@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
body {
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    min-height: 100svh;
}
:root {
  --color1: #6b7280;
  --color2: #4b5563;
}

.gradient-bg {
  background: linear-gradient(135deg, var(--color1) 0%, var(--color2) 100%);
  position: relative;
  overflow: hidden;
  transition: background 0.8s ease-in-out;
}

.fade-in {
    animation: fadeIn 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
.floating {
    animation: floating 6s ease-in-out infinite;
}
@keyframes floating {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}
.gradient-bg {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    position: relative;
    overflow: hidden;
}
.gradient-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%" r="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/><circle cx="900" cy="800" r="80" fill="url(%23a)"/></svg>');
    opacity: 0.3;
    animation: pulse 8s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.5;
    }
}
.glass-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}
.btn-primary:hover::before {
    left: 100%;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px -12px rgba(102, 126, 234, 0.4);
}
.btn-primary:active {
    transform: translateY(0);
}
.btn-secondary {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px -12px rgba(252, 182, 159, 0.4);
}
.btn-secondary:active {
    transform: translateY(0);
}
.btn-success {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px -12px rgba(168, 237, 234, 0.4);
}
.btn-success:active {
    transform: translateY(0);
}
.input-field {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    background: rgba(255, 255, 255, 0.9);
}
.input-field:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}
.result-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(248,250,252,0.9) 100%);
    border: 1px solid rgba(102, 126, 234, 0.1);
}
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    border-top-color: #667eea;
    animation: spin 1s ease-in-out infinite;
}
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}
.notification {
    animation: slideInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.logo-glow {
    filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.3));
}
.text-shadow {
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.scale-on-hover {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.scale-on-hover:hover {
    transform: scale(1.02);
}
@media (max-width: 640px) {
    .floating {
        animation: none;
    }
}
@media (pointer: coarse) {
    .btn-primary, .btn-secondary, .btn-success {
        min-height: 48px;
    }
    .input-field {
        min-height: 48px;
        font-size: 16px;
    }
}
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .glass-card {
        backdrop-filter: blur(15px);
    }
}
/* ==== RESPONSIVE FIX supaya tampilan muat di semua layar ==== */
@media (max-height: 700px) {
  body {
    min-height: auto;
  }
  .min-h-screen, .min-h-svh {
    min-height: auto;
  }
  .glass-card {
    margin: 2rem 0;
  }
}

@media (max-width: 400px) {
  .glass-card {
    padding: 1.25rem !important;
  }
  .input-field, select {
    font-size: 15px;
    padding: 10px 12px;
  }
  .btn-primary, .btn-secondary {
    font-size: 14px;
    padding: 10px 12px;
  }
  .text-center h1 {
    font-size: 1.2rem;
  }
}

/* Scroll aman di layar pendek (misal HP landscape atau keyboard muncul) */
html, body {
  overflow-y: auto;
  scroll-behavior: smooth;
}

/* Pastikan form menyesuaikan tinggi layar */
.glass-card {
  max-height: 95vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(0,0,0,0.1) transparent;
}
.glass-card::-webkit-scrollbar {
  width: 6px;
}
.glass-card::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.15);
  border-radius: 10px;
}
/* ==== Fix footer biar tidak kepotong & selalu muat ==== */

/* 1) Izinkan halaman di-scroll (override overflow hidden) */
.gradient-bg {
  overflow-y: auto !important;
}

/* 2) Pakai viewport dinamis agar tak kepotong oleh address bar mobile */
html, body {
  min-height: 100dvh; /* ganti 100vh/svh -> dynamic viewport */
}

/* 3) Beri ruang aman di bawah untuk footer (dengan safe-area iPhone) */
:root { --safe-bottom: env(safe-area-inset-bottom, 0px); }
.glass-card {
  padding-bottom: calc(1rem + var(--safe-bottom)) !important;
}

/* 4) Kalau layar pendek, kasih napas vertikal */
@media (max-height: 700px) {
  .glass-card { margin-bottom: 1rem; }
}