:root {
    --buxjr-bg-footer:   #010409;
    --buxjr-bg-dark:     #0d1117;
    --buxjr-bg-section:  #161b22;
    --buxjr-bg-card:     #1c2128;
    --buxjr-bg-input:    #21262d;
    --buxjr-accent:      #365c77;
    --buxjr-accent-hover:#4a7a9b;
    --buxjr-text:        #e6edf3;
    --buxjr-text-muted:  #8b949e;
    --buxjr-border:      #30363d;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: auto;
}

body {
    font-family: 'Ubuntu', sans-serif;
    background-color: var(--buxjr-bg-dark);
    color: var(--buxjr-text);
    margin: 0;
    overflow-x: hidden;
}

/* Slide system — each slide sticks at top, next one covers it */
.slide {
    height: 100vh;
    position: sticky;
    top: 0;
    overflow: hidden;
    background-color: var(--buxjr-bg-dark);
}

.slide-inner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    will-change: opacity, filter;
}

/* Hero slide */

#orbitContainer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

#orbitCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#orbitCenter {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    text-align: center;
    z-index: 2;
}

#orbitLogo {
    height: 60px;
    filter: drop-shadow(0 0 4px rgba(200, 230, 255, 0.15))
            drop-shadow(0 0 15px rgba(54, 92, 119, 0.18))
            drop-shadow(0 0 40px rgba(54, 92, 119, 0.08))
            drop-shadow(0 0 80px rgba(54, 92, 119, 0.03));
    will-change: transform;
}

#orbitCenter .hero-tagline {
    margin-top: 1rem;
    margin-bottom: 0;
    white-space: nowrap;
    min-height: 1.6em;
}

#cursor {
    animation: blink 0.7s step-end infinite;
    color: var(--buxjr-accent);
    font-weight: 300;
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-tagline {
    font-size: 1.35rem;
    color: var(--buxjr-text-muted);
    font-weight: 300;
}

/* Fixed scroll chevrons */
.scroll-chevron {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    opacity: 0.4;
    text-decoration: none;
    cursor: pointer;
    transition: opacity 1.5s ease-in;
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.6))
            drop-shadow(0 0 10px rgba(200, 230, 255, 0.5))
            drop-shadow(0 0 20px rgba(54, 92, 119, 0.4));
}

.scroll-chevron.hidden {
    opacity: 0;
    pointer-events: none;
}

.scroll-chevron.faded {
    opacity: 0;
    pointer-events: none;
}

.scroll-chevron-down {
    bottom: 2rem;
    animation: chevronBounceDown 1.4s ease-in-out infinite;
}

.scroll-chevron-down svg {
    animation: chevronTwirl 9.8s linear infinite;
}

.scroll-chevron-up {
    top: 2rem;
    animation: chevronBounceUp 1.4s ease-in-out -0.5s infinite;
}

.scroll-chevron-up svg {
    animation: chevronTwirl 9.8s linear -3.5s infinite;
}

/* Continuous bounce on the <a> — never stops */
@keyframes chevronBounceDown {
    0%   { transform: translateX(-50%) translateY(0); }
    50%  { transform: translateX(-50%) translateY(6px); }
    100% { transform: translateX(-50%) translateY(0); }
}

@keyframes chevronBounceUp {
    0%   { transform: translateX(-50%) translateY(0); }
    50%  { transform: translateX(-50%) translateY(-6px); }
    100% { transform: translateX(-50%) translateY(0); }
}

/* Twirl + flash + coin settle on the SVG (9.8s = 7 bounces at 1.4s each) */
@keyframes chevronTwirl {
    /* Idle for ~7 bounces */
    0%    { transform: rotateY(0deg);    filter: none; }
    68%   { transform: rotateY(0deg);    filter: none; }
    /* Wind-up: slow counter-rotate */
    73%   { transform: rotateY(-55deg);  filter: none; }
    /* Twirl: smooth spin — flash at mid-spin */
    76%   { transform: rotateY(80deg);   filter: brightness(1); }
    77%   { transform: rotateY(120deg);  filter: brightness(4) drop-shadow(0 0 8px #fff); }
    78%   { transform: rotateY(160deg);  filter: brightness(1); }
    79%   { transform: rotateY(195deg);  filter: none; }
    80%   { transform: rotateY(210deg);  filter: none; }
    /* Settle starts immediately from overshoot */
    83%   { transform: rotateY(155deg);  filter: none; }
    /* Settle continues */
    84.5% { transform: rotateY(198deg);  filter: none; }
    87%   { transform: rotateY(166deg);  filter: none; }
    89%   { transform: rotateY(190deg);  filter: none; }
    91%   { transform: rotateY(174deg);  filter: none; }
    93%   { transform: rotateY(185deg);  filter: none; }
    95%   { transform: rotateY(177deg);  filter: none; }
    96.5% { transform: rotateY(182deg);  filter: none; }
    98%   { transform: rotateY(179deg);  filter: none; }
    99%   { transform: rotateY(180.5deg);filter: none; }
    100%  { transform: rotateY(180deg);  filter: none; }
}

/* About slide */
#about {
    position: relative;
    overflow: hidden;
}

#about .slide-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}


#about .container {
    position: relative;
    z-index: 1;
}

.about-pullquote {
    font-size: clamp(1.2rem, 3.2vh, 2.4rem);
    font-weight: 700;
    color: var(--buxjr-accent);
    text-align: center;
    margin-bottom: clamp(1rem, 3vh, 2.5rem);
    padding: clamp(0.25rem, 1vh, 1rem) 0;
    line-height: 1.3;
}

.about-body {
    margin-bottom: 0;
}

.about-body .sub-content {
    margin-bottom: clamp(1.5rem, 3.5vh, 3rem);
}

.about-body .sub-content:last-child {
    margin-bottom: 0;
}

.about-body p {
    font-size: clamp(0.85rem, 1.5vh, 1.1rem);
    line-height: 1.8;
    color: var(--buxjr-text-muted);
    margin-bottom: 0;
}

/* Services slide */
#services {
    position: relative;
    overflow: hidden;
}

.startrails-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.mountains-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

#services .slide-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.section-heading {
    font-weight: 700;
    font-size: clamp(1.3rem, 2.8vh, 2rem);
}

.service-card {
    background-color: var(--buxjr-bg-card);
    border: 1px solid var(--buxjr-border);
    border-radius: 0.5rem;
}

.service-card .card-body {
    padding: clamp(0.75rem, 2.2vh, 2rem) clamp(0.75rem, 1.5vw, 1.5rem);
}

.service-icon {
    color: var(--buxjr-accent);
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: clamp(28px, 5.5vh, 48px);
    height: clamp(28px, 5.5vh, 48px);
}

.service-card .card-title {
    color: var(--buxjr-text);
    font-weight: 500;
    font-size: clamp(0.9rem, 1.8vh, 1.25rem);
    margin-bottom: 1.25rem;
}

.service-card .card-text {
    color: var(--buxjr-text-muted);
    font-size: clamp(0.75rem, 1.4vh, 1rem);
    margin-bottom: 2.5rem;
}

#services .section-heading {
    margin-bottom: clamp(0.25rem, 0.5vh, 0.5rem);
}

#services .section-heading + p {
    margin-bottom: clamp(0.5rem, 2vh, 3rem);
}

#services .row.g-4 {
    --bs-gutter-y: clamp(0.5rem, 1.8vh, 1.5rem);
    --bs-gutter-x: clamp(0.5rem, 1.8vh, 1.5rem);
}

.card-icons {
    display: flex;
    justify-content: center;
    gap: clamp(0.35rem, 0.8vh, 0.75rem);
    margin-top: 2.5rem;
    padding-top: 3rem;
    border-top: 1px solid var(--buxjr-border);
}

.card-icons img {
    width: clamp(16px, 2.5vh, 22px);
    height: clamp(16px, 2.5vh, 22px);
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

.service-card:hover .card-icons img {
    opacity: 0.85;
}

/* Contact slide */
#contact {
    position: relative;
    overflow: hidden;
}

.constellation-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

#contact .slide-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

/* Floating label groups */
.form-floating-group {
    position: relative;
    overflow: visible;
}

.form-floating-group label {
    position: absolute;
    top: 50%;
    left: 0.85rem;
    transform: translateY(-50%);
    color: var(--buxjr-text-muted);
    font-size: clamp(0.8rem, 1.3vh, 1rem);
    font-weight: 400;
    pointer-events: none;
    transition: all 0.25s ease;
    transform-origin: left center;
    opacity: 0.6;
}

/* Textarea label anchors to top, not center */
.form-floating-group textarea ~ label {
    top: clamp(0.5rem, 1vh, 0.8rem);
    transform: translateY(0);
}

/* Float up when focused or has content */
.form-floating-group .form-control:focus ~ label,
.form-floating-group .form-control:not(:placeholder-shown) ~ label,
.form-floating-group .form-select:focus ~ label,
.form-floating-group .form-select.has-value ~ label {
    top: 0.35rem;
    transform: translateY(0) scale(0.78);
    font-size: clamp(0.8rem, 1.3vh, 1rem);
    opacity: 0.5;
    color: var(--buxjr-text-muted);
    background: none;
    padding: 0;
}

/* Form controls */
.form-control,
.form-select {
    background-color: var(--buxjr-bg-input);
    border: 1px solid var(--buxjr-border);
    color: var(--buxjr-text);
    padding: 1.5rem 0.85rem 0.5rem;
    padding-right: 2.5rem;
    font-size: clamp(0.8rem, 1.3vh, 1rem);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}


.form-select option {
    background-color: var(--buxjr-bg-input);
    color: var(--buxjr-text);
}

/* Force text color on autofill/autocomplete — browsers inject black text */
.form-control:-webkit-autofill,
.form-control:-webkit-autofill:hover,
.form-control:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--buxjr-text) !important;
    -webkit-box-shadow: 0 0 0 1000px var(--buxjr-bg-input) inset !important;
    box-shadow: 0 0 0 1000px var(--buxjr-bg-input) inset !important;
    caret-color: var(--buxjr-text);
    transition: background-color 5000s ease-in-out 0s;
}

/* Suppress Bootstrap's built-in validation styles */
.form-control.is-valid,
.form-control.is-invalid,
.form-select.is-valid,
.form-select.is-invalid {
    background-image: none !important;
    background-color: var(--buxjr-bg-input) !important;
}

.form-control.is-valid:focus,
.form-control.is-invalid:focus,
.form-select.is-valid:focus,
.form-select.is-invalid:focus {
    background-color: var(--buxjr-bg-input) !important;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--buxjr-bg-input);
    color: var(--buxjr-text);
    border-color: var(--buxjr-accent);
    box-shadow: 0 0 0 0.2rem rgba(54, 92, 119, 0.25), 0 0 15px rgba(54, 92, 119, 0.1);
}

/* Valid state — green glow */
.form-control.is-valid,
.form-select.is-valid {
    border-color: #2ea87a;
    box-shadow: 0 0 0 0.15rem rgba(46, 168, 122, 0.2);
}

.form-control.is-valid:focus,
.form-select.is-valid:focus {
    box-shadow: 0 0 0 0.2rem rgba(46, 168, 122, 0.3), 0 0 12px rgba(46, 168, 122, 0.1);
}

/* Invalid state — red glow + shake */
.form-control.is-invalid,
.form-select.is-invalid {
    border-color: #e05555;
    box-shadow: 0 0 0 0.15rem rgba(224, 85, 85, 0.2);
    animation: fieldShake 0.4s ease;
}

@keyframes fieldShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(3px); }
}

/* Float label color changes with validation */
.form-floating-group .form-control.is-valid ~ label,
.form-floating-group .form-select.is-valid ~ label {
    color: #2ea87a;
}

.form-floating-group .form-control.is-invalid ~ label,
.form-floating-group .form-select.is-invalid ~ label {
    color: #e05555;
}

/* Inline checkmark */
.field-check {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%) scale(0);
    color: #2ea87a;
    font-size: 1.1rem;
    font-weight: 700;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.form-floating-group textarea ~ .field-check {
    top: clamp(0.7rem, 1.2vh, 1rem);
    transform: translateY(0) scale(0);
}

.form-floating-group .form-control.is-valid ~ .field-check,
.form-floating-group .form-select.is-valid ~ .field-check {
    opacity: 1;
    transform: translateY(-50%) scale(1);
}

/* Phone country flag button — sits inside the input, right side */
.phone-flag-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.15rem 0.25rem;
    line-height: 1;
    border-radius: 3px;
    transition: background 0.2s ease;
    z-index: 2;
}

.phone-flag-btn:hover {
    background: var(--buxjr-bg-card);
}

/* Hide checkmark when flag button is present — flag takes that spot */
#phone.is-valid ~ .field-check {
    display: none;
}

/* Phone country popover */
.phone-flag-popover {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.35rem;
    background: var(--buxjr-bg-card);
    border: 1px solid var(--buxjr-border);
    border-radius: 0.5rem;
    padding: 0.5rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.2rem;
    z-index: 100;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    min-width: 200px;
}

.phone-flag-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.15rem;
    padding: 0.35rem 0.25rem;
    border: none;
    background: none;
    border-radius: 0.3rem;
    cursor: pointer;
    transition: background 0.15s ease;
}

.phone-flag-option:hover {
    background: var(--buxjr-bg-input);
}

.phone-flag-option .flag-emoji {
    font-size: 1.3rem;
    line-height: 1;
}

.phone-flag-option .flag-code {
    font-size: 0.55rem;
    color: var(--buxjr-text-muted);
    opacity: 0.7;
}

.form-floating-group textarea.is-valid ~ .field-check {
    transform: translateY(0) scale(1);
}

#contactForm .mb-3 {
    margin-bottom: clamp(1rem, 2.5vh, 1.75rem) !important;
}

#contactForm textarea.form-control {
    resize: none;
    scrollbar-width: thin;
    scrollbar-color: var(--buxjr-accent) transparent;
}

#contactForm textarea.form-control::-webkit-scrollbar {
    width: 6px;
}

#contactForm textarea.form-control::-webkit-scrollbar-track {
    background: transparent;
}

#contactForm textarea.form-control::-webkit-scrollbar-thumb {
    background: var(--buxjr-accent);
    border-radius: 3px;
}

#contactForm textarea.form-control::-webkit-scrollbar-thumb:hover {
    background: var(--buxjr-accent-hover);
}

#contactForm textarea.form-control.is-valid {
    scrollbar-color: rgba(46, 168, 122, 0.45) transparent;
}

#contactForm textarea.form-control.is-valid::-webkit-scrollbar-thumb {
    background: rgba(46, 168, 122, 0.45);
}

#contactForm textarea.form-control.is-valid::-webkit-scrollbar-thumb:hover {
    background: rgba(46, 168, 122, 0.6);
}


/* Mobile: fixed height when stacked */
@media (max-width: 991.98px) {
    #contactForm textarea.form-control {
        height: clamp(80px, 15vh, 150px);
    }
}

/* Submit button states */
#submitBtn {
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

#submitBtn:disabled {
    background-color: var(--buxjr-bg-input);
    color: var(--buxjr-text-muted);
    border-color: transparent;
    opacity: 0.6;
    cursor: not-allowed;
}

#submitBtn.ready {
    opacity: 1;
    animation: btnPulse 2s ease infinite;
}

#submitBtn.sending {
    opacity: 0.8;
    pointer-events: none;
}

#submitBtn.sent {
    background-color: #2ea87a;
    pointer-events: none;
}

@keyframes btnPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(54, 92, 119, 0); }
    50% { box-shadow: 0 0 20px 3px rgba(54, 92, 119, 0.35); }
}

#contact .section-heading {
    margin-bottom: clamp(0.5rem, 1.5vh, 1rem);
}

.contact-subtitle {
    color: var(--buxjr-text-muted);
    font-size: clamp(0.85rem, 1.4vh, 1.05rem);
    font-weight: 300;
    max-width: 680px;
    margin: 0 auto clamp(1.5rem, 3vh, 2.5rem);
    line-height: 1.6;
    opacity: 0.8;
}

/* Accent Button */
.btn-accent {
    background-color: var(--buxjr-bg-card);
    color: var(--buxjr-text);
    border: 1px solid transparent;
    padding: clamp(0.4rem, 0.9vh, 0.65rem) 2rem;
    font-weight: 500;
    font-size: clamp(0.85rem, 1.4vh, 1rem);
    transition: all 0.3s ease;
}

.btn-accent:hover,
.btn-accent:focus {
    background-color: var(--buxjr-accent);
    border-color: var(--buxjr-accent);
    color: #fff;
}

/* Footer — pinned to bottom of contact slide */
.slide-footer {
    position: absolute;
    bottom: clamp(0.5rem, 1.5vh, 1.5rem);
    left: 0;
    right: 0;
    text-align: center;
    color: var(--buxjr-text-muted);
    font-size: clamp(0.65rem, 1vh, 0.8rem);
    opacity: 0.5;
}

.sc-crescent {
    vertical-align: -4px;
    opacity: 0.8;
    margin: 0 0.5em;
}

/* Responsive */
@media (max-width: 767.98px) {
    /* Kill all flex centering on content slides — content flows from top */
    #about .slide-inner,
    #services .slide-inner,
    #contact .slide-inner {
        display: block !important;
        padding-top: 12vh !important;
    }

    #orbitCenter {
        top: 40%;
    }


    #orbitLogo {
        height: clamp(30px, 6vh, 45px);
    }

    .hero-tagline {
        font-size: clamp(0.8rem, 1.5vh, 1rem);
    }

    .section-heading {
        font-size: clamp(1.1rem, 2.5vh, 1.6rem);
    }

    #contact .slide-inner {
        padding-top: 4vh !important;
    }

    .slide-footer {
        position: static;
        margin-top: calc(1.5vh + 15px);
        padding-bottom: 1vh;
    }

    .scroll-chevron-down {
        bottom: clamp(0.75rem, 1.5vh, 1.5rem);
    }

    .scroll-chevron-up {
        top: clamp(0.75rem, 1.5vh, 1.5rem);
    }

    .scroll-chevron svg {
        width: 22px;
        height: 12px;
    }

    /* Mobile sub-slide system — stacked positioning for crossfade */
    .about-body {
        position: relative;
    }

    .about-body .sub-content {
        will-change: opacity, filter;
        top: 0;
        left: 0;
        width: 100%;
    }

    #services .row.g-4 {
        position: relative;
        margin-top: 1.5rem;
    }

    /* Mobile sub-slide: about section — bigger text since only 1 para at a time */
    .about-pullquote {
        font-size: clamp(1.3rem, 3.5vh, 2rem);
        margin-bottom: clamp(1.5rem, 4vh, 2.5rem);
    }

    .about-body p {
        font-size: clamp(0.95rem, 2vh, 1.1rem);
        line-height: 1.7;
        padding: 0 1rem;
    }

    /* Mobile sub-slide: services — single card centered */
    #services .col-md-6 {
        will-change: opacity, filter;
        top: 0;
        left: 0;
        right: 0;
        flex: 0 0 100%;
        max-width: 85%;
        margin: 0 auto;
    }

    .service-card .card-body {
        padding: 2rem 1.5rem;
    }

    .service-icon svg {
        width: 44px;
        height: 44px;
    }

    .service-card .card-title {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }

    .service-card .card-text {
        font-size: 1rem;
        line-height: 1.5;
    }

    .card-icons {
        margin-top: 1.5rem;
        padding-top: 1.5rem;
        gap: 0.6rem;
    }

    .card-icons img {
        width: 22px;
        height: 22px;
    }
}

/* Landscape / very short viewport safety net */
@media (max-height: 500px) {
    #services .col-md-6 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    .service-card .card-text {
        display: none;
    }

    .about-body p {
        font-size: 0.8rem;
        line-height: 1.3;
        margin-bottom: 0.4rem;
    }
}