/* =========================================================
   KRISHNA CONSTRUCTION — SHARED STYLES
   css/main.css  |  Included on every page
   ========================================================= */

/* ── Reset & Base ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; }
body  { font-family: 'Inter', system-ui, -apple-system, sans-serif;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        color: #1e293b; background: #fff; }

/* ── Gradient text ─────────────────────────────────────── */
.grad-text {
    background: linear-gradient(135deg, #22d3ee 10%, #3b82f6 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Subtle dot-grid overlay for dark sections ─────────── */
.dot-grid {
    background-image: radial-gradient(rgba(255,255,255,0.055) 1px, transparent 1px);
    background-size: 26px 26px;
}

/* ── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: #060d1a; }
::-webkit-scrollbar-thumb { background: #0891b2; border-radius: 4px; }

/* =========================================================
   NAVBAR (Unified Corporate Header)
   ========================================================= */
#navbar {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 1000;
    background: #001942;
    border-bottom: 3px solid #e6aa24;
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background: rgba(0, 25, 66, 0.95) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

/* Image styles - Capped at 110px (approx 40% of original height) */
#nav-banner-img {
    height: 55px;
    max-width: 72vw;
    width: auto;
    object-fit: contain;
    display: block;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (min-width: 768px) {
    #nav-banner-img {
        height: 110px;
    }
    #navbar.scrolled #nav-banner-img {
        height: 70px;
    }
}

/* From xl: the full desktop nav (links + CTA buttons) sits beside the
   logo. At 110px tall the banner image renders ~570px wide and leaves
   no room for them, so it overlaps the nav links/buttons — shrink it
   here so everything fits with breathing room. */
@media (min-width: 1280px) {
    #nav-banner-img {
        height: 62px;
    }
    #navbar.scrolled #nav-banner-img {
        height: 48px;
    }
}

/* Base transparent state transitions */
#navbar .nav-container {
    margin: 0 auto;
}
#navbar .nav-container > div {
    transition: padding 0.3s ease;
}

#navbar.scrolled .nav-container > div {
    padding-top: 0.5rem !important;
    padding-bottom: 0.5rem !important;
}

/* Logo text */
.logo-name { color: white; font-weight: 800; font-size: 1.0625rem; letter-spacing: -0.01em; line-height: 1; }
.logo-sub  { color: #22d3ee; font-weight: 600; font-size: 0.625rem; letter-spacing: 0.2em; text-transform: uppercase; margin-top: 2px; }

/* Nav links with animated underline */
.nav-link {
    position: relative;
    padding-bottom: 2px;
    font-size: 0.875rem;
    font-weight: 500;
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.25s ease;
}
.nav-link:hover { color: #f1f5f9; }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: linear-gradient(90deg, #22d3ee, #3b82f6);
    border-radius: 2px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-link:hover::after { width: 100%; }
.nav-link.active       { color: #22d3ee !important; }
.nav-link.active::after{ width: 100%; }

/* CTA button in nav */
.nav-cta {
    display: inline-flex;
    align-items: center; gap: 0.4rem;
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
    color: white; font-weight: 700; font-size: 0.8125rem;
    padding: 0.625rem 1.25rem;
    border-radius: 0.625rem;
    box-shadow: 0 4px 16px rgba(6,182,212,0.3);
    transition: all 0.25s ease;
    white-space: nowrap;
}
.nav-cta:hover {
    background: linear-gradient(135deg, #22d3ee, #60a5fa);
    box-shadow: 0 6px 24px rgba(6,182,212,0.45);
    transform: translateY(-1px);
}

/* ── Mobile Menu ───────────────────────────────────────── */
#mobile-menu {
    background: rgba(9, 18, 42, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    max-height: 0; overflow: hidden; opacity: 0;
    transition: max-height 0.45s cubic-bezier(0.4,0,0.2,1), opacity 0.3s ease;
}
#mobile-menu.open { max-height: 580px; opacity: 1; }

.mobile-nav-link {
    display: block;
    padding: 0.875rem 0.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: #cbd5e1;
    border-bottom: 1px solid rgba(51,65,85,0.5);
    text-decoration: none;
    transition: color 0.2s ease, padding-left 0.2s ease;
}
.mobile-nav-link:hover { color: #22d3ee; padding-left: 0.75rem; }
.mobile-nav-link.active { color: #22d3ee; }

/* Hamburger bars */
.hb-bar {
    display: block; width: 24px; height: 2px;
    background: white; border-radius: 2px;
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1), opacity 0.25s ease;
}
.menu-open .hb-bar:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-open .hb-bar:nth-child(2) { opacity: 0; }
.menu-open .hb-bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* =========================================================
   SCROLL REVEAL
   ========================================================= */
.reveal {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.75s ease, transform 0.75s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-left {
    opacity: 0; transform: translateX(-30px);
    transition: opacity 0.75s ease, transform 0.75s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right {
    opacity: 0; transform: translateX(30px);
    transition: opacity 0.75s ease, transform 0.75s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* Stagger helpers */
.d1 { transition-delay: 0.08s !important; }
.d2 { transition-delay: 0.16s !important; }
.d3 { transition-delay: 0.24s !important; }
.d4 { transition-delay: 0.32s !important; }
.d5 { transition-delay: 0.40s !important; }
.d6 { transition-delay: 0.48s !important; }

/* =========================================================
   INNER-PAGE HERO BANNER
   ========================================================= */
.inner-hero {
    padding-top: 11.5rem;
    padding-bottom: 5.5rem;
    background: #0c1a35;
    background-image:
        radial-gradient(ellipse 60% 70% at 15% 55%, rgba(8,145,178,0.18) 0%, transparent 70%),
        radial-gradient(ellipse 50% 60% at 85% 25%, rgba(59,130,246,0.14) 0%, transparent 65%);
    position: relative;
    overflow: hidden;
}
.inner-hero-wave {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    pointer-events: none;
    line-height: 0;
}

/* =========================================================
   SECTION CHIPS / LABELS
   ========================================================= */
.chip {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-size: 0.6875rem; font-weight: 700;
    letter-spacing: 0.17em; text-transform: uppercase;
    padding: 0.375rem 0.875rem;
    border-radius: 9999px; border: 1px solid;
}
.chip-cyan  { color: #0891b2; background: #ecfeff; border-color: #a5f3fc; }
.chip-blue  { color: #2563eb; background: #eff6ff; border-color: #bfdbfe; }
.chip-slate { color: #475569; background: #f8fafc; border-color: #e2e8f0; }
.chip-amber { color: #d97706; background: #fffbeb; border-color: #fde68a; }
.chip-cyan-dk  { color: #22d3ee; background: rgba(8,145,178,0.1); border-color: rgba(34,211,238,0.2); }
.chip-white-dk { color: #94a3b8; background: rgba(148,163,184,0.08); border-color: rgba(148,163,184,0.18); }

/* =========================================================
   SERVICE CARDS
   ========================================================= */
.service-card {
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1),
                box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex; flex-direction: column;
}
.service-card:hover { transform: translateY(-7px); }

.service-checklist li { display: flex; align-items: flex-start; gap: 0.75rem; }
.service-checklist .check-dot {
    flex-shrink: 0; margin-top: 2px;
    width: 1.375rem; height: 1.375rem;
    border-radius: 0.375rem;
    display: flex; align-items: center; justify-content: center;
}

/* =========================================================
   PROJECT CARDS
   ========================================================= */
.project-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease;
}
.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 48px rgba(0,0,0,0.15);
}

/* ── Filter buttons ───────────────────────────────────── */
.filter-btn {
    font-size: 0.8125rem; font-weight: 600;
    padding: 0.5625rem 1.125rem;
    border-radius: 0.625rem;
    border: 1px solid #e2e8f0;
    color: #64748b; background: transparent;
    transition: all 0.25s ease; cursor: pointer;
}
.filter-btn:hover:not(.active) { border-color: #22d3ee; color: #0891b2; }
.filter-btn.active {
    background: #0891b2; color: white;
    border-color: #0891b2;
    box-shadow: 0 4px 14px rgba(8,145,178,0.32);
}

/* =========================================================
   PILLAR / STRENGTH CARDS
   ========================================================= */
.pillar-card {
    border: 1px solid #e2e8f0;
    background: white; border-radius: 1rem; padding: 1.75rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.pillar-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 14px 36px rgba(0,0,0,0.09);
    border-color: #bae6fd;
}

/* =========================================================
   FORM FIELDS
   ========================================================= */
.form-field {
    width: 100%;
    background: rgba(15,23,42,0.55);
    border: 1px solid rgb(51,65,85);
    color: #f1f5f9;
    border-radius: 0.625rem;
    padding: 0.8125rem 1rem;
    font-size: 0.875rem;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
    appearance: none; resize: none;
}
.form-field::placeholder { color: rgba(100,116,139,0.7); }
.form-field:focus {
    outline: none;
    border-color: #22d3ee;
    box-shadow: 0 0 0 3px rgba(34,211,238,0.13);
    background: rgba(15,23,42,0.75);
}
.form-field option { background: #1e293b; }

/* =========================================================
   CTA SECTION (shared across pages)
   ========================================================= */
.cta-section {
    background: #091628;
    position: relative; overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 65% 90% at 5% 50%, rgba(8,145,178,0.22) 0%, transparent 65%),
        radial-gradient(ellipse 55% 80% at 95% 50%, rgba(59,130,246,0.18) 0%, transparent 65%);
    pointer-events: none;
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer-col-title {
    color: #f1f5f9; font-weight: 700; font-size: 0.8125rem;
    letter-spacing: 0.06em; text-transform: uppercase;
    margin-bottom: 1.125rem;
}
.footer-link {
    display: block;
    color: #64748b; font-size: 0.875rem;
    text-decoration: none;
    transition: color 0.2s ease;
    padding: 0.2rem 0;
}
.footer-link:hover { color: #94a3b8; }

/* =========================================================
   KEYFRAME ANIMATIONS
   ========================================================= */
@keyframes pulse-ring {
    0%, 100% { opacity: 0.06; transform: scale(1); }
    50%       { opacity: 0.14; transform: scale(1.05); }
}
@keyframes float-y {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-10px); }
}
@keyframes spin-slow {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}
@keyframes slide-in-right {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes count-up-reveal {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.anim-ring   { animation: pulse-ring 5s ease-in-out infinite; }
.anim-ring-2 { animation: pulse-ring 5s ease-in-out infinite 2.5s; }
.anim-float  { animation: float-y 7s ease-in-out infinite; }
.anim-spin   { animation: spin-slow 22s linear infinite; }