/* ===================================================
   MANOJ THELLA PORTFOLIO — style.css
   Dark / Light theme via [data-theme] on <html>
   =================================================== */

/* ===== CSS VARIABLES — DARK (default) ===== */
:root {
    --bg-primary:       #080c18;
    --bg-secondary:     #0a0f1e;
    --glass:            rgba(255, 255, 255, 0.04);
    --glass-border:     rgba(0, 150, 255, 0.14);
    --glass-hover:      rgba(0, 150, 255, 0.08);
    --blue:             #0066ff;
    --blue-light:       #00a3ff;
    --blue-glow:        rgba(0, 102, 255, 0.25);
    --cyan:             #00eeff;
    --red:              #ff004f;

    /* Text */
    --text-main:        #ffffff;
    --text-body:        rgba(255, 255, 255, 0.75);
    --text-muted:       rgba(255, 255, 255, 0.5);
    --text-skill:       rgba(255, 255, 255, 0.82);
    --text-wf:          rgba(255, 255, 255, 0.85);

    /* Surfaces */
    --border-subtle:    rgba(255, 255, 255, 0.07);
    --nav-bg:           rgba(8, 12, 24, 0.82);
    --nav-scrolled:     rgba(8, 12, 24, 0.97);
    --nav-mobile:       rgba(8, 12, 24, 0.98);
    --input-bg:         rgba(255, 255, 255, 0.04);
    --input-border:     rgba(0, 150, 255, 0.14);
    --input-focus:      rgba(0, 100, 255, 0.05);
    --copyright-bg:     rgba(0, 0, 0, 0.3);
    --timeline-dot-bg:  #0a0f1e;
    --hero-grid:        rgba(0, 120, 255, 0.04);
    --shadow-card:      0 4px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow:      0 0 24px rgba(0, 102, 255, 0.3);

    /* Misc */
    --transition:       0.3s ease;
    --radius:           14px;
    --radius-sm:        8px;
}

/* ===== CSS VARIABLES — LIGHT ===== */
[data-theme="light"] {
    --bg-primary:       #f0f4ff;
    --bg-secondary:     #e4eaf8;
    --glass:            rgba(255, 255, 255, 0.72);
    --glass-border:     rgba(0, 90, 210, 0.16);
    --glass-hover:      rgba(0, 90, 210, 0.06);

    --text-main:        #0a0f24;
    --text-body:        rgba(10, 15, 36, 0.72);
    --text-muted:       rgba(10, 15, 36, 0.5);
    --text-skill:       rgba(10, 15, 36, 0.8);
    --text-wf:          rgba(10, 15, 36, 0.82);

    --border-subtle:    rgba(0, 0, 0, 0.08);
    --nav-bg:           rgba(240, 244, 255, 0.88);
    --nav-scrolled:     rgba(240, 244, 255, 0.98);
    --nav-mobile:       rgba(240, 244, 255, 0.99);
    --input-bg:         rgba(255, 255, 255, 0.85);
    --input-border:     rgba(0, 90, 210, 0.18);
    --input-focus:      rgba(0, 90, 210, 0.04);
    --copyright-bg:     rgba(0, 0, 60, 0.05);
    --timeline-dot-bg:  #e4eaf8;
    --hero-grid:        rgba(0, 80, 200, 0.04);
    --shadow-card:      0 4px 24px rgba(0, 50, 160, 0.1);
    --shadow-glow:      0 0 24px rgba(0, 90, 210, 0.2);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 72px;
}

body {
    background: var(--bg-primary);
    color: var(--text-main);
    font-family: 'Poppins', 'Segoe UI', sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
    transition: background 0.35s ease, color 0.35s ease;
}

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

p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-body);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

/* ===== FADE-IN SCROLL ANIMATION ===== */
.fade-in {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== SECTION TITLES ===== */
.sub-title-center {
    text-align: center;
    font-size: 42px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 60px;
}
.sub-title-center span { color: var(--blue-light); }
.sub-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--blue-light);
    margin-bottom: 24px;
}
.section-desc {
    text-align: center;
    font-size: 17px;
    color: var(--text-muted);
    margin-top: -40px;
    margin-bottom: 56px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== NAVBAR ===== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-subtle);
    transition: box-shadow var(--transition), background var(--transition);
}
#navbar.nav-scrolled {
    background: var(--nav-scrolled);
    box-shadow: 0 2px 24px rgba(0,0,0,0.15);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 12px;
}
.logo {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--blue);
    flex-shrink: 0;
}
#sidemenu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 4px;
    flex: 1;
    justify-content: center;
}
#sidemenu li a {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 6px;
    transition: color var(--transition), background var(--transition);
    white-space: nowrap;
}
#sidemenu li a:hover {
    color: var(--blue-light);
    background: rgba(0, 150, 255, 0.08);
}
#sidemenu li a.active {
    color: var(--blue-light);
    background: rgba(0, 150, 255, 0.12);
}

/* Theme toggle button */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-main);
    font-size: 15px;
    cursor: pointer;
    flex-shrink: 0;
    transition: background var(--transition), border-color var(--transition), transform var(--transition), color var(--transition);
}
.theme-toggle:hover {
    background: rgba(0, 150, 255, 0.12);
    border-color: var(--blue-light);
    transform: rotate(18deg) scale(1.05);
    color: var(--blue-light);
}

/* Hamburger icon */
.nav-container .fa-bars {
    display: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-main);
    flex-shrink: 0;
}

/* Mobile-menu close (X) — hidden on desktop, only shown inside the slide-out menu on mobile */
#sidemenu .fa-times {
    display: none;
}

/* ===== HERO ===== */
#header {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 68px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 80, 200, 0.18) 0%, transparent 70%),
        radial-gradient(ellipse 50% 50% at 80% 70%, rgba(0, 200, 255, 0.07) 0%, transparent 60%),
        var(--bg-primary);
    transition: background 0.35s ease;
    z-index: 0;
}
.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--hero-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--hero-grid) 1px, transparent 1px);
    background-size: 60px 60px;
}
[data-theme="light"] .hero-bg {
    background:
        radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 80, 200, 0.08) 0%, transparent 70%),
        radial-gradient(ellipse 50% 50% at 80% 70%, rgba(0, 160, 255, 0.05) 0%, transparent 60%),
        var(--bg-primary);
}
#header .container { position: relative; z-index: 1; }
.header-text { max-width: 720px; padding: 60px 0; }
.hero-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--blue-light);
    background: rgba(0, 150, 255, 0.1);
    border: 1px solid rgba(0, 150, 255, 0.2);
    border-radius: 50px;
    padding: 6px 18px;
    margin-bottom: 28px;
}
.header-text h1 {
    font-size: clamp(40px, 6vw, 70px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
    color: var(--text-main);
}
.header-text h1 span {
    background: linear-gradient(135deg, var(--blue-light) 0%, var(--cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-tagline {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 44px;
    max-width: 520px;
    font-weight: 400;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
    padding: 14px 36px;
    background: var(--blue);
    color: #fff;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn-primary:hover {
    background: var(--blue-light);
    box-shadow: 0 6px 24px var(--blue-glow);
    transform: translateY(-2px);
}
.btn-outline {
    padding: 14px 36px;
    border: 1.5px solid rgba(0, 150, 255, 0.4);
    color: var(--blue-light);
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.btn-outline:hover {
    background: rgba(0, 150, 255, 0.08);
    border-color: var(--blue-light);
    transform: translateY(-2px);
}

/* Scroll-down cue */
.scroll-cue {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 1;
    animation: cueFloat 2.2s ease-in-out infinite;
}
.scroll-cue-text {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
}
.scroll-cue-mouse {
    width: 22px;
    height: 36px;
    border: 2px solid var(--blue-light);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
    opacity: 0.7;
}
.scroll-cue-dot {
    width: 4px;
    height: 8px;
    background: var(--blue-light);
    border-radius: 2px;
    animation: cueDot 1.6s ease-in-out infinite;
}
@keyframes cueDot {
    0%   { opacity: 0; transform: translateY(-4px); }
    40%  { opacity: 1; }
    80%  { opacity: 0; transform: translateY(8px); }
    100% { opacity: 0; }
}
@keyframes cueFloat {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%      { transform: translateX(-50%) translateY(-6px); }
}
@media screen and (max-width: 600px) {
    .scroll-cue { display: none; }
}

/* ===== ABOUT ===== */
#about {
    padding: 100px 0;
    background: var(--bg-secondary);
    transition: background 0.35s ease;
}
.row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 60px;
    flex-wrap: wrap;
}
.about-col-1 { flex: 0 0 300px; }
.about-col-1 img {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition), box-shadow var(--transition);
}
.about-col-1 img:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 40px rgba(0,100,255,0.2);
}
.about-col-2 { flex: 1; min-width: 280px; }
.about-col-2 > p { margin-bottom: 32px; }

/* Tabs */
.tab-titles {
    display: flex;
    gap: 0;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--border-subtle);
}
.tab-links {
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    color: var(--text-muted);
    padding: 10px 24px;
    position: relative;
    transition: color var(--transition);
    user-select: none;
}
.tab-links::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue-light);
    transition: width var(--transition);
}
.tab-links.active-link { color: var(--blue-light); }
.tab-links.active-link::after { width: 100%; }
.tab-contents { display: none; }
.tab-contents.active-tab {
    display: block;
    animation: fadeUp 0.4s ease;
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Skills */
.skills-category { margin-bottom: 20px; }
.skills-cat-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.skills-list { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; }
.skill-item {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    padding: 5px 14px;
    font-size: 13px;
    color: var(--text-skill);
    transition: background var(--transition), border-color var(--transition), color var(--transition);
    cursor: default;
}
.skill-item:hover {
    background: rgba(0, 150, 255, 0.1);
    border-color: var(--blue-light);
    color: var(--blue-light);
}

/* Exp / Edu list */
.exp-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.exp-list li {
    padding: 18px 20px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    transition: background var(--transition), border-color var(--transition);
}
.exp-list li:hover {
    background: var(--glass-hover);
    border-color: rgba(0, 150, 255, 0.26);
}
.exp-role  { display: block; font-size: 15px; font-weight: 700; color: var(--text-main); margin-bottom: 3px; }
.exp-company { display: block; font-size: 13px; font-weight: 600; color: var(--blue-light); margin-bottom: 5px; }
.exp-desc  { display: block; font-size: 13px; color: var(--text-muted); }

/* ===== HIGHLIGHTS ===== */
#highlights {
    padding: 100px 0;
    background: var(--bg-primary);
    transition: background 0.35s ease;
}
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}
.highlight-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 48px 32px;
    text-align: center;
    transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.highlight-card:hover {
    background: rgba(0, 150, 255, 0.07);
    border-color: rgba(0, 150, 255, 0.35);
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}
.highlight-number {
    font-size: 52px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--blue-light), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 12px;
}
.highlight-label { font-size: 14px; font-weight: 500; color: var(--text-muted); }

/* ===== CAREER TIMELINE ===== */
#experience {
    padding: 100px 0;
    background: var(--bg-secondary);
    transition: background 0.35s ease;
}
.timeline { position: relative; max-width: 780px; margin: 0 auto; }
.timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--blue), transparent);
}
.timeline-item { display: flex; align-items: flex-start; gap: 28px; padding-bottom: 36px; }
.timeline-dot {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--timeline-dot-bg);
    border: 2px solid var(--blue);
    box-shadow: 0 0 12px var(--blue-glow);
    z-index: 1;
    transition: background var(--transition), box-shadow var(--transition);
}
.timeline-item:hover .timeline-dot {
    background: var(--blue);
    box-shadow: 0 0 20px rgba(0,102,255,0.5);
}
.timeline-future .timeline-dot {
    border-color: var(--cyan);
    box-shadow: 0 0 12px rgba(0,238,255,0.3);
}
.timeline-content {
    flex: 1;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 20px 24px;
    transition: background var(--transition), border-color var(--transition);
}
.timeline-item:hover .timeline-content {
    background: var(--glass-hover);
    border-color: rgba(0, 150, 255, 0.25);
}
.timeline-step {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--blue-light);
    margin-bottom: 5px;
}
.timeline-content h3 { font-size: 17px; font-weight: 700; color: var(--text-main); margin-bottom: 5px; }
.timeline-content p  { font-size: 14px; color: var(--text-muted); margin: 0; }

/* ===== METHODOLOGIES ===== */
#workflows {
    padding: 100px 0;
    background: var(--bg-primary);
    transition: background 0.35s ease;
}
.workflow-grid { display: flex; flex-direction: column; gap: 24px; }
.workflow-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 36px 40px;
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.workflow-card:hover {
    background: rgba(0, 150, 255, 0.05);
    border-color: rgba(0, 150, 255, 0.25);
    box-shadow: 0 4px 32px rgba(0, 100, 255, 0.12);
}
.workflow-icon { font-size: 28px; color: var(--blue-light); margin-bottom: 14px; }
.workflow-card h3 { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 20px; }
.workflow-steps { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.wf-step {
    background: rgba(0, 120, 255, 0.1);
    border: 1px solid rgba(0, 120, 255, 0.2);
    border-radius: 50px;
    padding: 5px 14px;
    font-size: 13px;
    color: var(--text-wf);
    white-space: nowrap;
}
.wf-arrow { font-size: 10px; color: var(--blue-light); opacity: 0.6; }

/* ===== YOUTUBE GROWTH ===== */
#youtube {
    padding: 100px 0;
    background: var(--bg-secondary);
    transition: background 0.35s ease;
}

/* Featured / main channel card */
.channel-featured {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 28px;
    background: var(--glass);
    border: 1px solid rgba(255, 60, 60, 0.22);
    border-radius: var(--radius);
    padding: 36px 44px;
    margin-bottom: 36px;
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.channel-featured:hover {
    background: rgba(255, 50, 50, 0.05);
    border-color: rgba(255, 60, 60, 0.4);
    box-shadow: 0 4px 32px rgba(255, 40, 40, 0.1);
}
.channel-featured-left {
    display: flex;
    align-items: center;
    gap: 22px;
}
.channel-featured-icon {
    font-size: 52px;
    color: #ff3333;
    line-height: 1;
    flex-shrink: 0;
}
.channel-featured-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #ff4444;
    background: rgba(255, 60, 60, 0.1);
    border: 1px solid rgba(255, 60, 60, 0.2);
    border-radius: 50px;
    padding: 3px 12px;
    margin-bottom: 6px;
}
.channel-featured-name {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.1;
    margin-bottom: 2px;
}
.channel-featured-handle {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
}
.channel-featured-right {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}
.channel-stat {
    text-align: center;
}
.stat-num {
    display: block;
    font-size: 22px;
    font-weight: 800;
    background: linear-gradient(135deg, #ff6666, #ff3333);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 4px;
}
.stat-lbl {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}
.btn-subscribe {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 26px;
    background: #ff3333;
    color: #fff;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn-subscribe:hover {
    background: #ff5555;
    box-shadow: 0 4px 20px rgba(255, 40, 40, 0.35);
    transform: translateY(-2px);
}

.youtube-channels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}
.channel-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 40px 28px;
    text-align: center;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.channel-card:hover {
    background: rgba(255, 50, 50, 0.05);
    border-color: rgba(255, 60, 60, 0.22);
    transform: translateY(-5px);
}
.channel-icon { font-size: 36px; color: #ff4444; margin-bottom: 16px; }
.channel-card h3 { font-size: 16px; font-weight: 700; color: var(--text-main); margin-bottom: 8px; }
.channel-card p  { font-size: 13px; color: var(--text-muted); margin: 0 0 16px; }
.channel-link-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: #ff5555;
    opacity: 0.75;
    transition: gap var(--transition), opacity var(--transition);
}
.channel-card:hover .channel-link-cta {
    opacity: 1;
    gap: 9px;
}

/* ===== PROJECTS ===== */
.projects-channel-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 16px 24px;
    margin-bottom: 36px;
}
.pcb-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
}
.pcb-label i {
    color: #ff4444;
    margin-right: 8px;
}
.pcb-label strong {
    color: var(--text-main);
}
.pcb-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    font-weight: 600;
    color: var(--blue-light);
    transition: color var(--transition), gap var(--transition);
}
.pcb-link:hover {
    color: var(--cyan);
    gap: 10px;
}

#projects {
    padding: 100px 0;
    background: var(--bg-primary);
    transition: background 0.35s ease;
}
.services-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}
.service-item {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 12px;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.service-item:hover {
    border-color: rgba(0, 150, 255, 0.3);
    box-shadow: 0 0 32px rgba(0, 100, 255, 0.15);
    transform: translateY(-4px);
}
.service-item iframe {
    width: 100%;
    aspect-ratio: 16/9;
    height: auto;
    border-radius: 8px;
    display: block;
}

/* ===== SERVICES ===== */
#portfolio {
    padding: 100px 0;
    background: var(--bg-secondary);
    transition: background 0.35s ease;
}
.work-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.work {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--glass-border);
    cursor: pointer;
}
.work img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease, filter 0.5s ease;
    filter: brightness(0.7);
}
.work:hover img {
    transform: scale(1.08);
    filter: brightness(0.4);
}
.layer {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,20,0.9) 0%, rgba(0,40,120,0.5) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 28px;
    opacity: 0;
    transition: opacity var(--transition);
}
.work:hover .layer { opacity: 1; }
.layer h3 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.layer p  { font-size: 14px; color: rgba(255,255,255,0.78); margin-bottom: 16px; line-height: 1.5; }
.layer a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--blue);
    border-radius: 50%;
    color: #fff;
    font-size: 14px;
    transition: background var(--transition), transform var(--transition);
}
.layer a:hover { background: var(--blue-light); transform: scale(1.1); }

/* ===== AWARDS ===== */
#awards {
    padding: 100px 0;
    background: var(--bg-primary);
    transition: background 0.35s ease;
}
.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}
.award-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 40px 28px;
    text-align: center;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.award-card:hover {
    background: rgba(0, 150, 255, 0.06);
    border-color: rgba(0, 150, 255, 0.3);
    transform: translateY(-5px);
}
.award-icon { font-size: 32px; color: var(--blue-light); margin-bottom: 18px; }
.award-card h3 { font-size: 17px; font-weight: 700; color: var(--text-main); margin-bottom: 10px; }
.award-card p  { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.6; }

/* ===== TESTIMONIALS ===== */
#testimonials {
    padding: 100px 0;
    background: var(--bg-secondary);
    transition: background 0.35s ease;
}
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.testimonial-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 36px 32px;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.testimonial-card:hover {
    background: rgba(0, 150, 255, 0.05);
    border-color: rgba(0, 150, 255, 0.25);
    transform: translateY(-4px);
}
.testimonial-quote { font-size: 24px; color: var(--blue-light); opacity: 0.5; margin-bottom: 16px; }
.testimonial-text {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 28px;
    font-style: italic;
}
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(0, 100, 255, 0.12);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--blue-light);
    flex-shrink: 0;
}
.author-name  { display: block; font-size: 14px; font-weight: 700; color: var(--text-main); }
.author-role  { display: block; font-size: 12px; color: var(--blue-light); margin-top: 2px; }

/* ===== CONTACT ===== */
#contact {
    padding: 100px 0 0;
    background: var(--bg-primary);
    transition: background 0.35s ease;
}
.contact-left { flex: 0 0 35%; min-width: 260px; }
.contact-right { flex: 1; min-width: 260px; }
.contact-left p {
    margin-top: 24px;
    font-size: 15px;
    color: var(--text-body);
    display: flex;
    align-items: center;
    gap: 12px;
}
.contact-left p i { color: var(--blue-light); font-size: 18px; }
.social-icons { margin-top: 28px; display: flex; gap: 14px; }
.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    font-size: 18px;
    color: var(--text-muted);
    transition: background var(--transition), color var(--transition), transform var(--transition), border-color var(--transition);
}
.social-icons a:hover {
    background: rgba(255, 100, 100, 0.1);
    border-color: rgba(255, 100, 100, 0.3);
    color: #ff6060;
    transform: translateY(-4px);
}
.btn, .btn.btn2 {
    display: inline-block;
    margin-top: 28px;
    padding: 12px 32px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    background: var(--blue);
    color: #fff;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn:hover, .btn.btn2:hover {
    background: var(--blue-light);
    box-shadow: 0 4px 20px var(--blue-glow);
    transform: translateY(-2px);
}
form input,
form textarea {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    padding: 14px 18px;
    margin-bottom: 16px;
    color: var(--text-main);
    font-size: 15px;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition), background var(--transition);
}
form input:focus,
form textarea:focus {
    border-color: rgba(0, 150, 255, 0.4);
    background: var(--input-focus);
}
form input::placeholder,
form textarea::placeholder { color: var(--text-muted); }
form .btn2 {
    width: 100%;
    padding: 14px;
    font-size: 15px;
    background: var(--blue);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition);
    margin-top: 0;
}
form .btn2:hover {
    background: var(--blue-light);
    box-shadow: 0 4px 20px var(--blue-glow);
}
#msg { display: block; margin-top: 12px; font-size: 14px; color: #4caf50; }
.copyright {
    margin-top: 80px;
    padding: 24px 0;
    background: var(--copyright-bg);
    border-top: 1px solid var(--border-subtle);
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    transition: background 0.35s ease;
}
.copyright i { color: var(--red); }

/* ===== SCROLL TO TOP ===== */
#scrollTop {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 46px;
    height: 46px;
    background: var(--blue);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, background var(--transition), transform var(--transition), box-shadow var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 80, 200, 0.4);
}
#scrollTop:hover {
    background: var(--blue-light);
    transform: translateY(-3px);
    box-shadow: 0 6px 24px var(--blue-glow);
}

/* ===== RESPONSIVE ===== */
@media screen and (max-width: 960px) {
    .nav-container .fa-bars { display: block; }
    #sidemenu {
        position: fixed;
        top: 0;
        right: -270px;
        width: 260px;
        height: 100vh;
        background: var(--nav-mobile);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-left: 1px solid var(--glass-border);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 76px 28px 32px;
        gap: 2px;
        transition: right 0.4s ease, background 0.35s ease;
        z-index: 1100;
    }
    #sidemenu li { width: 100%; }
    #sidemenu li a {
        display: block;
        padding: 11px 14px;
        font-size: 15px;
        border-radius: 8px;
    }
    #sidemenu .fa-times {
        display: block;
        position: absolute;
        top: 22px;
        left: 22px;
        font-size: 22px;
        cursor: pointer;
        color: var(--text-muted);
    }
    .row { flex-direction: column; }
    .about-col-1 { flex: none; width: 100%; max-width: 320px; }
    .contact-left, .contact-right { flex: none; width: 100%; }
    .timeline::before { left: 20px; }
    .timeline-dot { width: 42px; height: 42px; }
}

@media screen and (max-width: 600px) {
    .header-text h1 { font-size: 36px; }
    .hero-tagline    { font-size: 15px; }
    .sub-title-center { font-size: 30px; margin-bottom: 44px; }
    .sub-title        { font-size: 30px; }
    .highlight-number { font-size: 40px; }
    .workflow-card    { padding: 28px 22px; }
    #scrollTop { bottom: 20px; right: 20px; width: 40px; height: 40px; font-size: 14px; }
}
