:root[data-theme="light"] {
    --primary: #004ac6;
    --primary-container: #2563eb;
    --on-primary: #ffffff;
    --on-primary-container: #eeefff;
    --secondary: #006c49;
    --background: #f8f9ff;
    --surface: #f8f9ff;
    --surface-lowest: #ffffff;
    --surface-low: #eff4ff;
    --surface-container: #e5eeff;
    --surface-high: #dce9ff;
    --surface-highest: #d3e4fe;
    --surface-variant: #d3e4fe;
    --on-surface: #0b1c30;
    --on-surface-variant: #434655;
    --outline: #737686;
    --outline-variant: #c3c6d7;
    --inverse-surface: #213145;
    --inverse-on-surface: #eaf1ff;
    --blue-white-text: #004ac6;
}

:root[data-theme="dark"] {
    --primary: #2563eb;           /* Primary Blue (Actions & Active states) */
    --primary-container: #3b82f6; /* Primary Fixed Dim (Icons & Markers) */
    --on-primary: #ffffff;         /* High contrast text on primary elements */
    --on-primary-container: #f8fafc;
    --secondary: #f8fafc;
    --background: #0f172a;        /* Main Background (Deep navy/slate) */
    --surface: #1e293b;           /* Surface Container (Cards & Sections) */
    --surface-lowest: #1e293b;    /* Scaled deeper for lowest elevation */
    --surface-low: #1e293b;       /* Micro-elevation step */
    --surface-container: #1e293b; /* Base card/section background */
    --surface-high: #243249;      /* Elevated surface step */
    --surface-highest: #2d3d56;   /* Highest container elevation */
    --surface-variant: #334155;   /* Surface Bright (Subtle elevations) */
    --on-surface: #f8fafc;         /* On-Surface (Headings / Crisp off-white) */
    --on-surface-variant: #94a3b8; /* On-Surface Variant (Body / Muted gray) */
    --outline: #737686;           /* Outline/Borders (Timeline line & boundaries) */
    --outline-variant: #334155;   /* Softer border variant */
    --inverse-surface: #ffffff;   /* Inverse Surface (Sparingly used max contrast) */
    --inverse-on-surface: #0f172a;
    --blue-white-text: #ffffff;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Geist", sans-serif;
    background-color: var(--background);
    color: var(--on-surface);
    overflow-x: hidden;
}

.material-symbols-outlined {
    font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
    line-height: 1;
    vertical-align: middle;
}

.text-primary-custom { color: var(--primary) !important; }
.text-muted-custom { color: var(--on-surface-variant) !important; }
.bg-surface { background-color: var(--surface) !important; }
.bg-surface-lowest { background-color: var(--surface-lowest) !important; }
.bg-surface-low { background-color: var(--surface-low) !important; }
.bg-surface-container { background-color: var(--surface-container) !important; }
.bg-inverse-surface { background-color: var(--inverse-surface) !important; }
.text-inverse { color: var(--inverse-on-surface) !important; }
.border-outline { border-color: var(--outline-variant) !important; }

.soft-shadow {
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
}

.consultant-card {
    border-top: 3px solid var(--primary);
}

.section-reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.section-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-weight: 700;
}

.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    line-height: 1.2;
    font-weight: 600;
}

.eyebrow {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--primary);
}

.profile-watermark {
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: clamp(8rem, 15vw, 15rem);
    color: rgba(211, 228, 254, 0.45);
    pointer-events: none;
    z-index: 0;
}

.timeline {
    position: relative;
    padding-left: 1rem;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 1.15rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--outline-variant);
}

.timeline-item {
    position: relative;
    padding-left: 3.5rem;
    margin-bottom: 2rem;
}

.timeline-icon {
    position: absolute;
    left: -20px;
    top: 0;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    border: 6px solid var(--background);
}

.timeline-icon.primary {
    background: var(--primary);
    color: #fff;
}

.timeline-icon.soft {
    background: rgba(0, 74, 198, 0.15);
    color: var(--primary);
}

.timeline-icon.neutral {
    background: var(--surface-container);
    color: var(--on-surface-variant);
}

.tag,
.pill {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    border: 1px solid var(--outline-variant);
    background: var(--surface-container);
    color: var(--inverse-surface);
    font-weight: 500;
    padding: 0.5rem 0.95rem;
    font-size: 0.95rem;
}

.badge-cert {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 0.3rem;
    border: 1px solid rgba(0, 74, 198, 0.2);
    background: rgba(0, 74, 198, 0.1);
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 700;
}

.cert-card,
.content-card {
    background: var(--surface-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: 1rem;
}

.cert-card:hover{
    border: 1px solid var(--primary);
}

.cta-section {
    position: relative;
    overflow: hidden;
    border-radius: 1.75rem;
    background: #213145;
    color: #EAF1FF;
}

.cta-decoration {
    position: absolute;
    right: -40px;
    top: -30px;
    font-size: 24rem;
    opacity: 0.07;
    pointer-events: none;
    display: none;
}

.footer-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-link-custom {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    border-radius: 0.9rem;
    color: var(--on-surface-variant);
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-link-custom:hover,
.nav-link-custom:focus {
    background: var(--surface-container);
    color: var(--primary);
}

.nav-link-custom.active {
    background: rgba(0, 74, 198, 0.1);
    color: var(--primary);
    font-weight: 600;
}

.theme-link-custom {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    border-radius: 0.9rem;
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 500;
}


.mobile-navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--outline-variant);
    z-index: 1040;
    min-height: 64px;
}

.mobile-navbar .navbar-toggler {
    border: 0;
    box-shadow: none !important;
    padding: 0.4rem;
    color: var(--blue-white-text);
}

.mobile-navbar .navbar-toggler-icon {
    display: none;
}

.mobile-brand {
    color: var(--blue-white-text);
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
}

.mobile-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    border: 1px solid var(--outline-variant);
    flex-shrink: 0;
}

.mobile-drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(11, 28, 48, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1045;
}

.mobile-drawer-backdrop.show {
    opacity: 1;
    visibility: visible;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: min(320px, 88vw);
    background: var(--surface-lowest);
    border-radius: 0 1rem 1rem 0;
    box-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.12);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    padding: 1rem 0;
}

.mobile-drawer.show {
    transform: translateX(0);
}

.mobile-drawer-header {
    padding: 1.5rem 1.5rem 1.25rem;
    border-bottom: 1px solid var(--outline-variant);
    margin-bottom: 1rem;
}

.mobile-drawer-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.mobile-drawer-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--surface-container);
    flex-shrink: 0;
}

.mobile-drawer-quote {
    color: var(--on-surface-variant);
    font-size: 0.8rem;
    font-style: italic;
    margin: 0;
}

.mobile-drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 0 0.75rem;
    flex: 1 1 auto;
}

.mobile-drawer .nav-link-custom.active {
    background: var(--primary-container);
    color: var(--on-primary-container);
    transform: translateX(4px);
    border-radius: 999px;
}

.mobile-drawer .nav-link-custom.active .material-symbols-outlined {
    font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24;
}

.mobile-drawer-footer {
    padding: 1rem;
}

.desktop-sidebar {
    width: 260px;
    background: var(--surface-lowest);
    border-right: 1px solid var(--outline-variant);
    height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
    z-index: 1020;
}

.main-content {
    min-width: 0;
}

@media (min-width: 992px) {
    body {
    padding-top: 0;
    }

    .cta-decoration {
    display: block;
    }
}

@media (max-width: 991.98px) {
    body {
    padding-top: 72px;
    }

    .profile-watermark {
    font-size: 9rem;
    right: -10px;
    }

    .timeline::before {
    left: 1.05rem;
    }

    .timeline-item {
    padding-left: 3.25rem;
    }

    .timeline-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-width: 4px;
    }
}

@media (max-width: 767.98px) {
    .mobile-brand {
    font-size: 1.1rem;
    }

    .hero-title {
    font-size: 2.2rem;
    }

    .cta-section {
    border-radius: 1.25rem;
    }
}
/* The switch - the box around the slider */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

/* Hide default HTML checkbox */
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

/* The slider */
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    -webkit-transition: .4s;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    -webkit-transition: .4s;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--primary);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--primary);
}

input:checked + .slider:before {
    -webkit-transform: translateX(26px);
    -ms-transform: translateX(26px);
    transform: translateX(26px);
}

/* Rounded sliders */
.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Blinking Highlight Effect */
.blink-highlight .cta-section {
    animation: flashGrey 0.8s ease-in-out 2; /* Runs exactly twice */
}

@keyframes flashGrey {
    0%, 100% {
        background: #213145; /* Restores your base blue slate card color */
    }
    50% {
        /* Flashes the container to a beautiful mid-tone slate grey */
        background: #64748b; 
    }
}
@media (min-width: 992px) and (max-width: 1369px) {
#about {
    margin-top: 50px !important;
}
}
/* --- Mobile Logic (Below 1370px) --- */
@media (max-width: 1369px) {
.mobile-navbar, 
.mobile-drawer {
    display: block !important; /* Force show the mobile parts */
}

.desktop-menu {
    display: none !important; /* Hide the desktop sidebar */
}

/* Ensure content takes 90% as you requested previously */
.main-block {
    width: 100%;
    margin: 0 auto;
}
}

/* --- Desktop Logic (1370px and up) --- */
@media (min-width: 1370px) {
.mobile-navbar, 
.mobile-drawer, 
.mobile-drawer-backdrop {
    display: none !important; /* Hide mobile parts on large screens */
}

.desktop-menu {
    display: block !important; /* Show desktop sidebar */
}
}
.badge {
  font-size: 0.8rem; 
}

/* Screen sizes 500px and up */
@media (min-width: 500px) {
  .badge {
    font-size: 1.125rem; 
  }
}