/* =========================================================
   TEMA LOGIN GLASSMORPHISM (TOSCA & KUNING EMAS UNA)
   Sistem Analisis FCM - Fakultas Teknik Universitas Asahan
   ========================================================= */

/* -----------------------------------------
   1. BACKGROUND & AMBIENT DECORATION
   ----------------------------------------- */
body {
    background: linear-gradient(135deg, #138D8B 0%, #004C4C 55%, #001A1A 100%);
    min-height: 100vh;
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

body::before,
body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}
body::before {
    width: 500px;
    height: 500px;
    top: -120px;
    right: -120px;
    background: radial-gradient(circle, rgba(244, 180, 26, 0.08) 0%, transparent 70%);
}
body::after {
    width: 350px;
    height: 350px;
    bottom: -80px;
    left: -80px;
    background: radial-gradient(circle, rgba(19, 141, 139, 0.15) 0%, transparent 70%);
}

/* -----------------------------------------
   2. ANIMASI
   ----------------------------------------- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

.left-col  { animation: fadeInUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both; }
.right-col { animation: fadeInUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both; }

/* -----------------------------------------
   3. LAYOUT DUA KOLOM
   ----------------------------------------- */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    width: 100%;
    max-width: 960px;
    min-height: 100vh;
    padding: 40px 32px;
    position: relative;
    z-index: 1;
}

.left-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.right-col {
    flex: 0 0 380px;
}

/* -----------------------------------------
   4. LOGO KAMPUS
   ----------------------------------------- */
.container-logo {
    margin-bottom: 28px;
}

.container-logo img {
    border-radius: 24px;
    background-color: #FFFFFF;
    padding: 12px;
    box-shadow:
        0 12px 32px rgba(0, 0, 0, 0.45),
        0 1px 0 rgba(255, 255, 255, 0.2) inset;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.container-logo img:hover {
    transform: scale(1.07) translateY(-2px);
}

/* -----------------------------------------
   5. TYPOGRAPHY — JUDUL & SUBJUDUL
   ----------------------------------------- */
.judul-skripsi {
    text-align: center;
}

.judul-skripsi h2 {
    color: #F4B41A !important;
    font-weight: 800 !important;
    font-size: 28px !important;
    letter-spacing: 0.5px;
    line-height: 1.25;
    margin-bottom: 0;
    text-shadow:
        0 2px 8px rgba(244, 180, 26, 0.35),
        0 0 30px rgba(244, 180, 26, 0.15) !important;
}

.judul-skripsi h4 {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 400 !important;
    font-size: 14px !important;
    line-height: 1.75;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4) !important;
    margin-top: 0;
}

.judul-divider {
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #F4B41A, transparent);
    margin: 12px auto;
}

/* -----------------------------------------
   6. PANEL LOGIN (FROSTED GLASS)
   ----------------------------------------- */
.custom-panel {
    background: rgba(255, 255, 255, 0.08) !important;
    backdrop-filter: blur(20px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
    border: 1px solid rgba(255, 255, 255, 0.18) !important;
    border-top: 1px solid rgba(255, 255, 255, 0.35) !important;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.45),
        0 1px 0 rgba(255, 255, 255, 0.12) inset !important;
    border-radius: 20px !important;
    padding: 36px 30px !important;
    overflow: hidden;
}

/* -----------------------------------------
   7. HEADER PANEL
   ----------------------------------------- */
.panel-head {
    text-align: left;
    margin-bottom: 26px;
}

.panel-head h3 {
    color: #FFFFFF;
    font-weight: 700;
    font-size: 22px;
    letter-spacing: 0.5px;
    margin: 0 0 6px 0;
}

.panel-head p {
    color: rgba(255, 255, 255, 0.55);
    font-size: 13px;
    margin: 0;
}

/* -----------------------------------------
   8. FORM INPUT
   ----------------------------------------- */
.custom-panel .custom-addon {
    background-color: rgba(255, 255, 255, 0.92) !important;
    border: 1.5px solid transparent !important;
    border-right: none !important;
    color: #138D8B !important;
    font-size: 17px;
    border-top-left-radius: 10px !important;
    border-bottom-left-radius: 10px !important;
    transition: all 0.25s ease;
}

.custom-panel .form-control {
    background-color: rgba(255, 255, 255, 0.92) !important;
    border: 1.5px solid transparent !important;
    border-left: none !important;
    border-top-right-radius: 10px !important;
    border-bottom-right-radius: 10px !important;
    border-top-left-radius: 0 !important;
    border-bottom-left-radius: 0 !important;
    height: 50px !important;
    font-size: 15px !important;
    color: #004C4C !important;
    box-shadow: none !important;
    transition: all 0.25s ease;
}

.custom-panel .form-control::placeholder {
    color: #9BB8B8;
}

.custom-panel .form-group {
    margin-bottom: 16px;
}

.custom-panel .input-group:hover .custom-addon,
.custom-panel .input-group:hover .form-control {
    background-color: #FFFFFF !important;
}

.custom-panel .input-group:focus-within {
    border-radius: 10px;
    box-shadow: 0 0 0 3px rgba(244, 180, 26, 0.2) !important;
}

.custom-panel .input-group:focus-within .custom-addon,
.custom-panel .input-group:focus-within .form-control {
    border-top: 1.5px solid #F4B41A !important;
    border-bottom: 1.5px solid #F4B41A !important;
    background-color: #FFFFFF !important;
}

.custom-panel .input-group:focus-within .custom-addon {
    border-left: 1.5px solid #F4B41A !important;
}

.custom-panel .input-group:focus-within .form-control {
    border-right: 1.5px solid #F4B41A !important;
    outline: none !important;
}

/* -----------------------------------------
   9. TOMBOL LOGIN
   ----------------------------------------- */
.custom-btn {
    background: linear-gradient(135deg, #F4B41A 0%, #D69E15 100%) !important;
    border: none !important;
    color: #003333 !important;
    font-size: 15px !important;
    font-weight: 800 !important;
    letter-spacing: 2.5px;
    padding: 14px !important;
    border-radius: 10px !important;
    box-shadow:
        0 5px 20px rgba(244, 180, 26, 0.4),
        0 1px 0 rgba(255, 255, 255, 0.25) inset !important;
    transition: all 0.28s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    margin-top: 8px;
}

.custom-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
    transform: skewX(-20deg);
    transition: left 0.55s ease;
}

.custom-btn:hover {
    background: linear-gradient(135deg, #FFCB3A 0%, #F4B41A 100%) !important;
    color: #002222 !important;
    transform: translateY(-3px) scale(1.01);
    box-shadow:
        0 10px 30px rgba(244, 180, 26, 0.55),
        0 1px 0 rgba(255, 255, 255, 0.3) inset !important;
}

.custom-btn:hover::after {
    left: 150%;
}

.custom-btn:active {
    transform: translateY(0) scale(0.99) !important;
    box-shadow: 0 3px 10px rgba(244, 180, 26, 0.35) !important;
}

/* -----------------------------------------
   10. FOOTER PANEL
   ----------------------------------------- */
.panel-footer-note {
    text-align: center;
    margin-top: 22px;
    color: rgba(255, 255, 255, 0.35);
    font-size: 11px;
    letter-spacing: 0.5px;
}

.panel-footer-note span {
    color: #F4B41A;
    font-weight: 600;
}

/* -----------------------------------------
   11. RESPONSIVE
   ----------------------------------------- */
@media (max-width: 768px) {
    .login-wrapper {
        flex-direction: column;
        gap: 28px;
        padding: 36px 20px;
        min-height: 100vh;
    }

    .right-col {
        flex: 0 0 auto;
        width: 100%;
        max-width: 420px;
    }

    .judul-skripsi h2 {
        font-size: 22px !important;
    }
}