/* ==========================================================================
   RAVINDER KHURANA // RK 1987
   Master stylesheet — single source of truth for all pages.
   Mobile-first. No inline styles needed in HTML.
   ========================================================================== */


/* --------------------------------------------------------------------------
   01. RESET & BASE
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    /* Prevent iOS text size adjust on orientation change */
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    font-weight: 300;
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

img,
svg {
    display: block;
    max-width: 100%;
}

button {
    font-family: inherit;
    color: inherit;
    background: none;
    border: none;
}

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


/* --------------------------------------------------------------------------
   02. DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
    /* Color */
    --bg-color: #030303;
    --text-color: #ffffff;
    --text-dim: rgba(255, 255, 255, 0.8);
    --text-dimmer: rgba(255, 255, 255, 0.6);
    --text-faint: rgba(255, 255, 255, 0.4);
    --border-faint: rgba(255, 255, 255, 0.1);
    --border-soft: rgba(255, 255, 255, 0.2);
    --border-mid: rgba(255, 255, 255, 0.3);

    /* Typography */
    --font-sans: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'SF Mono', Menlo, Consolas, monospace;
    --micro-font: 10px;
    --macro-font: clamp(2.5rem, 8vw, 10rem);
    --macro-font-xl: clamp(3rem, 11vw, 15rem); /* about page hero */

    /* Spacing scale (fluid) */
    --space-xs: clamp(0.5rem, 1vw, 0.75rem);
    --space-sm: clamp(1rem, 2vw, 1.5rem);
    --space-md: clamp(1.5rem, 3vw, 2.5rem);
    --space-lg: clamp(2.5rem, 5vw, 4rem);
    --space-xl: clamp(4rem, 10vh, 8rem);
    --space-xxl: clamp(6rem, 15vh, 12rem);

    /* Layout */
    --content-max: 800px;
    --gutter: clamp(1.25rem, 5vw, 4rem);
    --header-h: clamp(56px, 8vh, 80px);

    /* Transition */
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --speed-fast: 0.3s;
    --speed-mid: 0.5s;
    --speed-slow: 0.8s;
}


/* --------------------------------------------------------------------------
   03. TYPOGRAPHY UTILITIES
   -------------------------------------------------------------------------- */
.micro {
    font-size: var(--micro-font);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    opacity: 0.6;
    line-height: 1.4;
}

.macro {
    font-size: var(--macro-font);
    font-weight: 900;
    line-height: 0.85;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.glow {
    text-shadow: 0 0 40px rgba(255, 255, 255, 0.3);
}

.floating-text {
    will-change: transform;
    display: inline-block;
}


/* --------------------------------------------------------------------------
   04. ACCESSIBILITY
   -------------------------------------------------------------------------- */
.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -100px; left: 1rem;
    z-index: 10001;
    padding: 0.75rem 1.25rem;
    background: #fff;
    color: #000;
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: top var(--speed-fast) var(--ease);
}
.skip-link:focus { top: 1rem; }

*:focus { outline: none; }
*:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .floating-text { transform: none !important; }
}


/* --------------------------------------------------------------------------
   05. CUSTOM MAGNETIC CURSOR
   Mouse-only. Touch devices get the native experience.
   -------------------------------------------------------------------------- */
.cursor { display: none; }

@media (hover: hover) and (pointer: fine) {
    *, *::before, *::after { cursor: none; }

    .cursor {
        display: block;
        position: fixed;
        top: 0; left: 0;
        width: 20px; height: 20px;
        background-color: var(--text-color);
        border-radius: 50%;
        pointer-events: none;
        mix-blend-mode: difference;
        z-index: 9999;
        transform: translate(-50%, -50%);
        transition: width var(--speed-fast), height var(--speed-fast),
                    background-color var(--speed-fast);
        will-change: transform;
    }
    .cursor.hovered {
        width: 80px; height: 80px;
        background-color: transparent;
        border: 1px solid var(--text-color);
    }
}


/* --------------------------------------------------------------------------
   06. NAVIGATION
   Desktop: horizontal bar with mix-blend-mode difference
   Mobile (<= 900px): hamburger reveals full-screen overlay
   -------------------------------------------------------------------------- */
.site-nav {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    padding: var(--space-sm) var(--gutter);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    mix-blend-mode: difference;
}

.nav-brand {
    font-size: var(--micro-font);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: #fff;
    z-index: 1002;
    /* Tap target */
    padding: 0.5rem 0;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: clamp(1.25rem, 2.5vw, 2rem);
    list-style: none;
    align-items: center;
}

.nav-item {
    color: var(--text-color);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
    /* Tap target padding */
    padding: 0.5rem 0;
    display: inline-block;
}
.nav-item::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: 0; left: 0;
    background-color: var(--text-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s var(--ease);
}
.nav-item:hover::after,
.nav-item.is-active::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Hamburger (hidden on desktop) */
.nav-burger {
    display: none;
    width: 44px; height: 44px;
    position: relative;
    z-index: 1002;
    align-items: center;
    justify-content: center;
}
.nav-burger__line {
    display: block;
    width: 26px;
    height: 2px;
    background-color: #fff;
    margin: 4px 0;
    transition: transform 0.4s var(--ease), opacity 0.3s var(--ease);
}
.nav-burger[aria-expanded="true"] .nav-burger__line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.nav-burger[aria-expanded="true"] .nav-burger__line:nth-child(2) {
    opacity: 0;
}
.nav-burger[aria-expanded="true"] .nav-burger__line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 900px) {
    /* Disable mix-blend-mode on mobile so the solid menu reads cleanly */
    .site-nav { mix-blend-mode: normal; }

    .nav-burger {
        display: flex;
        flex-direction: column;
    }

    .nav-links {
        position: fixed;
        inset: 0;
        background-color: #050505;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-md);
        transform: translateX(100%);
        transition: transform 0.5s var(--ease);
        z-index: 1001;
        padding: var(--space-xl) var(--gutter);
    }
    .nav-links.is-open {
        transform: translateX(0);
    }

    .nav-item {
        font-size: 1.5rem;
        letter-spacing: 0.15em;
        padding: 0.75rem 0;
    }
}


/* --------------------------------------------------------------------------
   07. PAGE LAYOUT
   -------------------------------------------------------------------------- */
.container {
    padding: 0 var(--gutter);
    max-width: 100%;
}

.header-spacer {
    height: clamp(20vh, 25vh, 28vh);
}


/* --------------------------------------------------------------------------
   08. HERO TITLE
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    margin-bottom: var(--space-xl);
}
.hero__kicker {
    display: block;
    margin-bottom: var(--space-md);
}
.hero__line {
    display: block;
    margin-bottom: 0.05em;
}
.hero__line--shift-sm  { margin-left: 5vw;  opacity: 0.9; }
.hero__line--shift-lg  { margin-left: 10vw; opacity: 0.9; }
.hero__line--shift-xl  { margin-left: 10vw; opacity: 0.7; }

/* Reduce shifts on small screens so big type doesn't fall off the right edge */
@media (max-width: 600px) {
    .hero__line--shift-sm,
    .hero__line--shift-lg,
    .hero__line--shift-xl { margin-left: 4vw; }
}

/* Extra-small screens (iPhone SE class): scale down further so the
   longest word ("Outsourcing") cannot overflow */
@media (max-width: 400px) {
    :root {
        --macro-font: clamp(2rem, 11vw, 10rem);
        --macro-font-xl: clamp(2.5rem, 13vw, 15rem);
    }
    .hero__line--shift-sm,
    .hero__line--shift-lg,
    .hero__line--shift-xl { margin-left: 2vw; }
}

.hero--xl .macro {
    font-size: var(--macro-font-xl);
}

.hero--home {
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}


/* --------------------------------------------------------------------------
   09. EDITORIAL GRID (sticky label / content body pattern)
   -------------------------------------------------------------------------- */
.editorial-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    border-top: 1px solid var(--border-faint);
    padding-top: var(--space-lg);
}
.editorial-grid--last {
    border-bottom: 1px solid var(--border-faint);
    padding-bottom: var(--space-xl);
}

.sticky-label {
    position: sticky;
    top: calc(var(--header-h) + var(--space-md));
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-self: start;
}
.sticky-label__number {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 0.85;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    opacity: 0.2;
    text-shadow: 0 0 40px rgba(255, 255, 255, 0.3);
}
.sticky-label__list {
    opacity: 0.4;
    line-height: 1.6;
}

.content-body {
    max-width: var(--content-max);
}
.content-body h2 {
    font-size: clamp(1.75rem, 4vw, 3.5rem);
    margin-bottom: var(--space-md);
    line-height: 1.1;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: -0.01em;
}
.content-body p {
    font-size: clamp(1rem, 1.4vw, 1.25rem);
    line-height: 1.8;
    margin-bottom: var(--space-md);
    opacity: 0.8;
    font-weight: 300;
}
.content-body p strong {
    color: #fff;
    font-weight: 700;
    opacity: 1;
}

@media (max-width: 900px) {
    .editorial-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    .sticky-label {
        position: static;
        flex-direction: row;
        align-items: baseline;
        gap: var(--space-md);
        flex-wrap: wrap;
    }
    .sticky-label__number {
        font-size: clamp(2rem, 8vw, 3rem);
    }
}


/* --------------------------------------------------------------------------
   10. CTA LINK (large underlined "Visit X.com ↗" pattern)
   -------------------------------------------------------------------------- */
.cta-link {
    color: #fff;
    font-size: clamp(1.25rem, 2.5vw, 2rem);
    display: inline-block;
    margin-top: var(--space-md);
    border-bottom: 1px solid #fff;
    padding-bottom: 0.75rem;
    width: fit-content;
    max-width: 100%;
    transition: padding-left 0.4s var(--ease);
    word-break: break-word;
}
.cta-link:hover {
    padding-left: 0.5rem;
}


/* --------------------------------------------------------------------------
   11. HOMEPAGE — TECH MARQUEE
   -------------------------------------------------------------------------- */
.marquee {
    width: 100vw;
    overflow: hidden;
    white-space: nowrap;
    border-top: 1px solid var(--border-faint);
    border-bottom: 1px solid var(--border-faint);
    padding: 1.5rem 0;
    margin: var(--space-xl) 0;
    position: relative;
    left: calc(-1 * var(--gutter));
}
.marquee__track {
    display: inline-block;
    animation: marquee 25s linear infinite;
}
.marquee__track span {
    font-size: 14px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-right: 3rem;
    opacity: 0.5;
    font-family: var(--font-mono);
}
@keyframes marquee {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}


/* --------------------------------------------------------------------------
   12. HOMEPAGE — PILLAR CARDS
   -------------------------------------------------------------------------- */
.foundation-section { margin-bottom: var(--space-xl); }
.foundation-headline {
    font-size: clamp(1.5rem, 5vw, 4rem);
    max-width: 800px;
    margin-bottom: var(--space-lg);
    line-height: 1.1;
    font-weight: 700;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-md);
}
.pillar-card {
    border-left: 1px solid var(--border-mid);
    padding: 0.5rem 0 0.5rem 1.5rem;
    transition: border-color var(--speed-fast) var(--ease),
                padding-left var(--speed-fast) var(--ease);
    color: #fff;
    display: block;
}
.pillar-card:hover {
    border-color: #fff;
    padding-left: 2rem;
}
.pillar-card__num   { display: block; margin-bottom: 0.5rem; }
.pillar-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: -0.01em;
}
.pillar-card__desc {
    opacity: 0.8;
    line-height: 1.6;
    font-size: 12px;
    text-transform: none;
    letter-spacing: 0.02em;
    font-weight: 300;
}

.hero-tagline {
    position: absolute;
    bottom: 0; right: 0;
    text-align: right;
    max-width: 300px;
}
@media (max-width: 700px) {
    .hero-tagline {
        position: static;
        text-align: left;
        margin-top: var(--space-md);
        max-width: 100%;
    }
}


/* --------------------------------------------------------------------------
   13. BLOG LIST (techwriting page)
   -------------------------------------------------------------------------- */
.blog-list {
    display: flex;
    flex-direction: column;
    margin-top: var(--space-md);
}
.blog-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-soft);
    color: var(--text-color);
    transition: padding-left 0.4s var(--ease), border-color 0.4s var(--ease);
    gap: var(--space-md);
}
.blog-item:hover {
    padding-left: 2rem;
    border-color: #fff;
}
.blog-item__meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.blog-item__title {
    font-size: clamp(1.25rem, 2.5vw, 2rem);
    font-weight: 700;
    line-height: 1.2;
}
.blog-item__cta {
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .blog-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding: var(--space-md) 0;
    }
    .blog-item:hover { padding-left: 1rem; }
}


/* --------------------------------------------------------------------------
   14. CONTACT FORM
   -------------------------------------------------------------------------- */
.secure-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-sm);
}
.input-group {
    position: relative;
    display: flex;
    flex-direction: column;
}
.secure-form input,
.secure-form textarea {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-mid);
    color: var(--text-color);
    padding: 1rem 0;
    font-size: 1.1rem;
    outline: none;
    font-family: var(--font-mono);
    transition: border-color var(--speed-fast) var(--ease);
    width: 100%;
    border-radius: 0; /* iOS reset */
    -webkit-appearance: none;
            appearance: none;
}
.secure-form input:focus,
.secure-form textarea:focus {
    border-color: #fff;
}
.secure-form input::placeholder,
.secure-form textarea::placeholder {
    color: var(--border-mid);
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.95rem;
}
.secure-form textarea { resize: vertical; min-height: 120px; }

.submit-btn {
    background: var(--text-color);
    color: var(--bg-color);
    padding: 1.25rem 2.5rem;
    font-size: 1rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    align-self: flex-start;
    margin-top: var(--space-sm);
    transition: transform var(--speed-fast) var(--ease), opacity var(--speed-fast) var(--ease);
    min-height: 48px;
    cursor: pointer;
}
.submit-btn:hover { transform: scale(1.04); }
.submit-btn:disabled {
    opacity: 0.5;
    transform: none;
    pointer-events: none;
}

@media (hover: hover) and (pointer: fine) {
    .submit-btn { cursor: none; }
}

/* Honeypot — invisible to humans, visible to bots */
.honeypot {
    position: absolute !important;
    left: -9999px !important;
    top: -9999px !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

/* Form status (success / error / pending) */
.form-status {
    margin-top: var(--space-sm);
    font-size: 0.95rem;
    line-height: 1.5;
    min-height: 1.5em;
    opacity: 0;
    transition: opacity var(--speed-fast) var(--ease);
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
}
.form-status.is-pending,
.form-status.is-success,
.form-status.is-error { opacity: 1; }
.form-status.is-pending { color: rgba(255, 255, 255, 0.7); }
.form-status.is-success { color: #8ef58e; }
.form-status.is-error   { color: #ff8e8e; }


/* --------------------------------------------------------------------------
   15. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
    border-top: 1px solid var(--border-soft);
    padding: var(--space-xl) var(--gutter) var(--space-lg);
    margin-top: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: var(--space-lg);
    align-items: start;
}

.footer-brand__name {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}
.footer-brand__tag {
    margin-top: 1rem;
    max-width: 320px;
}

.footer-col__title {
    font-size: var(--micro-font);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    opacity: 0.5;
    margin-bottom: var(--space-sm);
}
.footer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}
.footer-list a {
    color: var(--text-color);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
    opacity: 0.8;
    transition: opacity var(--speed-fast) var(--ease);
    display: inline-block;
    padding: 0.25rem 0;
}
.footer-list a:hover { opacity: 1; }

/* Latest Transmissions block (homepage) */
.footer-blogs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: 0.5rem;
}
.blog-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: var(--text-color);
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-faint);
    transition: border-color var(--speed-fast) var(--ease);
}
.blog-card:hover { border-color: #fff; }
.blog-card__title {
    font-size: 1.05rem;
    margin-top: 0.5rem;
    font-weight: 400;
    line-height: 1.3;
    text-transform: capitalize;
}
.footer-transmissions { margin-bottom: var(--space-lg); }
.footer-transmissions__cta {
    display: inline-block;
    margin-top: var(--space-md);
    color: #fff;
    border-bottom: 1px solid #fff;
    padding-bottom: 0.5rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-faint);
    padding-top: var(--space-md);
    gap: var(--space-md);
    flex-wrap: wrap;
}
.back-to-top {
    opacity: 0.8;
    font-weight: 700;
    transition: opacity var(--speed-fast) var(--ease);
}
.back-to-top:hover { opacity: 1; }

@media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr; gap: var(--space-md); }
    .footer-blogs { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .footer-blogs { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 1rem; }
}


/* --------------------------------------------------------------------------
   16. PAGE FADE-IN (subtle)
   -------------------------------------------------------------------------- */
.fade-in {
    animation: fadeIn 0.8s var(--ease) both;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}