/* ============================================================
   Ferreplásticos Cali S.A.S — Hoja de estilos compartida
   Contiene: reset, variables, layout base, header, botones,
   footer, animaciones y utilidades de uso global.
   ============================================================ */

/* ─── RESET GLOBAL ───────────────────────────────────────── */
* { margin: 0; padding: 0; box-sizing: border-box; }

/* Quitar decoración de links y viñetas de listas por defecto */
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ─── VARIABLES DE DISEÑO ────────────────────────────────── */
:root {
    --verde:          #7cbd41;
    --verde-light:    #a8e063;
    --verde-dark:     #5a9a2e;
    --dark-bg:        #07071a;
    --dark-card:      #0e0e24;
    --dark-elevated:  #15152e;
    --text-primary:   #ffffff;
    --text-secondary: rgba(255,255,255,0.68);
    --text-muted:     rgba(255,255,255,0.4);
    --border-subtle:  rgba(124,189,65,0.14);
    --border-hover:   rgba(124,189,65,0.45);
    --glow:           rgba(124,189,65,0.22);
    --glow-strong:    rgba(124,189,65,0.45);
    --azul:           #1565c0;
    --azul-light:     #1e88e5;
    --glow-azul:      rgba(21,101,192,0.32);
    --header-h:       100px;
    --radius-sm:      10px;
    --radius-md:      18px;
    --radius-lg:      28px;
    --transition:     0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Nunito', sans-serif; /* Fuente principal del proyecto */
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.65;
    overflow-x: hidden;
}

/* ─── SCROLL REVEAL ─────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(45px);
    transition: opacity 0.75s ease, transform 0.75s ease;
}
.reveal-left {
    opacity: 0;
    transform: translateX(-45px);
    transition: opacity 0.75s ease, transform 0.75s ease;
}
.reveal-right {
    opacity: 0;
    transform: translateX(45px);
    transition: opacity 0.75s ease, transform 0.75s ease;
}
.reveal.visible,
.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: none;
}
.d1 { transition-delay: 0.1s; }
.d2 { transition-delay: 0.2s; }
.d3 { transition-delay: 0.3s; }
.d4 { transition-delay: 0.4s; }
.d5 { transition-delay: 0.5s; }
.d6 { transition-delay: 0.6s; }

/* ─── HEADER ─────────────────────────────────────────────── */
header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1.1rem 0;
    transition: all 0.4s ease;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
}
header.scrolled {
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(0,0,0,0.08);
    padding: 0.7rem 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.08);
}
nav {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo-text {
    font-family: 'Nunito', sans-serif;
    font-size: 1.65rem;
    font-weight: 900;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
    transition: opacity var(--transition);
}
.logo-text:hover { opacity: 0.85; }
.logo-text span { color: var(--verde); }

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}
.nav-links a {
    color: #262262;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color var(--transition);
    position: relative;
    padding-bottom: 4px;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--verde);
    transition: width var(--transition);
    border-radius: 2px;
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a:hover,
.nav-links a.active { color: var(--verde); }

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 6px;
    z-index: 1100;
}
.hamburger span {
    display: block;
    width: 26px; height: 2px;
    background: #262262;
    border-radius: 2px;
    transition: all 0.35s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav overlay */
.mobile-nav {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(7,7,26,0.98);
    backdrop-filter: blur(20px);
    z-index: 1050;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}
.mobile-nav.open {
    display: flex;
    opacity: 1;
    pointer-events: all;
}
.mobile-nav a {
    font-family: 'Nunito', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s;
    position: relative;
}
.mobile-nav a:hover { color: var(--verde); }

/* ─── BUTTONS ─────────────────────────────────────────────── */
.btn {
    padding: 0.9rem 2.2rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    font-family: 'Nunito', sans-serif; /* Coherencia tipográfica con el resto del sitio */
    white-space: nowrap;
}
.btn-primary {
    background: var(--verde);
    color: #fff;
    box-shadow: 0 4px 24px var(--glow);
}
.btn-primary:hover {
    background: var(--verde-light);
    transform: translateY(-3px);
    box-shadow: 0 10px 36px var(--glow-strong);
}
.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(255,255,255,0.25);
}
.btn-secondary:hover {
    border-color: var(--verde);
    color: var(--verde);
    transform: translateY(-3px);
    background: rgba(124,189,65,0.07);
}
.btn-outline-verde {
    background: transparent;
    color: var(--verde);
    border: 2px solid var(--verde);
}
.btn-outline-verde:hover {
    background: var(--verde);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 8px 28px var(--glow);
}
.coverage .btn-primary {
    background: var(--azul);
    box-shadow: 0 4px 24px var(--glow-azul);
}
.coverage .btn-primary:hover {
    background: var(--azul-light);
    box-shadow: 0 10px 36px var(--glow-azul);
}

/* ─── SECTION LABELS & HEADERS ───────────────────────────── */
.label {
    display: inline-block;
    color: var(--verde);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 3.5px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    position: relative;
    padding-left: 1.6rem;
}
.label::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    width: 14px; height: 2px;
    background: var(--verde);
    transform: translateY(-50%);
    border-radius: 2px;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}
.section-header h2 {
    font-family: 'Nunito', sans-serif;
    font-size: 2.9rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
}
.section-header h2 .grad {
    background: linear-gradient(135deg, var(--verde) 0%, var(--verde-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto;
}

/* ─── PAGE BANNER ─────────────────────────────────────────── */
.page-banner {
    margin-top: var(--header-h);
    background: var(--dark-card);
    padding: 7rem 2rem 5.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-banner::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 70% 80% at 20% 50%, rgba(124,189,65,0.10) 0%, transparent 70%),
        radial-gradient(ellipse 60% 70% at 80% 30%, rgba(38,34,98,0.35) 0%, transparent 70%);
}
.page-banner-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(124,189,65,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124,189,65,0.04) 1px, transparent 1px);
    background-size: 55px 55px;
}
.page-banner-inner {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}
.page-banner h1 {
    font-family: 'Nunito', sans-serif;
    font-size: 3.6rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.2rem;
    animation: fadeInUp 0.6s ease;
}
.page-banner p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    animation: fadeInUp 0.6s ease 0.18s backwards;
}
.page-banner .verde { color: var(--verde); font-weight: 600; }
.page-banner .label         { color: #262262; }
.page-banner .label::before { background: #262262; }

/* ─── GLASS CARD ─────────────────────────────────────────── */
.glass {
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}
.glass:hover {
    background: rgba(124,189,65,0.06);
    border-color: rgba(124,189,65,0.28);
    box-shadow: 0 24px 60px rgba(0,0,0,0.35), 0 0 0 1px rgba(124,189,65,0.18);
    transform: translateY(-7px);
}

/* ─── FOOTER ─────────────────────────────────────────────── */
footer {
    background: #04040f;
    border-top: 1px solid var(--border-subtle);
    padding: 5rem 2.5rem 2.5rem;
}
.footer-grid {
    max-width: 1440px;
    margin: 0 auto 4rem;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3.5rem;
}
.footer-brand .logo-text { display: inline-block; margin-bottom: 1.2rem; }
.footer-brand > p {
    color: var(--text-secondary);
    font-size: 0.97rem;
    line-height: 1.85;
    margin-bottom: 1.8rem;
    max-width: 300px;
}
.footer-social { display: flex; gap: 0.8rem; }
.social-btn {
    width: 40px; height: 40px;
    border-radius: 10px;
    background: var(--dark-elevated);
    border: 1px solid var(--border-subtle);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all var(--transition);
}
.social-btn:hover {
    background: var(--verde);
    border-color: var(--verde);
    color: #fff;
    transform: translateY(-3px);
}

.footer-col h5 {
    color: var(--verde);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    margin-bottom: 1.6rem;
}
.footer-col a,
.footer-col p {
    color: var(--text-muted);
    text-decoration: none;
    display: block;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    transition: color var(--transition);
}
.footer-col a:hover { color: var(--verde); }

.footer-bottom {
    max-width: 1440px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.06);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}
.footer-bottom p { color: var(--text-muted); font-size: 0.88rem; }
.footer-bottom span { color: var(--verde); }

/* ─── WHATSAPP FLOAT ─────────────────────────────────────── */
.whatsapp-float {
    position: fixed;
    bottom: 28px; right: 28px;
    width: 60px; height: 60px;
    background: #262262;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 6px 28px rgba(38,34,98,0.45);
    z-index: 9999;
    transition: all 0.35s ease;
    animation: wapulse 2.8s ease-in-out infinite;
    text-decoration: none;
}
.whatsapp-float:hover {
    transform: scale(1.15);
    box-shadow: 0 10px 40px rgba(38,34,98,0.7);
}
.whatsapp-float svg { width: 30px; height: 30px; fill: #fff; }

/* ─── ANIMATIONS ─────────────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(32px); }
    to   { opacity: 1; transform: none; }
}
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-24px); }
    to   { opacity: 1; transform: none; }
}
@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.88); }
    to   { opacity: 1; transform: scale(1); }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-18px); }
}
@keyframes orbFloat {
    0%, 100% { transform: translate(0,0) scale(1); }
    33%       { transform: translate(40px,-35px) scale(1.06); }
    66%       { transform: translate(-25px,25px) scale(0.94); }
}
@keyframes wapulse {
    0%,100% { box-shadow: 0 6px 28px rgba(38,34,98,0.45); }
    50%      { box-shadow: 0 6px 48px rgba(38,34,98,0.75); }
}
@keyframes rotateSlow {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}
@keyframes shimmer {
    0%   { background-position: -400% center; }
    100% { background-position: 400% center; }
}
@keyframes borderGlow {
    0%,100% { box-shadow: 0 0 0 0 var(--glow); }
    50%      { box-shadow: 0 0 0 8px transparent; }
}
@keyframes gradientShift {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes countUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: none; }
}

/* ─── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 1100px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .section-header h2 { font-size: 2.4rem; }
    .page-banner h1 { font-size: 2.8rem; }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .footer-brand > p { max-width: none; }
    .whatsapp-float { bottom: 18px; right: 18px; width: 52px; height: 52px; }
    .whatsapp-float svg { width: 25px; height: 25px; }
    .section-header h2 { font-size: 2rem; }
    .page-banner h1 { font-size: 2.1rem; }
    .page-banner { padding: 5.5rem 1.5rem 4rem; }
}
@media (max-width: 480px) {
    .btn { padding: 0.8rem 1.6rem; font-size: 0.9rem; }
    .section-header h2 { font-size: 1.75rem; }
}