/* =========================================================
   BD IT Hub — Design System (Modern 2025 · Vibrant Edition)
   ========================================================= */

/* ── Base ── */
html { scroll-behavior: smooth; }
body { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

/* ── Custom scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: linear-gradient(to bottom, #2563eb, #7c3aed); border-radius: 999px; }

/* ── Text selection ── */
::selection { background: rgba(124, 58, 237, 0.2); color: #1e1b4b; }

/* ==========================================================
   COLOR TOKENS
   ========================================================== */
:root {
    --c-blue:   #2563eb;
    --c-violet: #7c3aed;
    --c-cyan:   #06b6d4;
    --c-pink:   #ec4899;
    --c-grad:   linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --c-grad2:  linear-gradient(135deg, #06b6d4 0%, #2563eb 100%);
    --c-grad3:  linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --c-shadow-blue:   0 4px 20px rgba(37,99,235,0.4);
    --c-shadow-violet: 0 4px 20px rgba(124,58,237,0.4);
}

/* ==========================================================
   ANIMATED GRADIENTS
   ========================================================== */
@keyframes gradientShift {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Animated hero background */
.hero-gradient {
    background: linear-gradient(-45deg, #0f172a, #1e1b4b, #1d4ed8, #6d28d9, #0c4a6e, #0f172a);
    background-size: 500% 500%;
    animation: gradientShift 14s ease infinite;
}

/* Animated gradient border */
@keyframes gradBorderSpin {
    to { background-position: 200% center; }
}

/* ==========================================================
   GLASSMORPHISM
   ========================================================== */
.glass {
    background: rgba(255,255,255,0.10);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255,255,255,0.18);
}
.glass-white {
    background: rgba(255,255,255,0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.7);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
.glass-dark {
    background: rgba(15,23,42,0.65);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.08);
}

/* ==========================================================
   NAVBAR
   ========================================================== */
#site-header {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: box-shadow 0.3s ease, background 0.3s ease;
}
#site-header.scrolled {
    box-shadow: 0 4px 30px rgba(37,99,235,0.1);
    background: rgba(255,255,255,0.98);
}

/* ==========================================================
   BUTTONS
   ========================================================== */

/* Primary — Blue→Violet gradient */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    background-size: 200% 200%;
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 0.75rem 1.75rem;
    border-radius: 0.75rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    box-shadow: 0 4px 15px rgba(37,99,235,0.45), inset 0 1px 0 rgba(255,255,255,0.15);
    position: relative;
    overflow: hidden;
}
.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.18), transparent);
    opacity: 0;
    transition: opacity 0.25s;
}
.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover {
    background-position: right center;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(124,58,237,0.5), 0 4px 15px rgba(37,99,235,0.3);
}
.btn-primary:active { transform: translateY(0); }

/* Outline */
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    color: #2563eb;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.9375rem;
    padding: calc(0.75rem - 2px) calc(1.75rem - 2px);
    border-radius: 0.75rem;
    border: 2px solid transparent;
    background-image: linear-gradient(white, white),
                      linear-gradient(135deg, #2563eb, #7c3aed);
    background-origin: border-box;
    background-clip: padding-box, border-box;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
.btn-outline:hover {
    background-image: linear-gradient(135deg, #2563eb, #7c3aed),
                      linear-gradient(135deg, #2563eb, #7c3aed);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(124,58,237,0.4);
}

/* White (on dark backgrounds) */
.btn-white {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.95);
    color: #2563eb;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 0.9375rem;
    padding: 0.75rem 1.75rem;
    border-radius: 0.75rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15), inset 0 1px 0 rgba(255,255,255,1);
}
.btn-white:hover {
    background: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.2);
}

/* White outline (on dark backgrounds) */
.btn-white-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.08);
    color: #ffffff;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.9375rem;
    padding: calc(0.75rem - 1.5px) calc(1.75rem - 1.5px);
    border-radius: 0.75rem;
    border: 1.5px solid rgba(255,255,255,0.45);
    backdrop-filter: blur(8px);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
.btn-white-outline:hover {
    background: rgba(255,255,255,0.18);
    border-color: rgba(255,255,255,0.85);
    transform: translateY(-2px);
}

/* ==========================================================
   SECTION HELPERS
   ========================================================== */
.section-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: transparent;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-color: #eff6ff;
    /* Re-render as pill with gradient text */
    padding: 0.35rem 1rem;
    border-radius: 999px;
    margin-bottom: 1rem;
    position: relative;
}
/* Pill background + gradient border */
.section-eyebrow {
    background:
        linear-gradient(white, white) padding-box,
        linear-gradient(135deg, #2563eb, #7c3aed) border-box;
    border: 1.5px solid transparent;
    color: #2563eb;
    -webkit-text-fill-color: #2563eb;
}

.section-divider {
    width: 3rem;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #7c3aed, #06b6d4);
    border-radius: 999px;
    margin: 1rem 0 1.5rem;
}

/* ==========================================================
   GRADIENT TEXT
   ========================================================== */
.gradient-text {
    background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.gradient-text-warm {
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.gradient-text-violet {
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================
   CARDS
   ========================================================== */
.card {
    background: #ffffff;
    border-radius: 1.25rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
    transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
}
.card:hover {
    box-shadow: 0 20px 60px rgba(37,99,235,0.12), 0 8px 20px rgba(124,58,237,0.08);
    transform: translateY(-6px);
    border-color: rgba(124,58,237,0.15);
}
/* Gradient top accent bar on hover */
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #7c3aed, #06b6d4);
    opacity: 0;
    transition: opacity 0.3s;
}
.card:hover::before { opacity: 1; }

/* Floating card animation */
.card-float {
    animation: float 4s ease-in-out infinite;
}
@keyframes float {
    0%,100% { transform: translateY(0); }
    50%      { transform: translateY(-8px); }
}

/* ==========================================================
   PAGE HERO — Immersive dark hero with animated orbs & glow
   ========================================================== */
.page-hero {
    background: linear-gradient(-45deg, #020617, #0c0a2a, #0e1754, #1e1b4b, #0c4a6e);
    background-size: 400% 400%;
    animation: gradientShift 14s ease infinite;
    padding: 10rem 0 7rem;
    position: relative;
    overflow: hidden;
}

/* Grid pattern (faded at edges) */
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 80%);
}

/* Gradient accent line at bottom */
.page-hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent 5%, #2563eb 30%, #7c3aed 50%, #2563eb 70%, transparent 95%);
    opacity: 0.5;
}

/* ---- Floating animated orbs ---- */
.hero-orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(70px);
    animation: heroFloat 8s ease-in-out infinite alternate;
}
.hero-orb-1 {
    width: 450px; height: 450px;
    top: -15%; right: -5%;
    background: radial-gradient(circle, rgba(37,99,235,0.45), transparent 70%);
}
.hero-orb-2 {
    width: 350px; height: 350px;
    bottom: -20%; left: -5%;
    background: radial-gradient(circle, rgba(124,58,237,0.4), transparent 70%);
    animation-delay: -3s;
    animation-duration: 10s;
}
.hero-orb-3 {
    width: 200px; height: 200px;
    top: 30%; left: 40%;
    background: radial-gradient(circle, rgba(6,182,212,0.25), transparent 70%);
    animation-delay: -5s;
    animation-duration: 6s;
}
@keyframes heroFloat {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, -20px) scale(1.08); }
}

/* ---- Slowly rotating rings ---- */
.hero-ring {
    position: absolute;
    top: 50%; left: 50%;
    translate: -50% -50%;
    border-radius: 50%;
    pointer-events: none;
    animation: heroRingSpin 40s linear infinite;
}
.hero-ring-lg {
    width: 650px; height: 650px;
    border: 1px solid rgba(255,255,255,0.04);
    background: radial-gradient(circle, transparent 68%, rgba(37,99,235,0.06) 100%);
}
.hero-ring-sm {
    width: 380px; height: 380px;
    border: 1px dashed rgba(255,255,255,0.07);
    animation-direction: reverse;
    animation-duration: 30s;
}
@keyframes heroRingSpin {
    to { rotate: 360deg; }
}

/* ---- Heading glow backdrop ---- */
.hero-heading-glow {
    position: absolute;
    top: 50%; left: 50%;
    translate: -50% -50%;
    width: 500px; height: 120px;
    background: radial-gradient(ellipse, rgba(37,99,235,0.2) 0%, rgba(124,58,237,0.12) 40%, transparent 70%);
    filter: blur(40px);
    pointer-events: none;
}

/* ---- Glass breadcrumb pill ---- */
.page-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 9999px;
    padding: 0.45rem 1.4rem;
    font-size: 0.875rem;
    margin-bottom: 2.5rem;
    box-shadow: 0 0 20px rgba(37,99,235,0.08);
}
.page-breadcrumb a {
    color: rgba(148,163,184,1);
    transition: color 0.2s;
}
.page-breadcrumb a:hover { color: #fff; }
.page-breadcrumb .current { color: rgba(255,255,255,0.95); font-weight: 500; }

/* ==========================================================
   GLOW
   ========================================================== */
.glow-blue {
    box-shadow: 0 0 50px rgba(37,99,235,0.3), 0 0 100px rgba(37,99,235,0.1);
}
.glow-violet {
    box-shadow: 0 0 50px rgba(124,58,237,0.3), 0 0 100px rgba(124,58,237,0.1);
}

/* ==========================================================
   ANIMATED BLOBS
   ========================================================== */
.blob {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    animation: morphBlob 9s ease-in-out infinite;
    filter: blur(45px);
    pointer-events: none;
}
@keyframes morphBlob {
    0%   { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
    50%  { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
    100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
}

/* ==========================================================
   STARS
   ========================================================== */
.stars {
    display: flex;
    gap: 0.1rem;
    color: #f59e0b;
    font-size: 0.9375rem;
}

/* ==========================================================
   SCROLL REVEAL
   ========================================================== */
[data-fade] {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
[data-fade].visible { opacity: 1; transform: translateY(0); }

[data-fade-left] {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-fade-left].visible { opacity: 1; transform: translateX(0); }

[data-fade-right] {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-fade-right].visible { opacity: 1; transform: translateX(0); }

[data-fade-scale] {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.34,1.56,0.64,1);
}
[data-fade-scale].visible { opacity: 1; transform: scale(1); }

/* Stagger delays */
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="200"] { transition-delay: 0.2s; }
[data-delay="300"] { transition-delay: 0.3s; }
[data-delay="400"] { transition-delay: 0.4s; }
[data-delay="500"] { transition-delay: 0.5s; }
[data-delay="600"] { transition-delay: 0.6s; }

/* ==========================================================
   COUNTER
   ========================================================== */
.counter-num {
    display: inline-block;
    transition: all 0.1s;
}

/* ==========================================================
   STEP NUMBER (process)
   ========================================================== */
.step-num {
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 50%;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.125rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 6px 20px rgba(124,58,237,0.45);
    position: relative;
}
.step-num::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px dashed rgba(124,58,237,0.3);
    animation: spin 12s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ==========================================================
   FILTER TABS
   ========================================================== */
.filter-tab {
    padding: 0.5rem 1.25rem;
    border-radius: 0.625rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
    border: 1.5px solid transparent;
    color: #475569;
    background: transparent;
}
.filter-tab:hover {
    background:
        linear-gradient(white, white) padding-box,
        linear-gradient(135deg, #2563eb, #7c3aed) border-box;
    color: #2563eb;
}
.filter-tab.active {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(124,58,237,0.4);
}

/* ==========================================================
   BADGE
   ========================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ==========================================================
   GRADIENT BADGE (navbar CTA)
   ========================================================== */
.badge-gradient {
    background: linear-gradient(135deg, rgba(37,99,235,0.15), rgba(124,58,237,0.15));
    border: 1px solid rgba(124,58,237,0.25);
    color: #7c3aed;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ==========================================================
   SHINE SWEEP
   ========================================================== */
.shine {
    position: relative;
    overflow: hidden;
}
.shine::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -75%;
    width: 50%;
    height: 200%;
    background: linear-gradient(to right, transparent 0%, rgba(255,255,255,0.2) 50%, transparent 100%);
    transform: skewX(-20deg);
}
.shine:hover::after {
    animation: shineSweep 0.65s ease forwards;
}
@keyframes shineSweep {
    from { left: -75%; }
    to   { left: 125%; }
}

/* ==========================================================
   PULSE DOT
   ========================================================== */
@keyframes pulseDot {
    0%,100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.6; transform: scale(1.5); }
}
.pulse-dot { animation: pulseDot 2s ease-in-out infinite; }

/* ==========================================================
   PROGRESS BAR
   ========================================================== */
.progress-bar {
    height: 6px;
    border-radius: 999px;
    background: #e2e8f0;
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, #2563eb, #7c3aed);
    width: 0%;
    transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

/* ==========================================================
   FORM INPUTS
   ========================================================== */
.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid #e2e8f0;
    border-radius: 0.75rem;
    font-size: 0.9375rem;
    color: #0f172a;
    background: #f8fafc;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    outline: none;
}
.form-input:focus {
    border-color: #7c3aed;
    box-shadow: 0 0 0 4px rgba(124,58,237,0.12);
    background: #ffffff;
}
.form-input::placeholder { color: #94a3b8; }

/* ==========================================================
   ALERTS
   ========================================================== */
.alert-success {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border: 1px solid #bbf7d0;
    color: #166534;
    padding: 1rem 1.25rem;
    border-radius: 0.75rem;
    font-size: 0.9375rem;
}
.alert-error {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border: 1px solid #fecaca;
    color: #991b1b;
    padding: 1rem 1.25rem;
    border-radius: 0.75rem;
    font-size: 0.9375rem;
}

/* ==========================================================
   GRADIENT SECTIONS
   ========================================================== */
/* CTA banner base - used in all pages */
.cta-section {
    background: linear-gradient(135deg, #1e1b4b 0%, #1d4ed8 40%, #6d28d9 100%);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.06) 1px, transparent 0);
    background-size: 28px 28px;
}

/* Gradient cards for stats */
.stat-card {
    background: linear-gradient(135deg, #eff6ff 0%, #f5f3ff 100%);
    border: 1px solid rgba(124,58,237,0.12);
    border-radius: 1.25rem;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(124,58,237,0.12);
}

/* Feature icon box */
.icon-box {
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eff6ff, #f5f3ff);
    border: 1px solid rgba(124,58,237,0.15);
    transition: all 0.3s ease;
}
.icon-box:hover,
.group:hover .icon-box {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
}
.icon-box:hover svg,
.group:hover .icon-box svg {
    color: #ffffff !important;
}