/* =========================================================
   TECH HYBR
   HEADER + RESPONSIVE NAVIGATION
   ========================================================= */


/* =========================================================
   THEME
   ========================================================= */

:root {
    --ink: #0B0E13;
    --ink-soft: #151a22;

    --paper: #F3EFE6;
    --paper-dim: #e8e2d3;

    --amber: #E8A33D;
    --amber-soft: #f0c07a;

    --teal: #37B7A8;

    --graphite: #9096a1;
    --graphite-dark: #565c68;

    --line: rgba(243, 239, 230, 0.14);

    --radius: 2px;

    --display: "Space Grotesk", sans-serif;
    --body: "Inter", sans-serif;
    --mono: "JetBrains Mono", monospace;
}


/* =========================================================
   RESET
   ========================================================= */

html {
    margin: 0;
    padding: 0;
    width: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100vh;

    font-family: var(--body);

    background: var(--paper);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}


/* =========================================================
   HEADER
   ========================================================= */

.site-header {
    position: sticky;
    top: 0;
    left: 0;

    z-index: 9999;

    width: 100%;
    margin: 0;
    padding: 0;

    color: var(--paper);

    font-family: var(--body);

    background: var(--ink);

    /*
     * Prevent the sticky header from being affected
     * by accidental width/overflow issues.
     */
    isolation: isolate;

    box-shadow:
        0 4px 18px rgba(0, 0, 0, 0.12);
}

.site-header a {
    color: inherit;
    text-decoration: none;
}


/* =========================================================
   COMMON CONTAINER
   ========================================================= */

.header-container {
    width: min(1200px, calc(100% - 48px));

    margin: 0 auto;
}


/* =========================================================
   TOP RIBBON
   ========================================================= */

.header-ribbon {
    width: 100%;

    margin: 0;
    padding: 0;

    background: var(--ink);

    border-bottom: 1px solid var(--line);
}

.ribbon-inner {
    min-height: 34px;

    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.ribbon-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;

    gap: 24px;
}

.ribbon-link {
    display: inline-flex;
    align-items: center;

    gap: 8px;

    white-space: nowrap;

    color: var(--graphite);

    font-family: var(--mono);

    font-size: 10px;
    font-weight: 500;

    line-height: 1;
    letter-spacing: 0.08em;

    text-transform: uppercase;

    transition:
        color 0.2s ease,
        transform 0.2s ease;
}

.ribbon-link:hover {
    color: var(--paper);

    transform: translateY(-1px);
}

.ribbon-dot {
    width: 5px;
    height: 5px;

    flex: 0 0 5px;

    border-radius: 50%;

    background: var(--amber);

    box-shadow:
        0 0 0 3px rgba(232, 163, 61, 0.08);
}

/* =========================================================
   MULTI-COLOR LED BLINKING RIBBON
   ========================================================= */

.ribbon-link {
    position: relative;
    color: var(--ribbon-color, var(--graphite));
    animation: ribbonLedBlink 2.4s ease-in-out infinite;
    will-change: opacity, filter, text-shadow;
}

.ribbon-link:nth-child(1) {
    --ribbon-color: #E8A33D;
    --ribbon-glow: rgba(232, 163, 61, 0.95);
    animation-delay: 0s;
}

.ribbon-link:nth-child(2) {
    --ribbon-color: #37B7A8;
    --ribbon-glow: rgba(55, 183, 168, 0.95);
    animation-delay: 0.30s;
}

.ribbon-link:nth-child(3) {
    --ribbon-color: #7AA7FF;
    --ribbon-glow: rgba(122, 167, 255, 0.95);
    animation-delay: 0.60s;
}

.ribbon-link:nth-child(4) {
    --ribbon-color: #FF6B6B;
    --ribbon-glow: rgba(255, 107, 107, 0.95);
    animation-delay: 0.90s;
}

.ribbon-link:nth-child(5) {
    --ribbon-color: #C084FC;
    --ribbon-glow: rgba(192, 132, 252, 0.95);
    animation-delay: 1.20s;
}

.ribbon-link:nth-child(6) {
    --ribbon-color: #4ADE80;
    --ribbon-glow: rgba(74, 222, 128, 0.95);
    animation-delay: 1.50s;
}

.ribbon-link:nth-child(7) {
    --ribbon-color: #F472B6;
    --ribbon-glow: rgba(244, 114, 182, 0.95);
    animation-delay: 1.80s;
}

.ribbon-link:nth-child(8) {
    --ribbon-color: #FACC15;
    --ribbon-glow: rgba(250, 204, 21, 0.95);
    animation-delay: 2.10s;
}

.ribbon-link .ribbon-dot {
    background: var(--ribbon-color);
    box-shadow:
        0 0 4px var(--ribbon-glow),
        0 0 9px var(--ribbon-glow),
        0 0 16px var(--ribbon-glow);
    animation: ribbonDotBlink 1.15s ease-in-out infinite;
    animation-delay: inherit;
}

.ribbon-link:hover {
    color: var(--ribbon-color);
    animation-play-state: paused;
    opacity: 1;
    filter: brightness(1.35);
    text-shadow:
        0 0 5px var(--ribbon-glow),
        0 0 12px var(--ribbon-glow);
    transform: translateY(-1px);
}

.ribbon-link:hover .ribbon-dot {
    animation-play-state: paused;
    transform: scale(1.35);
}

@keyframes ribbonLedBlink {
    0%, 100% {
        opacity: 0.60;
        filter: brightness(0.70);
        text-shadow: 0 0 0 transparent;
    }

    18% {
        opacity: 1;
        filter: brightness(1.18);
        text-shadow:
            0 0 4px var(--ribbon-glow),
            0 0 10px var(--ribbon-glow);
    }

    28% {
        opacity: 0.76;
        filter: brightness(0.88);
        text-shadow: 0 0 2px var(--ribbon-glow);
    }

    36% {
        opacity: 1;
        filter: brightness(1.40);
        text-shadow:
            0 0 5px var(--ribbon-glow),
            0 0 14px var(--ribbon-glow);
    }

    50% {
        opacity: 0.65;
        filter: brightness(0.72);
        text-shadow: 0 0 0 transparent;
    }
}

@keyframes ribbonDotBlink {
    0%, 100% {
        opacity: 0.45;
        transform: scale(0.82);
        box-shadow: 0 0 2px var(--ribbon-glow);
    }

    35% {
        opacity: 1;
        transform: scale(1.18);
        box-shadow:
            0 0 4px var(--ribbon-glow),
            0 0 10px var(--ribbon-glow),
            0 0 18px var(--ribbon-glow);
    }

    55% {
        opacity: 0.40;
        transform: scale(0.78);
        box-shadow: 0 0 2px var(--ribbon-glow);
    }

    70% {
        opacity: 1;
        transform: scale(1.10);
        box-shadow:
            0 0 5px var(--ribbon-glow),
            0 0 12px var(--ribbon-glow);
    }
}


/* =========================================================
   MAIN HEADER
   ========================================================= */

.header-main {
    width: 100%;

    margin: 0;
    padding: 0;

    background: var(--ink);

    border-bottom: 1px solid var(--line);
}

.header-inner {
    min-height: 102px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 30px;
}


/* =========================================================
   LOGO
   IMAGE VERSION
   ========================================================= */

.techhybr-logo {
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;

    flex: 0 0 auto;

    width: auto;
    height: 94px;

    margin: 0;
    padding: 0;

    line-height: 0;

    text-decoration: none;

    transition:
        opacity 0.2s ease,
        transform 0.2s ease;
}

.techhybr-logo:hover {
    opacity: 0.92;
}

.techhybr-logo-image {
    display: block;
    width: auto;
    height: 75px;
    max-width: 280px;
    margin: 0;
    padding: 0;
    object-fit: contain;
    object-position: left center;
    border: 0;
    outline: none;
    vertical-align: middle;

    /*
     * Prevent browser image baseline spacing.
     */
    line-height: 0;
}


/* =========================================================
   DESKTOP NAV
   ========================================================= */

.desktop-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;

    gap: 2px;

    margin-left: auto;
}

.nav-link {
    position: relative;

    min-height: 42px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 0 13px;

    color: var(--graphite);

    font-family: var(--display);

    font-size: 13px;
    font-weight: 500;

    line-height: 1;
    letter-spacing: 0.01em;

    white-space: nowrap;

    transition:
        color 0.2s ease,
        background 0.2s ease;
}

.nav-link::after {
    content: "";

    position: absolute;

    left: 13px;
    right: 13px;

    bottom: 3px;

    height: 1px;

    background: var(--amber);

    transform: scaleX(0);

    transform-origin: right;

    transition:
        transform 0.2s ease;
}

.nav-link:hover {
    color: var(--paper);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);

    transform-origin: left;
}

.nav-link.active {
    color: var(--paper);
}


/* =========================================================
   CONTACT BUTTON
   ========================================================= */

.nav-contact {
    margin-left: 8px;

    padding: 0 18px;

    color: var(--ink);

    background: var(--amber);

    border-radius: var(--radius);
}

.nav-contact::after {
    display: none;
}

.nav-contact:hover,
.nav-contact.active {
    color: var(--ink);

    background: var(--amber-soft);
}


/* =========================================================
   MOBILE MENU BUTTON
   ========================================================= */

.menu-toggle {
    display: none;

    position: relative;

    width: 44px;
    height: 44px;

    flex: 0 0 44px;

    margin: 0;
    padding: 0;

    align-items: center;
    justify-content: center;

    flex-direction: column;

    gap: 5px;

    border: 1px solid var(--line);

    border-radius: var(--radius);

    background: transparent;

    color: var(--paper);

    cursor: pointer;

    -webkit-tap-highlight-color: transparent;

    appearance: none;
}

.menu-toggle:hover {
    background: rgba(243, 239, 230, 0.05);
}

.menu-toggle:focus-visible {
    outline: 1px solid var(--amber);
    outline-offset: 3px;
}

.menu-toggle span {
    display: block;

    width: 20px;
    height: 1px;

    flex: 0 0 1px;

    background: var(--paper);

    transform-origin: center;

    transition:
        transform 0.25s ease,
        opacity 0.2s ease;
}


/* =========================================================
   MOBILE X ICON
   ========================================================= */

.menu-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}


/* =========================================================
   MOBILE MENU
   ========================================================= */

/* =========================================================
   MOBILE MENU
   ========================================================= */

.mobile-menu {
    position: relative;
    z-index: 10000;

    width: 100%;
    max-height: 0;

    overflow: hidden;
    visibility: hidden;
    opacity: 0;

    background: var(--ink-soft);
    border-bottom: 1px solid transparent;

    transition:
        max-height 0.35s ease,
        opacity 0.25s ease,
        visibility 0.35s ease,
        border-color 0.35s ease;
}

.mobile-menu.active {
    max-height: 500px;
    visibility: visible;
    opacity: 1;

    border-bottom-color: var(--line);
}

/* =========================================================
   MOBILE NAV
   ========================================================= */

.mobile-nav {
    width: min(1200px, calc(100% - 48px));

    margin: 0 auto;

    padding: 6px 0 16px;
}

.mobile-nav-link {
    min-height: 54px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0;

    border-bottom: 1px solid var(--line);

    color: var(--paper);

    font-family: var(--display);

    font-size: 16px;
    font-weight: 500;

    line-height: 1;

    transition:
        color 0.2s ease,
        padding-left 0.2s ease;
}

.mobile-nav-link:last-child {
    border-bottom: 0;
}

.mobile-nav-link span {
    color: var(--graphite);
    font-family: var(--mono);
    font-size: 17px;
    line-height: 1;
    letter-spacing: 0.1em;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--amber);
}

.mobile-nav-link:hover {
    padding-left: 6px;
}

.mobile-contact {
    color: var(--amber);
}


/* =========================================================
   RESPONSIVE RIBBON — TWO ROW LAYOUT
   ========================================================= */

@media (max-width: 820px) {
    .header-ribbon {
        overflow: hidden;
    }

    .ribbon-inner {
        min-height: 56px;
        padding: 5px 8px;
        justify-content: center;
        overflow: hidden;
    }

    .ribbon-links {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        grid-template-rows: repeat(2, minmax(22px, auto));
        align-items: center;
        justify-items: center;
        column-gap: 8px;
        row-gap: 2px;
        overflow: visible;
        padding: 0;
    }

    .ribbon-link {
        width: 100%;
        min-width: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        font-size: 10px;
        line-height: 1.15;
        letter-spacing: 0.035em;
        gap: 5px;
    }

    .ribbon-dot {
        flex: 0 0 5px;
        width: 5px;
        height: 5px;
    }
}

@media (max-width: 520px) {
    .ribbon-inner {
        min-height: 54px;
        padding: 4px 6px;
    }

    .ribbon-links {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        grid-template-rows: repeat(2, minmax(20px, auto));
        column-gap: 4px;
        row-gap: 1px;
    }

    .ribbon-link {
        font-size: 9px;
        line-height: 1.1;
        letter-spacing: 0.015em;
        gap: 4px;
    }

    .ribbon-dot {
        flex-basis: 4px;
        width: 4px;
        height: 4px;
    }
}

@media (max-width: 390px) {
    .ribbon-inner {
        min-height: 52px;
        padding: 3px 4px;
    }

    .ribbon-links {
        column-gap: 2px;
    }

    .ribbon-link {
        font-size: 8px;
        letter-spacing: 0;
        gap: 3px;
    }

    .ribbon-dot {
        flex-basis: 4px;
        width: 4px;
        height: 4px;
    }
}

@media (max-width: 340px) {
    .ribbon-link {
        font-size: 7.5px;
    }
}

/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 1080px) {

    .header-container {
        width: min(100% - 36px, 1000px);
    }

    .header-inner {
        min-height: 92px;
        gap: 20px;
    }

    .techhybr-logo {
        height: 82px;
    }

    .techhybr-logo-image {
        height: 80px;
        max-width: 245px;
    }

    .nav-link {
        padding-left: 9px;
        padding-right: 9px;

        font-size: 12px;
    }

    .nav-link::after {
        left: 9px;
        right: 9px;
    }

    .nav-contact {
        margin-left: 5px;

        padding-left: 13px;
        padding-right: 13px;
    }
}


/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 820px) {

    .header-container {
        width: calc(100% - 28px);
    }


    /* -----------------------------------------------------
       Ribbon
       ----------------------------------------------------- */

    .ribbon-inner {
        min-height: 32px;

        justify-content: center;
    }

    .ribbon-links {
        width: 100%;

        justify-content: center;

        gap: 14px;
    }

    .ribbon-link {
        font-size: 10px;
        line-height: 1.2;
        letter-spacing: 0.055em;
    }

    .ribbon-dot {
        width: 4px;
        height: 4px;

        flex-basis: 4px;
    }


    /* -----------------------------------------------------
       Main Header
       ----------------------------------------------------- */

    .header-inner {
        min-height: 82px;
        gap: 16px;
    }


    /* -----------------------------------------------------
       Desktop Navigation
       ----------------------------------------------------- */

    .desktop-nav {
        display: none;
    }


    /* -----------------------------------------------------
       Hamburger
       ----------------------------------------------------- */

    .menu-toggle {
        display: flex;
    }


    /* -----------------------------------------------------
       Logo
       ----------------------------------------------------- */

    .techhybr-logo {
        height: 72px;
    }

    .techhybr-logo-image {
        height: 68px;
        max-width: 215px;
    }
}


/* =========================================================
   SMALL MOBILE
   ========================================================= */

@media (max-width: 520px) {

    .header-container {
        width: calc(100% - 20px);
    }


    /* -----------------------------------------------------
       Ribbon
       ----------------------------------------------------- */

    .ribbon-inner {
        min-height: 30px;
    }

    .ribbon-links {
        gap: 9px;
    }

    .ribbon-link {
        font-size: 9px;
        line-height: 1.2;
        letter-spacing: 0.04em;
    }

    .ribbon-dot {
        display: inline-block;
        width: 4px;
        height: 4px;
        flex-basis: 4px;
    }


    /* -----------------------------------------------------
       Main Header
       ----------------------------------------------------- */

    .header-inner {
        min-height: 74px;
        gap: 12px;
    }


    /* -----------------------------------------------------
       Logo
       ----------------------------------------------------- */

    .techhybr-logo {
        height: 66px;
        min-width: 0;
    }

    .techhybr-logo-image {
        height: 62px;
        max-width: 195px;
    }


    /* -----------------------------------------------------
       Hamburger
       ----------------------------------------------------- */

    .menu-toggle {
        width: 40px;
        height: 40px;

        flex-basis: 40px;
    }


    /* -----------------------------------------------------
       Mobile Navigation
       ----------------------------------------------------- */

    .mobile-nav {
        width: calc(100% - 20px);
    }

    .mobile-nav-link {
        min-height: 52px;

        font-size: 15px;
    }
}


/* =========================================================
   VERY SMALL MOBILE
   ========================================================= */

@media (max-width: 360px) {

    .ribbon-links {
        gap: 6px;
    }

    .ribbon-link {
        font-size: 8px;
    }


    /* -----------------------------------------------------
       Logo
       ----------------------------------------------------- */

    .techhybr-logo-image {
        height: 58px;
        max-width: 170px;
    }


    /* -----------------------------------------------------
       Hamburger
       ----------------------------------------------------- */

    .menu-toggle {
        width: 38px;
        height: 38px;

        flex-basis: 38px;
    }
}


/* =========================================================
   LANDSCAPE MOBILE
   ========================================================= */

@media (max-width: 820px) and (orientation: landscape) {

    .header-inner {
        min-height: 72px;
    }

    .techhybr-logo {
        height: 62px;
    }

    .techhybr-logo-image {
        height: 58px;
    }

    .mobile-nav-link {
        min-height: 48px;
    }
}


/* =========================================================
   ACCESSIBILITY
   ========================================================= */

.site-header a:focus-visible,
.site-header button:focus-visible {
    outline: 1px solid var(--amber);

    outline-offset: 3px;
}


/* =========================================================
   REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto !important;
    }

    .site-header *,
    .site-header *::before,
    .site-header *::after {
        scroll-behavior: auto !important;

        transition: none !important;

        animation: none !important;
    }
}