/* ==========================================================================
   SITE.CSS — Global Design System
   Shared across ALL pages (navbar, footer, buttons, base variables)
   ========================================================================== */

:root {
    --color-surface: #F4F4F6;
    --color-surface-dim: #E4E4E6;
    --color-surface-bright: #F4F4F6;
    --color-surface-container-lowest: #FFFFFF;
    --color-surface-container-low: #FAFAFB;
    --color-surface-container: #F4F4F6;
    --color-surface-container-high: #EAEAEB;
    --color-surface-container-highest: #E4E4E6;
    --color-on-surface: #1A1A2E;
    --color-on-surface-variant: #6B7280;
    --color-inverse-surface: #1A1A2E;
    --color-inverse-on-surface: #F4F4F6;
    --color-outline: #6B7280;
    --color-outline-variant: #E2E8F0;

    --color-navy: #1A1A2E;
    --color-gold: #00BFFF;
    /* Accent 1 (Cyan) */
    --color-accent-1: #00BFFF;
    --color-accent-2: #7B2FBE;
    --color-secondary-fixed: #0b67bd;
    --color-slate: #6B7280;
    --color-border-light: #E2E8F0;

    --container-max: 1280px;
    --gutter: 16px;
    --margin-desktop: 48px;
    --section-gap: 80px;
}

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

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

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
.label-sm {
    font-family: 'Geist', sans-serif;
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.mono-label {
    font-family: 'Geist', sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 1;
    letter-spacing: 0.02em;
}

/* ==========================================================================
   LAYOUT
   ========================================================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--margin-desktop);
    width: 100%;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: 'Geist', sans-serif;
    font-size: 14px;
    font-weight: 600;
    border-radius: 0px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.btn-primary {
    background-color: var(--color-gold);
    color: var(--color-navy);
}

.btn-primary:hover {
    background-color: #bfa165;
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--color-outline-variant);
    color: var(--color-navy);
}

.btn-secondary:hover {
    border-color: var(--color-navy);
    background-color: rgba(10, 22, 40, 0.02);
}

.btn-outline-white {
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #ffffff;
    font-size: 12px;
    padding: 10px 20px;
}

.btn-outline-white:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
}

/* ==========================================================================
   NAVBAR
   ========================================================================== */
body {
    margin: 0;
    padding: 0;
}

/* .page-content {
    padding-top: 72px; /* matches navbar height */
}

*/ .service-card,
.product-card,
.project-card {
    cursor: pointer;
}

a.service-card,
a.product-card,
a.project-card {
    color: inherit;
    text-decoration: none;
}


.trusted-ribbon {
    padding: 32px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

.trusted-ribbon-label {
    text-align: center;
    font-size: 11px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 24px;
    font-weight: 500;
}

.logo-track-outer {
    overflow: hidden;
    position: relative;
}

.logo-track-outer::before,
.logo-track-outer::after {
    content: '';
    position: absolute;
    top: 0;
    width: 80px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.logo-track-outer::before {
    left: 0;
    background: linear-gradient(to right, var(--color-navy), transparent);
}

.logo-track-outer::after {
    right: 0;
    background: linear-gradient(to left, var(--color-navy), transparent);
}

.logo-track {
    display: flex;
    align-items: center;
    width: max-content;
    animation: logo-scroll 28s linear infinite;
}

.logo-track:hover {
    animation-play-state: paused;
}

@keyframes logo-scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 48px;
}

.logo-img {
    height: 44px;
    width: auto;
    object-fit: contain;
    filter: none;
    /* grayscale সরাও */
    opacity: 1;
    /* full opacity */
    transition: opacity .3s;
}

.logo-item:hover .logo-img {
    opacity: 0.8;
}

.logo-text {
    font-size: 16px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.55);
    white-space: nowrap;
    transition: color .3s;
}

.logo-item:hover .logo-text {
    color: var(--color-gold);
}

/* REPLACE previous trusted-ribbon CSS with this */

.trusted-ribbon {
    padding: 40px 0;
    background-color: #ffffff;
    /* বা যে bg আছে সেটা */
    overflow: hidden;
}

.trusted-ribbon-label {
    text-align: center;
    font-size: 11px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: #999;
    margin-bottom: 28px;
    font-weight: 500;
}

.logo-track-outer {
    overflow: hidden;
    position: relative;
}

.logo-track-outer::before,
.logo-track-outer::after {
    content: '';
    position: absolute;
    top: 0;
    width: 80px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.logo-track-outer::before {
    left: 0;
    background: linear-gradient(to right, #ffffff, transparent);
}

.logo-track-outer::after {
    right: 0;
    background: linear-gradient(to left, #ffffff, transparent);
}

.logo-track {
    display: flex;
    align-items: center;
    width: max-content;
    animation: logo-scroll 28s linear infinite;
}

.logo-track:hover {
    animation-play-state: paused;
}

@keyframes logo-scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 48px;
}

.logo-img {
    height: 44px;
    width: auto;
    object-fit: contain;

    opacity: 1;
    transition: filter .3s, opacity .3s;
}

.logo-item:hover .logo-img {
    opacity: 0.8;
}

.logo-text {
    font-size: 16px;
    font-weight: 500;
    color: #aaa;
    white-space: nowrap;
    transition: color .3s;
}

.logo-item:hover .logo-text {
    color: #C8A96E;
}



.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(8px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    padding: 0;
}

.navbar .btn-outline-white {
    border: 1px solid var(--color-navy);
    color: var(--color-navy);
}

.navbar .btn-outline-white:hover {
    background-color: var(--color-navy);
    color: #ffffff;
    border-color: var(--color-navy);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.brand-logo {
    font-family: 'Geist', sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-navy);
    letter-spacing: -0.01em;
    display: flex !important;
    align-items: center;
    flex-shrink: 0;
}

.brand-logo span {
    color: var(--color-gold);
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    font-family: 'Geist', sans-serif;
    font-size: 13px;
    font-weight: 400;
    color: #374151;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color 0.2s ease;
    white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-navy);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 10001;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-navy);
    transition: all 0.3s ease;
}

/* Mobile sidebar overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.open {
    display: block;
    opacity: 1;
}

/* Mobile sidebar */
.mobile-sidebar {
    position: fixed;
    right: 0;
    top: 0;
    width: 280px;
    height: 100%;
    background: var(--color-navy);
    z-index: 9999;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: 24px 0;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-sidebar.open {
    transform: translateX(0);
}

.sidebar-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 24px;
    cursor: pointer;
    padding: 8px 24px;
    align-self: flex-end;
    line-height: 1;
    transition: color 0.2s;
}

.sidebar-close:hover {
    color: var(--color-gold);
}

.sidebar-nav {
    list-style: none;
    margin: 0;
    padding: 16px 0;
    flex-grow: 1;
}

.sidebar-nav li a {
    display: block;
    padding: 14px 28px;
    font-family: 'Geist', sans-serif;
    font-size: 13px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.75);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: color 0.2s, background 0.2s;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-nav li a:hover,
.sidebar-nav li a.active {
    color: var(--color-gold);
    background: rgba(200, 169, 110, 0.07);
}

.sidebar-cta {
    padding: 0 24px 16px 24px;
}

.sidebar-cta .btn {
    width: 100%;
    justify-content: center;
}

@media (max-width: 1024px) {
    .navbar .container {
        height: 70px;
    }

    .nav-links,
    .navbar>.container>.btn-outline-white {
        display: none !important;
    }

    .hamburger {
        display: flex !important;
    }
}

@media (min-width: 1025px) {
    .hamburger {
        display: none !important;
    }

    .nav-links {
        display: flex !important;
    }

    .navbar>.container>.btn-outline-white {
        display: block !important;
    }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background-color: var(--color-navy);
    color: rgba(255, 255, 255, 0.6);
    padding: 80px 0 40px 0;
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 64px;
}

.footer-col-brand .brand-logo {
    margin-bottom: 24px;
}

.footer-col-brand p {
    line-height: 1.6;
    max-width: 280px;
}

.footer-col-title {
    font-family: 'Geist', sans-serif;
    font-size: 12px;
    font-weight: 600;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 24px;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--color-gold);
}

.footer-contact-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    margin-bottom: 16px;
}

.footer-contact-item i {
    color: var(--color-gold);
    margin-top: 2px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
}

.footer-legal-links {
    display: flex;
    gap: 24px;
}

.footer-legal-links a:hover {
    color: var(--color-gold);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
    :root {
        --margin-desktop: 32px;
        --section-gap: 60px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --margin-desktop: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .footer-legal-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}