/* RESET */
*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:'Poppins',sans-serif;
}

:root{
--ink:#0a0a0a;
--panel:#111;
--muted:#aaa;
--line:rgba(255,255,255,0.14);
--accent:#d9a86c;
--stone:#1b1815;
--slate:#111820;
}

body{
background:linear-gradient(180deg,#0a0a0a 0%,#111820 48%,#1b1815 100%);
color:#fff;
}


/* NAV */
.navbar{
display:flex;
justify-content:space-between;
padding:20px 8%;
background:rgba(0,0,0,0.6);
backdrop-filter:blur(12px);
position:fixed;
width:100%;
top:0;
z-index:100;
border-bottom:1px solid var(--line);
animation:nav-arrive .8s ease both;
}

.logo{
font-size:26px;
font-weight:700;
letter-spacing:3px;
color:#f6efe5;
}

.nav-links{
display:flex;
gap:25px;
list-style:none;
}

.nav-links a{
color:#fff;
text-decoration:none;
transition:color .25s ease;
}

.nav-links a:hover,
.nav-links a.active{
color:var(--accent);
}

/* HERO */
.hero{
height:100vh;
display:flex;
align-items:center;
justify-content:center;
text-align:center;
position:relative;
background:linear-gradient(120deg,rgba(17,24,32,.38),rgba(64,45,28,.22)),url("images/arch-hero.jpg") center/cover;
}

.overlay{
position:absolute;
inset:0;
background:linear-gradient(90deg,rgba(0,0,0,.86),rgba(0,0,0,.52) 55%,rgba(0,0,0,.72));
}

.hero-content{
position:relative;
max-width:800px;
padding:20px;
animation:hero-arrive 1s .15s ease both;
}

.eyebrow{
color:var(--accent);
font-size:12px;
font-weight:600;
letter-spacing:4px;
text-transform:uppercase;
margin-bottom:18px;
}

.hero h1{
font-size:60px;
font-weight:300;
letter-spacing:2px;
line-height:1.08;
}

.hero p{
color:#d0d0d0;
margin-top:15px;
line-height:1.8;
}

/* BUTTONS */
.btns{
margin-top:25px;
display:flex;
gap:15px;
justify-content:center;
flex-wrap:wrap;
}

.btn{
padding:12px 25px;
border:1px solid #fff;
color:#fff;
text-decoration:none;
transition:background .3s ease,color .3s ease,transform .3s ease,box-shadow .3s ease;
border-radius:30px;
}

.btn:hover{
background:#fff;
color:#000;
transform:translateY(-3px);
box-shadow:0 10px 24px rgba(0,0,0,.25);
}

.whatsapp{
border-color:#25D366;
}

.call{
border-color:#aaa;
}

/* ABOUT */
.about{
padding:120px 8%;
text-align:center;
background:linear-gradient(135deg,#121212,#191714);
position:relative;
overflow:hidden;
}

.about::after{
content:"";
position:absolute;
width:220px;
height:220px;
border:1px solid rgba(217,168,108,.25);
right:8%;
top:50%;
transform:translateY(-50%) rotate(45deg);
}

.about h2{
font-size:36px;
font-weight:300;
color:#fff;
position:relative;
z-index:1;
}

.about p{
color:#c0c0c0;
margin-top:10px;
line-height:1.8;
position:relative;
z-index:1;
}

.about-detail{
max-width:680px;
margin-left:auto;
margin-right:auto;
font-size:14px;
}

/* PROJECTS */
.projects{
padding:120px 8%;
text-align:center;
background:#0a0a0a;
}

.projects h2{
font-size:40px;
margin-bottom:40px;
font-weight:300;
}

.grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:20px;
}

.card{
background:linear-gradient(160deg,#151515,#0e0e0e);
border:1px solid var(--line);
overflow:hidden;
border-radius:10px;
transition:transform .35s ease,border-color .35s ease,box-shadow .35s ease;
}

.card:hover{
transform:translateY(-8px);
border-color:rgba(217,168,108,.65);
box-shadow:0 18px 35px rgba(0,0,0,.28);
}

.card img{
width:100%;
height:300px;
object-fit:cover;
transition:transform .5s ease,filter .5s ease;
}

.card:hover img{
transform:scale(1.04);
filter:saturate(1.12);
}

.card h3{
padding:15px;
font-weight:300;
color:#ccc;
}

.card p{
padding:0 15px 20px;
color:#999;
font-size:13px;
line-height:1.7;
}

/* CTA */
.cta{
padding:120px 8%;
text-align:center;
background:linear-gradient(135deg,#171411,#0f0f0f);
}

.cta h2{
font-size:38px;
font-weight:300;
}

.cta p{
color:#aaa;
margin:14px auto 0;
max-width:560px;
line-height:1.7;
}

/* FOOTER */
footer{
text-align:center;
padding:20px;
background:#000;
color:#666;
}

@keyframes hero-arrive{
from{opacity:0;transform:translateY(18px)}
to{opacity:1;transform:translateY(0)}
}

@keyframes nav-arrive{
from{opacity:0;transform:translateY(-12px)}
to{opacity:1;transform:translateY(0)}
}

@media(prefers-reduced-motion:reduce){
*,*::before,*::after{
animation-duration:.01ms!important;
transition-duration:.01ms!important;
}
}

/* MOBILE */
@media(max-width:768px){

.hero h1{
font-size:36px;
}

}

/* ================= CONTACT PAGE ================= */
.contact-hero{
height:100vh;
display:flex;
align-items:center;
justify-content:center;
text-align:center;
position:relative;
background:linear-gradient(120deg,rgba(15,24,32,.82),rgba(54,39,27,.58)),url("images/contact-arch.jpg") center/cover;
padding:20px;
animation:contact-tone 5s ease-in-out infinite alternate;
}

.contact-content{
position:relative;
max-width:700px;
z-index:2;
}

.contact-content h1{
font-size:50px;
font-weight:300;
line-height:1.1;
}

.contact-content p{
color:#d0d0d0;
margin:15px 0;
line-height:1.8;
}

.contact-content .eyebrow{
margin-bottom:18px;
}

.contact-hero .btn{
position:relative;
animation:contact-button-float 3.6s ease-in-out infinite;
}

.contact-hero .btn:nth-child(2){
animation-delay:.35s;
}

.contact-hero .whatsapp{
box-shadow:0 0 0 rgba(37,211,102,0);
}

.contact-hero .whatsapp:hover,
.contact-hero .whatsapp:focus-visible{
box-shadow:0 0 18px rgba(37,211,102,.7),0 0 38px rgba(37,211,102,.28);
}

.contact-hero .call:hover,
.contact-hero .call:focus-visible{
box-shadow:0 0 18px rgba(217,168,108,.7),0 0 38px rgba(217,168,108,.28);
border-color:var(--accent);
}

/* CONTACT BOX */
.contact-box{
margin:20px 0;
padding:20px;
border:1px solid #333;
background:rgba(0,0,0,0.6);
border-radius:10px;
box-shadow:0 18px 45px rgba(0,0,0,.3);
}

.item{
display:flex;
justify-content:center;
gap:10px;
margin:10px 0;
color:#ccc;
line-height:1.6;
}

.item i{
color:var(--accent);
}

@keyframes contact-tone{
0%{filter:saturate(.9) hue-rotate(0deg)}
100%{filter:saturate(1.08) hue-rotate(8deg)}
}

@keyframes contact-button-float{
0%,100%{transform:translateY(0)}
50%{transform:translateY(-4px)}
}