:root {
    --primary-color: #2b91cf;
    --sidebar-bg: #111418;
    --sidebar-width: 260px;
    --body-bg: #212529; 
    --text-color: #4c4d4d;
    --heading-color: #252b33;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    background-color: #fff;
    overflow-x: hidden;
}
html {
    scroll-behavior: smooth;
}

/* Sidebar */
#sidebar {
    width: var(--sidebar-width);
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    background-color: var(--sidebar-bg);
    z-index: 1030;
    transition: all 0.3s ease;
    overflow-y: auto;
}

#sidebar .profile-img {
    width: 160px;
    height: 160px;
    border: 7px solid #0d426e;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

#sidebar .profile-img:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 25px rgba(43, 145, 207, 0.45);
    transform: scale(1.03);
}

#sidebar .profile-img .profile-img-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 50%;
}

#sidebar .profile-img:hover .profile-img-overlay {
    opacity: 1;
}

/* Profile Image Lightbox Modal */
#imagePreviewModal .modal-content {
    background: transparent;
    border: none;
}

#imagePreviewModal .preview-img {
    max-height: 80vh;
    max-width: 90vw;
    border-radius: 1.5rem;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.1);
    object-fit: contain;
}

.modal-backdrop.show {
    backdrop-filter: blur(8px);
}

#sidebar .nav-link {
    color: #a8a9a9;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.2s;
}

#sidebar .nav-link:hover, #sidebar .nav-link.active {
    color: var(--primary-color);
}

/* Main Content */
#content {
    margin-left: var(--sidebar-width);
    transition: all 0.3s ease;
}

/* RTL Support */
html[dir="rtl"] #sidebar {
    left: auto;
    right: 0;
}
html[dir="rtl"] #content {
    margin-left: 0;
    margin-right: var(--sidebar-width);
}
html[dir="rtl"] body {
    font-family: 'Cairo', sans-serif;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: url('../images/cover.webp') center center no-repeat;
    background-size: cover;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(17, 20, 24, 0.9);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: #fff;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

.text-primary {
    color: var(--primary-color) !important;
}
.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}
.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: #fff;
}
.btn-outline-light {
    border-color: #dee2e6;
    color: #dee2e6;
}
.btn-outline-light:hover {
    background-color: #dee2e6;
    color: #212529;
}

.section-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    text-align: center;
    margin-bottom: 3rem;
}
.section-title h2 {
    order: 2;
    font-size: 2.25rem;
    font-weight: 700;
    position: relative;
    z-index: 2;
    margin-bottom: 0;
    padding-bottom: 15px;
}
.section-title h2::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}
.section-title .bg-text {
    order: 1;
    display: inline-block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    background-color: rgba(43, 145, 207, 0.1);
    padding: 0.25rem 1rem;
    border-radius: 50rem;
    white-space: nowrap;
    text-transform: uppercase;
    margin-top: 0;
    margin-bottom: 1rem;
}

/* Resume Box (Equal-Height Grid) */
.resume-box {
    padding: 1.75rem;
    border: 1px solid #e9ecef;
    border-radius: 0.85rem;
    background-color: #fff;
    box-shadow: 0 0.125rem 0.35rem rgba(0,0,0,0.04);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}
.resume-box:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0.5rem 1.5rem rgba(43, 145, 207, 0.12);
    transform: translateY(-4px);
}
.resume-box .badge-year {
    background-color: var(--primary-color);
    color: #fff;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.35rem 0.85rem;
    border-radius: 50rem;
    display: inline-block;
}
.resume-box .badge-type {
    background-color: rgba(43, 145, 207, 0.08);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    border-radius: 50rem;
    border: 1px solid rgba(43, 145, 207, 0.2);
    margin-inline-start: 0.5rem;
    display: inline-block;
}
.resume-box .resume-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-top: 0.85rem;
    margin-bottom: 0.35rem;
}
.resume-box .resume-company {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}
.resume-box .resume-desc {
    color: #6c757d;
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 0;
    flex-grow: 1;
}
.resume-box a {
    transition: color 0.2s ease;
}
.resume-box a:hover {
    color: #1a6da1 !important;
    text-decoration: underline !important;
}

/* Portfolio */
.portfolio-img {
    border-radius: 0.5rem;
    overflow: hidden;
    position: relative;
    background-color: #ffffff;
    height: 125px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.portfolio-img img {
    transition: transform 0.5s ease;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    padding: 1.5rem;
}
.portfolio-img:hover img {
    transform: scale(1.1);
}
.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: all 0.3s ease;
}
.portfolio-img:hover .portfolio-overlay {
    opacity: 1;
}

/* Mobile Toggle Button */
#sidebar-toggle {
    display: none;
    position: fixed;
    top: 18px;
    left: 18px;
    z-index: 1060;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(17, 20, 24, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1.5px solid rgba(43, 145, 207, 0.45);
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
}
html[dir="rtl"] #sidebar-toggle {
    left: auto;
    right: 18px;
}
#sidebar-toggle:hover, #sidebar-toggle:active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
    transform: scale(1.06);
    box-shadow: 0 10px 28px rgba(43, 145, 207, 0.55);
}

/* Sidebar Backdrop */
.sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1045;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}
.sidebar-backdrop.show {
    opacity: 1;
    visibility: visible;
}

/* Mobile Sidebar Close Button */
#sidebar-close {
    background-color: rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    padding: 10px;
    transition: all 0.2s ease;
    cursor: pointer;
    z-index: 5;
}
#sidebar-close:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
}

body.sidebar-open {
    overflow: hidden !important;
}

/* Responsive */
@media (max-width: 991.98px) {
    #sidebar-toggle {
        display: flex;
    }
    #sidebar {
        width: 290px;
        max-width: 85vw;
        z-index: 1050;
        box-shadow: none;
        padding-top: 2.5rem !important;
        padding-bottom: 2.5rem !important;
        transform: translateX(-100%);
        transition: transform 0.35s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.35s ease;
    }
    html[dir="rtl"] #sidebar {
        transform: translateX(100%);
    }
    #sidebar.show {
        transform: translateX(0) !important;
        box-shadow: 0 0 50px rgba(0, 0, 0, 0.85);
    }
    #content {
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
}


/* Contact Cards & Form */
.contact-card {
    transition: all 0.3s ease;
    border: 1px solid #eaeaea !important;
}
.contact-card:hover {
    border-color: var(--primary-color) !important;
}
.btn-contact-submit {
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    background-color: transparent;
    transition: all 0.3s ease;
}
.btn-contact-submit:hover {
    background-color: var(--primary-color) !important;
    color: #fff !important;
}

.input-ltr {
    direction: ltr !important;
    text-align: left !important;
}
.input-ltr::placeholder {
    direction: ltr !important;
    text-align: left !important;
}

/* Personal Info List in About Section */
:root {
    --info-label-width: 90px;
}
html[dir="rtl"] {
    --info-label-width: 135px;
}

.personal-info-list {
    margin-bottom: 1.5rem;
}
.personal-info-list li {
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
    font-size: 1.05rem;
}
.personal-info-list .info-label {
    display: inline-block;
    width: var(--info-label-width);
    min-width: var(--info-label-width);
    flex-shrink: 0;
    color: var(--heading-color);
    font-weight: 700;
    white-space: nowrap;
}
.personal-info-list .info-colon {
    display: inline-block;
    flex-shrink: 0;
    color: #6c757d;
    font-weight: 700;
    margin-inline-end: 1rem;
    user-select: none;
}
.personal-info-list .info-value {
    color: #4c4d4d;
    word-break: break-word;
    font-weight: 500;
    display: inline-block;
    width: fit-content;
}
.personal-info-list a.info-value {
    transition: color 0.2s ease;
}
.personal-info-list a.info-value:hover {
    color: #1a6da1 !important;
    text-decoration: underline !important;
}

/* ===================================================================
   Core Engineering Methodologies & Work Ethic Cards
   (Continuous Ambient Auto-Animations)
   =================================================================== */
.methodology-section-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary-color);
    background-color: rgba(43, 145, 207, 0.08);
    border: 1px solid rgba(43, 145, 207, 0.2);
    padding: 0.35rem 0.9rem;
    border-radius: 50rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    animation: badgePulse 3s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(43, 145, 207, 0);
    }
    50% {
        box-shadow: 0 0 0 4px rgba(43, 145, 207, 0.15);
    }
}

.methodology-card {
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 1rem;
    padding: 1.75rem 1.4rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s ease, border-color 0.4s ease;
    opacity: 1;
}

/* Staggered Ambient Floating Wave (Running Automatically without Hover) */
.methodologies-grid > div:nth-child(1) .methodology-card,
.methodologies-grid .col-md-6:nth-child(1) .methodology-card {
    animation: autoFloatCard 4.8s ease-in-out infinite 0s;
}
.methodologies-grid > div:nth-child(2) .methodology-card,
.methodologies-grid .col-md-6:nth-child(2) .methodology-card {
    animation: autoFloatCard 4.8s ease-in-out infinite 1.2s;
}
.methodologies-grid > div:nth-child(3) .methodology-card,
.methodologies-grid .col-md-6:nth-child(3) .methodology-card {
    animation: autoFloatCard 4.8s ease-in-out infinite 2.4s;
}
.methodologies-grid > div:nth-child(4) .methodology-card,
.methodologies-grid .col-md-6:nth-child(4) .methodology-card {
    animation: autoFloatCard 4.8s ease-in-out infinite 3.6s;
}

@keyframes autoFloatCard {
    0%, 100% {
        transform: translateY(0);
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
        border-color: #e9ecef;
    }
    50% {
        transform: translateY(-8px);
        box-shadow: 0 16px 32px var(--card-glow, rgba(43, 145, 207, 0.16)), 0 2px 6px rgba(0, 0, 0, 0.03);
        border-color: var(--card-accent, rgba(43, 145, 207, 0.35));
    }
}

/* Continuous Light Sheen Reflection across the Cards */
.methodology-card .card-shimmer {
    position: absolute;
    top: 0;
    left: -130%;
    width: 65%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.45),
        rgba(255, 255, 255, 0.8),
        rgba(255, 255, 255, 0.45),
        transparent
    );
    transform: skewX(-25deg);
    pointer-events: none;
    z-index: 2;
}

.methodologies-grid > div:nth-child(1) .card-shimmer,
.methodologies-grid .col-md-6:nth-child(1) .card-shimmer {
    animation: sweepShimmer 5.5s ease-in-out infinite 0.2s;
}
.methodologies-grid > div:nth-child(2) .card-shimmer,
.methodologies-grid .col-md-6:nth-child(2) .card-shimmer {
    animation: sweepShimmer 5.5s ease-in-out infinite 1.5s;
}
.methodologies-grid > div:nth-child(3) .card-shimmer,
.methodologies-grid .col-md-6:nth-child(3) .card-shimmer {
    animation: sweepShimmer 5.5s ease-in-out infinite 2.8s;
}
.methodologies-grid > div:nth-child(4) .card-shimmer,
.methodologies-grid .col-md-6:nth-child(4) .card-shimmer {
    animation: sweepShimmer 5.5s ease-in-out infinite 4.1s;
}

@keyframes sweepShimmer {
    0% {
        left: -130%;
    }
    28%, 100% {
        left: 220%;
    }
}

/* Continuous Moving Electric Beam Top Accent Bar */
.methodology-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(
        90deg, 
        var(--card-accent, #2b91cf) 0%, 
        #38bdf8 30%, 
        #ffffff 50%, 
        #38bdf8 70%, 
        var(--card-accent, #2b91cf) 100%
    );
    background-size: 250% 100%;
    animation: flowBorder 3.5s linear infinite;
    z-index: 3;
}

@keyframes flowBorder {
    0% {
        background-position: 0% 0;
    }
    100% {
        background-position: 250% 0;
    }
}

/* Subtle corner glow background with breathing pulse */
.methodology-card::after {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 130px;
    height: 130px;
    background: radial-gradient(circle, var(--card-glow, rgba(43, 145, 207, 0.12)) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: ambientGlow 4s ease-in-out infinite alternate;
}
html[dir="rtl"] .methodology-card::after {
    right: auto;
    left: -50px;
}

@keyframes ambientGlow {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.4);
        opacity: 0.9;
    }
}

/* Hover Interactivity: Elevates further and pauses ambient float */
.methodology-card:hover {
    transform: translateY(-12px) scale(1.02) !important;
    animation-play-state: paused !important;
    border-color: var(--card-accent, var(--primary-color)) !important;
    box-shadow: 0 20px 42px rgba(43, 145, 207, 0.22), 0 4px 10px rgba(0, 0, 0, 0.05) !important;
    z-index: 10;
}
.methodology-card:hover::before {
    height: 5.5px;
}

/* Icon Badges with Continuous Themed Micro-Animations */
.methodology-icon-wrap {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(43, 145, 207, 0.08);
    border: 1px solid rgba(43, 145, 207, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: var(--card-accent, var(--primary-color));
    position: relative;
    z-index: 1;
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Card 1: SOLID (layer group) - continuous 3D stack pulse */
.methodologies-grid > div:nth-child(1) .methodology-icon-wrap,
.methodologies-grid .col-md-6:nth-child(1) .methodology-icon-wrap {
    animation: iconPulseLayers 4.8s ease-in-out infinite 0s;
}
@keyframes iconPulseLayers {
    0%, 100% {
        transform: scale(1) translateY(0);
        box-shadow: 0 0 0 0 rgba(43, 145, 207, 0);
    }
    50% {
        transform: scale(1.1) translateY(-2.5px);
        box-shadow: 0 8px 18px rgba(43, 145, 207, 0.28);
        background: rgba(43, 145, 207, 0.16);
    }
}

/* Card 2: Security (Shield) - continuous radar security pulse */
.methodologies-grid > div:nth-child(2) .methodology-icon-wrap,
.methodologies-grid .col-md-6:nth-child(2) .methodology-icon-wrap {
    animation: iconPulseShield 4.8s ease-in-out infinite 1.2s;
}
@keyframes iconPulseShield {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(5, 150, 105, 0);
    }
    50% {
        transform: scale(1.12);
        box-shadow: 0 8px 20px rgba(5, 150, 105, 0.3);
        background: rgba(5, 150, 105, 0.16);
    }
}

/* Card 3: Speed (Lightning) - periodic electric spark jump */
.methodologies-grid > div:nth-child(3) .methodology-icon-wrap,
.methodologies-grid .col-md-6:nth-child(3) .methodology-icon-wrap {
    animation: iconPulseSpeed 4.8s ease-in-out infinite 2.4s;
}
@keyframes iconPulseSpeed {
    0%, 82%, 100% {
        transform: scale(1) rotate(0deg);
        box-shadow: 0 0 0 0 rgba(217, 119, 6, 0);
    }
    88% {
        transform: scale(1.18) rotate(-9deg);
        box-shadow: 0 8px 22px rgba(217, 119, 6, 0.4);
        background: rgba(217, 119, 6, 0.2);
    }
    94% {
        transform: scale(1.18) rotate(9deg);
        box-shadow: 0 8px 22px rgba(217, 119, 6, 0.4);
        background: rgba(217, 119, 6, 0.2);
    }
}

/* Card 4: Client Success (Handshake) - warm glowing pulse */
.methodologies-grid > div:nth-child(4) .methodology-icon-wrap,
.methodologies-grid .col-md-6:nth-child(4) .methodology-icon-wrap {
    animation: iconPulseClient 4.8s ease-in-out infinite 3.6s;
}
@keyframes iconPulseClient {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
    }
    50% {
        transform: scale(1.1);
        box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
        background: rgba(99, 102, 241, 0.16);
    }
}

.methodology-card:hover .methodology-icon-wrap {
    transform: scale(1.18) rotate(6deg) !important;
    background: linear-gradient(135deg, var(--card-accent, var(--primary-color)), #0d426e) !important;
    color: #ffffff !important;
    box-shadow: 0 10px 22px rgba(43, 145, 207, 0.4) !important;
    border-color: transparent !important;
}

.methodology-pill {
    font-size: 0.75rem;
    font-weight: 700;
    color: #475569;
    background-color: #f1f5f9;
    border: 1px solid #e2e8f0;
    padding: 0.25rem 0.65rem;
    border-radius: 50rem;
    white-space: nowrap;
    transition: all 0.25s ease;
}

.methodology-card:hover .methodology-pill {
    background-color: rgba(43, 145, 207, 0.1);
    color: var(--primary-color);
    border-color: rgba(43, 145, 207, 0.3);
}

.methodology-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--heading-color);
    margin-bottom: 0.65rem;
    line-height: 1.35;
    transition: color 0.2s ease;
}

.methodology-card:hover .methodology-title {
    color: var(--primary-color);
}

.methodology-desc {
    color: #64748b;
    font-size: 0.92rem;
    line-height: 1.68;
    margin-bottom: 0;
    flex-grow: 1;
}