/* =============================
   ======= VARIABLER ===========
   ============================= */
:root{
  --bg-color:#000000;
  --title-color:#ffffff;
  --hint-color:#cccccc;
  --glow-color:#ffffff;
  --font-main:"Arial",sans-serif;
}

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

html,body{
  height:100%;
  width:100%;
  background:var(--bg-color);
  color:var(--title-color);
  font-family:var(--font-main);
}

/* =============================
   ========= LAYOUT ============
   ============================= */
.center-content{
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  min-height:100vh;
  text-align:center;
  padding:0 1rem;
  transform:translateY(-10%);
}

/* =============================
   ========== TITEL ============
   ============================= */
.title{
  font-size:clamp(3rem,8vw,6rem);
  color:var(--title-color);
  text-shadow:0 0 10px var(--glow-color);
  letter-spacing:3px;
  margin-bottom:2px;
  font-weight:700;
  line-height:1.1;
}

/* =============================
   ========= HINT-TEXT =========
   ============================= */
.hint{
  font-size:clamp(1rem,2vw,1.2rem);
  color:var(--hint-color);
  opacity:.8;
  font-style:italic;
  font-weight:300;
  letter-spacing:.5px;
  line-height:1.4;
  margin-bottom:25px;
}

/* =============================
   ======= START-BUTTON ========
   ============================= */
.start-btn{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  margin-top:10px;
  padding:20px 60px;
  font-size:1.3rem;
  font-weight:700;
  color:#fff;
  background:linear-gradient(145deg,#000 0%,#0a0a0a 100%);
  border:none;
  border-radius:999px;
  cursor:pointer;
  transition:transform .25s ease, box-shadow .25s ease;
  box-shadow:
    0 0 22px rgba(255,255,255,.10),
    0 0 48px rgba(255,255,255,.08);
}

.start-btn::after{
  content:"";
  position:absolute;
  inset:-20%;
  border-radius:inherit;
  background:radial-gradient(circle at 50% 50%,
    rgba(255,255,255,.22) 0%,
    rgba(255,255,255,.10) 35%,
    rgba(255,255,255,0) 70%);
  filter:blur(16px);
  opacity:0;
  animation:fillPulse 3.6s ease-in-out infinite;
  z-index:0;
}

.start-btn::before{
  content:"";
  position:absolute;
  top:0; bottom:0;
  left:-40%;
  width:32%;
  border-radius:inherit;
  background:linear-gradient(90deg,
    rgba(255,255,255,0) 0%,
    rgba(255,255,255,.18) 50%,
    rgba(255,255,255,0) 100%);
  filter:blur(10px);
  animation:sweep 2.8s ease-in-out infinite;
  z-index:1;
}

.start-btn:hover{
  transform:translateY(-3px);
  box-shadow:
    0 0 28px rgba(255,255,255,.14),
    0 0 72px rgba(255,255,255,.12);
}
.start-btn:active{ transform:translateY(0); }

/* =============================
   ========= LOGIN KNAPP =======
   ============================= */
.login-btn{
  position:fixed;
  top:16px; right:16px;
  z-index:999;
  background:linear-gradient(135deg,#ffffff,#d9d9d9);
  color:#000;
  border:none;
  border-radius:999px;
  padding:10px 24px;
  font-size:.95rem;
  font-weight:700;
  letter-spacing:.4px;
  cursor:pointer;
  box-shadow:0 4px 12px rgba(255,255,255,.25);
  transition:all .25s ease;
}
.login-btn:hover{
  background:linear-gradient(135deg,#dcdcdc,#ffffff);
  box-shadow:0 6px 20px rgba(255,255,255,.35);
  transform:translateY(-2px);
}
.login-btn:active{
  transform:translateY(0);
  box-shadow:0 2px 10px rgba(255,255,255,.2);
}

/* =============================
   ========= LOGIN MODAL =======
   ============================= */
.login-modal{
  position:fixed;
  inset:0;
  display:none;
  justify-content:center;
  align-items:center;
  z-index:2000;
}
.login-modal.show{ display:flex; }

.modal-backdrop{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.6);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
}

.modal-box{
  position:relative;
  z-index:2001;
  background:rgba(255,255,255,.95);
  color:#000;
  border-radius:16px;
  padding:2rem;
  width:min(90%,400px);
  box-shadow:0 20px 60px rgba(0,0,0,.5);
  text-align:center;
  animation:fadeIn .3s ease;
}

.close-btn{
  position:absolute;
  top:12px; right:12px;
  background:none;
  border:none;
  font-size:1.2rem;
  cursor:pointer;
  opacity:.6;
  transition:opacity .2s ease;
}
.close-btn:hover{ opacity:1; }

.modal-box h2{ margin-bottom:1rem; font-weight:700; }

.login-options{ display:flex; flex-direction:column; gap:.6rem; }
.login-option{
  border:none; border-radius:8px;
  padding:.8rem; font-weight:600; cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease;
}
.login-option:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 12px rgba(0,0,0,.15);
}
.login-option.google{ background:#fff; color:#000; }
.login-option.facebook{ background:#1877f2; color:#fff; }
.login-option.apple{ background:#000; color:#fff; }

.divider{ position:relative; text-align:center; margin:1rem 0; }
.divider span{
  background:rgba(255,255,255,.95);
  padding:0 .5rem;
  color:#444;
}
.divider::before{
  content:"";
  position:absolute; top:50%; left:0;
  width:100%; height:1px;
  background:rgba(0,0,0,.2);
  transform:translateY(-50%);
}

.manual-login{ display:flex; flex-direction:column; gap:.7rem; }
.manual-login input{
  padding:.7rem; border-radius:8px;
  border:1px solid rgba(0,0,0,.2);
  font-size:1rem;
}
.submit-btn{
  margin-top:.3rem; padding:.8rem;
  border:none; border-radius:8px;
  background:linear-gradient(135deg,#000,#333);
  color:#fff; font-weight:600; cursor:pointer;
  transition:background .3s ease;
}
.submit-btn:hover{ background:linear-gradient(135deg,#111,#444); }
.register-link{ margin-top:1rem; font-size:.9rem; color:#333; }
.register-link a{ color:#000; font-weight:600; text-decoration:none; }
.register-link a:hover{ text-decoration:underline; }

/* =============================
   ========= ONBOARDING =========
   ============================= */
#onboarding{
  display:flex;
  justify-content:center;
  align-items:center;
  min-height:100vh;
  padding:80px 16px;
  background:var(--bg-color);
  color:var(--title-color);
}

.onboarding-container{
  background:rgba(20,20,20,.85);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.08);
  border-radius:20px;
  box-shadow:
    0 0 30px rgba(255,255,255,.06),
    0 0 80px rgba(255,255,255,.03);
  padding:40px 32px;
  max-width:700px; width:100%;
  text-align:left;
  animation:fadeInUp .8s ease forwards;
  margin:0 auto;
}

.onboarding-container h2{
  font-size:clamp(1.8rem,3.5vw,2.3rem);
  font-weight:700;
  margin-bottom:10px;
  text-align:center;
  text-shadow:0 0 15px rgba(255,255,255,.15);
}
.onboarding-container .hint{
  font-size:1rem;
  color:#bdbdbd;
  text-align:center;
  margin-bottom:24px;
  font-style:normal;
}

.option-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 12px;
}

.option-buttons input[type="checkbox"] {
  display: none;
}

.option-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  position: relative;
  overflow: hidden;
  isolation: isolate;

  background: linear-gradient(145deg, #000000 0%, #111111 100%);
  color: #eaeaea;
  border: 1px solid rgba(255, 255, 255, 0.08);

  box-shadow:
    0 0 18px rgba(255, 255, 255, 0.05),
    inset 0 0 10px rgba(255, 255, 255, 0.05);

  transition: all 0.25s ease;
}

.option-btn::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle at 50% 50%,
    rgba(255,255,255,0.18) 0%,
    rgba(255,255,255,0.05) 40%,
    rgba(255,255,255,0) 70%);
  filter: blur(14px);
  opacity: 0;
  animation: softPulse 4s ease-in-out infinite;
  z-index: 0;
}

@keyframes softPulse {
  0% { opacity: 0; transform: scale(0.8); }
  50% { opacity: 0.25; transform: scale(1.05); }
  100% { opacity: 0; transform: scale(1.2); }
}

.option-btn:hover {
  background: linear-gradient(145deg, #0a0a0a, #1a1a1a);
  box-shadow:
    0 0 28px rgba(255, 255, 255, 0.12),
    inset 0 0 12px rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.option-buttons input[type="checkbox"]:checked + .option-btn {
  background: linear-gradient(145deg, #0d0d0d, #1c1c1c);
  color: #ffffff;
  border-color: rgba(255,255,255,0.25);
  box-shadow:
    0 0 35px rgba(255,255,255,0.22),
    inset 0 0 14px rgba(255,255,255,0.12);
  transform: translateY(-3px);
}

.button-row{ display:flex; justify-content:center; gap:20px; margin-top:20px; }
#onboarding .start-btn{ min-width:180px; }

/* =============================
   ======== ANIMATIONER ========
   ============================= */
@keyframes fillPulse{
  0%{ opacity:0; transform:scale(.85); }
  30%{ opacity:.35; transform:scale(1.02); }
  60%{ opacity:.22; transform:scale(1.08); }
  100%{ opacity:0; transform:scale(1.15); }
}
@keyframes sweep{
  0%{ left:-40%; opacity:.10; }
  45%{ left:55%;  opacity:.22; }
  100%{ left:120%; opacity:.10; }
}
@keyframes fadeIn{
  from{ opacity:0; transform:scale(.95); }
  to{ opacity:1; transform:scale(1); }
}
@keyframes fadeInUp{
  from{ opacity:0; transform:translateY(20px); }
  to{ opacity:1; transform:translateY(0); }
}

/* =============================
   ======== RESPONSIVT =========
   ============================= */
@media (max-width:768px){
  .title{ font-size:clamp(2.5rem,10vw,5rem); }
  .hint{ font-size:clamp(.9rem,3.5vw,1.1rem); max-width:90%; }
  .center-content{ transform:translateY(-6%); }
  .start-btn{ padding:16px 40px; font-size:1rem; }
  .login-btn{ padding:8px 18px; font-size:.9rem; }
}

/* =============================
   ==== REDUCERAD RÖRELSE ======
   ============================= */
@media (prefers-reduced-motion:reduce){
  .login-btn,.start-btn{ transition:none; animation:none; }
}
#continueSection {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #000000;
  color: #ffffff;
  text-align: center;
  animation: fadeInUp .6s ease forwards;
}

.continue-container {
  max-width: 600px;
  padding: 60px 30px;
  border-radius: 20px;
  box-shadow: 0 0 40px rgba(0,0,0,0.1);
}