
        padding-top: 2.5rem;
    }
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.7rem;
    border-radius: 999px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.13em;
    color: var(--contrast-text);
    border: 1px solid var(--border-subtle);
    background: var(--surface-interactive);
}

.eyebrow-dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: #22c55e;
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.28);
}

h1.hero-title {
    margin: 1.5rem 0 0.75rem;
    font-size: clamp(2.4rem, 5vw, 3.3rem);
    line-height: 1.05;
}

.hero-highlight {
    background: linear-gradient(120deg, #48a9ff, #a855f7, #f97316);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-subtitle {
    max-width: 36rem;
    font-size: 0.98rem;
    line-height: 1.6;
    color: var(--muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.3rem;
    border-radius: 999px;
    font-size: 0.88rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform 0.12s ease-out, box-shadow 0.12s ease-out,
        background 0.12s ease-out, border-color 0.12s ease-out;
}

.btn-primary {
    background: linear-gradient(135deg, #48a9ff, #6366f1);
    color: #f9fafb;
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 22px 50px rgba(15, 23, 42, 0.9);
}

.btn-ghost {
    border-color: var(--border-subtle);
    background: var(--surface-interactive);
    color: var(--contrast-text);
}

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--text);
}

.hero-meta {
    margin-top: 1.7rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.78rem;
    color: var(--muted);
}

.hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.hero-meta-dot {
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: var(--accent);
}

/* Right hero card */

.hero-card {
    background: radial-gradient(circle at top left, var(--hero-gradient-start), var(--hero-gradient-end));
    border-radius: 24px;
    border: 1px solid var(--border-subtle);
    padding: 1.6rem 1.5rem;
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
}

.hero-orbit {
    position: absolute;
    inset: -30%;
    opacity: 0.22;
    background:
        radial-gradient(circle at 10% 0, rgba(72, 169, 255, 0.85), transparent 55%),
        radial-gradient(circle at 80% 20%, rgba(168, 85, 247, 0.7), transparent 60%),
        radial-gradient(circle at 30% 90%, rgba(56, 189, 248, 0.7), transparent 60%);
}

.hero-card-inner {
    position: relative;
}

.hero-card-title {
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--contrast-text);
}

.hero-card-main {
    margin-top: 0.6rem;
    font-size: 1.05rem;
}

.hero-pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1.1rem 0;
}

.pill {
    padding: 0.35rem 0.8rem;
    border-radius: 999px;
    font-size: 0.75rem;
    background: var(--accent-soft);
    border: 1px solid rgba(72, 169, 255, 0.35);
    color: #e5f2ff;
}

[data-theme="light"] .pill {
    color: #1d2939;
}

.hero-card-footer {
    margin-top: 1.3rem;
    font-size: 0.78rem;
    color: var(--muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}

.hero-badge {
    padding: 0.22rem 0.7rem;
    border-radius: 999px;
    border: 1px dashed rgba(148, 163, 184, 0.7);
    font-size: 0.7rem;
}

/* Tech strip */

.section--tech {
    padding-top: 0;
}

.tech-strip {
    margin-top: 1.3rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    font-size: 0.78rem;
}

.tech-chip {
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    background: var(--bg-softer);
    border: 1px solid var(--border-subtle);
    color: var(--muted);
}

/* Projects preview */

.section-heading {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.section-subtext {
    font-size: 0.9rem;
    color: var(--muted);
    max-width: 32rem;
}

.projects-grid {
    margin-top: 1.5rem;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .projects-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .projects-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

.project-card {
    position: relative;
    border-radius: 18px;
    background: var(--bg-soft);
    border: 1px solid var(--border-subtle);
    padding: 1rem;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.15s ease-out, box-shadow 0.15s ease-out,
        border-color 0.15s ease-out;
}

.project-card:hover {
    transform: translateY(-3px);
    border-color: rgba(72, 169, 255, 0.7);
    box-shadow: var(--shadow-soft);
}

.project-tag {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.13em;
    color: var(--muted);
}

.project-title {
    margin: 0.5rem 0 0.3rem;
    font-size: 0.98rem;
}

.project-desc {
    font-size: 0.82rem;
    color: var(--muted);
    min-height: 3.5em;
}

.project-meta {
    margin-top: 0.7rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    font-size: 0.74rem;
    color: var(--muted);
}

.project-pill {
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background: var(--surface-interactive);
    border: 1px solid rgba(148, 163, 184, 0.5);
    color: var(--contrast-text);
}

/* About + Contact */

.about-body {
    margin-top: 1rem;
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--muted);
    max-width: 42rem;
}

.contact-box {
    margin-top: 1.5rem;
    border-radius: 18px;
    padding: 1.4rem 1.6rem;
    background: var(--bg-soft);
    border: 1px solid var(--border-subtle);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    justify-content: space-between;
}

.contact-text {
    font-size: 0.9rem;
    color: var(--muted);
}

footer {
    border-top: 1px solid var(--border-subtle);
    padding: 1.2rem 1.5rem 1.6rem;
    font-size: 0.76rem;
    color: var(--muted);
    text-align: center;
}

.SSL-seal {
    margin-top: 0.8rem;
    display:block;
}

.hidden {
    display: none;
}

.floatRight{
    margin-left:auto;
}

/* Landing-page layout tuning (scoped to index.php only) */
.landing-page .nav {
    max-width: 1120px;
}

.landing-page main {
    padding-bottom: 1.25rem;
}

.landing-page .section {
    max-width: 1120px;
    padding: 2rem 1.35rem 2.1rem;
}

.landing-page .section--hero {
    gap: 2.1rem;
    padding-top: 2.2rem;
    align-items: center;
}

.landing-page .hero-title {
    margin-top: 1.1rem;
}

.landing-page .hero-subtitle {
    max-width: 41rem;
}

.landing-page .hero-actions {
    margin-top: 1.15rem;
}

.landing-page .hero-meta {
    margin-top: 1.15rem;
    gap: 1rem;
}

.landing-page .hero-card {
    padding: 1.35rem;
    border-radius: 20px;
    align-self: center;
}

.landing-page .section--tech {
    padding-top: 0.1rem;
    padding-bottom: 1.55rem;
}

.landing-page .tech-strip {
    margin-top: 0.85rem;
}

.landing-page .section-heading {
    font-size: clamp(1.22rem, 1.55vw, 1.42rem);
    margin-bottom: 0.45rem;
    line-height: 1.2;
}

.landing-page .section-subtext {
    font-size: 0.92rem;
    line-height: 1.55;
    max-width: 44rem;
}

.landing-page .projects-grid {
    margin-top: 0.95rem;
    gap: 1rem;
    align-items: stretch;
}

.landing-page .project-card {
    border-radius: 16px;
    padding: 0.9rem;
    display: flex;
}

.landing-page .project-card > a {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.landing-page .project-desc {
    min-height: 3.1em;
    line-height: 1.38;
}

.landing-page .project-meta {
    margin-top: auto;
    padding-top: 0.75rem;
}

.landing-page .about-body {
    margin-top: 0.6rem;
    max-width: 52rem;
    line-height: 1.62;
}

.landing-page .contact-box {
    margin-top: 0.75rem;
    padding: 0.9rem 1rem;
    border-radius: 16px;
    gap: 0.8rem;
}

.landing-page footer {
    margin-top: 0.8rem;
}

@media (max-width: 900px) {
    .landing-page .nav {
        padding: 0.62rem 0.9rem;
        gap: 0.8rem;
    }

    .landing-page .nav-left,
    .landing-page .nav-links {
        min-width: 0;
    }

    .landing-page .nav-links {
        flex: 1 1 auto;
        gap: 0.55rem;
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .landing-page .nav-links a[data-scroll] {
        font-size: 0.84rem;
    }

    .landing-page .section {
        padding: 1.62rem 0.88rem 1.72rem;
    }

    .landing-page .section--hero {
        gap: 1.15rem;
        padding-top: 1.35rem;
        align-items: start;
    }

    .landing-page .hero-card {
        padding: 1.05rem;
    }
}

@media (max-width: 640px) {
    .landing-page .nav {
        flex-wrap: wrap;
        justify-content: center;
        padding: 0.55rem 0.6rem;
    }

    .landing-page .nav-left {
        width: 100%;
        justify-content: center;
    }

    .landing-page .nav-links {
        width: 100%;
        justify-content: center;
        row-gap: 0.45rem;
    }

    .landing-page .nav-title {
        font-size: 0.82rem;
    }

    .landing-page .nav-links a[data-scroll] {
        font-size: 0.8rem;
    }

    .landing-page .theme-toggle,
    .landing-page .log-in,
    .landing-page .log-out {
        min-height: 38px;
        font-size: 0.76rem;
    }

    .landing-page .section {
        padding: 1.25rem 0.58rem 1.3rem;
    }

    .landing-page .section--hero {
        padding-top: 1rem;
        gap: 0.92rem;
    }

    .landing-page .eyebrow {
        font-size: 0.67rem;
    }

    .landing-page h1.hero-title {
        margin-top: 0.75rem;
        margin-bottom: 0.62rem;
        font-size: clamp(1.72rem, 8vw, 2.1rem);
        line-height: 1.08;
    }

    .landing-page .hero-subtitle {
        font-size: 0.89rem;
        line-height: 1.46;
    }

    .landing-page .hero-meta {
        font-size: 0.72rem;
        gap: 0.62rem;
    }

    .landing-page .hero-card-main {
        font-size: 0.92rem;
    }

    .landing-page .hero-card-footer {
        margin-top: 0.8rem;
        font-size: 0.72rem;
        flex-direction: column;
        align-items: flex-start;
    }

    .landing-page .projects-grid {
        margin-top: 0.75rem;
        gap: 0.7rem;
    }

    .landing-page .project-card {
        padding: 0.75rem;
    }

    .landing-page .section-heading {
        font-size: 1.08rem;
        margin-bottom: 0.28rem;
    }

    .landing-page .section-subtext,
    .landing-page .contact-text {
        font-size: 0.85rem;
    }

    .landing-page .tech-strip {
        gap: 0.45rem;
    }

    .landing-page .tech-chip,
    .landing-page .project-pill {
        font-size: 0.7rem;
    }

    .landing-page .project-title {
        margin-top: 0.4rem;
        font-size: 0.92rem;
    }

    .landing-page .project-desc {
        font-size: 0.78rem;
        min-height: 0;
    }

    .landing-page .contact-box .btn {
        width: 100%;
        min-height: 42px;
    }
}